Hi guys,
I just put a 7990 in my computer for Skrypt mining at it keeps crashing (white screen, striped screen or others) at any intensity above 11 and I am pretty much clueless on what is causing this.
Has anyone had that problem before and maybe knows how to fix it? Any help is very much appreciated.
I am currently running this config:
{
"url" : "stratum+tcp://[pool]",
"user" : "[user]",
"pass" : "[userpass]",
"intensity" : "11",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "0",
"thread-concurrency" : "8192",
"shaders" : "2048",
"gpu-engine" : "0",
"gpu-fan" : "55-100,45-100",
"gpu-memclock" : "0",
"gpu-memdiff" : "0",
"gpu-powertune" : "-20",
"gpu-vddc" : "1.256,1.100",
"temp-cutoff" : "95",
"temp-overheat" : "88",
"temp-target" : "80",
"api-port" : "4028",
"auto-fan" : true,
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"hotplug" : "0",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "5",
"shares" : "0",
"no-submit-stale": true
}
I'm running 2x MSI 7990's at 1100 core, +20 power tune getting 3.06 MH/s (approx 760 per core
) Intensity 13.
However a friend of mine has the same cards, and he seems to have a glitch with his power supply as he can only run 3 cores at 13 and the 4th core has to run at 11.
So it may be worth checking if your power supply is man enough, or is faulty, My power supply is a EVGA 1000w, his was a coolermaster 1050w
Hope that helps
hello to everyone.
i want to build new rig with ati radeon HD7990.
if there can be more than 2 cards on main board , if they will work 100% efficiency?
if they can work on win8 as i have low knowlarge on linux?
Thanks
The biggest problem is cooling them, they run very hot, and most motherboards don't leave enough of an air gap for the amount of air these cards need to keep them cool, I've had to resort to using a air con unit
