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CORE 2 QUAD TEMPARETURE
- Thread starter ravixx11
- Start date
hmm mamath vista forum ekaka dakka... mara upset eka.. ikmanatama mona hari karanna wei...nEoN_wHitE said:i think normal nam 45-50 wage thamai thiyenna one neda...
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ya ehema wenath puluwna.. eka stick karana kota hariyata touch wel anathuwa or compound eka gavila gavila hriyata gavila natham also case.. mageth ohoma case awa..ravixx11 said:hmm mamath vista forum ekaka dakka... mara upset eka.. ikmanatama mona hari karanna wei...
pase kohomath mama OC karana kota new heatzink ekak gatha.. pase dan nam no aul
yupravixx11 said:coretemp... everest walata wadiya hondaida?
eka nican window ekak avila penanawa.. mama duna thread eka balanna.. eke okoma thiyanwa.. karanna one dewal.. eka danma kiyala moanwtah slow wene wath mukuth wenne na...
podak coretemp eka dala balanna
Core 2 Quad and Duo Temperature Guide - by CompuTronix
Copyright © 2007 - 2008
All rights reserved.
Rev. 81022
I
Use CPU-Z (see Section 8) to read processor information including the Revision field below the Stepping field, then choose a Scale below which matches the CPU being tested. Scales are ordered from highest to lowest Tcase Max.
Scale 1: Duo
E8x00: Tcase Max 74c, Stepping E0, TDP 65W, Idle 8W
E7x00: Tcase Max 74c, Stepping M0,TDP 65W, Idle 8W
E5200: Tcase Max 74c, Stepping M0,TDP 65W, Idle 8W
E4700: Tcase Max 73c, Stepping G0, TDP 65W, Idle 8W
E4x00: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
E2xx0: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
E8600: Tcase Max 72c, Stepping E0, TDP 65W, Idle 8W
E8xx0: Tcase Max 72c, Stepping C0, TDP 65W, Idle 8W
E6x50: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W
E6540: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W
-Tcase/Tjunction-
--70--/--75--75-- Hot
--65--/--70--70-- Warm
--60--/--65--65-- Safe
--25--/--30--30-- Cool
Scale 2: Quad
Q9x50: Tcase Max 71c, Stepping E0, TDP 95W, Idle 16W
Q9x50: Tcase Max 71c, Stepping C1, TDP 95W, Idle 16W
Q9400: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q9300: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q8200: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q8200: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q6x00: Tcase Max 71c, Stepping G0, TDP 95W, Idle 16W
-Tcase/Tjunction-
--70--/--75--75--75--75-- Hot
--65--/--70--70--70--70-- Warm
--60--/--65--65--65--65-- Safe
--25--/--30--30--30--30-- Cool
Scale 3: Quad
QX6x50: Tcase Max 65c, Stepping G0, TDP 130W, Idle 16W
QX6800: Tcase Max 65c, Stepping G0, TDP 130W, Idle 16W
QX6700: Tcase Max 65c, Stepping B3, TDP 130W, Idle 24W
QX9650: Tcase Max 64c, Stepping C1, TDP 130W, Idle 16W
QX9650: Tcase Max 64c, Stepping C0, TDP 130W, Idle 16W
QX9775: Tcase Max 63c, Stepping C0, TDP 150W, Idle 16W
-Tcase/Tjunction-
--65--/--70--70--70--70-- Hot
--60--/--65--65--65--65-- Warm
--55--/--60--60--60--60-- Safe
--25--/--30--30--30--30-- Cool
Scale 4: Quad
Q6600: Tcase Max 62c, Stepping B3, TDP 105W, Idle 24W
-Tcase/Tjunction-
--60--/--65--65--65--65-- Hot
--55--/--60--60--60--60-- Warm
--50--/--55--55--55--55-- Safe
--25--/--30--30--30--30-- Cool
Scale 5: Duo
E6x00: Tcase Max 61c, Stepping L2, TDP 65W, Idle 12W
E4x00: Tcase Max 61c, Stepping L2, TDP 65W, Idle 12W
E21x0: Tcase Max 61c, Stepping L2, TDP 65W, Idle 8W
X6800: Tcase Max 60c, Stepping B2, TDP 75W, Idle 24W
E6x00: Tcase Max 60c, Stepping B2, TDP 65W, Idle 24W (Spec# SL9S)
E6x00: Tcase Max 60c, Stepping B2, TDP 65W, Idle 12W (Spec# SL9Z)
E6x20: Tcase Max 60c, Stepping B2, TDP 65W, Idle 12W
-Tcase/Tjunction-
--60--/--65--65-- Hot
--55--/--60--60-- Warm
--50--/--55--55-- Safe
--25--/--30--30-- Cool
Scale 6: Quad
QX9770: Tcase Max 56c, Stepping C1, TDP 136W, Idle 16W
QX6800: Tcase Max 55c, Stepping B3, TDP 130W, Idle 24W
-Tcase/Tjunction-
--55--/--60--60--60--60-- Hot
--50--/--55--55--55--55-- Warm
--45--/--50--50--50--50-- Safe
--25--/--30--30--30--30-- Cool
Section 7: Parameters
(A) NO temperatures can be less than Ambient.
(B) Standard Ambient temperature is specified at 22c.
(C) All temperatures increase as Ambient, clock and Vcore increase.
(D) Tcase to Tjunction Delta is 5c during Prime95 Small FFT's at stock settings.
(E) Tcase and Tjunction should not exceed Hot Scale during Prime95 Small FFT's.
(F) Vcore Load should not exceed 1.3625 volts on 45nm processors.
