Nicehash is the easiest way to get into mining, but make sure you also install Afterburner and GPU-Z so you can tweak your card..
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Nicehash is the easiest way to get into mining, but make sure you also install Afterburner and GPU-Z so you can tweak your card..
What tweaks would you recommend? I'm getting ~43 MH/s on current settings with my LHR 3080 and that will pay back the cost of the GPU after about a year and a half of being constantly on and not taking into account electricity costs, so I'm keen to improve that.
Mining ETH doesn't use a huge amount of GPU core, but it does like fast VRAM. So, you can dial back the the GPU core speed & voltage and ramp up the memory frequency. **There is an option in Hicehash Quickminer to set a separate performance profile that you can activate when you want to game.**
Keep an eye on your Memory Junction Temperature when mining - Nicehash reports it but you can monitor it in HWinfo - I don't know how LHR limits hashrate, so it might be ok, but high VRAM temps are an issue with non-LHR 30 series.
My 3090's VRAM was bouncing off the 110 degree limiter and would only drop down (marginally) below that if I dialled back the hashrate to ~90MH/s. After replacing the thermal pads and making no other changes, the VRAM dropped to 90 degrees while hashing at 120MH/s. Adding a few heatsinks to the backplate and improving chassis airflow gets it down to 80 degrees. GPU core sits around 52 degrees.
BTW, your ROI forecast could fly right out of the window come December. The planned difficulty increase in ETH will likely make it impossible to mine economically. Of course there will be other coins - and Nicehash will switch you to the next most profitable coin - but the profitability of that compared to current rates isn't completely clear. RVN is a possible option and might not be a million miles away from Ethereum in that regard but it uses more GPU core during mining, which means more heat and electricity cost, so it it won't be anywhere near as efficient.
Not sure about the LHR cards as mines an FE, but I run -500 core, 70% limit, +1050 on the RAM with the fans locked at 50%, that see's me just over 90MH/s.
Make sure you have GPU-Z on there as you can watch the memory temps, I get low 90's but I've swapped the pads on mine as I was seeing 105oC which is a bit close to the 110 throttle limit and when not mining I'm seeing a 20oC reduction in memory temps so deffo worth doing if you're up for the job.