overclocked my old 4790k cpu but cannot get it to ramp down voltage at idle

martian1

martian1

martian1

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20 Oct 2014
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Hi all hoping for help with this my motherboard is an asus Maximus V11 hero with 16gb of trident 2400mhz ram at 1.65v the cpu is a haswell 4790k basically all bios setting are pretty much auto with speedstep turbo mode etc enabled all I have done appart from set memory as it should be is increase cpu ratio to 45 and found a stable overclock at 1.196v input manually, temps etc pretty good but I cannot get cpu vcore to reduce at idle I have windows 10 set to balanced at 5% min 100% max the cpu speed drops ok but not the voltage its stuck on my manual setting. I have tried using offset and adaptive mode but as soon as I run a stress test the vcore shoots up to 1.254v or higher no matter what settings I input ! I have read about this cpu causing issues with motherboards at release and some have suggested a bios update which I am reluctant to do again my version is updated to 3003v which is only 2 revisions away from the latest available.
Sorry for long post but I wanted to try give as much info as possible. Help very much appreciated

Thank you
 
Thanks for your help I think you are correct trying to set anything other than a fixed voltage via adaptive or offset results in a crazy high core voltage when at full stress at one point it was over 1.35v way to high compared to a fixed voltage. I don't think I will bother flashing the bios as it's not a huge problem more an irritation. I have tried just setting bios back to default and using the eazytune in built overclocking feature in bios although not the highest overclock it did let the vcore and cpu speed ramp up and down better with Max voltage around 1.25v undecided if I will do as you did and leave it fixed or settle for what it auto tunes it at.
Cheers
 
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