(G) Vcore Load should not exceed 1.5 volts on 65nm processors.
(H) Idle to Load Delta may exceed 25c when overclocked.
Section 8: Tools
Hardware:
A trusted indoor thermometer, analog or digital, will be needed to measure Ambient. The accuracy of this device and measurement will determine the overall accuracy of the Calibrations.
Software:
CPU-Z and SpeedFan will be used to Calibrate Tcase at Idle. Prime95 will be used in addition to CPU-Z and SpeedFan to Calibrate Tjunction at Load. SpeedFan will then be used to permanently monitor temperatures.
Use the following links to download and install these utilities:
CPU-Z 1.48: http://www.cpuid.com/cpuz.php
Prime95 25.6: http://files.extremeoverclocking.com/file.php?f=103
SpeedFan 4.35: http://www.almico.com/speedfan.php
Note 1: Prime95 - When run for the first time, it is necessary to click on Advanced, then click on Round off checking so that errors caused by instabilities will be flagged as they occur. Prime95 25.6 will automatically thread all Cores, and will expose insufficient CPU cooling and computer case cooling, or excessive Vcore and overclock. At no other time will a CPU be as heavily loaded, or display higher temperatures, even when OC'd during worst-case loads such as gaming or video editing. Prime95 can be used with SpeedFan to observe CPU temps, while stress testing for system stability. During single threaded gaming and applications, Core 0 typically carries heavier loads and higher temps than other Cores.
Note 2: SpeedFan - Very flexible and configurable, SpeedFan is the preferred temperature monitoring utility because Tcase and Tjunction can be Calibrated. SpeedFan detects and labels thermal sensors according to various motherboard, chipset and super I/O chip configurations, so the label for Tcase can be CPU, Temp 1, Temp 2, or Temp 3. Even if Tcase is labeled as CPU, it is still necessary to confirm the identity of Tcase prior to performing Calibrations.
Repeatedly start and stop Prime95 Small FFT's at 15 second intervals, while observing which SpeedFan temperature scales with an Idle to Load Delta similar to the Cores. This will identify the label corresponding to Tcase. Labels can later be renamed using the Configure button. See Section 11.
If a temperature shows a flame icon, this indicates alarm limits which require adjustment. Use the Configure button to set CPU and Core temp alarms to Warm Scale. If a temperature shows Aux 127, this is simply an unassigned input which can be disabled using the Configure button. See Section 11.
Section 9: Calibrations
Prerequisites:
(A) CPU cooler correctly installed.
(B) Print this Section to use for BIOS settings and Calibrations.
(C) Record or photo or Save Profile all BIOS settings for quick restore when Calibrations are complete.
(D) Test Setup: Standardized configuration for maximum cooling at Auto Vcore, Frequency and Multiplier.
Computer Case Covers = Removed
Computer Case Fans = Manual 100% RPM
CPU Fan = Manual 100% RPM
CPU Frequency = Auto
CPU Internal Thermal Control = Enabled
Enhanced C1 Control (C1E) = Enabled
Internet = Disconnected
Memory Frequency = Auto
PECI (If Equipped) = Enabled
Speedstep (EIST) = Enabled
Vcore = Auto
Vdimm = Auto
Windows Programs = Closed
Note: It is preferred that Calibrations are conducted as close to 22c Ambient as possible to allow for a normal temperature ceiling for Load testing, and to maintain environmental consistency for more uniform comparisons among C2Q / C2D variants and system platforms.
The following two part procedure is designed to achieve two objectives:
Provide minimum Ambient to Tcase Delta for accurate Tcase Idle Calibration.
Provide maximum Tcase to Tjunction Delta for accurate Tjunction Load Calibration.
Part 1: Calibration - Tcase Idle (Uses maximum cooling at minimum Vcore, Frequency and Multiplier)
Note 1: If BIOS does not respond properly to Auto Vcore, Frequency and Multiplier settings, then use an appropriate combination of manual settings to provide the following:
CPU Frequency = 1.6 Ghz
Vcore = 1.10
(A) Measure Ambient near the computer case air intake, clear of warm exhaust. A trusted indoor thermometer, analog or digital, will suffice. The accuracy of this device and measurement will determine the overall accuracy of the Calibrations.
(B) Boot into Windows. Close all programs, background processes, SETI, Folding and Tray software. Press Ctrl-Alt-Delete, click on Task Manager, then click on the Performance tab to confirm CPU Usage is less than 2%. Use the Applications and Processes tabs to close programs if necessary.
(C) Open CPU-Z and SpeedFan. Observe CPU-Z for Intel's Speedstep to decrease Core Voltage, Core Speed and Multiplier to minimum values. Observe SpeedFan, allow 10 minute at Idle to ensure that temperatures decrease to minimums, then record Tcase Idle.
(D) Tcase Idle = Ambient + Z.
Z compensates for Idle power dissipation and CPU cooler efficiency. Use the Scales in Section 6 to find "X" Idle power, use the links in Section 14 to find "Y" cooler efficiency, use the table and formula below to find "Z", then add Ambient to find Tcase Idle.
X = 2 . . . Idle power: 8W . . . . Y = 2 . . . . Cooler efficiency: high-end
X = 3 . . . Idle power: 12W . . . Y = 3 . . . . Cooler efficiency: high mid-range
X = 4 . . . Idle power: 16W . . . Y = 4 . . . . Cooler efficiency: mid-range
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 5 . . . . Cooler efficiency: low mid-range
X = 6 . . . Idle power: 24W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 7 . . . . Cooler efficiency: low-end
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 11 . . . Cooler efficiency: Stock Intel
(X + Y) / 2 = Z
Z + Ambient = Tcase Idle.
