Ram no longer recognised and is not faulty - must be the board?

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17 Oct 2006
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I am having a problem with one of my PC's which is clearly motherboard related.

I have tried everything I know and don't want to accept the obvious, so thought I would ask incase some one can offer a fresh perspective.

Motherboard: Gigabyte GA-SINXP1394, P4 2.8, 1.5gb PC 3200 DDR ram (2 x 512mb and 2 x 256mb - each pair matched and happily running in 128bit dual mode for the last three years). I have never attempted to overclock the board, memory or any other components.

A few days ago I installed a Zalamn CNPS9500LED CPU Cooler, which as it is socket 478 and in a Lian-Li case with removeable motherboard, was a simple job. I took all the usual precautions with regards to static, spills of thermal grease etc. and am if anything always over careful when doing anything near the motherboard. I also have a good idea of what I am doing and have built or upgraded 10 or so PC's in the last two years without incident, inc. 2 this week.

Anyway, everything installed nicely, booted up perfectly first time...except the ram in memory banks 1 and 2 were no longer recognised.

Checked all four sticks of ram and others that I have lying around, all are perfect but banks 1 and 2 will not work (whether to boot from alone or as part of several occupied banks).

Restored the Bios that I backed up before the upgrade (the board has dual bios anyway) and have used stock versions f2 through f6 from Gigabyte, but to no avail.

I suspect that those two sockets are damaged, yet I can't quite believe it as I was so careful and never went near them or any other area of the motherboard than the heatsink.

Can anyone offer anything else that I may try before replacing the board, which I am trying to avoid at the moment as I can't afford the downtime that it would take to restore the OS and all the DTP software, filters, post-script stuff etc. that we use in our day to day work.

Is there any software out there that analyzes a motherboard for dead memory banks and other areas of the board for funtionality?

If anyone can help, I would greatly appreciate it. :)
 
Does the cooler come with a backplate you fit to the back of the motherboard behind the cpu? If so, then it sounds like said backplate might be touching/shorting some connections on the back of the motherboard... just a guess though.
 
No mate it doesn't. It fits to the socket 478 easier than anything else, basically just two straight bars into the plastic housing and then screw the sink clip down, dead simple.
 
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