Post
Topic
Board Mining (Altcoins)
Re: Can´t find the sweet spot with my GPU - Help wanted: evga 1070 SC Black edition
by
forstik
on 11/08/2017, 08:46:00 UTC
Hi everyone.

I recently got my first rig up and running, but i'm having problems finding the sweet spot for good hashing rates.
Is there anyone who can give a quick glance and take a look ?

This is my typical hashing rate for zcash:
EVGA GTX 1070 SC Black Edition, Micron mem.
Zec Miner 0.3.4b

GPU0: 398 sol/s, temp 62C
GPU1: 409 sol/s, temp 53 C
GPU2: 402 sol/s, temp 59 C
GPU3: 409 sol/s, temp 53 C
GPU4: 411 sol/s, temp 57C
GPU5: 339 sol/s, temp 61 C

In afterburner my settings are:

Power: 73%, Core: +114 and Mem +334

The system:

Z170A gaming pro carbon, 8 gb ram, 120 gb ssd.
Cosair HX1000 that powers MB, CPU and GPU0,GPU1,GPU2 & GPU3
Cosair VS 550 that powers GPU4 & GPU5

My hashing rate is lower than expected and I would love to get it up, to a point where payback period is less than a year Wink

Is there anyone out there who can help me ?
What timings ? What to do ? what to look for ?

Any help would be very appreciated

I am running those on a system and am running them 85% +120 Core +700 Mem 75% fan speed. That is giving 440-450 Sol/s at 120-130W. It stays at the 3.5 Sol/W range with those settings.

73% power is too low for these single plug 1070s trying to get a good OC and you wont be able to do a high Mem if you keep the power that low.

That system is 4 1070 Black SC 4 1070 SC z270-A 8GB Ram 120 GB SSD, 2 850W Power supplies.

I have MSI GeForce GTX 1070 GAMING X 8G and I achieve 450-460 Sol/s easily at 85% +90 Core +645 Mem with EWBF's CUDA Zcash miner. This card can take a lot more punishment than my other 1070s from ASUS but there are diminishing returns in further overclocking.