Note 2: CPU and cooler combinations which are both lapped may subtract 1c.
Example 1: Duo
Idle power: E2160, Stepping M0, Idle 8W, so X = 2.
Cooler efficiency: high-end - Sunbeamtech Core Contact Freezer, so Y = 2.
(2 + 2) / 2 = 2, so Z = 2.
Ambient = 22c.
2 + 22 = 24, so Tcase Idle = 24c.
Example 2: Quad
Idle power: Q9550, Stepping E0, Idle 16W, so X = 4.
Cooler efficiency: mid-range - Arctic Cooling Freezer 7 Pro, so Y = 4.
(4 + 4) / 2 = 4, so Z = 4.
Ambient = 22c.
4 + 22 = 26, so Tcase Idle = 26c.
Example 3: Quad
Idle power: Q6600, Stepping B3, Idle 24W, so X = 6.
Cooler efficiency: Stock Intel, so Y = 11.
(6 + 11) / 2 = 8.5, rounded off to 9, so Z = 9.
Ambient = 22c.
9 + 22 = 31, so Tcase Idle = 31c.
(E) Configure Offset correction as shown in Section 11. Since the Tcase sensor was designed to be linear from Idle to Load, Tcase Load will also be accurate.
Part 2: Calibration - Tjunction Load (Uses maximum cooling at Stock Vcore, Frequency and Multiplier)
Note 1: If BIOS does not respond properly to Auto Vcore, Frequency and Multiplier settings, then use an appropriate combination of manual settings to provide the following:
CPU Frequency = Stock Ghz
Vcore = 1.25
(A) Start Prime95 Small FFT's. Observe CPU-Z for Intel's Speedstep to increase Core Voltage, Core Speed and Multiplier to Stock values. Observe SpeedFan. Heat saturation is typically reached within 7 to 8 minutes, so allow 10 minutes at Load to assure that temperatures increase to maximums, then record Tjunction for each Core.
(B) Tjunction Load = Tcase Load + 5c.
Example 1: Duo
Tcase Load = 45c
Tjunction Load = 50c
-Tcase/Tjunction-
--45--/--50--50--
Example 2: Quad
Tcase Load = 45c
Tjunction Load = 50c
-Tcase/Tjunction-
--45--/--50--50--50--50--
(C) Configure Offset corrections as shown in Section 11.
(D) Stop Prime95, then allow the system to Idle for 10 minutes. Tjunction Idle should be ~ 3c higher than Tcase.
Note 2: Tjunction sensors were designed to be linear at high temperatures for Throttle and Shutdown protection, so Idle could indicate too low on 65 nanometer variants, or too high on 45 nanometer variants, many of which have faulty sensors that won't Idle below certain temperatures. Sensors can be tested using Real Temp 2.7 - http://www.techpowerup.com/realtemp/
If Tjunction Idle is not ~ 3 higher than Tcase, then use Tcase Idle for accuracy.
(E) Repeat Item (A) and allow Prime95 to run past 10 minutes while reinstalling covers. If temperatures increase, then computer case cooling should be improved.
(F) Restore the system to original or custom BIOS settings and hardware / software preferences.
Section 10: Results and Variables
Prime95 Small FFT's should verify that Tjunction Load is Tcase + 5c. If temperatures do not meet the Parameters, then check the Test Setup and repeat Parts 1 and 2. Remember that Tcase and Tjunction tend to converge at Idle and diverge at Load due to Variables such as Vcore and CPU cooler efficiency. Low Vcore and clock may cause Tcase to Tjunction Delta to indicate less than 3c at Idle on an E2xxx, while a heavily overclocked Q6xxx with high Vcore may exceed Tcase to Tjunction Delta of 7c at Load.
If temperatures are allowed to increase beyond Hot Scale, then ~ 5c below Tjunction Max Throttling is activated. If Core temperatures increase further to Tjunction Max, then Shutdown occurs. Since Tcase Max will be exceeded before Tjunction Max is reached, Tcase Max is always the limiting thermal specification.
It is not recommended to continually operate processors, overclocked or stock, at Hot Scale for reasons of stability and longevity.
The following Examples each represent typical overclocked systems, which have moderately high Vcore settings, yet still maintain Safe temperatures at 100% Workload. Note that Tcase to Tjunction Delta shows 7c at Load due to high Vcore. This is normal and expected, since 5c was Calibrated using a Test Setup standardized for maximum cooling capacity at Stock Vcore, Frequency and Multiplier settings.
Example 1: Duo
Tcase = 29c Idle, 60c Load (SpeedFan: CPU or Temp x)
Tjunction = 32c Idle, 67c Load (SpeedFan: Core x)
Ambient = 22c
Chipset = P45
CPU = E8400
CPU Cooler= Arctic Cooling Freezer 7 Pro
Frequency = 4.0 Ghz
Load = Prime95 - Small FFT's - 10 minutes
Motherboard = Asus P5Q Deluxe
Stepping = C0
Vcore Load = 1.325
Example 2: Quad
Tcase = 31c Idle, 60c Load (SpeedFan: CPU or Temp x)
Tjunction = 34c Idle, 67c Load (SpeedFan: Core x)
Ambient = 22c
Chipset = P35
CPU = Q6600
CPU Cooler= Sunbeamtech Core Contact Freezer
Frequency = 3.6 Ghz
Load = Prime95 - Small FFT's - 10 minutes
Motherboard = Asus P5K Deluxe
Stepping = G0
Vcore Load = 1.45
Idle to Load Delta will vary among systems due to inconsistencies such as Ambient temp, Vcore, clock frequencies, sensor linearity, CPU cooling, heat spreader and heat sinc flatness, thermal compound, computer case cooling, graphics card(s) cooling, and software processes. Excessive background processes running simultaneously may not allow low Idle temps. Low Vcore and stock clock may result in low Idle to Load Delta. High Vcore and overclock may exceed 25c Idle to Load Delta, as shown above.
