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Visiontek Radeon HD 4870 Crash

Last response: in Graphics & Displays
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October 12, 2009 12:53:24 AM

I'm having a serius problem with my card. When trying to play or run any 3d app with mid to high requierments, my PC restarts itself.
I read the GPU temp with GPU-Z, and nothing goes beyond 60°C (with fan manually set to 70% with CCC)when it restarts.
I also tested CPU with Core2MaxPerf and prime95 for a long while and it run ok. But when I try to play MassEffect, Crysis, Prototype, or benchmark with 3DMark, the problem appears.
I didn't happend while playing some old games like Half-Life.
Tried with video drivers from 8.9 to 9.9, and with every motherboard BIOS version in ASUS website (the problem appeard a few weeks ago and I have been running the system for about a year now, with some unnecesary BIOS updates in the middle...)
I'm not overclocking now, never did it with this video card.

My system is:
PSU: Powercooler PS-850HE 850 WATTS
Motherboard: Asus P5E Deluxe
CPU: Intel Core2Duo E8400
RAM: 2x1Gb OCZ Reaper 1066
GPU: Visiontek Radeon HD 4870 512Mb
OS: Windows XP SP3
November 14, 2009 7:00:09 PM

What gives,
I have had the same build for 2 yrs and no problems at all.
I was running dual 1650pros in crossfire. The problem occured, only crashed while gaming.I installed a new operating system, new hard drive,
and new visiontek 4870. Same results,comp runs great until gaming. I have uninstalled and installed new drivers for everything. Updated everything tried the low clock settings using riva, nothing works.
Please Help me.
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Best solution

November 14, 2009 7:16:26 PM

Random reboots under heavy system load (GPU + CPU working hard) generally point to a Power Supply issue. Your PSU might be degraded, or faulty. The best first test would be to try another PSU.
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November 24, 2009 7:36:19 PM

It was the PSU :(  or at least that was one of the problems since I couldn't buy a new one or repair it yet.
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