pp_od_clk_voltage testing on vegafe

[Soul_keeper]

if I can't lower state 7 clocks/voltages without raising 0 voltage, then it really defeats the purpose of trying to make the card run cooler/quieter.

[Soul_keeper]

I still can't complete a full game of dota2 without the system locking up at stock settings ... it's been over 1.5yrs now. I should have returned this card as soon as I got it. Lowering the wattage to 130W from 220 don't help ... The only thing that seems to help is underclocking the core below 1200 and voltage below 1v, but doing so increases the idle power usage by 13W. So I have to run the script everytime I boot and everytime I exit/enter a game ... what a headache

[Soul_keeper]

Ok, I figured out how to edit the pp_table file.
cat /sys/class/drm/card0/device/pp_od_clk_voltage
OD_SCLK:
0: 852Mhz 800mV
1: 877Mhz 825mV
2: 902Mhz 850mV
3: 952Mhz 865mV
4: 1052Mhz 870mV
5: 1127Mhz 875mV
6: 1202Mhz 880mV
7: 1227Mhz 885mV
OD_MCLK:
0: 167Mhz 800mV
1: 500Mhz 825mV
2: 800Mhz 850mV
3: 952Mhz 865mV
OD_RANGE:
SCLK: 852MHz 2400MHz
MCLK: 167MHz 1500MHz
VDDC: 800mV 1250mV


These settings are stable and relatively bearable from a noise perspective.
Also the 0.75v idle works after using the direct pp_table method.
It turns out that the hbm voltages are tied directly to P3 P2 P1 of the sclk, so raising them directly with pp_od_clk_voltage don't seem to do anything but print what you set.

cat /sys/class/drm/card0/device/pp_table | hexdump -ve '26/1 "%02x " "\n"' >hex1.txt
EDIT THE FILE
tr -d " \t" < /tmp/hex1.txt > /tmp/hex2.txt
tr -d " \n" < /tmp/hex2.txt > /tmp/hex3.txt
xxd -r -p /tmp/hex3.txt output.bin
cat output.bin > /sys/class/drm/card0/device/pp_table
cat /sys/class/drm/card0/device/pp_od_clk_voltage

keep output.bin around so you don't have to repeat all other steps