Erroneous BIOS Calibrations from motherboard manufacturers, Factory Calibrations from Intel, and popular temperature monitoring utilities often result in Tcase and Tjunction inaccuracies. Since Intel's Thermal Diode spec is +/-1c, temperatures can still be accurate when SpeedFan is properly Calibrated, which should indicate Core temperatures that are within a few degrees of Real Temp 2.7.
Section 11: Offsets
SpeedFan can be configured to correct for inaccurate Tcase (CPU or Temp x) and Tjunction (Core x).
(A) From the Readings tab, click on the Configure button, then click on the Advanced tab, and click on the Chip field, directly under the tabs.
(B) Next, go to SpeedFan's installation Program Group, and click on the Help and HOW-TO Icon. This help file can also be found by searching for the filename speedfan.chm.
(C) Under Contents, click on How to configure, then click on How to set Advanced Options. Read this section, including Other interesting options, with emphasis on Temperature x offset.
(D) If additional help is needed, click on the following link to SpeedFan's homepage, then click on the Support, Articles, Screenshots and F.A.Q. tabs: http://www.almico.com/speedfan.php
When CPU and Core Offsets have been completed, SpeedFan will be accurate. SpeedFan is also extremely useful for observing temperatures and Vcore using the Charts tab, while thermal benchmarking with Prime95 Small FFT's.
Tips:
(A) Tcase may be labeled as CPU, Temp 1, Temp 2 or Temp 3, but is most frequently labeled as Temp 2. Follow Section 8, Note 2 to correctly identify which label corresponds to Tcase.
(B) Tjunction is labeled Core 0, Core 1, etc.
(C) Graphics Processors are labeled Core.
(D) Graphics Cards which display a sensor labeled Ambient, must not be used for measuring room temperature.
(E) SpeedFan flame Icons are alarm limits which can be adjusted to Warm Scale using the Configure button.
(F) SpeedFan Aux 127 is an unassigned input which can be disabled using the Configure button.
(G) Core 0 typically carries heavier loads and higher temps during single threaded gaming and applications, so SpeedFan should be configured to "Show in Tray" Core 0.
Section 12: Overclocking
Intel's Thermal Design Power (TDP) spec can be exceeded by over 50% when CPU frequency is aggressively overclocked, and Vcore is increased to maintain stability. When the default Vcore spec (on the retail box) is increased by just 10%, it becomes difficult to maintain Safe Scale with high-end cooling. As Ambient temperature increases, Vcore and overclock may need to be decreased.
Every processor is unique in it's overclock potential, voltage tolerance, and thermal behavior. If the maximum stable overclock is known at 1.35 Vcore (65nm) or 1.225 Vcore (45nm), then ~ 300 Mhz of additional overclock remains until Safe Scale is exeeded due to increased Vcore. Each increase of 0.05 volts will typically allow a stable increase of ~ 100 Mhz, and will result in a corresponding increase in CPU and Core temperatures of 3 to 4c.
At 1.5 Vcore Max (65nm) or 1.3625 Vcore Max (45nm) with 100% Workload and 22c Ambient, highly effective CPU cooling and computer case cooling are required to maintain Safe Scale and stability. Ambient and Vcore are the most dominant Variables affecting temperatures.
For more Overclocking information, please refer to the following link: HOWTO: Overclock C2Q (Quads) and C2D (Duals) - A Guide v1.6.1 http://www.tomshardware.com/forum/ [...] uals-guide
Section 13: Heat Score
The following items will enable users to estimate cooling efficiency, identify problem areas, and visualize how environment and system configuration impacts real-world thermal performance. Graphics cards which recirculate heat are a major cause of high temps in gaming rigs, therefore, cards designed with Dual-Slot rear exhaust are preferred.
(A) Ambient:
3 = Over 24c
2 = 22c to 24c
1 = Under 22c
(B) CPU Cooler:
3 = Stock or low-end
2 = Mid-range
1 = High-end
(C) Computer Case Cooling:
3 = Needs improvement
2 = Fair
1 = Excellent
(D) Frequency:
3 = Heavy OC
2 = Moderate OC
1 = Stock or light OC
(E) Graphics Cooling:
3 = Recirculate - dual cards
2 = Recirculate - single card
1 = Rear exhaust - single card / SLI / CrossFire
(F) Hard Drives:
3 = 4 or More
2 = 2 or 3
1 = 1
(G) Vcore: 65nm processors
3 = Over 1.425
2 = 1.35 to 1.425
1 = Under 1.35
(OR)
(G) Vcore: 45nm processors
3 = Over 1.30
2 = 1.225 to 1.30
1 = Under 1.225
Total: (Example System)
(A) = 2
(B) = 2
(C) = 1
(D) = 3
(E) = 1
(F) = 2
(G) = 3
Heat Score = 14
Scale:
17 - 21 = Hot
12 - 16 = Warm
7 - 11 = Safe
I hope this helps to bring Core 2 Quad and Duo temperatures into perspective. Thank you
Copyright © 2007 - 2008
All rights reserved.
