I give up on trying to fix this issue on my own. I'm turning to the community for help.
Here's the deal.
HiveOS running Phoenixminer 5.6d with 6 RX 5700XT Sapphire Pulse cards.
They're running really hot! They all have the exact same memory type (Micron) and are all flashed with the exact same bios.
My tuning commands are simply: -tt 90 -fanmin 95
My clocks are as follows: (these seem to be the most stable and optimal during the Spring/Summer months)
FAN 99
CORE 1400
VDD 800
MEM 910
MVDD 1300
VDDCI 800
Now some cards are running at 57MH/s. That's fine. That's what I want... at minimum. Those temperatures are 68 Core and 102 Memory.
But others are 50MH/s and temperatures are 74 Core and 106 Memory. So I'm chalking it up to thermal throttling.
Okay. So let's boost the fan speeds... but the fans are already set to 99%. But HiveOS is telling me that the fans are only running at speeds between 81% - 88%. No where near the 99% that I've set the command (-tt 90 -fanmin 95) to.
Where did I screw up?
Drivers 20.40
Kernel 5.4.80
OS Ver 0.6-203@210519
You're really pushing the limits of those 5700 xts. I have 6 5700 xt red devils running:
1350 gpu/850 volts/885 memory, and the memory timings from 1500 MHz. I'm getting about 54.7 mh/s. Fans run ~24% with temps in the low to mid 50s for the gpu (I'm on ubuntu so I'm not sure of the memory temp). They are rock solid. That is slower than your top, but about the same considering your throttling.
It's up to you, but your only option is to scale back your memory or open them up and put in better thermal pads. (I'd suspect your cards would last longer too.)
It's all about winning or losing the silicon lottery. It's hard to treat them all the same.
Thanks for such a prompt response.
They were rock solid during the winter months as they were in my basement but obviously when the ambient temperature started climbing so did the amount of crashes.
The issue here really isn't the stability but perhaps the configuration. Bottom line is that I'd really like to figure out why my fans won't (or can't?) reach in the 90% - 100% range despite my commands in Phoenix to do so.
I'm telling PM "Make the fans go max speed!"
Phoenix says "Fans...... go almost max speed. Four-fifths outta do it."
Then PM later says, "Oh look... your thermal throttling."
I suppose that's my issue.
Ahh.. I gotcha. Truthfully I had a lot of problems getting software overrides to work and then be stable with my Red Devils. That's through windows and Ubuntu, but I had more success in windows. That's what led me down the Bios route.
You should be able to lock the fan speed in the bios. You could lock it there and not try to go through software to do it. I'm sure that'll at least allow you to max your fans no matter what the vram temps are.