Originally Posted by Mister Floppy
Well... unfortunately, the ROM provided by mirzet1976 from above - which is changing the "voltage" value for DPM0 to 968 (stock value was 900) and the MEM clock 2 to 1250Mhz instead of 1500Mhz - is still causing black screens in 2D mode...
So I reverted flashing the stock ROM and using my "MSI afterburner" hacks:When I'm using "MSI Afterburner" with settings "Power Limit (%) to -50" and "Core Voltage +125 mv", the GPU is working solid as a rock, no black screens in 2D mode at all; the "VDDC" value I read with GPU-Z is 1.016 V in idle state.
In case the information from AIDA64 is useful, here it is for the stock ROM:
DPM0: GPUClock = 300 MHz, VID = 0.90000 V
DPM1: GPUClock = 543 MHz, VID = 0.96800 V
DPM2: GPUClock = 780 MHz, VID = 1.00600 V
DPM3: GPUClock = 900 MHz, VID = 1.10600 V
DPM4: GPUClock = 950 MHz, VID = 1.15900 V
DPM5: GPUClock = 995 MHz, VID = 1.21200 V
DPM6: GPUClock = 1030 MHz, VID = 1.24300 V
DPM7: GPUClock = 1070 MHz, VID = 1.27500 V
I still would appreciate if someone with experience in BIOS modification could "translate" my "MSI afterburner" settings from above "from software to hardware" and provide a file soon - thank you in advance!
feel dumb to just apply a 125mv offset... i don't think your card needs 1.025v to idle at 300mhz. The black screen is probably caused by another DPM. Or a combination with the memclock jumping to 1250-1500mhz. Try using Wattman and set all DPMs (1 to 7) to something starting from 1.2v(DPM1) and ending with 1.275v in DPM7( to find out what is exactly triggering the black screen). All my 40nm(28-14nm too) cards idle around 750-775mv. 900mv for a 28nm chip is plenty.
Modded you bios. VDDCI +25mv(Should help the IMC/Memory Controller), MemClock lowered to 1250Mhz
Idle Voltage still @900mv, all other DPMs now look like this:
DPM0: GPUClock = 300 MHz, VID = 0.90000 V (+0mv)
DPM1: GPUClock = 543 MHz, VID = 1.10000 V (+132mv)
DPM2: GPUClock = 780 MHz, VID = 1.12500 V (+119mv)
DPM3: GPUClock = 900 MHz, VID = 1.15000 V (+44mv)
DPM4: GPUClock = 950 MHz, VID = 1.20000 V (+41mv)
DPM5: GPUClock = 995 MHz, VID = 1.23700 V (+25mv)
DPM6: GPUClock = 1030 MHz, VID = 1.25000 V (+7mv)
DPM7: GPUClock = 1070 MHz, VID = 1.27500 V (+0mv)