Rev. 81022
I
Use CPU-Z (see Section 8) to read processor information including the Revision field below the Stepping field, then choose a Scale below which matches the CPU being tested. Scales are ordered from highest to lowest Tcase Max.
Scale 1: Duo
E8x00: Tcase Max 74c, Stepping E0, TDP 65W, Idle 8W
E7x00: Tcase Max 74c, Stepping M0,TDP 65W, Idle 8W
E5200: Tcase Max 74c, Stepping M0,TDP 65W, Idle 8W
E4700: Tcase Max 73c, Stepping G0, TDP 65W, Idle 8W
E4x00: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
E2xx0: Tcase Max 73c, Stepping M0, TDP 65W, Idle 8W
E8600: Tcase Max 72c, Stepping E0, TDP 65W, Idle 8W
E8xx0: Tcase Max 72c, Stepping C0, TDP 65W, Idle 8W
E6x50: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W
E6540: Tcase Max 72c, Stepping G0, TDP 65W, Idle 8W
-Tcase/Tjunction-
--70--/--75--75-- Hot
--65--/--70--70-- Warm
--60--/--65--65-- Safe
--25--/--30--30-- Cool
Scale 2: Quad
Q9x50: Tcase Max 71c, Stepping E0, TDP 95W, Idle 16W
Q9x50: Tcase Max 71c, Stepping C1, TDP 95W, Idle 16W
Q9400: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q9300: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q8200: Tcase Max 71c, Stepping M1, TDP 95W, Idle 16W
Q8200: Tcase Max 71c, Stepping R0, TDP 95W, Idle 16W
Q6x00: Tcase Max 71c, Stepping G0, TDP 95W, Idle 16W
-Tcase/Tjunction-
--70--/--75--75--75--75-- Hot
--65--/--70--70--70--70-- Warm
--60--/--65--65--65--65-- Safe
--25--/--30--30--30--30-- Cool
Scale 3: Quad
QX6x50: Tcase Max 65c, Stepping G0, TDP 130W, Idle 16W
QX6800: Tcase Max 65c, Stepping G0, TDP 130W, Idle 16W
QX6700: Tcase Max 65c, Stepping B3, TDP 130W, Idle 24W
QX9650: Tcase Max 64c, Stepping C1, TDP 130W, Idle 16W
QX9650: Tcase Max 64c, Stepping C0, TDP 130W, Idle 16W
QX9775: Tcase Max 63c, Stepping C0, TDP 150W, Idle 16W
-Tcase/Tjunction-
--65--/--70--70--70--70-- Hot
--60--/--65--65--65--65-- Warm
--55--/--60--60--60--60-- Safe
--25--/--30--30--30--30-- Cool
Scale 4: Quad
Q6600: Tcase Max 62c, Stepping B3, TDP 105W, Idle 24W
-Tcase/Tjunction-
--60--/--65--65--65--65-- Hot
--55--/--60--60--60--60-- Warm
--50--/--55--55--55--55-- Safe
--25--/--30--30--30--30-- Cool
Scale 5: Duo
E6x00: Tcase Max 61c, Stepping L2, TDP 65W, Idle 12W
E4x00: Tcase Max 61c, Stepping L2, TDP 65W, Idle 12W
E21x0: Tcase Max 61c, Stepping L2, TDP 65W, Idle 8W
X6800: Tcase Max 60c, Stepping B2, TDP 75W, Idle 24W
E6x00: Tcase Max 60c, Stepping B2, TDP 65W, Idle 24W (Spec# SL9S)
E6x00: Tcase Max 60c, Stepping B2, TDP 65W, Idle 12W (Spec# SL9Z)
E6x20: Tcase Max 60c, Stepping B2, TDP 65W, Idle 12W
-Tcase/Tjunction-
--60--/--65--65-- Hot
--55--/--60--60-- Warm
--50--/--55--55-- Safe
--25--/--30--30-- Cool
Scale 6: Quad
QX9770: Tcase Max 56c, Stepping C1, TDP 136W, Idle 16W
QX6800: Tcase Max 55c, Stepping B3, TDP 130W, Idle 24W
-Tcase/Tjunction-
--55--/--60--60--60--60-- Hot
--50--/--55--55--55--55-- Warm
--45--/--50--50--50--50-- Safe
--25--/--30--30--30--30-- Cool
Section 7: Parameters
(A) NO temperatures can be less than Ambient.
(B) Standard Ambient temperature is specified at 22c.
(C) All temperatures increase as Ambient, clock and Vcore increase.
(D) Tcase to Tjunction Delta is 5c during Prime95 Small FFT's at stock settings.
(E) Tcase and Tjunction should not exceed Hot Scale during Prime95 Small FFT's.
(F) Vcore Load should not exceed 1.3625 volts on 45nm processors.
(G) Vcore Load should not exceed 1.5 volts on 65nm processors.
(H) Idle to Load Delta may exceed 25c when overclocked.
Section 8: Tools
Hardware:
A trusted indoor thermometer, analog or digital, will be needed to measure Ambient. The accuracy of this device and measurement will determine the overall accuracy of the Calibrations.
Software:
CPU-Z and SpeedFan will be used to Calibrate Tcase at Idle. Prime95 will be used in addition to CPU-Z and SpeedFan to Calibrate Tjunction at Load. SpeedFan will then be used to permanently monitor temperatures.
