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Hello
I'm having issues with rather new 990XA-UD3. Motherboard by itself increases voltage when I utilize cores.
It is set @ bios : 1.45V and during load testing only two cores voltage bumps to 1.472 V it is not huge increase.
I have done some research about this:
I used Linpack to test vboos on 990XA-UD3.
Forcing setting affinity to use one core gives me 1.456 cores.
Forcing to use two cores gives me 1.472V on cores.
Forcing to use three cores gives me 1.488V on cores.
Using 4 cores gives me 1.504 V on cores.
Using 5 cores gives me 1.520 V on cores.
Using 6 cores gives me 1.536 V on cores.
So board during load increases voltage by 0.016V if it detects more current is drawn from the Power Section per core.
It is strange and I get from idle to full load differience of 0,08V that is HUGE voltage increase and IMO it should not happen. And now i would like to get some answers why that happens, and how this could be fixed.
Such thing never happened on my last board which was 790XT-USB3.
I do not suffer from vdrop, but such vboost negatively affects on PC's health during load - and be sincere - PC's are designed to be fully loaded ;) Such vboost increases power consumption and temperatures, and makes difficult to overclock.
Any help?
I'm having issues with rather new 990XA-UD3. Motherboard by itself increases voltage when I utilize cores.
It is set @ bios : 1.45V and during load testing only two cores voltage bumps to 1.472 V it is not huge increase.
I have done some research about this:
I used Linpack to test vboos on 990XA-UD3.
Forcing setting affinity to use one core gives me 1.456 cores.
Forcing to use two cores gives me 1.472V on cores.
Forcing to use three cores gives me 1.488V on cores.
Using 4 cores gives me 1.504 V on cores.
Using 5 cores gives me 1.520 V on cores.
Using 6 cores gives me 1.536 V on cores.
So board during load increases voltage by 0.016V if it detects more current is drawn from the Power Section per core.
It is strange and I get from idle to full load differience of 0,08V that is HUGE voltage increase and IMO it should not happen. And now i would like to get some answers why that happens, and how this could be fixed.
Such thing never happened on my last board which was 790XT-USB3.
I do not suffer from vdrop, but such vboost negatively affects on PC's health during load - and be sincere - PC's are designed to be fully loaded ;) Such vboost increases power consumption and temperatures, and makes difficult to overclock.
Any help?
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