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Quote from: ikyo on August 05, 2018, 11:46:58 PM

I have been doing some testing on one of my rigs before changing over all of them to SRB. The initial output I am getting is higher than what I have been getting with Cast, but I did notice something on one of my multi-card rigs. The hash rate started around 12.5k (with 6 cards) and then it dropped down to all except 2 of the cards doing below 2k each. I checked the temperature and everything was fine. I also didn't notice anything else strange. I stopped the miner and restarted it. They all came back to the normal numbers. Any idea what could have caused the issue?

Startup numbers:

Code:

[2018-08-05 18:43:27] GPU0 : 2086 H/s [T: 48c, RPM: 2312, CC: 1408 MHz, MC: 1100 MHz][BUS:7]
[2018-08-05 18:43:27] GPU1 : 2088 H/s [T: 47c, RPM: 2302, CC: 1408 MHz, MC: 1100 MHz][BUS:21]
[2018-08-05 18:43:27] GPU2 : 2086 H/s [T: 49c, RPM: 2333, CC: 1408 MHz, MC: 1100 MHz][BUS:10]
[2018-08-05 18:43:27] GPU3 : 2084 H/s [T: 48c, RPM: 2351, CC: 1408 MHz, MC: 1100 MHz][BUS:3]
[2018-08-05 18:43:27] GPU4 : 2089 H/s [T: 47c, RPM: 2373, CC: 1408 MHz, MC: 1100 MHz][BUS:18]
[2018-08-05 18:43:27] GPU5 : 2087 H/s [T: 44c, RPM: 2332, CC: 1408 MHz, MC: 1100 MHz][BUS:13]
[2018-08-05 18:43:27] Total: 12520 H/s

try my settings for 2.1kh/s

overdrive p7: 1502mhz @ 950mv
p3 mem: 1100 @ 950mv
power target 50%
note: my cards are samsung memory

srb config is: { "id" : 0, "intensity" : 120, "worksize" : 8, "threads" : 2},

for each card.

this is vega 56 or 64? bios? and how much electricity use ? 950mv is to much.

vega 64.

950mv can be lowerd depending silicon lotery ;-p

i find 950mv the most stable with no stales or rejects and never any miner crash.

u can tune it depending ur cards and i would suggest to test each card with a lower voltage before putting them all lower than 950mv

my vega64LE use 900mv 1492GPU aand 1095mem . HR 2090.
If i put 950mv and1500GPU/1100mem i have 2110HR but use 6-8W more from the wall and temp go up 1-2C.
And this is ok if you have free or cheap electricity.
but 20HR give only 0,3$ per month and use 5KW per month(0,5$)

I am using 1408/925 and 1100/905 for those numbers. The electricity here isn't all that cheap so the small increase probably isn't worth it. I also want to keep the temps as low as possible. I have a dedicated AC unit in that room so the less I can tax it the better.

You have very god HR for 1408GPU. 1408mhz work with 890mv.