RX6800 - Efficient Overclocking

[frxbg]

Hi, after I tried this bios and it didn’t work, I decided to try the bios from RX6800XT reference card and it worked. But in the HiveOS dashboard there is a problem after the flash and it does not show me information about the hashrate (I will solve it later). But as you can see from the picture the card has the tables from the XT version at the moment what I notice is:

increase the consumption from 96W to 130W,

I can raise the memory to 1073Mhz before over 1060Mhz could not,

temperatures rose,

also the hashrate from 58.5 to 61.8

Now I have to set all the parameters and I will share more information.
The bios I used:

AMD RX 6800 XT VBIOS

[Echalotte]

Extra settings parameters for your card? Thx.
Screenshot of details welcome

[frxbg]

Some more things I noticed. There were no problems all night (dropped hashrate, overhead and so on) and the card worked stably. As can be seen from the pictures “f state” the frequency is much higher also in Teamredminer “compute units” shows only 54 (on the card with a changed bios) while on the other are 60 for this you need to increase the frequency of processor. I will leave it today to see what the difference will be with an even higher frequency.

[Echalotte]

Thanks I think I will give it a try too then. Seems promising so far for both of you.

Need to know if this little extra mh/s is worth 30w

[Buldog_13]

I decided to give this bios another try, and it runs stable today, not sure what I had going on yesterday. Best I have gotten stable is between 62.5-63mh/s at 135-140 watts. Let me know if you are able to get any better 140 watts is pretty high, but I’m gaining nearly 3mh/s with each card so I think it’s worth it

[Echalotte]

XT bios flashed then revert back to original. what I get so far without tweaking only GPU et memory

=== GPU 0, 03:00.0 Radeon RX 6800 16368 MB ===
Bios: 113-D4120900-101
Core: 1350 MHz 837mV, Mem: 1069 MHz
PerfCtrl: manual, Load: 99%, MemLoad: 100%, Power: 141.0 W, Cap: 203 W
Core: 58°C, HotSpot: 63°C, Mem: 70°C, Fan: 80%, RPM: 2640
Core state: 1, clocks: 500 1350*
Mem state: 3, clocks: 96 456 673 1069*
SOC state: 1, clocks: 800 1200*
DCEF state: 1, clocks: 417 960* 1200
F state: 1, clocks: 500 1551*
PCIE Link speed: n/a, PCIE Link width: n/a
Memory total: 16368.00 MB, used: 4695.52 MB, free: 11672.48 MB, type: Samsung GDDR6

[2021-08-15 00:43:53] Mining ethash with 1 GPU workers
[2021-08-15 00:43:53] GPU PCIe CUs CoreMHz SocMHz MemMHz TEdge TJct TMem FanPct FanRpm VDDC Power ETH Cfg
[2021-08-15 00:43:53] 0 03:00.0 60 1350 1200 1069 57C 64C 70C 80.00% 2640 831 mV 142 W A912
[2021-08-15 00:43:53]
[2021-08-15 00:43:53] Stats Uptime: 0 days, 00:50:01
[2021-08-15 00:43:53] ----------------------------------------- GPU Status -------------------------------------------
[2021-08-15 00:43:53] GPU 0 [57C, fan 80%] ethash: 62.27Mh/s, avg 59.18Mh/s, pool 64.17Mh/s a:153 r:0 hw:0
[2021-08-15 00:43:53] Total ethash: 62.27Mh/s, avg 59.18Mh/s, pool 64.17Mh/s a:153 r:0 hw:0
[2021-08-15 00:43:53] ----------------------------------------- Pool Status ------------------------------------------
[2021-08-15 00:43:53] eu-eth.hiveon.net ethash: 62.27Mh/s, avg 58.58Mh/s, pool 64.17Mh/s a:153 r:0
[2021-08-15 00:43:53] eu-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 00:43:53] naw-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 00:43:53] naw-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 00:43:53] ------------------------------------------------------------------------------------------------

Going to bed now. I will see tommorow if mh crash to 58 like usual.

[D33X]

this is my latest with Gminer

[Echalotte]

[2021-08-15 12:03:53] ------------------------------------------------------------------------------------------------
[2021-08-15 12:03:53] Mining ethash with 1 GPU workers
[2021-08-15 12:03:53] GPU PCIe CUs CoreMHz SocMHz MemMHz TEdge TJct TMem FanPct FanRpm VDDC Power ETH Cfg
[2021-08-15 12:03:53] 0 03:00.0 60 1350 1200 1069 56C 62C 68C 80.00% 2640 837 mV 141 W A912
[2021-08-15 12:03:53]
[2021-08-15 12:03:53] Stats Uptime: 0 days, 12:10:01
[2021-08-15 12:03:53] ----------------------------------------- GPU Status -------------------------------------------
[2021-08-15 12:03:53] GPU 0 [56C, fan 80%] ethash: 62.29Mh/s, avg 62.07Mh/s, pool 59.85Mh/s a:2094 r:0 hw:0
[2021-08-15 12:03:53] Total ethash: 62.29Mh/s, avg 62.07Mh/s, pool 59.85Mh/s a:2094 r:0 hw:0
[2021-08-15 12:03:53] ----------------------------------------- Pool Status ------------------------------------------
[2021-08-15 12:03:53] eu-eth.hiveon.net ethash: 58.94Mh/s, avg 61.44Mh/s, pool 59.85Mh/s a:2094 r:0
[2021-08-15 12:03:53] eu-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 12:03:53] naw-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 12:03:53] naw-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-15 12:03:53] ------------------------------------------------------------------------------------------------

