Quote from: tytanick on June 18, 2017, 11:53:03 AM

Quote from: keepitsane on June 18, 2017, 02:48:06 AM

Hey thanks for this amazing piece of software. I have just one issue I made all the changes you suggest in the bios however only 6 of my 7 gpus are showing up, any advice?

Meaby your motherboard doesnt support 7 gpus ?
If motherboard has 7 slots it doenst mean it will support 7 gpus Wink

Quote from: BrokenMiner on June 18, 2017, 03:32:17 AM

Is there a way to tell which GPU is in which slot? For instance, lets say I have a 5 card rig and GPU 3 is having issues. If I want to physically pull GPU 3 and try it in another rig, how do I know which card is GPU 3?

In most cases (in my envoroment) it is like that: But in other enviroments i cant tell if this will also be like that !
https://tytanick.tinytake.com/media/56742b?filename=1497785983889_18-06-2017-01-39-42.png&&type=attachment&&&_felix_session_id=578d8d28b132825a5d825ecd782473d2&salt=MTcwNDU2N181NjY1ODM1

Quote from: un4given on June 18, 2017, 08:14:32 AM

hello lads. searched through the thread, but couldn't find an answer. i started using smOS recently and rigs are just doing fine. the only thing i do not like is the consumtpion. f.e. on RX 470 rigs. Sad

6x RX 470 with custom BIOS were using in Win 10 with core 1150/memory 1950 like 860 watts from the wall

with smOS and same settings and PowerStage 1 the rig uses like 960-980 watt from the wall. I started with Powerstage 4 and went to 1 but the consumption didn't change a bit. Yes, i restarted the rig each time.
any ideas how one could further improve the consumption?

thx in advance

This is Linux OS. And linux Operating system is totally different from windows.
Basically it is much more stable and much more "out of box" than windows but we dont have undervolting tools.
There are some private tools (which i dont have) but i guess people wont release those.
As now only solution is to make custom bios with added offset voltage.
Then it is working, my rigs with 6x470 are taking about 750-850 watts from wall depending on oc settings.
I know a guy which is adding voltage offset to bioses, if you want contact him let me know by email: admin@simplemining.net
But i guess the prices are from 0.1-0.2 btc per one gpu model bios.

Quote from: kaN5300 on June 18, 2017, 08:41:47 AM

Not a SMOS question, but linux related. I am getting 4 values for gpu fans (4 gpu rig) in dashboard: 33,28,28,40. Made some basic bash script to send fan values to my monitoring box. In is based on /sys/class/hwmon/hwmon?/fan1_input values. The issue is that one of gpu shows some crazy shit in /sys:

Code:

root@simpleminer:~# cat /sys/class/hwmon/hwmon3/fan1_input
4134

while dashboard/claymore show less then 50% for each GPU unit... lmsensors package shows the same. It is using /sys/class kernel subsystem.

GPUs are Sapphire RX 470 Nitro+ with modded bios.

Is there any way to get correct rpm values in shell?

Here you will get a list of fan speed devices in linux:

root@simpleminer:~/utils# ls -1 /sys/class/drm/card*/device/hwmon/hwmon*/pwm1
/sys/class/drm/card1/device/hwmon/hwmon0/pwm1
/sys/class/drm/card2/device/hwmon/hwmon1/pwm1
/sys/class/drm/card3/device/hwmon/hwmon2/pwm1
/sys/class/drm/card4/device/hwmon/hwmon3/pwm1
/sys/class/drm/card5/device/hwmon/hwmon4/pwm1
/sys/class/drm/card6/device/hwmon/hwmon5/pwm1
root@simpleminer:~/utils# cat /sys/class/drm/card1/device/hwmon/hwmon0/pwm1
153

If you want to convert this value to % then you need to make simple calculation 153/254 which is 0.6
Multiply that by 100 and you have 60% fan speed.
So the max speed for gpus is 254 and you can inset that speed to the system by using command:
as root: echo "254" > /sys/class/drm/card1/device/hwmon/hwmon0/pwm1
But renember that my script will overwrite fan speed in system.
(acculaty it could be 254, 255 or 256, i dont renember what was top value Tongue

The only reason why I ask about the GPU is because this motherboard has been tested for 9 gpus it is the Asus Prime Z270-A and I had it working on another linux distro, but really liked what you were doing here so I decided to switch. Any other possible issues you can think of?