Vista crashing at random

Hello. This is my first post here.

I have built a new system that has a ASUS P5Q-E motherboard, Intel Core 2 Duo E8400, Gigabyte Radeon HD 4870, 2 GB DDR2-800.

I have Windows Vista Business 32-bit installed with SP1.

The problem is that the system hangs and freezes at random. I tried running memtest and it passed all the tests, I ran Prime95 for hours and it had no problems and it doesn't hang when I am gaming. I tried Crysis and Lost Planet. In Lost Planet, it crashed in the main menu when I was exiting the game!

The temperatures for the CPU is 65C (at full load in Prime95), 70C for the GPU (I did the fan fix). Nothing is overclocked.

I took out the processor and applied new thermal paste after cleaning the old one.

I am really at a loss here.

I need help!

Note: If this was posted in the wrong section, don't be mad at me, I am new here!
2 answers Last reply
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  1. Could be dirty power if the pc is plugged in a wall outlet directly. At least, plug it in a surge suppressor.

    65C is kinda high for Wolfie. Is it the stock cooler? Mine idles at 21C & loads at 45C. Never got past 51C in Orthos x2. Granted, I use TEC, as opposed to air cooling.
  2. Go into your bios setup and check that the ram is running at mfg spec voltage. Insufficient voltage can cause instability in windows even when you pass memtest. We see this a lot lately.

    Your temps sound OK to me for air cooling.

    Is it just games that are crashing?

    Be sure you have latest drivers for video and sound cards.
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