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.


http://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.