Is my ram or motherboard causing all these problems?

[Redwingsguy]

A few months back I updated my ram, mobo, and cpu. My current setup is:

Asus a7n8x
AMD 2800
512mb + 256mb store bought 2700DDR
Antec 400watt ps
geforce 4 Ti 4600
Hercules gametheater xp


Ever since I updated my system, I've been having random reboots when I'm in windows. I updated the bios, which made the rebooting very infrequent for a while. But in the last few days it's picked up tremendously and I think I've got it nailed to 2 things. I tried memtester86x and it would reboot everytime I try to test the ram. So it could either be the ram, or I've heard the Bios rev2.0 would fix a lot of these problems. Is this just an unstable board or is it just picky with ram?

Added:
I did just start running into WD's click of death on my hdd partitioned for windows and installed programs. I can reset the problem away when it does happen, but I'm wondering if that has anything to do with the instability.

 

[mechBgon]

Don't try to use the BIOS for a revision-2 board unless your board has the revision-2 PCB. The revision number of your board is printed on it in small white lettering right after the A7N8X logo.

I'd suggest this for starters: kick your memory voltage up to 2.7 volts in the BIOS, and manually set the memory to run at 100% of the CPU FSB speed, if you haven't already.

 

[Redwingsguy]

the memory is running at 166mhz which is the fsb i believe.

I havent flashed the bios with rev2.0 bios, just 1004 for the older one. But I've heard that you can send it to update it to a rev2.0.

But I'll try bumping up the voltage to see if it increases stability

 

[Redwingsguy]

^