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New Graphics card slows down
Posted: Mon Mar 12, 2007 10:26 pm
by UBT - Mikee
Just got a new(ish) graphics card. All installed and drivers updated but something didn't seem right with BOINC. Ran benchmarks and they had dropped from 1800/3300 to 1800/1800 which I though was weird - didn't think a graphics card would cause that.
Anyway, after going through various bits and pieces I disabled the secondary graphics adaptor and after a restart the benchmarks are back up to what they were.
Just as well I don't use 2 monitors!
Posted: Mon Mar 12, 2007 10:57 pm
by UBT - Halifax-lad
Sounds about right, I assume some of the CPU power would have to be used in conjunction with the graphics card in order to support two monitors
Posted: Mon Mar 12, 2007 11:22 pm
by DJH@GB-Ro
I have a dual monitor set up :?
Posted: Tue Mar 13, 2007 6:42 am
by UBT - Mikee
UBT - Halifax--lad wrote:Sounds about right, I assume some of the CPU power would have to be used in conjunction with the graphics card in order to support two monitors
I wouldn't have thought it would have made that large of a difference though. If anything I'd have expected the benchmark to get better as it's a newer card with more memory so would have taken less processing power from the main board rather than more.
Might be interesting to see if anyone else has a dual output card and one monitor and seeing if their benchmark (and output) changes as much if their secondary output is disabled. (Windoze XP home = Start >settings >control panel>admin tools>computer management>device manager>display adaptor>right click 'secondary'>properties - 'disable device'. Make sure that the monitor used
is your primary device otherwise it could get a bit dark!) Anything you do is at your own risk - make sure you backup etc....etc...
Posted: Tue Mar 13, 2007 7:43 am
by DJH@GB-Ro
I turned off my secondary monitor and my benchmarks dropped hugely!
Before:
Measured floating point speed 1257.82 million ops/sec
Measured integer speed 1518.87 million ops/sec
After
Measured floating point speed 1216 million ops/sec
Measured integer speed 1033 million ops/sec
I'm turning the secondary monitor right back on!
Posted: Tue Mar 13, 2007 7:45 am
by DJH@GB-Ro
Both monitors on again, up to:
Measured floating point speed 1249 million ops/sec
Measured integer speed 1562 million ops/sec
Posted: Tue Mar 13, 2007 7:49 am
by Gary
If you're talking about the Measured floating point speed & integer speed, mine dropped too when I put in a new hard drive & optical drives last week, but soon returned to near what it was.
Posted: Sat Mar 17, 2007 11:35 pm
by UBT - PiezPiedPy
The only time I get probs with extra cpu usage when running two monitors is when I play games that have a heavy gfx load such as Doom3 of BF2142
Boinc projects don't seem to be affected
