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Heat causing freezing?

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  • Graphics Cards
  • Games
  • Heat
  • Graphics
Last response: in Graphics & Displays
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February 26, 2011 8:20:35 PM

I recently SLI'd two GTX 260's together. Everything is all fine and dandy, until I launch any game and play for about 10 minutes. Then it freezes 100% and I have to reboot. It doesn't seem to matter what game, It will freeze nonetheless. I've noticed the cards get really hot, but I'm not sure if that's the problem. And if it is, I'm not sure how I can solve it. I've got the latest drivers as well.

More about : heat causing freezing

a c 119 U Graphics card
February 26, 2011 8:38:23 PM

You should post all the specs for the system

PSU - need enough power
Case - need enough airflow, is there room for a side fan to cool the cards?
Motherboard - how close are the cards
CPU - want to make sure the extra heat is not getting to it(long shot)
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February 26, 2011 8:48:01 PM

I already made sure the PSU is enough, asked some others on this same site. It's a 700w. The case does have a big side fan but right now the side is completely off the case. The cards are at least 1.7inches apart. I'm fairly sure the cpu is fine. It's a Q9400 core 2 quad.
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a c 119 U Graphics card
February 26, 2011 9:06:02 PM

Have you checked the temperatures of the cards them selves. There is no chance a card has a loose wire stopping the fan is there?

You can try to test each card by it self to make sure they both work on there own to begin with.

With a side fan(and so much space between the cards), heat should not be an issue. In that case, the side on is going to run cooler then side off.
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a c 177 U Graphics card
February 26, 2011 9:22:57 PM

you say your PSU is 700 watt? what make and model? not all power supplies produce their rated power. such as this one > http://www.hardwaresecrets.com/article/Coolmax-CUL-750B...
Also get msi afterburner, do not overclock the cards with it but use it to monitor temps and crank up the fan speed, then you will know if it is a heat problem.
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a b U Graphics card
February 26, 2011 11:39:23 PM

Wattage is also not the only important rating. Even if the power supply can provide enough wattage...if it can't supply enough amperage, it will cause problems.
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February 27, 2011 7:49:03 AM

Amps is not the problem. Two SLI'd 260's needs 50 amps. Mine puts out at least 57 amps.
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a c 177 U Graphics card
February 27, 2011 8:47:07 AM

just tell us the make and model, like i pointed out, just because the label says it puts out 57A doesnt mean it really does. If you think its temps, get msi afterburner and log your temps. Do you have any case fans? You really need a large rear exhaust fan at least and an intake at the front.
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a c 119 U Graphics card
February 27, 2011 1:48:32 PM

Eri said:
Amps is not the problem. Two SLI'd 260's needs 50 amps. Mine puts out at least 57 amps.

Honesty, those cards combine can not take more then about 31 amps(at max load per Nvidia's specs, and no game will get them to the pint).

But as listed above some makers lie. or instead just load all the power on the 5 and 3.3 volt rails. You can have a 700 watt power supply that has 300 watts on its 12 volt lines and the rest on the 5 and 3.3 lines. This have seen many times in the past. It has become much less common, but it is good to rule it out. With moderns system relying on the 12 volt rail, it is by far the most important factor for pc power supplies now.

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February 27, 2011 7:03:48 PM

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