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Discrete Voltage Setting Vs. Offset Voltage setting

post #1 of 3
Thread Starter 
Got a question for any of you who have knowledge or experience in motherboard mgf and the inner workings of how power is diatributed across the VRMs and the mobo.

I have come across a curious detail when OCing with a sub optimal budget board and have a hypothesis as tobwhats going on but no clue if its plausible.

Basicly the short of my situayion is usuing descrete voltage control...ie, setting the voltage to a specific number will eventually cause instability and throttling once i reach a certain point. This is almost certainly due to VRMs overheating in my case.

The curiousty is that i can achieve the exact same voltage through a combination of discreete manipulation, but also using a slight viltage off-set to supplement. This gives me 100% stable results with no throttling ot instability.

My hypothesis is that these two settings may be directing the same amount of voltage through different areas of the board. And in essence spreading the load so to speak. I am curious if this has any validty.

My analogy is like this...

Descrere is like trying to force more water through a single hose to fill a tub. Eventually you oversaturate wjat the single hose can handle in terms of flow and it bottle necks.

However, using the combined method is like using two hoses. You push the same amount of water but the second source allows for more flow before any one gets saturated.
post #2 of 3
How does your BIOS allow manual and offset voltage control at the same time?
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AMD FX-8320E @ 4.6 GHz +0.356250v offset Asus Sabertooth 990FX Rev1 eVGA GTX 970 SC ACX2.0 Patriot Viper Xtreme 2x4 GB 1600LL @ 1866 9-11-... 
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AMD Box
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320E @ 4.6 GHz +0.356250v offset Asus Sabertooth 990FX Rev1 eVGA GTX 970 SC ACX2.0 Patriot Viper Xtreme 2x4 GB 1600LL @ 1866 9-11-... 
Hard DriveHard DriveHard DriveCooling
Samsung 840 EVO WD Black 1 TB 32MB cache FALS WD Blue 1 TB 7200rpm EZEX Corsair H80i 
OSMonitorKeyboardPower
Windows 10 x64 HP LP2475w Logitech Illuminated Corsair TX750  
CaseMouseAudio
You don't want to know Logitech G9x Creative Sound Blaster Z 
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post #3 of 3
Thread Starter 
The manual setting allows you to adjust an exact voltage or leave it on auto...

The offset allows you to take whatever value you have locked in and add or subtract a set value from it...

The combination of the two correctly displays in software utilities when you boot into windows.

Example:

Lock in voltage at 1.250v

Adjust off set to +0.100

CpuZ will show approximately 1.350v in windows while idle.

The funny thing is you get very different stability results when using the offset to get to 1.35 than when you just set the value to 1.35 with no offset used at all.
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