RX470 windows:120watt - linux:150 watt ???

[tytanick]

Hi guys.

As you know, in linux we cant modify powertune, core, memory and volts.
Thats why i am setting all in Polaris Bios editor.

Anyway strange thing.

In windows card is doing 24MH and takes 120 watt from wall
while booting the same rig in linux takes 150 watt from wall and motre less the same speed (slightly lower)

What is that ? Is windows using some extra options or wattman is doing something while in linux its not  ?

Here are my settings:

Code:

EthDcrMiner64.exe -epool eu1.ethpool.org:3333 -ewal 0xD69af2A796A737A103F12d2f0BCC563a13900E6F -epsw x 

 

[tytanick]

with default kernel 4.4 its the same.

i am using bios with 30MH and 100 wattage while in linux :

it is doing 27MH/ and taking 155watts

Here is photo of some sys info, as you see, clocks are ok i guess, but i think that undervolting is not working.

https://tytanick-gmail.tinytake.com/sf/OTcyMzk5XzQwNTkxMDY

[tytanick]

hmm, and how about this ?
is this signature check problem

root@simpleminer:~# dmesg | grep amd
[    0.089480] amd_nb: Cannot enumerate AMD northbridges
[    0.718488] amdgpu: module verification failed: signature and/or required key missing - tainting kernel
[    0.721907] [drm] amdgpu kernel modesetting enabled.
[    0.726883] fb: switching to amdgpudrmfb from VESA VGA
[    0.727399] amdgpu 0000:01:00.0: Invalid ROM contents
[    0.727476] amdgpu 0000:01:00.0: VRAM: 4096M 0x0000000000000000 - 0x00000000FFFFFFFF (4096M used)
[    0.727478] amdgpu 0000:01:00.0: GTT: 4096M 0x0000000100000000 - 0x00000001FFFFFFFF
[    0.727550] [drm] amdgpu: 4096M of VRAM memory ready
[    0.727551] [drm] amdgpu: 4096M of GTT memory ready.
[    0.728746] amdgpu 0000:01:00.0: amdgpu: using MSI.
[    0.728784] [drm] amdgpu: irq initialized.
[    0.728920] amdgpu: powerplay initialized
[    0.729157] amdgpu 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000100000008, cpu addr 0xffff880210a50008
[    0.729188] amdgpu 0000:01:00.0: fence driver on ring 1 use gpu addr 0x000000010000001c, cpu addr 0xffff880210a5001c
[    0.729211] amdgpu 0000:01:00.0: fence driver on ring 2 use gpu addr 0x0000000100000030, cpu addr 0xffff880210a50030
[    0.729232] amdgpu 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000100000044, cpu addr 0xffff880210a50044
[    0.729252] amdgpu 0000:01:00.0: fence driver on ring 4 use gpu addr 0x0000000100000058, cpu addr 0xffff880210a50058
[    0.729271] amdgpu 0000:01:00.0: fence driver on ring 5 use gpu addr 0x000000010000006c, cpu addr 0xffff880210a5006c
[    0.729293] amdgpu 0000:01:00.0: fence driver on ring 6 use gpu addr 0x0000000100000080, cpu addr 0xffff880210a50080
[    0.729313] amdgpu 0000:01:00.0: fence driver on ring 7 use gpu addr 0x0000000100000094, cpu addr 0xffff880210a50094
[    0.729329] amdgpu 0000:01:00.0: fence driver on ring 8 use gpu addr 0x00000001000000a8, cpu addr 0xffff880210a500a8
[    0.729378] amdgpu 0000:01:00.0: fence driver on ring 9 use gpu addr 0x00000001000000bc, cpu addr 0xffff880210a500bc
[    0.729397] amdgpu 0000:01:00.0: fence driver on ring 10 use gpu addr 0x00000001000000d0, cpu addr 0xffff880210a500d0
[    0.729768] amdgpu 0000:01:00.0: fence driver on ring 11 use gpu addr 0x000000000089c420, cpu addr 0xffffc90001a5a420
[    0.729876] amdgpu 0000:01:00.0: fence driver on ring 12 use gpu addr 0x00000001000000f8, cpu addr 0xffff880210a500f8
[    0.729897] amdgpu 0000:01:00.0: fence driver on ring 13 use gpu addr 0x000000010000010c, cpu addr 0xffff880210a5010c
[    0.976249] fbcon: amdgpudrmfb (fb0) is primary device
[    0.976324] amdgpu 0000:01:00.0: fb0: amdgpudrmfb frame buffer device
[    0.984715] [drm] Initialized amdgpu 3.2.0 20150101 for 0000:01:00.0 on minor 0

[tytanick]

ok the problem is that linux doesnt respect memory,core and voltage values from bios.
It overrides by his own.
So we need to make tool for overclocking and undervolting to get the same results as in windows.

[h311m4n]

Hi guys.

As you know, in linux we cant modify powertune, core, memory and volts.
Thats why i am setting all in Polaris Bios editor.

Anyway strange thing.

In windows card is doing 24MH and takes 120 watt from wall
while booting the same rig in linux takes 150 watt from wall and motre less the same speed (slightly lower)

What is that ? Is windows using some extra options or wattman is doing something while in linux its not  ?

Here are my settings:

Code:

EthDcrMiner64.exe -epool eu1.ethpool.org:3333 -ewal 0xD69af2A796A737A103F12d2f0BCC563a13900E6F -epsw x 

 
https://tytanick-gmail.tinytake.com/sf/OTcwMjE3XzQwNTIxODQ

Small correction: https://ottrbutt.com/tmp/wolfamdctrl-priv.png

Wolf0, is wolfmemctrl available for download? Your text says a "tool from the private version of wolfamdctrl"?...