Black screen, then computer reboots

Expo86

Honorable
Jul 10, 2013
7
0
10,510
So I recently returned from a fairly long business trip (3 months), and I came back and my computer has started to have errors.

When I'm playing a game (FM2013, Borderlands 2), every so often my computer screen turns black and my computer reboots.

I've googled some solutions. First I cleaned out the inside of the computer of dust, I've updated my video card drivers. I've also monitored my hardware temperature with CPUID and found that the temperature of my video card stays around 55-70 with the highest peak of 80. I've also run memtest86 for about 24 hours, and encountered no errors. I've also tried using driver fusion and reinstalling AMD beta and cleaning my registry with ccleaner. And my my cpu temps (according to CPUID) range from a min of ~45C (113F) to about ~65C (149F).

My specs are:
Windows 7 x64
AMD Athlon(tm) II X2 255 Processor, 3100 Mhz
ASUSTek M4A78LT-M-ME
Radeon HD5770
OCZ Gamestream 700w

The only solutions listed that I haven't tried are updating my bios (not entirely sure how to do this, and some sites said I shouldn't update this unless i absolutely have to?), and a full reinstall of windows.

Any help on the issue would be appreciated! Thanks in advance! I'm not the most tech-savvy individual so if any solutions could be in the simplest terms that be awesome as well :)
 
Solution
An issue like this is usually attributed to RAM failure.
How much RAM do you have in the machine?
I would try to test out each RAM stick at a time and see if one is obviously failing you.

thicks083

Honorable
Jul 21, 2013
90
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10,660
An issue like this is usually attributed to RAM failure.
How much RAM do you have in the machine?
I would try to test out each RAM stick at a time and see if one is obviously failing you.
 
Solution

Expo86

Honorable
Jul 10, 2013
7
0
10,510


I have 4 GB of ram. I thought running memtest86 was to test my ram? I'll give testing it out a shot as well though, thanks for the reply!