Northbridge Voltage

I have my 1055t running at 3.93GHz at the moment, and I'm desperate to reach 4GHz stable. So I have heard that increasing the NB voltage will help stability. But when I look in the BIOS, there are two options:

"CPU/NB Voltage"

or just

"Northbridge Voltage"

So which one is is that I need to increase?

And also, I don't know what the stock NB Voltage should be on my M4A89GTD PRO motherboard?

Hope you can help, thanks :)

I take it you have already raised the vcore, correct?

Beehoo said:

I take it you have already raised the vcore, correct?

Yes, its at 1.47v to get to 3.93GHz. I pushed it up even further but was still unstable at 4GHz

Boov said:

Yes, its at 1.47v to get to 3.93GHz. I pushed it up even further but was still unstable at 4GHz

you try changing the NB frequency to at least 2400Mhz?

Wha

Skawty said:

you try changing the NB frequency to at least 2400Mhz?

What Northbridge voltage should I put it at to get it to 2400MHz?

Boov said:

Wha


What Northbridge voltage should I put it at to get it to 2400MHz?

on my Gigabyte mobo, i have it at the default 1.3v

Skawty said:

on my Gigabyte mobo, i have it at the default 1.3v

Oh OK thanks, one last question, is that the CPU NB Voltage or the Northbridge Voltage?

Boov said:

Oh OK thanks, one last question, is that the CPU NB Voltage or the Northbridge Voltage?

oh i forgot your cpu is not blk edition.

you have to change the bus clocks huh?

well cpu/nb volt is the one you want to bump, try bumping it up one setting at a time.

Skawty said:

oh i forgot your cpu is not blk edition.

you have to change the bus clocks huh?

well cpu/nb volt is the one you want to bump, try bumping it up one setting at a time.

Thanks :) Non-Black Editions are more tricky to OC :( I will have a go tomorrow and probably post the results.

BTW, I'm a long time subscriber of your channel :D

Hmmm...

I had a go at upping the voltage to 1.3 and 1.325

Even at stock speeds (2000MHz), it BSODs in a prime blend test :(

Tried it at 2500MHz, same result, although it is stable with a small FFT