thanks to both for the advice... i figured that might be a bit much for this a 1200w PSU.
I tried only changing core clock to 1100 on the 5 MSI's (not touching the orphan Nitro at this point) and got a blue-screen about 2 minutes after starting Claymore 7.4. After reboot, decided to go with 1125/1925 and also took an additional -2 off their voltage offset each. This resulted in only about 1-2% drop-off in HR for each coin but dropped my power useage by about 75w, so sitting right around 980-985 at this point (with DCR at 34), which I feel much better about. I will play around with it more over the weekend though just in case I can get better results. I suspect I drop the voltage offsets a bit more, especially on the 2 GPUs that have 1160 default value there. I would love to get it down close to 900 so I can run XMR CPU again on this rig again, but I think DCR is more profitable than CPU XMR at this point, but I will do that calc tomorrow after running DCR for 24 hours.
I would love to learn xmr cpu mining links and bat files would be helpful if you have them .
Sure Phil, happy to help out!
Claymore XMR CPU 3.5 -
https://bitcointalksearch.org/topic/claymores-cryptonote-windows-cpu-miner-v40-647251The bat file is actually very simple... only need to designate your pool (-o) and XMR address (-u). Here is mine for Dwarfpool, which has been the best for me:
NsCpuCNMiner64.exe -o stratum+tcp://xmr-usa.dwarfpool.com:8050 -u 46shm7maKo9Ev35kJiAoW6ZsWSxGWkNeuBrfgcN49g9JJWQe7yE513SGRiqsper1uG9T1xFDFH3inMS
G7hrKW2oMHGrTDez -p x
The other possible thing to put in the bat file would be how many threads you want to use. It auto-selects otherwise, which works for 2 of my 3 machines, but the 3rd with the i7-6800k 15MB cache, I need to add the "-t 7" command in the bat file to maximize HR. Optimal thread useage for this miner is based directly on how much cache your CPU has. That 6800k has 15 and each mining thread requires 2MB, hence my -t 7 command to use 7 threads (of the 12) = 14MB of cache. Exceeding that 2MB rule will actually reduce speeed. I tried to use 8 and 9 threads and both resulted in worse performance. So, your CPU's cache divided by 2 is what your -t command should be.
The other thing to note with this miner is that at least the first time, it needs to be launched in Admin mode. But, i actually just launch it that way every time. And, the .exe file is what needs this, so, since it is launched through the bat file, you actually need to go into the file properties of the exe file and set it to launch as admin. This should enable your miner to start in Fast Mode. If it does not, let me know and I can help trouble shoot. Hope this helps.
