I thought this may probably be the case but just wanted to make sure. It does however make even less sense as to what has happened...
This thread is a follow on from a previous thread in GH
http://forums.overclockers.co.uk/showthread.php?t=18178055. Essentially a problem with another computer, it decided to stop working when restarting. Fans spinning up and drives working but no booting or bios screen. I swapped the RAM from a working PC onto that just to check if it was that (didn't work), however when I put the RAM I tried back into the second PC that that PC failed to start up and ended up with the same symptoms... I did wonder if the other MOBO destroyed the RAM in the second computer but new RAM in that computer hasn't helped either. This is why I now wondered if the RAM may have damaged the second Mobo.
As a side I've tried the PSUs of both affected PC's and both work fine on other boards.
Hardware specs for the first computer (originally damaged) are:
ABIT S775 microATX Mobo
2x1GB DDR2 Corsair Value select RAM
Intel 5300 CPU
Antec 300W PSU
Second PC
Gigabyte S775 microATX mobo
1x2GB DDR2 corsair value select RAM (this was what was placed in the first PC and subsequently placed back in the second)
1x2GB DDR2 Kingston RAM (subsequently bought as a replacement to the CVS)
Intel 5300 CPU
Tagan 480W PSU
Either way I still don't understand quite why the RAM has caused issues with the other board, the same issue that occured on the other computer. I'm now going to buy both a new Mobo and RAM and see if that sorts it, not putting any of the RAM currently tested in the old boards (including the newly bought RAM) into the new one or swapping components just to be on the safe side...