when overclocking on a msi g45 mobo, should i use dynamic mode or fixed mode ?

[ithshaam]

hi, ive just overclocked my i5 4670k on msi G45 mobo. its a 4.2GHz and ive ran prime 95 for hours and evrything looks good. Voltage goes up to 1.246. in the bios i didnt change anything else apart from CPU ratio and enabled XMP profile. i also changed the CPU Voltage mode to adaptive mode. Could some plz tell me if this is okay ?

another question, right by the CPU ratio there is a option to change from dynamic mode to fixed mode. which one is better. it was originally on dynamic mode.



Thanks in advance guys

 

[Immaculate]

For the Cpu voltage, dynamic is the same as auto. For the clock speeds, fixed means it stays at 4.2Ghz, dynamic means, 3.4-4.2Ghz or whatever the OC is.
Stock settings it would be 3.4-3.8Ghz.
You should be able undervolt the CPU a little in fixed mode. I had that same CPU/BOARD. I think It was at either 4.0 or 4.2
IIRC the voltage was something like 1.10

 

[ithshaam]

For the Cpu voltage, dynamic is the same as auto. For the clock speeds, fixed means it stays at 4.2Ghz, dynamic means, 3.4-4.2Ghz or whatever the OC is.
Stock settings it would be 3.4-3.8Ghz.
You should be able undervolt the CPU a little in fixed mode. I had that same CPU/BOARD. I think It was at either 4.0 or 4.2
IIRC the voltage was something like 1.10

thanks for your quick response. should i change the dynamic made to fixed mode and undervolt ? and with the voltages, at the moment its set on auto, what should i change that to so i can set the voltages manually, what would be a good voltage to go down to?

in cpu ratio there are two options (dynamic mode and fixed mode) which one is best for me ?
in cpu core voltage mode is set on adaptive mode (there other two options there are override mode and auto) what should i set that to. and what voltage would be safe for me to go down to fom 1.246 if i was to enter it manually.

thanks

 

[TheGolfingPablo]

Linus posted a great video on this. Although it was using an ASUS mobo and there its the 'adaptive' mode.
Basically he explained to set everything to manual to get your overclock stable and as high as possible. Then once that was done to reenter the bios and turn on the adaptive setting.
This way when you needed the power it would ramp up to your stable OC but in idle state or like browsing etc would go back to stock settings to save on power, heat and noise etc.

(I'm waiting on ram to finish my build and will be taking this approach).

 

[Immaculate]

Just start with a low fixed voltage, I just went as low as I could until my computer would stop starting into the BIOS, then I would raise it just a little by 0.010 volts or so, you could even do it in 0.005 increments. Your PC probably won't run Prim95 for very long on the low startup voltages, so you would want to raise it, incrementally until P95 runs stable for a couple hours.