Crossfire rig way to hot - page 2. | Bitcointalksearch.org

#Darren

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Quote from: Damnsammit on July 10, 2013, 12:01:00 PM

Wait... your PC is shutting down because of the heat? How hot does it get before it shuts down?

I did some test runs on my PC to see how hot I could get my 5850 before it would get "SICK" in CGMiner, and it seems like I can push it to about 95ºC before it turns off.... however, my PC never shuts down.

Oh... lol... turn crossfire off! Hope that helps. You don't want crossfire on if you are mining!

My friend set my pc up, and he put crossfire on it, but the cards run individually when mining. Should I still remove it?

Damnsammit

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Quote from: clogic555 on July 10, 2013, 12:12:36 PM

When GPU hits like 86-88 PC just shuts down, not sure if that is something to do with windows or CGminer or what.

Turned off crossfire, seems to be a little better, temp on XFX card still high around 78c 100% fan @ intensity 12. How come you want crossfire off when mining?

and got a nice cool 66c on other card with intensity 14. Seems really strange to me.

Would you recommend I sell the XFX to get another brand with a better stock cooler?

Not sure what is going on with your PC shutting down. My cards will overheat sometimes but then CGWatcher just turns the intensity down and it recovers. The only problem I ever had with mining and my PC shutting down was when I was trying to use a 630W PSU. Once I upgraded to the 850W everything was fine.

Crossfire does not give any benefits to mining, so there is no reason for it to be on, and most see improved performance with it off...

Not sure what is going on with your rig though, mate. The PC shouldn't be shutting down at those temps... most cards run fine at 85-90ºC it is just not recommended to mine 24/7 at those temps unless you are like me and trying to blow up a card lol

You could try another brand, but you might not have any better results. Try sticking a box fan right by your rig and see if that helps keep the temp down.

clogic555

newbie

Activity: 15

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Quote from: Damnsammit on July 10, 2013, 12:01:00 PM

Wait... your PC is shutting down because of the heat? How hot does it get before it shuts down?

I did some test runs on my PC to see how hot I could get my 5850 before it would get "SICK" in CGMiner, and it seems like I can push it to about 95ºC before it turns off.... however, my PC never shuts down.

Oh... lol... turn crossfire off! Hope that helps. You don't want crossfire on if you are mining!

When GPU hits like 86-88 PC just shuts down, not sure if that is something to do with windows or CGminer or what.

Turned off crossfire, seems to be a little better, temp on XFX card still high around 78c 100% fan @ intensity 12. How come you want crossfire off when mining?

and got a nice cool 66c on other card with intensity 14. Seems really strange to me.

Would you recommend I sell the XFX to get another brand with a better stock cooler?

Update: managed to get 73c @ I = 15 on sapphire and 75c on XFX card with I = 10 but the XFX card is only pulling 52kh/s lol

is there any point in having that card in there? must be at least 170 watts at load.

Damnsammit

sr. member

Activity: 406

Merit: 250

Wait... your PC is shutting down because of the heat? How hot does it get before it shuts down?

I did some test runs on my PC to see how hot I could get my 5850 before it would get "SICK" in CGMiner, and it seems like I can push it to about 95ºC before it turns off.... however, my PC never shuts down.

Oh... lol... turn crossfire off! Hope that helps. You don't want crossfire on if you are mining!

clogic555

newbie

Activity: 15

Merit: 0

Quote from: Damnsammit on July 10, 2013, 11:44:00 AM

Wowzah! That sounds like something is wrong. I'm mining with a 6850 and a 5850 and I get 650-750kh/s

Where are you located? I'm in Texas and it's hot as hell over here. I've been trying to burn out my 5850 so I can use it as an excuse to get a new card, but it's been running like a champ between 85-90ºC.

If you can stand the noise, you might try to open the case and let the cards breathe and see if that helps control the temps. Or see if pushing the fan to 100% helps.

The only other suggestion would be to get a new motherboard that has more space between the slots. Also, you could get some pcie risers and move the cards farther away from each other. I want to build a custom case but my wife won't let me... lol

Good luck!

Thanks for quick reply mate, I'm in London and it's not too hot. My room is probs around 23-24c. Can't get more than 500kh/s without my PC shutting down because of heat.
If I had the money I would buy a aftermarket cooler for the XFX card, the stock cooler is junk, at idle with crossfire its 59c!. Do you think it would be worth selling the XFX card and using the sapphire for now and buying a different brand like Giga or something?

Already got the side of my case off and a small exhaust fan right by GFX cards.

No point getting new mobo, got the best LGA 775 you can get the ASUS p5q deluxe.

Damnsammit

sr. member

Activity: 406

Merit: 250

Wowzah! That sounds like something is wrong. I'm mining with a 6850 and a 5850 and I get 650-750kh/s

Where are you located? I'm in Texas and it's hot as hell over here. I've been trying to burn out my 5850 so I can use it as an excuse to get a new card, but it's been running like a champ between 85-90ºC.

If you can stand the noise, you might try to open the case and let the cards breathe and see if that helps control the temps. Or see if pushing the fan to 100% helps.

The only other suggestion would be to get a new motherboard that has more space between the slots. Also, you could get some pcie risers and move the cards farther away from each other. I want to build a custom case but my wife won't let me... lol

Good luck!

Quote from: clogic555 on July 10, 2013, 11:33:28 AM

Basically I brought two 7950's second hand. One XFX DD edition and the other a sapphire flex OC edition. Managed to get both cards mining with decent rates
but the XFX card's temps go through the roof, cant mine without it going 85c at around 75-80% fan, the sapphire stays at a cool 70c.

With the XFX card alone I could get 420kh/s with decent temps around 77c and now I have to lower the intensity (using CGminer) so much that the card is only pulling 200kh/s because of the heat.

Basically would it be worth me mining with just one card?, might be able to get the sapphire to 500kh/s because it stays cool. Is there no point in having second card if its pulling at least 150 watts of power for 200kh/s?

No really sure where to go, I seem to be getting only 600kh/s with both cards but the XFX card runs way too hot and shuts down my computer.

When I try and put the sapphire card on top my computer acts as if there are no drivers.

Anybody got any suggestions? Thanks in advance for any advice.

clogic555

newbie

Activity: 15

Merit: 0

Basically I brought two 7950's second hand. One XFX DD edition and the other a sapphire flex OC edition. Managed to get both cards mining with decent rates
but the XFX card's temps go through the roof, cant mine without it going 85c at around 75-80% fan, the sapphire stays at a cool 70c.

With the XFX card alone I could get 420kh/s with decent temps around 77c and now I have to lower the intensity (using CGminer) so much that the card is only pulling 130kh/s because of the heat.

Basically would it be worth me mining with just one card?, might be able to get the sapphire to 500kh/s because it stays cool. Is there no point in having second card if its pulling at least 150 watts of power for 130kh/s?

No really sure where to go, I seem to be getting only 600kh/s with both cards but the XFX card runs way too hot and shuts down my computer.

When I try and put the sapphire card on top my computer acts as if there are no drivers.

Anybody got any suggestions? Thanks in advance for any advice.

Topic: Crossfire rig way to hot - page 2. (Read 1374 times)