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Extra AVX Voltage

1.3K views 4 replies 4 participants last post by  Desolutional  
#1 ·
When AVX is off, a pass all my stress testing. I'm looking for advice to set up the voltage in such a way, hopefully I explain this correctly, that I need an offset for the voltage or need to use adaptive voltage. I want the voltage to be there if it's needed but if there's no AVX instruction, it goes back down to the voltage that I set it to. How would I set this up effectively?
 
#2 ·
I think the processor chip does this automatically. At least it did with my skylake arch processors. I would get a boost when avx kicked in.
 
#3 ·
It will automatically add voltage for AVX instructions unless you disable SVID support and use manual voltage.
 
#4 ·
Or like... you know, use AVX offsets? As they are intended to be used?
If you're dropping down the voltage when there are AVX instructions anyway, that's no different than capping performance and dropping clocks.
 
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#5 ·
AVX offset affects mixed pipeline requests as well, so it is useless for gaming/light AVX workloads. A better solution would be using the Turboboost Power/Current limits and/or modifying throttle temperatures.

With a power/current limit the limit only kicks in when running artificial workloads like Prime95, most gaming/productivity should stay below this limit.
 
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