The new version is finally ready. You can download PhoenixMiner 5.8a from here:

https://phoenixminer.info/downloads/PhoenixMiner_5.8a_Windows.zip
https://phoenixminer.info/downloads/PhoenixMiner_5.8a_Linux.tar.gz


Changes in version 5.8a :

• Added lock core clock
• Fixed an issue causing crashing with some RTX 3060/3080/3090 cards
• Implemented new "turbo" kernels (-clkernel 3) for AMD Polaris cards that can work with the current DAG sizes over 4 GB. Note that -clkernel 3 uses double the VRAM and will
  provide slightly faster hashrate with slightly higher power consumption. You can use the -rvram command-line parameter to specify how much VRAM to be left unused
• Increased the maximum supported DAG epoch to 600 (i.e. until about Sep 2023)
• Implemented full hardware control for AMD RX6900/6800/6700 cards under Linux. Note that with these cards under Linux you need to specify relative core voltage: e.g. -
  cclock -50 will set the core voltage to be 50 mV under the default value
• Added ROCr kernels for Vega, Radeon VII and Navi cards. With these kernels you will be able to run these cards with Linux drivers 20.45 and later but the performance will
  be lower than with the older PAL drivers and kernels. We recommend using AMD Linux driver 20.30 for all cards except RX6900/6800/6700
• Fixed an issue causing crashing with some RX6900/6800/6700 cards under Linux (there is no need to run these cards with -clkernel 0 anymore)
• Added support for AMD Windows drivers up to 21.8.1. Note that Radeon VII cards will not work with drivers 21.6.1 or higher - you need to use older drivers for proper
  operation of these cards
• Added support for AMD Linux drivers up to 21.20 (use older drivers for Vega or Radeon VII cards as they will not work with 21.20). Note that the latest 21.30 drivers are
  not supported (and the initial testing shows that even the older Polars cards are not working properly with them, so avoid 21.30 for now)
• Numerous other fixes and small improvements

Please let us know if you have any problems or questions related to PhoenixMiner 5.8a

Hey guys,
I have a rig consisting of 6 x RX 480s and I recently moved them to a rack where there is no HDMI display. When I set it to mine it starts mining, but the fans don't speed up what so ever, but because there is no extended display on one of the GPUs, I can not edit the fan speed (have tried the inbuilt fan speed setter thing and msi after burner). I have tried changing  Primary VGA (or what ever it was) to PCIE, however I just get a blank screen (so I unplug the GPUS to change it back to the IGPU).

My questions are:
- Why can't I set the fan speed
- Why can't I set Primary VGA to PCI E without just getting a blank screen.

My Rig has:
6 RX 480s
4GB ddr3 ram
Asrock H81 pro btc
1600 w PSU (yes ik it's overkill)
powered pci e risers

Thanks

Edit: I just found HDMI Emulators, I think these would work. I would buy this if there aren't any other soloutions.
For those interested: https://www.amazon.com/CompuLab-fit-Headless-Display-Emulator/dp/B00FLZXGJ6

Tried this I was using 16.12.2 now i'm using 16.11 or something like that.
Cheers!

If we did that though I don't think we would be able to mod the bios because AMD disabled bios editing in 16.12.1
Correct me if i'm wrong though.

Hey cheers for the advice
Thank you so much!!
 I don't really know what I did, I turned it on pressed lookup on gpu z and it actually started working! However now I tried to install a modded bios (copied 1750 mem timings to 2000)and basically it works and is identified as an rx 480 but it says "code 43 the device is not functioning correctly" in device manager or something along the lines of that, so I tried opening gpu-z it works and shows it is an rx 480, but doesn't display core and memory clocks, so I re-flashed the original bios.
Any help with flashing a new bios and get it recognised would be much appreciated!

Tried this it knows there is a gpu ,but says it's a general vga gpu or somthing, the miner doesn't recognise it nor does windows or msi afterburner.

Already tried updating the bios

Sure here goes

Unplug the molex to mobo wires Tried This didn't work

Do 1 gpu. Use the pcie riser closest to the CPU see if it works just 1 gpu. Tried this didn't work

Install all drivers and get it mining. Just the one card.Tried This didn't work

If that does not work install one gpu in the full slot.doesn't work even in the full 16x slot

Fully install drivers and get it mining.


Other tricks what are your gpus.

Do they have a dvi connector .  If so buy a dvi to hdmi connector. DVI didn't work

Many times. Dvi to hdmi works.

The cables are cheap.

If the gpus only have hdmi out along with display out ports use a display to hdmi cable as sometimes that works.

I have hdmi to display
Hdmi to dvi
Display to dvi

And they get past a lot of connection issues.

Three adapters are all under 10 bucks.

Does your display have dvi and hdmi?

Cheers for the help though!

I just got an H81 Pro BTC and installed windows using the igpu then I tried to install my RX 480s and they didn't work.

So far I have tried:
plugged in both the molex connectors
Clearing the cmos
reFlashing the bios
Tried to put the one 480 directly on the 16x pcie connector
Set pcie to Gen 1 and Gen 2
Tried different risers
Tried different HDMI cable

I did actually get it to work and got really excited, I then installed the drivers and restarted, but then it stopped working.

Do i have a defective mother board?

My rig:
1600w EVGA PSU
6 RX 480
Intel G1840
4gb ddr3 ram
H81 Pro BTC
6 powered risers
128 gb ssd

Any help would be greatly appreciated!
Cheers