Use the following links to download and install these utilities:
CPU-Z 1.48: http://www.cpuid.com/cpuz.php
Prime95 25.6: http://files.extremeoverclocking.com/file.php?f=103
SpeedFan 4.35: http://www.almico.com/speedfan.php
Note 1: Prime95 - When run for the first time, it is necessary to click on Advanced, then click on Round off checking so that errors caused by instabilities will be flagged as they occur. Prime95 25.6 will automatically thread all Cores, and will expose insufficient CPU cooling and computer case cooling, or excessive Vcore and overclock. At no other time will a CPU be as heavily loaded, or display higher temperatures, even when OC'd during worst-case loads such as gaming or video editing. Prime95 can be used with SpeedFan to observe CPU temps, while stress testing for system stability. During single threaded gaming and applications, Core 0 typically carries heavier loads and higher temps than other Cores.
Note 2: SpeedFan - Very flexible and configurable, SpeedFan is the preferred temperature monitoring utility because Tcase and Tjunction can be Calibrated. SpeedFan detects and labels thermal sensors according to various motherboard, chipset and super I/O chip configurations, so the label for Tcase can be CPU, Temp 1, Temp 2, or Temp 3. Even if Tcase is labeled as CPU, it is still necessary to confirm the identity of Tcase prior to performing Calibrations.
Repeatedly start and stop Prime95 Small FFT's at 15 second intervals, while observing which SpeedFan temperature scales with an Idle to Load Delta similar to the Cores. This will identify the label corresponding to Tcase. Labels can later be renamed using the Configure button. See Section 11.
If a temperature shows a flame icon, this indicates alarm limits which require adjustment. Use the Configure button to set CPU and Core temp alarms to Warm Scale. If a temperature shows Aux 127, this is simply an unassigned input which can be disabled using the Configure button. See Section 11.
Section 9: Calibrations
Prerequisites:
(A) CPU cooler correctly installed.
(B) Print this Section to use for BIOS settings and Calibrations.
(C) Record or photo or Save Profile all BIOS settings for quick restore when Calibrations are complete.
(D) Test Setup: Standardized configuration for maximum cooling at Auto Vcore, Frequency and Multiplier.
Computer Case Covers = Removed
Computer Case Fans = Manual 100% RPM
CPU Fan = Manual 100% RPM
CPU Frequency = Auto
CPU Internal Thermal Control = Enabled
Enhanced C1 Control (C1E) = Enabled
Internet = Disconnected
Memory Frequency = Auto
PECI (If Equipped) = Enabled
Speedstep (EIST) = Enabled
Vcore = Auto
Vdimm = Auto
Windows Programs = Closed
Note: It is preferred that Calibrations are conducted as close to 22c Ambient as possible to allow for a normal temperature ceiling for Load testing, and to maintain environmental consistency for more uniform comparisons among C2Q / C2D variants and system platforms.
The following two part procedure is designed to achieve two objectives:
Provide minimum Ambient to Tcase Delta for accurate Tcase Idle Calibration.
Provide maximum Tcase to Tjunction Delta for accurate Tjunction Load Calibration.
Part 1: Calibration - Tcase Idle (Uses maximum cooling at minimum Vcore, Frequency and Multiplier)
Note 1: If BIOS does not respond properly to Auto Vcore, Frequency and Multiplier settings, then use an appropriate combination of manual settings to provide the following:
CPU Frequency = 1.6 Ghz
Vcore = 1.10
(A) Measure Ambient near the computer case air intake, clear of warm exhaust. A trusted indoor thermometer, analog or digital, will suffice. The accuracy of this device and measurement will determine the overall accuracy of the Calibrations.
(B) Boot into Windows. Close all programs, background processes, SETI, Folding and Tray software. Press Ctrl-Alt-Delete, click on Task Manager, then click on the Performance tab to confirm CPU Usage is less than 2%. Use the Applications and Processes tabs to close programs if necessary.
(C) Open CPU-Z and SpeedFan. Observe CPU-Z for Intel's Speedstep to decrease Core Voltage, Core Speed and Multiplier to minimum values. Observe SpeedFan, allow 10 minute at Idle to ensure that temperatures decrease to minimums, then record Tcase Idle.
(D) Tcase Idle = Ambient + Z.
Z compensates for Idle power dissipation and CPU cooler efficiency. Use the Scales in Section 6 to find "X" Idle power, use the links in Section 14 to find "Y" cooler efficiency, use the table and formula below to find "Z", then add Ambient to find Tcase Idle.
X = 2 . . . Idle power: 8W . . . . Y = 2 . . . . Cooler efficiency: high-end
X = 3 . . . Idle power: 12W . . . Y = 3 . . . . Cooler efficiency: high mid-range
X = 4 . . . Idle power: 16W . . . Y = 4 . . . . Cooler efficiency: mid-range
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 5 . . . . Cooler efficiency: low mid-range
X = 6 . . . Idle power: 24W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 7 . . . . Cooler efficiency: low-end
. . . . . . . . . . . . . . . . . . . . . . . . . Y = 11 . . . Cooler efficiency: Stock Intel
(X + Y) / 2 = Z
Z + Ambient = Tcase Idle.
Note 2: CPU and cooler combinations which are both lapped may subtract 1c.
Example 1: Duo
Idle power: E2160, Stepping M0, Idle 8W, so X = 2.
Cooler efficiency: high-end - Sunbeamtech Core Contact Freezer, so Y = 2.
(2 + 2) / 2 = 2, so Z = 2.
Ambient = 22c.
2 + 22 = 24, so Tcase Idle = 24c.
Example 2: Quad
Idle power: Q9550, Stepping E0, Idle 16W, so X = 4.
Cooler efficiency: mid-range - Arctic Cooling Freezer 7 Pro, so Y = 4.
(4 + 4) / 2 = 4, so Z = 4.
