Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[kmarx]

Just to share what I've been observing with the "power spikes" and HWINFO64. Spikes seem to occur every 5-6 polling intervals (time = 100ms)

V9 (Intensity 8 ):

Fury Nitro:

1110/550, -108mv, ~352 S/s;

GPU Core Current: AVG 153A, but spikes as high as 247A

GPU Core Power: AVG 173W, but spikes as high as 280W

1140/550, -12mv, ~360 S/s;

GPU Core Current: AVG 175A, but spikes as high as 310A

GPU Core Power: AVG 210W, but spikes as high as 370W

RX470 Nitro 8GB:

1300/2100, -100mv, ~223 S/s;

GPU Core Current: AVG 78A, but spikes as high as 126A

GPU Core Power: AVG 78.3W, but spikes as high as 126W


V8 (Intensity 4 ):

Fury Nitro:

1110/550, -108mv, ~300 S/s;

GPU Core Current: AVG 145A, but spikes as high as 192A

GPU Core Power: AVG 165W, but spikes as high as 218W

1140/550, -12mv, ~310 S/s;

GPU Core Current: AVG 180A, but spikes as high as 224A

GPU Core Power: AVG 207W, but spikes as high as 274W

RX470 Nitro 8GB:

1300/2100, -100mv, ~190 S/s;

GPU Core Current: AVG 75A, but spikes as high as 99A

GPU Core Power: AVG 74.5W, but spikes as high as 99.6W

[vatusasid]

Just to share what I've been observing with the "power spikes" and HWINFO64. Spikes seem to occur every 5-6 polling intervals (time = 100ms)

V9 (Intensity 8 ):

Fury Nitro:

1110/550, -108mv, ~352 S/s;

GPU Core Current: AVG 153A, but spikes as high as 247A

GPU Core Power: AVG 173W, but spikes as high as 280W

1140/550, -12mv, ~360 S/s;

GPU Core Current: AVG 175A, but spikes as high as 310A

GPU Core Power: AVG 210W, but spikes as high as 370W

RX470 Nitro 8GB:

1300/2100, -100mv, ~223 S/s;

GPU Core Current: AVG 78A, but spikes as high as 126A

GPU Core Power: AVG 78.3W, but spikes as high as 126W


V8 (Intensity 4 ):

Fury Nitro:

1110/550, -108mv, ~300 S/s;

GPU Core Current: AVG 145A, but spikes as high as 192A

GPU Core Power: AVG 165W, but spikes as high as 218W

1140/550, -12mv, ~310 S/s;

GPU Core Current: AVG 180A, but spikes as high as 224A

GPU Core Power: AVG 207W, but spikes as high as 274W

RX470 Nitro 8GB:

1300/2100, -100mv, ~190 S/s;

GPU Core Current: AVG 75A, but spikes as high as 99A

GPU Core Power: AVG 74.5W, but spikes as high as 99.6W

I have the R9 Nano. The GPU will have flucuate between 0% to 100% power all the time, and then it crashes.

[citronick]

Just to share what I've been observing with the "power spikes" and HWINFO64. Spikes seem to occur every 5-6 polling intervals (time = 100ms)

V9 (Intensity 8 ):

Fury Nitro:

<snipped>

I have the R9 Nano. The GPU will have flucuate between 0% to 100% power all the time, and then it crashes.

My Nano rigs got the greatest boost from v9 but some of them went as high at 350H/s then died.... died as in gone from device manager -- so hard reboot and reduced the intensity to 4. Some Nanos wre still coping at i=6

I think the "maximal" that Claymore uses the i=7 and i=8 to give that 1% additional boost -- maybe causing the spikes. I can only imagine he may be exploring deeper into the power architecture to get that extra boost.

i=6 is safe zone for me and I will set this as the gold standard for v9, else i=4 then i=0 -- last resort v8.

v8 is , IMHO, the most stable version of all. Well to be fair, v9 is labeled BETA.... 

[Xardas2014]

I decided to give dwarfpool a try for ZEC since other pools were showing a lot less hash than my miners were producing. It has been about 24 hours of testing and the results are rather dramatic. Rigs tested averaged ~1080 sol/s shown in Claymore.........on coinmine.pl I was paid for ~830 sol/s.......at dwarfpool I got paid for ~1100 sol/s. Dwarfpool FTW!

[Hotmetal]

Anyone having these Power Spikes/Shutdowns with Tahiti GPUs?

I monitored mine at the wall, and the power was constant the entire time. It never went more than 5% off from the average wattage.

Don't have any issues however I got like 2000 Watts of PSU power, powering only 5x 280x since I needed the extra PCIe plugs.

Maybe its only with the RX series, however for those its not worth the switch since ETH is just as profitable at the moment.

You're not going to catch these spikes at the wall. Use Corsair link if you have that PSU's and you can see it easily.
Some people have reported HWINFO catches it as well but i haven't tested that.

