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Thamir Ghaslan

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Message 39915 - Posted: 24 May 2010, 16:24:37 UTC

Any ideas or similar experience for having hybrid cards?

At catalyst control center, the 5970 is fully throttled in regards to core or mem MHZ. slider 750 mhz core, 500 mhz mem, correctly reflected under current values.

The 4870x2 however, has been locked down to 500 MHZ core, and no amount of overdrive tweaking can increase that value!
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ProfileThe Gas Giant
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Message 39921 - Posted: 25 May 2010, 3:00:56 UTC

Sounds like the cards are "stuck" in low power mode. Is BOINC crunching happily on all GPU cores - ie does BOINC see 4 GPUs?

I'd also close CCC and use MSI Afterburner.

I have a 5970 and a single 4870 crunching happily away and only see them downclock when they run out of work.
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Thamir Ghaslan

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Message 39923 - Posted: 25 May 2010, 8:04:11 UTC - in response to Message 39921.  

Sounds like the cards are "stuck" in low power mode. Is BOINC crunching happily on all GPU cores - ie does BOINC see 4 GPUs?

I'd also close CCC and use MSI Afterburner.

I have a 5970 and a single 4870 crunching happily away and only see them downclock when they run out of work.


Thanks for the neat after burner utility. Great graphs! :)

I've discovered the problem from CCC, right click, 4870, 3d setting, force maximum performance clocks. it now locked the 4870 to 750 mhz.

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ProfileThe Gas Giant
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Message 39925 - Posted: 25 May 2010, 10:19:23 UTC - in response to Message 39923.  

Sounds like the cards are "stuck" in low power mode. Is BOINC crunching happily on all GPU cores - ie does BOINC see 4 GPUs?

I'd also close CCC and use MSI Afterburner.

I have a 5970 and a single 4870 crunching happily away and only see them downclock when they run out of work.


Thanks for the neat after burner utility. Great graphs! :)

I've discovered the problem from CCC, right click, 4870, 3d setting, force maximum performance clocks. it now locked the 4870 to 750 mhz.


Excellent!
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Message boards : Number crunching : 5970 + 4870x2 = downclocked 4870x2

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