Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 207. (Read 3839201 times)

Are you overclocking ?

Anyone else have a 'GPU #0 returned incorrect data!' error? Happens on GPU #0, 1 of my 4 Saphhire R9 280xs, after about 6 hours of mining. It's always the same GPU returning the error, while the others are fine.

Interesting fact: after modification timings Gigabyte HD7950 gives stable ~330H/s with 1% rejected. (1190/1470) - Pic 1

If increase mem frequency up to 1500, GPU gives ~361 H/s. But about 15% of rejected. In log file appears strings of buffer overflow. - Pic 2

https://yadi.sk/i/SHGnaZM739jvER
Pic 1

https://yadi.sk/i/dRQtFiZW39jvLu
Pic 2


What does this buffer overflow mean ? Obviously, hashrate indexes is not very accurate ?

Does mclock work on linux ?

I installed it and Claymore 11.1 works only a few minutes and blocks computer (a proof machine with a single RX 470 card) and is needed a hard reset.

I tried this one and nothing happened.. It same with other driver, there is no changes in speed, the only changes is the relive for gamers and you can't use bios modding..

Just now is available the Windows driver 17.1.1. Anybody tried it with the last version of Claymore Zcash?

For temps and fan speeds, I'm  using atitweak utility in linux. Setting the fans and clocks with it when I start the rig and monitoring the fans and temps with it too.

here is the set.sh on my rig to set fans and clocks:
-----------------
echo "setting clocks and fan speeds..."
#aticonfig --od-enable
.local/bin/atitweak --adapter=0 --set-engine-clock=850 --set-memory-clock=850 --performance-level=all --set-fan-speed=95
.local/bin/atitweak --adapter=1 --set-engine-clock=1050 --set-memory-clock=1500 --performance-level=all --set-fan-speed=80
.local/bin/atitweak --adapter=2 --set-engine-clock=850 --set-memory-clock=850 --performance-level=all --set-fan-speed=90
.local/bin/atitweak --adapter=3 --set-engine-clock=1050 --set-memory-clock=1500 --performance-level=all --set-fan-speed=85
#
echo "Setting finished. Now showing status..."
~/.local/bin/atitweak -s
-----------------


And using ~/.local/bin/atitweak -s
command, I can monitor temps.

Here is my linux miner output:
ZEC - Total Speed: 813.780 H/s, Total Shares: 464, Rejected: 3, Time: 00:48
ZEC: GPU0 171.829 H/s, GPU1 255.613 H/s, GPU2 119.854 H/s, GPU3 266.483 H/s


GPU0: Asus Radeon r9 280x : Faulty fan problem, that's why it's underclocked. Could not modify bios to undervolt. Could run 1050:1500 clocks if run single.
GPU1 and GPU3: Powercolor radeon r9 280x. Modified bios to undervolt. Good cards. Happy with them.
GPU2 : Asus radeon r9 270. Could not modfy bios to undervolt. thats why its underclocked.


and GPU clocks:
rig1@rig1:~$ .local/bin/atitweak -s
0. AMD Radeon R9 200 Series      (:0.0)
    engine clock 850MHz, memory clock 850MHz, core voltage 1.2VDC, performance level 3, utilization 97%
    fan speed 95% (5841 RPM) (user-defined)
    temperature 65 C
    powertune 0%
1. AMD Radeon R9 200 Series                           (:0.1)
    engine clock 1050MHz, memory clock 1500MHz, core voltage 1.175VDC, performance level 3, utilization 97%
    fan speed 80% (2852 RPM) (user-defined)
    temperature 56 C
    powertune 0%
2. AMD Radeon (TM) R9 200 Series (:0.2)
    engine clock 850MHz, memory clock 850MHz, core voltage 1.215VDC, performance level 3, utilization 98%
    fan speed 90% (3156 RPM) (user-defined)
    temperature 53 C
    powertune 0%
3. AMD Radeon R9 200 Series                           (:0.3)
    engine clock 1050MHz, memory clock 1500MHz, core voltage 1.175VDC, performance level 3, utilization 97%
    fan speed 85% (3022 RPM) (user-defined)
    temperature 60 C
    powertune 0%


My PSU is a 80+ Bronze edition 1000W PSU. it's not enough if all the cards run full speed, so I need to underclock some of the cards.

Running ubuntu 14.04 with AMD 15.2 drivers.

Setting up and using windows is not easy so I do not use windows. I am too old to learn how to use windows. Linux is easy.

So a lowering of hash rate, what about temps and fan speeds?

Irrelevant...

Claymore how old are you? 

Has anyone tried the new 17.1.1 AMD drivers for RX 480's yet? I am not feeling brave.

For me [2 x (4 x Rx480 8GB)]
Windows version --> 1040-1020
Linux Version --> 980-990

can anybody moving from v11.1 on windows to linux tell me if you see any difference in speed please.

Thank you.

claymore what does your miner set for default clocks

I have many rigs x6 r9 Fury each , and few rigs after some time, miner closed. I use -i 5 and Driver 15.12

When you start miner for Fury and it cannot apply asm, it displays a warning with info what drivers you need (15.12 or 16.3.2). Since both 15.12 and 16.3.2 does not support Polaris, you cannot enable asm for Fury and use Rx4xx cards on same rig. With asm you should see about 380-400H/s on Nano, without asm -15% or so.


Read OP or Readme, "known issues" section.

yes, so is there a big increase in H/s in ASM mode for r9 fury? Will it draw more power too?