Anyone else noticing cgminer not correctly controlling and/or reporting vddc correctly on 79xx cards?
Example on 7950:
Afterburner - Set GPU to 1100core/1600mem @1100mV
CGMiner -- using conf file with GPU set to 1100core/1600mem @1100mV
...
"thread-concurrency" : "24000,24000,24000,24000",
"shaders" : "0,0,0,0",
"gpu-engine" : "850-1100,850-1100,850-1100,850-1100",
"gpu-fan" : "0-100,0-100,0-100,0-100",
"gpu-memclock" : "1600,1600,1600,1600",
"gpu-memdiff" : "0,0,0,0",
"gpu-powertune" : "20,20,20,20",
"gpu-vddc" : "1.100,1.100,1.100,1.100",
...
Start CGMiner, and it reports 1.250V under GPU Management:
GPU 0: 683.0 / 682.7 Kh/s | A:165 R:3 HW:0 U:2.62/m I:20
67.0 C F: 100% (4416 RPM) E: 1100 MHz M: 1600 Mhz V: 1.250V A: 99% P: 20%
Last initialised: [2013-04-07 01:28:34]
Intensity: 20
Thread 0: 679.2 Kh/s Enabled ALIVE
GPU 1: 678.7 / 671.3 Kh/s | A:165 R:1 HW:0 U:2.62/m I:20
58.0 C F: 100% (3983 RPM) E: 1100 MHz M: 1600 Mhz V: 1.250V A: 99% P: 20%
Last initialised: [2013-04-07 01:28:34]
Intensity: 20
Thread 1: 675.6 Kh/s Enabled ALIVE
GPU 2: 661.7 / 656.1 Kh/s | A:190 R:2 HW:0 U:3.02/m I:20
58.0 C F: 100% (4025 RPM) E: 1100 MHz M: 1600 Mhz V: 1.250V A: 99% P: 20%
Last initialised: [2013-04-07 01:28:34]
Intensity: 20
Thread 2: 660.1 Kh/s Enabled ALIVE
GPU 3: 671.6 / 671.1 Kh/s | A:172 R:1 HW:0 U:2.73/m I:20
55.0 C F: 100% (4358 RPM) E: 1100 MHz M: 1600 Mhz V: 1.250V A: 99% P: 20%
Last initialised: [2013-04-07 01:28:34]
Intensity: 20
Thread 3: 667.7 Kh/s Enabled ALIVE
[E]nable [D]isable [I]ntensity [R]estart GPU [C]hange settings
Or press any other key to continue
Afterburner and trixx report that mV is set to 1100. GPUz never shows it above 1.080v. And setting it to 1.250 in afterburner (shows 1.250 in afterburner, trixx, and GPUz shows 1.180'ish under load). There's also a HUGE difference when measured at the wall... so I'm convinced that it's cgminer that's not correctly reporting the voltage..
I'm on the latest beta drivers currently (13.3B3), but have tried stable (13.1), same issue.
I'm mining altcoin, but I'd be surprised if that was related (??).. ?
If there's any additional info I can provide, let me know.
Edit (more detail):
On Win7x64, using cgminer-2.11.4-windows from the apps/cgminer on github. (Same issue on 2.11.3).
Confirmed with one other with 7950s, so it isn't just me.