Hey Bro's and Girlies out there...first i dont know where to post this because its a "mining problem" with "altcoins" so i thought may this is the right forum for it....if not, pls forgive me and move it to the right subforum...
I have following problem with mining scrypcurrencys:
If i undervolt my GPU's with Vbios change from standard 1.200 to anything else (like 1.150, 1.100, or 1.180) i cant use CGMiner or SGMiner.
only 2 or 3 GPUs are working then, with 710 khs, the others are at zero.
If i use the normal VDDC, like 1.200V, and i change it per software with TRIXX or SGMiner, i got the same powerconsumption as before.
I have this setup:
AMD Sempron 3200
AMD Sabertooth with 4 GB Ram
5 GPUs alla Gigabyte R9 280x
Enermax Platimax PSU with 1500W
Win8 64bit
With 1000mhz for each GPU i get at normal VDDC 700 khs, but a power consumption like 1630 Watt. I undervolted the CPU too.
if i set the GPU's MHz to 1050 my Comsumption is rising like hell too 1675W and then i shutted it down, because i am afraid of it (only 1500W PSU, u know).
So, two big questions:
1.Why the minerprogramms are freezing if i use the GPUs with undervolted VBios?
2. If i try to undervolt per Software, why it doesnt work and i wont see any results?here is my
SGminer Conf:
"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "ckolivas",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "2048",
"gpu-engine" : "1020",
"gpu-fan" : "0-0",
"gpu-memclock" : "1500",
"gpu-memdiff" : "0",
"gpu-powertune" : "0",
"gpu-vddc" : "0",
"temp-cutoff" : "95",
"temp-overheat" : "92",
"temp-target" : "90",
"api-port" : "4028",
"expiry" : "1",
"gpu-dyninterval" : "7",
"gpu-threads" : "2",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"
}
may u can help me with this mysteriuos problem, i would be thanksfull.
good night
