Topic: RX 6800 improvements - page 2. (Read 1013 times)

Just use latest ones.

63.5 mh/s is rock solid with TRM 0.8.1 under Windows using max possible mem oc and fast timings preset in Radeon Settings.
97 watt by sensor now.
I was able to achieve 89 watt by lowering soc voltage and gpu voltage further but it leads to sudden BSODs ((

See my current stable config in detailed screenshot: (it is XFX merc 319 RX 6800)

Can anybody tell me which version of AMD Windows drivers are recommended for 6800?
The info is so confusing about it.

hmm, ok, but power slider in Radeon Software dont work as I want. I did try to set Minimum Voltage GFX to 625mV and it was around there, but I could not raise it to 700mV with that slider in software.

XFX merc 319 Black RX 6800 XT
700 mV CORE (688mV)
1150 Mhz CORE
2090 Mhz VRAM
21.2.3 DRIVERS
128W

61.6xx MH/s

Power limit is also buged. If I go over 15, max freq drop to 500Mhz.

short answer is no , wait for their crypto mining GPU that uses same mem as Radeon Vii

Greetings, I have ASUS TUF Gaming Radeon RX 6800 OC (Micron Memory) graphics cards. And they do not exceed 64,240 MH/s

I thought they would reach a minimum of 85,000 MH/s; So it's time to wait for the great Geniuses to act to see if they can improve this.

-Windows 10 Pro
-Memory RAM 16 GB PC
-All Cards have the same configuration with: Afterburner 4.6.3
-Core voltage 850 (mV)
-Power limit 0
-Core Clock 1200
-2150 memory clock
-Fan speed 50%
-----------------------------------
50C to 52C. 126W to 127W
-----------------------------------
Excuse my bad English :-)

Team red miner:

Navi21 (6800/6800XT/6900XT)
===========================
TRM v0.8.1 added basic support for Big Navi cards (Navi21). This section will
be expanded as we do more work for this gpu generation. For now, the suggested
tuning process is quite simple:

1) Big Navis should run in A-mode (it's chosen by default). While the B-mode is
   available, the value of the 128MB cache is degraded with a larger memory
   footprint.

2) Windows is preferred over linux for now since you can choose the "fast timings"
   under win which adds 1.0-1.5 MH/s. Testing was made on Adrenalin 20.12.1.
   The AMD recommended driver (20.11.3) had bugs for handling clocks on our 6800.

3) To be able to lower voltage properly, you need to modify the powerplay table
   with e.g. MorePowerTool. Install GPU-Z and MorePowerTool. Save the bios using
   GPU-Z. Open MorePowerTool, select your Big Navi gpu in the dropdown list. If
   necessary, load the bios to get a baseline configuration. Lower the "Power
   and Voltage" -> "Minimum Voltage GFX (mV)" limit to the voltage you with to
   run. Lower than 625mV is rarely stable, although we've been able to run at 612mV.

   NOTE FOR 6800 USERS:
   6800 users might also want to increase the SOC TDC limit in the same tab. It
   was 30A for our test 6800 which caused throttling. Increase it to 32 or 33A.
   Before doing so, you should verify in HWiNFO64 that you're really being
   throttled though by checking the "GPU SOC TDC Limit" row. If it hits 100%,
   you need to increase the power limit.

3) Clocks suggestions as starting point for further tuning (Windows with "Fast
   Timing" selected, Linux can choose similar but will se lower hashrates):

   6800:   1235 MHz core, 2124 MHz mem, 625 mV, SOC TDC +10% -> 62.6-62.7 MH/s.
   6900XT: 1200 MHz code, 2138 MHz mem, 650 mV, 63.2 MH/s


Happy mining!

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 Videos of the undervolt can be found in youtube

Probably you have a Samsung memory, because only it allows you to underestimate the values so much.
Typically Core Undervolt is chosen from the 700-800 range, but you're in luck.
I have no other suggestions for setting up a video card. If problems arise in the future, then Core Undervolt will have to be increased to 700

From RedTeamMiner documentation:

To be able to lower voltage properly, you need to modify the powerplay table
   with e.g. MorePowerTool. Install GPU-Z and MorePowerTool. Save the bios using
   GPU-Z. Open MorePowerTool, select your Big Navi gpu in the dropdown list. If
   necessary, load the bios to get a baseline configuration. Lower the "Power
   and Voltage" -> "Minimum Voltage GFX (mV)" limit to the voltage you with to
   run. Lower than 625mV is rarely stable, although we've been able to run at 612mV.

Then you Save, Restart Windows and you will see the new minimal core mV to the number you choosed.

how  exactly did you lower vcore to 662mV?

Hi community!

Let's share our configs about this graphic card, so maybe together we can increase our hashrate:

Sapphire RX 6800 Pulse
662 mV CORE
1250 Mhz CORE
2110 Mhz VRAM
21.2.3 DRIVERS
120W

62.8xx MH/s