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Author Topic: Mhash rate lower when in display power saving?  (Read 980 times)
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August 14, 2011, 09:01:26 AM

Using Windows 7 with GUIMiner.  I've set most of my power saving options to sleep "never".  However I still have "Turn off the display" set to 20 minutes and my computer also goes into locked mode.  When I wake up the display and immediately look at GUIMiner it shows the Mhash rate as around or below 200 Mhash/s.  Then within a few seconds it goes back up to it's normal 240 Mhash/s, where it stays if I am using my computer.

So now I'm wondering if I'm not getting my full hash rate when I leave my computer running and I'm not actively using it.  Are there some specific settings I should have in windows & power options or elsewhere to ensure I'm getting my full hash rate?  Is there a way to know what your hash rate is when your display is off?
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August 14, 2011, 10:27:44 PM

I've similar problem in my laptop. Normal hash rate is 120Mh/s, but when it turns of the display it drops to 60Mh/s. I tried changing all power settings to use always best performance but it didn't help.
I ended up with a workaround with - very dark screen dim (instead of turning off) and changing the close lid setting to not go to sleep (it will turn of screen without a hash rate loss).

I also would appreciate if If someone could point to the right way to deal with this thing.
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August 15, 2011, 09:57:46 AM

Are you using Phoenix Miner with high aggression?  Anytime you open or move around windows your hash rate will be lowered.  You're better off putting your power-saving profile to high performance and turning every option to Never, including your monitor sleep time.  Lock on wake-up is just annoying and will definitely slow your hash rate using high aggression with Phoenix miner.

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