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What could be the reasons of incompatibility? Up until now I assumed NVMe would work on any PCIe bus as long as the host isn't too old.

I am almost sure that it's not the seller, but the R440. For whatever reason this particular model has very high failure rate. One of our clients had 4 R440 failed within 14 months time period, for various reasons. And it was 4 out of 4.

Very impressive setup! And very neat cabling as well. What's running on those 36-bay servers? Do you use any RAID? What OS does the farming machine run, Windows or Linux? Sorry if too many questions, I am genuinely curious:)

RandomX hashrate is different from cn/r hashrate. Network hashrate is about 3x, but CPU hashrate is typically 7x-10x, profitability is actually up quite a bit.

RandomX is so strange. I have 2 identical servers with dual E5-2678 v3, same Ubuntu 16.04, same kernel, same hashrate of 1170H/s with cn/r, but with RandomX, xmrig-5.0.1, hashrates are 3540H/s and 4470H/s respectively. I checked every config I can think of, hardware and software, don't see any...

How does rx/loki hashrate translate to cn/r?

Can these E7-8800 v2 and E7-4800 v2 be used with motherboards that support E5-2680 v2? They are all LGA2011.

You can swap in IOM6 and the shelf will become DS4246 under Netapp Ontap. I am not sure about PC environment though.

There are a lot of fake HP smart carriers out there, they will fail even genuine HP drives.

Do you configure multipath?

I am running STH universal docker, which has xmrig 2.5.2. It's been working perfectly fine, but starting yesterday, I noticed that the shares got rejected by Nicehash for as much as 30% with error "Share above target." Did anyone else have similar issue? I see there is xmrig 2.5.3 released, do...

The driver won't even install on server OS, such as Windows 2016.

I never had any luck with AMD drivers on Windows 2016 server. The only driver that can be installed is the blockchain driver, everything else will simply complains that there is no AMD device.

@Patrick Any chance servethehome/monero_xmrig can be updated to xmrig 2.50? I know there is a universal image now, but really like the flexibility of dev fee of this original image. Thanks!

Thanks for the detailed report. Are you planning to return the bad ones?

Will it work with nicehack?

I had to remove '--runtime=nvidia' so it will pull the docker image. But then I got this: ./ccminer: error while loading shared libraries: libcuda.so.1: cannot open shared object file: No such file or directory Adding back the runtime variable gives error 'Unknown runtime specified nvidia'...

Does it require the install of nvidia-docker2 first?

Can't wait:) Will we be able to monitor all the miners as well?

I have a dozen spare computers doing CPU mining. I use Patrick's xmrig docker image, which works great. I use a start script on each machine so I can switch among different coins, pools, etc. And since the CPU's are different, the script will set cpuset-cpus accordingly on each machine. So far...