PC randomly crashes, then restarts

neigenoire

Honorable
Feb 1, 2013
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0
10,630
I get random crashes almost every day randomly. The crash looks like this - the whole screen freezes and turns jittery and distorted then it turns black, i hear 3 long beeps, then the next one is cut off as the PC restarts itself. Other times it does not restart and the screen just stays black or distorted - no beeping. After it happens once or twice, it works perfectly for the rest of the day (used to at least, now it seems to crash all the time). I used to get BSODs too, but they are now gone since I updated the graphics drivers.

My specs:
OS: Win7 64bit
Mobo: ga-m52lt-d3 (have had it since forever)
6GB DDR3 RAM
Phenom II x4 965BE at stock clocks with cooler master TX3
Sapphire HD 7850 1GB @ stock clocks (the fan is making rattling noises. I have the computer slightly tilted and the noises are mostly inaudible. I've read it's an issue many people experience.)
Cooler Master Thunder 500W PSU (bought it a month ago)
An old Samsung 1TB hard drive

Temps are perfectly normal, the room temperature is quite low. I'm not a tech person and not sure what could be the culprit but I suspect the motherboard or the hard drive. Any help or tips would be appreciated.
 
Solution
its hard to tell it can be anything,i suggest get another motherboard or if you can borrow from friend,check parts one by one.may help try boot in a safe mode with network by hitting F8 key on keyboard when power up computer.
its hard to tell it can be anything,i suggest get another motherboard or if you can borrow from friend,check parts one by one.may help try boot in a safe mode with network by hitting F8 key on keyboard when power up computer.
 
Solution