1660 Super Mining Efficiency droped

[kamo35]

Dear All,
I have just started to mine yesterday and I am facing a issues after around 8-9 hours of initial mining.

My Setup looks the following:
9X 1660Super cards (all running at 31,8mh/s)
TB250 BTC PRO
Pool: Ethermine
Miner: T-Rex

The first 9 hours of mining the mining rig was mining with 100% efficiency but later i have started to face issues and the efficiency droped to even 85%.

I tried changing miners but that did not help.

I noticed that am recieving a Fail saying Provided POW solution is Invalid! on GPU8

After a time long i see that the T-rex miner resets and there is a fail on GPU#8

I was thinking that maybe i should run on 8 Nvidia GPU’s but when i took out card nr 9 i was still facing those errors.

If there is anyone who has knowledge how to solve this issue let me know.

[Lukezen]

upload your Overview info so we can see what your setting are!

like this

[WK0826]

Hynrix (31.83~90mh) = core 930 / mem -1004 / PL 85 ( most card just use around 73~75watt , but some gpu will use abount 79~81 , so i set it to 85)

Samsung = i duno … i haven’t get any samsung memory yet lol , all micron and hynrix for me

Micron (31.51mh)= core 1035 / mem 1900 ( very depend of the gpu , just test which number stable for u) / PL 85

core clock number above 500 all become lock core speed ,for me all hynrix i have is 930 core , save around 5~7 watts for each card and duno why bump up my hashrate from 31.71 to 31.86~90 (solid and stable) so just find the lowest and stable core speed for ur 1660S

I using trex miner , and kernel 4

[asolis049]

Thanks Lukezen.

Your config for the GPU 1660 super is working for me.

[Lukezen]

No worries…

I’ve got some new setting if your chasing lower wattage

[MNCrypto]

Hi

Whats the significance of core setting? I am running core as 0 but everything else the same as you. I’m new to this just trying to understand the variables.

Thanks