Had a pal of mine here yesterday asking if he could test his memory in my machine.
He has a Epox board with Via chipset a 8K9A2+ which has been working fine for over 12months. Which had 3 sticks of 512meg DDR
2 x 3200 DDR matched sticks 1X 2700 DDR
Anyway a couple of days ago he noticed that only 1 512meg stick was showing on the memory count. Apparently the 2 sticks of his 3200 memory appear not to be working. if he trys to boot with any 1 of those 2 sticks only inserted it gives a C1 memory error. He can boot as long as the one good stick is inserted, and of course Memtest throws up loads of errors when checking the 2 other sticks.
I tried his memory 1 stick at a time in my MSI Neo2 Platinum board and it gave a memory error on mine too and would not boot.
I find it very hard to believe that 2 sticks of memory would go down at the same time. The machine works fine with the surviving remaining stick of memory.
My only thought is that the power supply caused the problem but why is the other one okay, he has since changed the power supply just to be on the safe side.
What's your thoughts on this happening, personally I would have thought he had more chance of winning the lottery than this occurring, he is not a happy bunny!