so far so good

=== GPU 0, 03:00.0 Radeon RX 6800 16368 MB ===
Bios: 113-D4120900-101
Core: 1350 MHz 837mV, Mem: 1069 MHz
PerfCtrl: manual, Load: 99%, MemLoad: 100%, Power: 141.0 W, Cap: 203 W
Core: 57°C, HotSpot: 62°C, Mem: 68°C, Fan: 80%, RPM: 2640
Core state: 1, clocks: 500 1350*
Mem state: 3, clocks: 96 456 673 1069*
SOC state: 1, clocks: 800 1200*
DCEF state: 1, clocks: 417 960* 1200
F state: 1, clocks: 500 1551*
PCIE Link speed: n/a, PCIE Link width: n/a
Memory total: 16368.00 MB, used: 4695.52 MB, free: 11672.48 MB, type: Samsung GDDR6

[gamesun]

Cool thx

[D33X]

Is there anything I can do with lazy GPUs, I have 1 that’s always 1-2 hash slower then the others. Every time I try tweeking, the rates always go down

[Gasico]

I did the same as above, flashing my Reference RX 6800 to the XT Version and then went back to the original bios, i don’t know why it works but it does, now the SoC Clock is locked at 960 which is what we wanted so now we can run at full hashrate

[Buldog_13]

This is what I did originally, but deleted my post. I decided to just stick with the 6800 xt bios. With the orginal bios flashed back onto the cards your power usage shows 100-110 but the power at the wall is still 130-140. On top of no power gains, one of the time’s i restarted my rig the soc limit reverted back and my rig became unstable.

[Echalotte]

True. same issue. Do not stay after reboot. Need to look what we can do with the XT bios

[Gasico]

in my case the soc doesn’t reset, even after several reboots i got soc at 960 Mhz, for now this is the most stable i got with accurate power consumption (checking with powermeter)

increasing memory clock causes instability

[Echalotte]

My soc is at 960 too . But it was at 1200 before reboot.

=== GPU 0, 0d:00.0 Radeon RX 6800 16368 MB ===
Bios: 113-D4120900-101
Core: 1350 MHz 637mV, Mem: 1064 MHz
PerfCtrl: manual, Load: 99%, MemLoad: 100%, Power: 99.0 W, Cap: 203 W
Core: 51°C, HotSpot: 56°C, Mem: 66°C, Fan: 100%, RPM: 3300
Core state: 1, clocks: 500 1350*
Mem state: 3, clocks: 96 456 673 1064*
SOC state: 1, clocks: 800 960*
DCEF state: 1, clocks: 417 738* 1200
F state: 1, clocks: 500 955* 1551
PCIE Link speed: n/a, PCIE Link width: n/a
Memory total: 16368.00 MB, used: 4628.16 MB, free: 11739.84 MB, type: Samsung GDDR6
VDDCR_SOC: 1025mV, VDDCR_CPU: 1056mV

[2021-08-16 01:36:27] ------------------------------------------------------------------------------------------------
[2021-08-16 01:36:27] Mining ethash with 1 GPU workers
[2021-08-16 01:36:27] GPU PCIe CUs CoreMHz SocMHz MemMHz TEdge TJct TMem FanPct FanRpm VDDC Power ETH Cfg
[2021-08-16 01:36:27] 0 0d:00.0 60 1350 960 1064 51C 56C 64C 100.00% 3300 643 mV 98 W A432
[2021-08-16 01:36:27]
[2021-08-16 01:36:27] Stats Uptime: 0 days, 05:22:01
[2021-08-16 01:36:27] ----------------------------------------- GPU Status -------------------------------------------
[2021-08-16 01:36:27] GPU 0 [51C, fan 99%] ethash: 58.20Mh/s, avg 57.96Mh/s, pool 56.16Mh/s a:868 r:0 hw:0
[2021-08-16 01:36:27] Total ethash: 58.20Mh/s, avg 57.96Mh/s, pool 56.16Mh/s a:868 r:0 hw:0
[2021-08-16 01:36:27] ----------------------------------------- Pool Status ------------------------------------------
[2021-08-16 01:36:27] eu-eth.hiveon.net ethash: 58.20Mh/s, avg 57.38Mh/s, pool 56.16Mh/s a:868 r:0
[2021-08-16 01:36:27] eu-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-16 01:36:27] use-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-16 01:36:27] use-eth.hiveon.net ethash: 0.000 h/s, avg 0.000 h/s, pool 0.000 h/s a:0 r:0
[2021-08-16 01:36:27] ------------------------------------------------------------------------------------------------

[wegnar]

After several tries I managed to find the best performance like this.
I changed the miner too.
This helped me a lot, it was difficult to find a configuration for PowerColor boards

[neospice]

I was having a lot of issues with my reference AMD 6800 that worked great in Windows (between 63 and 64) but then dropped to 58 under HiveOS. After reading this thread, what fixed it for me was applying the 6800 XT BIOS but then my power was way too high. I think applied back the stock 6800 bios (saved my own before modding) and power came down and hashrate stayed.

I’m now at a consistent 63 MH/s with about 114 watt power draw. I haven’t tweaked much since this but right now i feel its pretty stable.

[Echalotte]

Until you restart or ur rig crash

Sometime your soc will be 800 / 960 / 1200 completely random and your hash rate will vary

I think we missing something

[Crypto-Cavern]

So flash to XT is a no go?

[Echalotte]

Up to you.
Good result atm but for how long ? xD