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Strange system shut down...

post #1 of 12
Thread Starter 
So this occurs only when playing crysis, benching (vantage) is fine. Even the crysis bench doesn't cause this. The system just shut's off. No BSOD, just click, blackness and the PSU fan/light stay on. I'm thinking that it's the PSU as it is a 750W, but really this should be enough, right? Any thoughts? Even reduced overclocks to almost stock have the same results.

Here is the one that I have.



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post #2 of 12
Are you running any other processes in the background while playing Crysis?
This happens to me when I'm GPU folding and playing a game or benchmarking.
    
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post #3 of 12
750W should be more than enough. I see 2 options here.. Or the PSU is dead for some reason or ur cpu is overheating and the safety switch kicks in and shuts down. Check that.
post #4 of 12
Thread Starter 
Quote:
Originally Posted by Webrider View Post
750W should be more than enough. I see 2 options here.. Or the PSU is dead for some reason or ur cpu is overheating and the safety switch kicks in and shuts down. Check that.
All backgorund processes are standard. Nothing silly or resource hogging. Otherwise this would happen when benching Vantage or other games.

This case has serious cooling, so it's not like it's got inadequit airflow. How do I check if the saftey switch kicks in?
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post #5 of 12
Thread Starter 
I turned all setting back to stock and things seemed to be fine. I don't get it? HAS to be power related.
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post #6 of 12
Thread Starter 
I thought that it might be RAM OC related. Even at stock RAM settings and loose timmings I reproduced it with a high CPU OC. Never had an issue with OC'ing that didn't have a BSOD.
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post #7 of 12
Overheating might be the responsible of it. Try with lower clocks and I'm pretty sure, that this power supply is more than enough.
post #8 of 12
Hmmm I would think 750watts isnt enough for SLI 280's...plus the overclocked Quadcore.


I would think he would need atleast a 1000watt.....Hes using a lot of watts right now, especially with the Q6600 at 3.7ghz
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post #9 of 12
It may be a total power issue. Try just running one videocard and over clocking. I was looking around on google and the min amp output for 1 280 is around 36 amps. You might not have enough power for two, but i dont know.
Edited by jacksknight - 12/20/08 at 12:42am
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post #10 of 12
Quote:
Originally Posted by CrazyNikel View Post
Hmmm I would think 750watts isnt enough for SLI 280's...plus the overclocked Quadcore.


I would think he would need atleast a 1000watt.....Hes using a lot of watts right now, especially with the Q6600 at 3.7ghz
I didn't notice that he's running two video cards of 280. I would say, that you need to buy a lot of stronger power supply for them, 1000W should be enough.
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