[ffthomas]

Same problem here.. But the interesting thing is that I don't experience this random reboot on all of my rigs. I use default intensity (-i 6) on all rigs and tried to set it lower on the crashed rigs.. it didn't help. All rigs are built with the same hardware: 6*RX470 with 1600W Enermax PSU.

[IOTUSA]

I decided to give dwarfpool a try for ZEC since other pools were showing a lot less hash than my miners were producing. It has been about 24 hours of testing and the results are rather dramatic. Rigs tested averaged ~1080 sol/s shown in Claymore.........on coinmine.pl I was paid for ~830 sol/s.......at dwarfpool I got paid for ~1100 sol/s. Dwarfpool FTW!

Does Dwarfpool offer a U.S. node? I was considering moving my rigs there myself.

[Cakalasia]

Same problem here.. But the interesting thing is that I don't experience this random reboot on all of my rigs. I use default intensity (-i 6) on all rigs and tried to set it lower on the crashed rigs.. it didn't help. All rigs are built with the same hardware: 6*RX470 with 1600W Enermax PSU.

Same here. I even set the intensity to 3 or 4, there are still reandom boots. I have to reduce the frequency, that solve the problems.

[Qazo]

You're not going to catch these spikes at the wall. Use Corsair link if you have that PSU's and you can see it easily.
Some people have reported HWINFO catches it as well but i haven't tested that.

I have RM1000 and downloaded Corsair Link

where I can see those spikes?

[Xardas2014]

I decided to give dwarfpool a try for ZEC since other pools were showing a lot less hash than my miners were producing. It has been about 24 hours of testing and the results are rather dramatic. Rigs tested averaged ~1080 sol/s shown in Claymore.........on coinmine.pl I was paid for ~830 sol/s.......at dwarfpool I got paid for ~1100 sol/s. Dwarfpool FTW!

Does Dwarfpool offer a U.S. node? I was considering moving my rigs there myself.

Yes, there .bat setup is different from the ETH pool there, so I'll post a sample .bat........

Code:

ZecMiner64.exe -wd 1 -r 0 -i 8 -zpool zec-us1.dwarfpool.com:3336 -zwal t1cPySgKnxaW85tPLJX5nrRXoMiyeMRDX5h.PC -zpsw <your email here to enable email monitoring alerts, or use x>  -allpools 1

[beIbox]

Starting from v9 my system hangs and reboot automatically even if I reduce intensity.
VGA: VTX3D R9 390 at default clocks 1000/1500
No problem with v8 even at max intensity.
Waiting for v. 9.1 to fix this...

[Prelude]

Starting from v9 my system hangs and reboot automatically even if I reduce intensity.
VGA: VTX3D R9 390.
No problem with v8 even at max intensity.
Waiting for v. 9.1 to fix this...

9.1 won't fix it. V9 is harder on GPUs, they need more voltage to be stable vs V8.

[ffthomas]

Same problem here.. But the interesting thing is that I don't experience this random reboot on all of my rigs. I use default intensity (-i 6) on all rigs and tried to set it lower on the crashed rigs.. it didn't help. All rigs are built with the same hardware: 6*RX470 with 1600W Enermax PSU.

Same here. I even set the intensity to 3 or 4, there are still reandom boots. I have to reduce the frequency, that solve the problems.

Thanks, I will try to undervolt and/or underclock the GPUs. But I prefer stock settings and after everything is stable with stock bios then I can modify and optimize clock, timing, voltage, etc. But now I have issues when using full stock settings.

I hope someone will figure it out why this random reboot happens.

I think it is related somehow to the wires, breakers, or something with the electricity and the PSU reacts this way to protect the rig. (My other rigs are in the garage (different wires and breakers) and they are stable with -i 6 and all same hardware and settings as my rigs in the house. I don't overload any breakers not even close.)

I'm not an electrician genius so that's not my table.

[Gagana]

From 8.0 to 9.0

6*RX 470 power consumption raised from 800W to 1000W from the wall.

[xeridea]

From 8.0 to 9.0

6*RX 470 power consumption raised from 800W to 1000W from the wall.

Odd, mine went from ~860 to ~860.

[aimsml]

Hi all.
For information...
win7-64bit-radeon-software-crimson-relive-16.12.1-dec7
r9 380x graphics cards overclock well, the GPU 1100 and 1750 memory have 188 h/s

http://pixs.ru/showimage/testjpg_7907524_24344246.jpg

[CodenameCOTC]

Report:
470 4GB Power Color Red Devil get 210-215 sols on v9!
Good job clayyyyy 

[cleverserge]

MSI R9 390 1100/1500/def volatge get only 250 H/s with V9.
On V8 it was 270-280

Win7 64bit
15.12

How did you manage to get 300+ with R9 390?

Best regards

[Gagana]

Report:
470 4GB Power Color Red Devil get 210-215 sols on v9!
Good job clayyyyy 

Stock BIOS? Overclocked?

[devlin]

these power spikes or shutdown/crash seems to have a correlation with to much undervolt and overclock, depends of cards and their quality, I raised voltages, less overclock and for now is running fine.