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Odd 580 SLI Problem - Page 2

post #11 of 27
Thread Starter 
Quote:
Originally Posted by Defoler View Post
Another question.

Has this been happening ever since you got the second 580 and new PSU?

Have you ever tried that with your old 580 and PSU?
The problem did occur with my HX850 which has been nothing but solid since I bought it months and months ago. I don't have a lot of historical data on the 580's since I bought them both basically at the same time.
post #12 of 27
Quote:
Originally Posted by MNiceGuy View Post
The problem did occur with my HX850 which has been nothing but solid since I bought it months and months ago. I don't have a lot of historical data on the 580's since I bought them both basically at the same time.
Odd.

If I understand right, if you run the card very hot, shut down everything, flip the PSU switch off, flip it on a sec later, and start the system, it runs normally?

If so, its not the cards. I think its the PSU, that its not able to deliver the full power requirment for the card to spin its fan to full speed to lower the temps as the system boot up.

Can you give us the full layout of how you connect everything to the PSU?
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post #13 of 27
Quote:
Originally Posted by MNiceGuy View Post
1. Yes. I can flip the mains switch on the PSU I will get video signal on boot. Alternatively if I wait 60-90 seconds without flipping the mains I can get signal as well.

Everything seems to revolve around temperature.
I am not sure about the culprit being thermal related because you can flip the mains and get video signal. With this method, there is really little time (much shorter than 60-90 seconds) for anything to cool down.

Theory: I am wonder if it is possible that flipping the mains of your Corsair HX1000 resets some 'protection' inside and thus allows you to have immediate reboot with video signal? And the waiting of 60-90 seconds actually gives the necessary (cooling?) time to the PSU (vs the 2 cards) so that it resets that protection by itself.

Is the fan of the HX1000 spinning properly all the time?

Edit 1:
These are the built-in protections listed in Corsair site for the HX-1000
''Over Current/Voltage/Power Protection, Under Voltage Protection and Short Circuit Protection provide maximum component safety''.
And it does not seem to have anything about thermal protection.
Edited by windfire - 4/12/11 at 7:53am
post #14 of 27
Thread Starter 
Quote:
Originally Posted by windfire View Post
I am not sure about the culprit being thermal related because you can flip the mains and get video signal. With this method, there is really little time (much shorter than 60-90 seconds) for anything to cool down.

Theory: I am wonder if it is possible that flipping the mains of your Corsair HX1000 resets some 'protection' inside and thus allows you to have immediate reboot with video signal? And the waiting of 60-90 seconds actually gives the necessary (cooling?) time to the PSU (vs the 2 cards) so that it resets that protection by itself.

Is the fan of the HX1000 spinning properly all the time?

Edit 1:
These are the built-in protections listed in Corsair site for the HX-1000
''Over Current/Voltage/Power Protection, Under Voltage Protection and Short Circuit Protection provide maximum component safety''.
And it does not seem to have anything about thermal protection.
This occurs with the HX850 as well and does occur with only a single card. Specifically either single card.

Is there something on the 580 itself which would prevent it from outputting signal if beyond a certain temperature? Could it be (straws firmly grasped) the POST behavior of the motherboard?

I don't know if this matters or not but I am running dual-linked DVI to a 2560x1600 display.
Edited by MNiceGuy - 4/12/11 at 8:06am
post #15 of 27
Is there any chance you can test your system with a different GPU?

The cheapest you can find either from a friend or something lying around?
Something which requires very little power.
Just put it in, heat it up with furmark, and restart.
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post #16 of 27
Thread Starter 
Quote:
Originally Posted by Defoler View Post
Is there any chance you can test your system with a different GPU?

The cheapest you can find either from a friend or something lying around?
Something which requires very little power.
Just put it in, heat it up with furmark, and restart.
The only other GPU I have handy is a GTX 480 which is likely a step in the wrong direction...
post #17 of 27
When you use the ''flip the rocker switch of the HX1000'' method, how long does it stay off? Does it stay off long enough to drain the power from the motherboard (ie the LEDs of the mobo go off)? Or, you flip it on-off within a second or two?
post #18 of 27
Thread Starter 
Quote:
Originally Posted by windfire View Post
When you use the ''flip the rocker switch of the HX1000'' method, how long does it stay off? Does it stay off long enough to drain the power from the motherboard (ie the LEDs of the mobo go off)? Or, you flip it on-off within a second or two?
Flip off -> Press PWR to drain system power -> Flip on -> Success

Total time: 10-15 seconds
post #19 of 27
Quote:
Originally Posted by MNiceGuy View Post
The only other GPU I have handy is a GTX 480 which is likely a step in the wrong direction...
That is actually a step in the right direction.

If your system doesn't hang with the 480, but does with the 580, it will most likely mean that the cards you have are the problem.

Mainly because the 480 and the 580 both take the same power, and the 480 is even hotter.

So, try it.
Give the 480 a good run for its money, push the system, and than restart, see if its still going on.
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post #20 of 27
Thread Starter 
Concerning the mains switch flip not only would that reset system and PSU but also the GPU
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