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Author Topic: Vista x64, Radeon 6990, locks up  (Read 826 times)
martona
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June 27, 2011, 03:26:44 AM
 #1

Ok this is strange:

When I have load on the card (poclbm) and I try to open Catalyst Control Center or GPU-Z to check the temps, the computer locks up hard. When there's no load, I can open CCC or GPU-Z no problem. Poclbm alone doesn't cause problems, the computer is mining happily at 650+ mhash (-f 140).

Anyone run into this?

Using latest versions of everything (Catalyst 11.6, etc) on Vista x64.

Not being able to check the temps is a tad annoying.
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FreeJAC
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June 27, 2011, 03:33:13 AM
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what about if you load up GPU-Z first and then try guiminer?

Try -v -w256 -f60 (whats the point of having f higher than 60?)

How many watt power supply? (assuming no OC going on?)

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martona
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June 27, 2011, 03:49:41 AM
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The flags you recommended did not make a difference.

If GPU-Z is running when I start guiminer then there's a lockup. It doesn't matter what comes first, CCC/GPU-Z or poclbm, but they can't seem to coexist.

Also, just like this guy here:

http://forum.bitcoin.org/index.php?topic=22575.0

...the computer also hangs immediately when I start to play a video (say, youtube).

No OC whatsoever. PSU is 1500 watts, and the 6990's 12v inputs are hooked up to separate PSU ports. I can load the CPU with a benchmark while mining and there are no issues, so it's most likely not a wattage problem.
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