[Bender]

if ur talking about a no display error. after reading all ur checking steps i say ur mother board is the faulty part. replace it or send it for warranty. u can't buy the brand of ur choice because recently DDR2 775 boards are rare to find. only used ones available in lot of shops. but before you buy a board take ur parts to a computer shop and let them check the fault first. good luck.

[gajeZn]

bump

[eyepea]

found another working 775 mobo.

fixed the cpu in prob mobo to this working mobo and it is working - so cpu good
but tried other cpu on problem mobo - not working.

Well I tried something else too.
Powered up both mobo without cpu in socket. cpu fan just connected to mobo.
I observed the same scenarios with the same steps on both good mobo and bad mobo.

Hmmmm so more or less in bad mobo, when a working cpu is present even, it is as if no cpu!

Yeah this can be due to bad contacts in cpu socket and also I was not successful in cleaning properly.

Anyway to differentiate between bad cleaning and bad mobo ?
( Well may be nothing much can be done but good to know :-) )

Can take to a repair shop, but now no warranty so shop guy would be more interested in selling a new mobo


thanks.

[rikazahamed]

same prob here

[eyepea]

Originally Posted by eyepea

Yeah this can be due to bad contacts in cpu socket and also I was not successful in cleaning properly.
Anyway to differentiate between bad cleaning and bad mobo ?

Any ideas on this please ?
If it may be a problem in the mobo circuitry, well that may be the end of the mobo.
But if it is a connection issue in the cpu socket, may be some more cleaning can be tried when I get the time.

So far didn't notice any damaged pin in the socket. Had a look with a magnifying glass and also checked whether anything noticeable in the way light is reflected off the socket. But me no expert on the matter. Hmmm must find a comp shop guy who is not interested in selling new mobo

What bothers me is that the good mobo also showed same symptoms without cpu in socket. So what I observed does not necessarily mean mobo bad without eliminating cpu socket matter