Low hashrate on GTX 1070

[PaulieLUL]

Hello, my miner is crashing using single EVGA GTX 1070 FTW with the default nvidia.txt settings : "threads" : 64, "blocks" : 45, "bfactor" : 6, "bsleep" : 25, I am getting following error:

I tried to play with the settings and I ended up with: "threads" : 32, "blocks" : 15, "bfactor" : 8, "bsleep" : 25, which gives me about 530 H/s even tho my GPU should do 700 H/s no problem

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I am using default nvidia.txt settings on my second PC with GTX 960 and the miner isn't crashing and everything works fine there.

[marwi1]

For GTX 1070: "gpu_threads_conf" : [ { "index" : 0, "threads" : 64, "blocks" :45, "bfactor" : 6, "bsleep" : 25, "affine_to_cpu" : false}, ], about 769 H/s

[Fomych]

I have crashes by "threads" : 64, "blocks" :45. What should i do to have a good H/s ?

[lug-gh]

"threads": 15, "blocks": 30, "bfactor": 6, "bsleep": 25, "affine_to_cpu": false

2050/4400 Mhz = 680 H/s

[Fomych]

i have by "threads": 65, "blocks": 40, 610 H/s and by "threads": 15, "blocks": 30, under 550 H/s.

[lug-gh]

what are your cards core and mem clock?

change blocks to 60, it made my card do 710 H/s

bfactory 8 bsleep 100

[Fomych]

Core Clock : Boost: 1822 MHz/ Base: 1620 MHz in OC Mode Boost: 1784 MHz/ Base: 1594 MHz in Gaming Mode Memory Clock: 8008 MHz

And if i change to more than 40 blocks it crashing

[lug-gh]

Do you have Afterburner or any other tools to overlock your card?

Mine runs at 2050Mhz Core Clock @ 931mV (undervolted) and 4404MHz Memory (or 8808MHz as you'd say) -> http://www.overclock.net/forum/74-graphics-cards-general/320291-why-does-gpu-memory-clock-show-up-1-2-a.html

Overclocking the RAM ist a must for cryptonight algorhythm.

[grtbaldini]

I had a windows update happened and it killed my rig. I had let it update the important things and thought I was good. It updated that Fall creators update. Rig running since Dec, Then this past Monday boom! So my hashrates on my 1070's are hitting like 9.0 mh. I can't figure it out after I had to reformat and install 10 again. Sorry to hijack your thread. It came up in my search

[marwi1]

Card Palit GTX 1070 DUAL. 1898/4657 MHz Windows10 set bfactor=7, set launchParam=--launch=75x45, set bSleep=15 The card charges approx. 100W Temperature about 50 degrees Celsius

[lug-gh]

How can you Hit 4500MHz+ without getting fragments/picture errors on the screen in windows?

set bfactor=7, set launchParam=--launch=75x45, set bSleep=15

gives me 720 H/s at 2050/4404

[Fomych]

With this setings set bfactor=7, set launchParam=--launch=75x45, set bSleep=15 I have 611 H/s. I will try to boost my card, maybe it will help

[lug-gh]

Don't use 75x45, use 15x30 or 15x60, as the 1070's SMC limit is 15. Choosing 75 will not improve performance, it will just eat more ram.

[marwi1]

You're right that 75x45 uses the entire memory of the card. With the setting of 15x60, the performance drops to 645 H / s.

[Fomych]

15x60 610 H/s =(