Ninjastic
PostEdited versionsQuotes to this post
Post
Topic
Board Mining (Altcoins)
Re: PhoenixMiner 2.9e: fastest Ethereum/Ethash miner with lowest devfee (Windows)
by
DireWolfM14
on 04/05/2018, 01:02:03 UTC
Quote from: UnclWish on May 03, 2018, 04:52:05 PM
Quote from: PhoenixMiner on May 03, 2018, 06:40:10 AM
Quote from: UnclWish on May 02, 2018, 12:58:22 PM
Who can say - why sometimes speed 1 of cards drops from 31M to 25M untill restarting miner?
  Sometimes it is just Windows messing with one GPU (probably the active one, if you have a display or display-emulating "plug" in it). In such cases the hashrate recovers within few minutes.
Yes, this is the active GPU with display connected in it. But speed didn't restores in 5 minutes... It's too long. Average speed drops significunt for me. It's need to do something with that. Until that I'll use Claymore miner, in wich no such problem...

I was noticing the same thing with only two GPUs  Trying to trouble shoot the issue I swapped their PCI positions and got the same thing, always GPU1.  Funny thing is I'm controlling the PC via Remote Desktop Connection, and when I first start RDC both GPUs are running ~32mh/s, then GPU1 drops about two or three mh/s.  I suspected the cause due to graphics requirements imposed on GPU1.  I installed an old video card in the first PCI slot and moved the Nvidias to positions 2 and 3, and now the issue is non existent.  Might be worth a try if you have a spare PCI slot and an old video card.