Ambient = 22c.
4 + 22 = 26, so Tcase Idle = 26c.
Example 3: Quad
Idle power: Q6600, Stepping B3, Idle 24W, so X = 6.
Cooler efficiency: Stock Intel, so Y = 11.
(6 + 11) / 2 = 8.5, rounded off to 9, so Z = 9.
Ambient = 22c.
9 + 22 = 31, so Tcase Idle = 31c.
(E) Configure Offset correction as shown in Section 11. Since the Tcase sensor was designed to be linear from Idle to Load, Tcase Load will also be accurate.
Part 2: Calibration - Tjunction Load (Uses maximum cooling at Stock Vcore, Frequency and Multiplier)
Note 1: If BIOS does not respond properly to Auto Vcore, Frequency and Multiplier settings, then use an appropriate combination of manual settings to provide the following:
CPU Frequency = Stock Ghz
Vcore = 1.25
(A) Start Prime95 Small FFT's. Observe CPU-Z for Intel's Speedstep to increase Core Voltage, Core Speed and Multiplier to Stock values. Observe SpeedFan. Heat saturation is typically reached within 7 to 8 minutes, so allow 10 minutes at Load to assure that temperatures increase to maximums, then record Tjunction for each Core.
(B) Tjunction Load = Tcase Load + 5c.
Example 1: Duo
Tcase Load = 45c
Tjunction Load = 50c
-Tcase/Tjunction-
--45--/--50--50--
Example 2: Quad
Tcase Load = 45c
Tjunction Load = 50c
-Tcase/Tjunction-
--45--/--50--50--50--50--
(C) Configure Offset corrections as shown in Section 11.
(D) Stop Prime95, then allow the system to Idle for 10 minutes. Tjunction Idle should be ~ 3c higher than Tcase.
Note 2: Tjunction sensors were designed to be linear at high temperatures for Throttle and Shutdown protection, so Idle could indicate too low on 65 nanometer variants, or too high on 45 nanometer variants, many of which have faulty sensors that won't Idle below certain temperatures. Sensors can be tested using Real Temp 2.7 - http://www.techpowerup.com/realtemp/
If Tjunction Idle is not ~ 3 higher than Tcase, then use Tcase Idle for accuracy.
(E) Repeat Item (A) and allow Prime95 to run past 10 minutes while reinstalling covers. If temperatures increase, then computer case cooling should be improved.
(F) Restore the system to original or custom BIOS settings and hardware / software preferences.
Section 10: Results and Variables
Prime95 Small FFT's should verify that Tjunction Load is Tcase + 5c. If temperatures do not meet the Parameters, then check the Test Setup and repeat Parts 1 and 2. Remember that Tcase and Tjunction tend to converge at Idle and diverge at Load due to Variables such as Vcore and CPU cooler efficiency. Low Vcore and clock may cause Tcase to Tjunction Delta to indicate less than 3c at Idle on an E2xxx, while a heavily overclocked Q6xxx with high Vcore may exceed Tcase to Tjunction Delta of 7c at Load.
If temperatures are allowed to increase beyond Hot Scale, then ~ 5c below Tjunction Max Throttling is activated. If Core temperatures increase further to Tjunction Max, then Shutdown occurs. Since Tcase Max will be exceeded before Tjunction Max is reached, Tcase Max is always the limiting thermal specification.
It is not recommended to continually operate processors, overclocked or stock, at Hot Scale for reasons of stability and longevity.
The following Examples each represent typical overclocked systems, which have moderately high Vcore settings, yet still maintain Safe temperatures at 100% Workload. Note that Tcase to Tjunction Delta shows 7c at Load due to high Vcore. This is normal and expected, since 5c was Calibrated using a Test Setup standardized for maximum cooling capacity at Stock Vcore, Frequency and Multiplier settings.
Example 1: Duo
Tcase = 29c Idle, 60c Load (SpeedFan: CPU or Temp x)
Tjunction = 32c Idle, 67c Load (SpeedFan: Core x)
Ambient = 22c
Chipset = P45
CPU = E8400
CPU Cooler= Arctic Cooling Freezer 7 Pro
Frequency = 4.0 Ghz
Load = Prime95 - Small FFT's - 10 minutes
Motherboard = Asus P5Q Deluxe
Stepping = C0
Vcore Load = 1.325
Example 2: Quad
Tcase = 31c Idle, 60c Load (SpeedFan: CPU or Temp x)
Tjunction = 34c Idle, 67c Load (SpeedFan: Core x)
Ambient = 22c
Chipset = P35
CPU = Q6600
CPU Cooler= Sunbeamtech Core Contact Freezer
Frequency = 3.6 Ghz
Load = Prime95 - Small FFT's - 10 minutes
Motherboard = Asus P5K Deluxe
Stepping = G0
Vcore Load = 1.45
Idle to Load Delta will vary among systems due to inconsistencies such as Ambient temp, Vcore, clock frequencies, sensor linearity, CPU cooling, heat spreader and heat sinc flatness, thermal compound, computer case cooling, graphics card(s) cooling, and software processes. Excessive background processes running simultaneously may not allow low Idle temps. Low Vcore and stock clock may result in low Idle to Load Delta. High Vcore and overclock may exceed 25c Idle to Load Delta, as shown above.
Erroneous BIOS Calibrations from motherboard manufacturers, Factory Calibrations from Intel, and popular temperature monitoring utilities often result in Tcase and Tjunction inaccuracies. Since Intel's Thermal Diode spec is +/-1c, temperatures can still be accurate when SpeedFan is properly Calibrated, which should indicate Core temperatures that are within a few degrees of Real Temp 2.7.
