1of the gpu always DEAD overnight

[epicjim]

I noticed this happening 2 days in a row. I have 2x Gigabyte R9 280x rev 2. The card should be fine because when I restart computer it works normal again. My both cards are undervolted to 1.087v

My question why one of them dead and the other isnt. And the dead one is the 69degree one. The other runs 84 degree and does not die.


https://i.imgur.com/7Hx0nPU.jpg

my rig:

750w 80 plus corsair gold psu
2 x R9 280x undervolted 1.087  http://www.gigabyte.com/products/product-page.aspx?pid=4845#sp
Intel core 2 duo e4400 2.0ghz 4gbram.
MSI p35 Platinum motherboard
4gb geil ddr2 800mhz ram
120gb intel ssd drive
couple of 120mm, 140mm casefans

my cgminer config settings

"api-allow" : "W:127.0.0.1",
"api-listen" : true,
"api-mcast-port" : "4028",
"api-port" : "4028",
"expiry" : "120",
"hotplug" : "5",
"kernel-path" : "/usr/local/bin",
"log" : "5",
"queue" : "1",
"scan-time" : "5",
"scrypt" : true,
"shares" : "0",
"auto-fan" : true,
"device" : "0,1",
"gpu-threads" : "2",
"gpu-dyninterval" : "7",
"gpu-engine" : "1049-1049",
"gpu-fan" : "30-85",
"gpu-platform" : "0",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "-20,-20",
"gpu-vddc" : "0.000",
"intensity" : "13",
"temp-target" : "72",
"temp-overheat" : "85",
"temp-cutoff" : "90",
"temp-hysteresis" : "3",
"vectors" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"shaders" : "0",
"thread-concurrency" : "8921",
"remove-disabled" : true,
"no-pool-disable" : true
}


Please help, its so annoying.

[1715328113]

1715328113

[Lucky Cris]

Do you have enough power to your rig?

[epicjim]

Do you have enough power to your rig?

Sorry forgot to add my rig details, edited the OP now.

[Lethn]

If you could give the exact model of the graphics card that would help, but to me 750Watts running graphics two graphics card at full ( which is what any kind of crypto mining does ) is the bare minimum for your energy requirements, it may be shutting off one down so that you can keep the other running.

It would be baffling if you were running low end/mid range graphics cards but high end graphics cards would explain your problem, I have a high end graphics card ( ATI Radeon 6970 MSI Lightning ) running all night and periodically in the day and I have had no problems with a 700 odd watt power supply.

[epicjim]

If you could give the exact model of the graphics card that would help, but to me 750Watts running graphics two graphics card at full ( which is what any kind of crypto mining does ) is the bare minimum for your energy requirements, it may be shutting off one down so that you can keep the other running.

It would be baffling if you were running low end/mid range graphics cards but high end graphics cards would explain your problem, I have a high end graphics card ( ATI Radeon 6970 MSI Lightning ) running all night and periodically in the day and I have had no problems with a 700 odd watt power supply.

This is link to official gigabyte site of my card

http://www.gigabyte.com/products/product-page.aspx?pid=4845#sp

[bumpusee]

it probably got too hot the cut off, at time the auto tune does not work well

[Lucky Cris]

If you could give the exact model of the graphics card that would help, but to me 750Watts running graphics two graphics card at full ( which is what any kind of crypto mining does ) is the bare minimum for your energy requirements, it may be shutting off one down so that you can keep the other running.

Concur. Your cards are pulling approx 600w collectively, leaving the rest to power your mobo and fans, which isn't enough quite frankly.