Get the latest ATI driver. It doesn't have the CPU spinlock bug with multiple GPUs.
Bullshit. 
Topic: Which drivers and opencl ver are now best for mining? - page 2. (Read 12440 times)
Get the latest ATI driver. It doesn't have the CPU spinlock bug with multiple GPUs. The new Stream SDK is slower with some cards though. After installing the driver, revert back to the 2.5 SDK (or manually copy the DLLs to System32/SysWOW64 as described in this thread)
https://bitcointalksearch.org/topic/m.651989
https://bitcointalksearch.org/topic/m.651989
Hi,
I haven't updated my drivers since may - I have ATi 11.5 drivers and v2.3 ATi Stream SDK, there's the CPU bug and I need to use dummy plugs because I run my miners on Win7_64 Pro.
From which driver version there's no more need for dummy plugs?
Which versions don't have the CPU bug?
Which version is the fastest and most stable (=what also matters is not necessarily the total hashing power but the number of shares - sometimes O/C (even if the GPU doesn't hang or render stales) may even decrease the number of submitted shares despite the increase of total hashing power)?
I haven't updated my drivers since may - I have ATi 11.5 drivers and v2.3 ATi Stream SDK, there's the CPU bug and I need to use dummy plugs because I run my miners on Win7_64 Pro.
From which driver version there's no more need for dummy plugs?
Which versions don't have the CPU bug?
Which version is the fastest and most stable (=what also matters is not necessarily the total hashing power but the number of shares - sometimes O/C (even if the GPU doesn't hang or render stales) may even decrease the number of submitted shares despite the increase of total hashing power)?
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