Section 11: Offsets
SpeedFan can be configured to correct for inaccurate Tcase (CPU or Temp x) and Tjunction (Core x).
(A) From the Readings tab, click on the Configure button, then click on the Advanced tab, and click on the Chip field, directly under the tabs.
(B) Next, go to SpeedFan's installation Program Group, and click on the Help and HOW-TO Icon. This help file can also be found by searching for the filename speedfan.chm.
(C) Under Contents, click on How to configure, then click on How to set Advanced Options. Read this section, including Other interesting options, with emphasis on Temperature x offset.
(D) If additional help is needed, click on the following link to SpeedFan's homepage, then click on the Support, Articles, Screenshots and F.A.Q. tabs: http://www.almico.com/speedfan.php
When CPU and Core Offsets have been completed, SpeedFan will be accurate. SpeedFan is also extremely useful for observing temperatures and Vcore using the Charts tab, while thermal benchmarking with Prime95 Small FFT's.
Tips:
(A) Tcase may be labeled as CPU, Temp 1, Temp 2 or Temp 3, but is most frequently labeled as Temp 2. Follow Section 8, Note 2 to correctly identify which label corresponds to Tcase.
(B) Tjunction is labeled Core 0, Core 1, etc.
(C) Graphics Processors are labeled Core.
(D) Graphics Cards which display a sensor labeled Ambient, must not be used for measuring room temperature.
(E) SpeedFan flame Icons are alarm limits which can be adjusted to Warm Scale using the Configure button.
(F) SpeedFan Aux 127 is an unassigned input which can be disabled using the Configure button.
(G) Core 0 typically carries heavier loads and higher temps during single threaded gaming and applications, so SpeedFan should be configured to "Show in Tray" Core 0.
Section 12: Overclocking
Intel's Thermal Design Power (TDP) spec can be exceeded by over 50% when CPU frequency is aggressively overclocked, and Vcore is increased to maintain stability. When the default Vcore spec (on the retail box) is increased by just 10%, it becomes difficult to maintain Safe Scale with high-end cooling. As Ambient temperature increases, Vcore and overclock may need to be decreased.
Every processor is unique in it's overclock potential, voltage tolerance, and thermal behavior. If the maximum stable overclock is known at 1.35 Vcore (65nm) or 1.225 Vcore (45nm), then ~ 300 Mhz of additional overclock remains until Safe Scale is exeeded due to increased Vcore. Each increase of 0.05 volts will typically allow a stable increase of ~ 100 Mhz, and will result in a corresponding increase in CPU and Core temperatures of 3 to 4c.
At 1.5 Vcore Max (65nm) or 1.3625 Vcore Max (45nm) with 100% Workload and 22c Ambient, highly effective CPU cooling and computer case cooling are required to maintain Safe Scale and stability. Ambient and Vcore are the most dominant Variables affecting temperatures.
For more Overclocking information, please refer to the following link: HOWTO: Overclock C2Q (Quads) and C2D (Duals) - A Guide v1.6.1 http://www.tomshardware.com/forum/ [...] uals-guide
Section 13: Heat Score
The following items will enable users to estimate cooling efficiency, identify problem areas, and visualize how environment and system configuration impacts real-world thermal performance. Graphics cards which recirculate heat are a major cause of high temps in gaming rigs, therefore, cards designed with Dual-Slot rear exhaust are preferred.
(A) Ambient:
3 = Over 24c
2 = 22c to 24c
1 = Under 22c
(B) CPU Cooler:
3 = Stock or low-end
2 = Mid-range
1 = High-end
(C) Computer Case Cooling:
3 = Needs improvement
2 = Fair
1 = Excellent
(D) Frequency:
3 = Heavy OC
2 = Moderate OC
1 = Stock or light OC
(E) Graphics Cooling:
3 = Recirculate - dual cards
2 = Recirculate - single card
1 = Rear exhaust - single card / SLI / CrossFire
(F) Hard Drives:
3 = 4 or More
2 = 2 or 3
1 = 1
(G) Vcore: 65nm processors
3 = Over 1.425
2 = 1.35 to 1.425
1 = Under 1.35
(OR)
(G) Vcore: 45nm processors
3 = Over 1.30
2 = 1.225 to 1.30
1 = Under 1.225
Total: (Example System)
(A) = 2
(B) = 2
(C) = 1
(D) = 3
(E) = 1
(F) = 2
(G) = 3
Heat Score = 14
Scale:
17 - 21 = Hot
12 - 16 = Warm
7 - 11 = Safe
I hope this helps to bring Core 2 Quad and Duo temperatures into perspective. Thank you
kinda shape wage neda... bt tikak vadi stock temp ekata nedayazir94 said:
wadida temp eka???????
ravixx11 said:FRNDS... mata podi help ekak oni...
oyala dannawada quad core cpu ekaka normaly tempareture eka ?
mage normally (without run any prog..) 60C~65C withara, smtimes 72katath wadi wenawa...
Q9300 - 2.5GHz
me tem .. eka wadida? nathnam normal da?
danna kenek innawa nam kiyannako... loku help ekak..
Mage machan core2duo eka thiyenne ekath 50 withara yanwa...so quad eka oyagana normal wenathi
bayak hithuna... aparaadene...sirajstc said:poddak hot tamai mcnganan ganna epa
ekai ahuwe...
ya ya baya wenna deyak na.. OC karane na ne ithin.. ehenam shapeyazir94 said:no idea machan..daththa use karanawa echcharai
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