PC Peripherals Problem with second hand rig... :(

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ishanaditya

Apprentice
Hi,

I'm new to TE so I'm sorry if I've posted this at the wrong place... But I have a problem and I desperately need help. I recently got a second hand rig which stopped working very soon. I gave it to a repair shop and got the motherboard replaced. I wanted to buy a good one and had heard that Gigabyte makes reliable ones, so I got myself a ep45t-ud3lr. I ended up buying a Radeon HD 5770 1GB Sapphire card as well ;) . So here's the final config:

Core 2 Quad Q9550 2.83Ghz
Gigabyte ep45t-ud3lr
2GB Kingston 1066Mhz DDR3 SDRAM
RadeonHD 5770 1GB
Creative sound card in 1 PCI slot and
Intel NIC in another PCI slot
500GB WD Hard disk
running Windows XP SP2 with latest video and mobo drivers

My problem is that ever since I've got it back from the shop my system restarts whenever I play a heavy 3d game. It plays fine at everything maxxed out for 10 mins to sometimes 40 mins. But eventually it restarts.
I disabled 'Automatic Restart' from My Computer>Properties>Advanced>Startup and Recover Settings so that I could see the BSOD and the error. I even opened the Minidump logs with Windbg so see what caused the crashes.
Turns out it was a different file every time! It ranged from sptd.sys to tcpip.sys to winntos**.sys to several other unrelated files which leads me to believe the crashes are being caused by random hardware failures. My mobo and video card are new and (I presume) working fine.

Could it be that the PSU is underpowered? The brand is 'Enhance' and the wattage is not written anywhere... there's a voltage-ampere chart though...
Or is the RAM acting up? I read a bit online and learnt that bad RAM chips cause symptoms like the ones I'm seeing...

I would really appreciate if someone could shed any light on this... I can't wait to play Battlefield Bad Company 2 on my own machine! :(

[EDIT] I got a brand new Tagan 500W StoneRock Series PSU. The crashes seem to have reduced, but they're still happening when I play something heavy. I left it on last night with memtest86 on... This morning it shows: Wall Time: 8 hrs, Pass: 18, Errors: 0.
So it can't be the power supply and its not the RAM either. NOW WHAT!?!??? Please help guys! :(
 
I second the notion of an underpowered SMPS. Also just to be sure,run a few diagnostic tests on your RAM,narrow down the problem.
 
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