Drop in ETH Hashrate when Dual Mining TON after Jammy Jellyfish upgrade

[DannyDaCat]

OS: 22.04 LTS Ubuntu (Jammy Jellyfish) Graphics Card: RTX 3090 Driver: Nvidia 510.60.02 LOLMiner: 1.48 GreenWithEnvy Overclocker v0.15.5 Memory: 1200MHz GPU: 265 MHz

Hello all,

I had been Dual mining ETH+TON successfully using Ubuntu 20.04 LTS (Focal Fossa) with average hash rates as follows:

ETH 118/119 Mh/s TON: 2100 Mh/s

Normally what would happen when kicking off LOLMiner during the calibration period the ETH would bump up to 121 to 122 Mh/s while TON was at 0 and would then go down once TON started to increase but would stabilize at the above numbers.

Now I've noticed after I did a fresh install of Jammy Jellyfish during the calibration period ETH would start off at 121/122 Mh/s while TON was at 0 but as Ton would increase ETH hashrate would drop dramatically, down to around 98 Mh/s and then increase to and stabilize at about 105/106 Mh/s and TON would stabilize around 2114 Mh/s

Nothing has physically changed at all on my setup, same cooling, same physical layout, only thing changed was the OS itself.

I've played around with the overclock settings but nothing I do seems to provide the output I had on the previous version of Ubuntu, don't know why the new OS would be affecting LOLMiner ETH hashrates so dramatically, going down from an average of 119 to 105 is pretty painful.

Any thoughts, suggestions, etc? I'm likely going to go back to Focal Fossa to see if I can restore those numbers, but happy to troubleshoot. Screenshots below... Many Thanks for everything everyone does!!!

Before Focal Fosa: ETH: 121/122 Mh/s TON: 2100 Mh/s

After Jammy Jellyfish: ETH: 105/106 Mh/s TON: 2100/2200 Mh/s

[Kostas-13]

Try this: during calibration set the core clock a bit lower.. when completed take it up 20-50mhz. Simular behavior happens to me with 3080s under win10 and this trick solves it for me. For keeping things simple I just set the core clock when miner starts @Lolminer.. and then when it finishes calibration, I refresh/re-apply with 3rd party OC software the default OC.

[DannyDaCat]

Thanks for the tips, unfortunately the resulting hash rates ends up being LESS when I set the core clock lower before calibrating and then increasing it after the fact.

If I try your approach I ended up with a hashrate of about 100 Mh/s on average, whereas I get the new average of 106 Mh/s when I apply everything ahead of kicking off LoLMiner. I tried a few variations and end up with the same results, lower hashrates when applying the OC after the fact, as opposed to in advance which is my normal process.

[Kostas-13]

Weird :/ Sorry mate.. For me on win10 setting the clock lower just limits both, but when I raise clocks eth goes up, Ton not so much to cripple the performance.. and stays like this for days.

Now the only thing I can think of by looking your miner is the mem temp. I haven't got any experience with 3090 but I know it's harder to get them down because they have mem chips at the backplate too. On 3080s re-pad makes wonders, but it's painful to do so. If I were in your place I would re-pad (unless it's evga cause they use thermal putty and not pads) + maybe add small heatsinks at the backplate + if not good enough even a fan at the backplate. For quick testing if temps is the limit factor, set the fan speed at 100% if eth goes up.. work on temps then.

[Kostas-13]