Can't get a decent hashrate on 1660S/3070TI

[pcmaster24]

hey guys, i’m mining ETH with the rig below, I have 2 recent problems

EDIT : 1660 Super went to 34Mh/s thanks to the bios below . the 3070TI are still underperforming , any idea ?

1- I can’t get the 1660Super over 24Mh/s, no matter which miner or OC i use. i used to get a stable 31Mh/s couple weeks ago !

2- 3070TIs are stuck under 45Mh/s each, it can hit >5x but the LHR unlock always kick in and put me back .

i tried T-rex, nbminer, lolminer, phoenix .i reverted from nvidia driver 495 to 470, but still no luck.
any help/advice is more than welcome ! thanks

[m0raca]

For the 1660s -

The most I have been able to get is 33 but that was not fully stable. This is stable at 32

[m0raca]

Oh snap… Hynix memory!

Flash the bios with - Palit_GTX1660SUPER-6G-90.16.59.00.28.rom (Only on the Hynix memory 1660s)

Same OC settings you should get 35…

Full disclosure, the other 1660s pictured earlier is an MSI. I applied the same rom to the Samsung memory Zotac 1660 Super and it had 0 effect

Hope you get the 35!

-m0e

[pcmaster24]

Thank you so much !
i never though changing the Vbios was so easy and useful
I got over 30 with stock settings !

[bmf]

I can help you a lot but 55/56mhs on 3070ti fe
1200 1000 225
With last T-REX

[m0raca]

No problem, happy to help.

I myself am on the hunt for the secret 35 hash bios or OC settings for the Samsung memory…If anyone knows that magic, I am game to hear.

I was able to get them to 33, this rig needs another tuning sessions to determine which way I need to split the clockage to determine which cards caused the miner restart in this chart.

1215 2160 is a tune down due to that restart. Previously was 2280. I was able to get semi stable at 2300 on the memory.

I may give this clock a go with the upped wattage.

Oh yeah and t-rex is MT 3

Be advised you will get the err on fans, don’t panic and keep mining

-m0e

[pcmaster24]

if i can find a similar Bios for the micro 1660s it would be a nice bonus

I’m still struggling with the 3070TI, the LHR unlock keep tuning to 60 and below, and it’s still getting locked and with RVN couldn’t get past 25Mh/s…

any help guys please !

[keaton_hiveon]

your core clock is too low, 1300/2800 trex 24.7 gets me 60-61mh on my 70tis