Phenom II Overclocking Guide - Page 2 - Overclock.net

logan · 06-18-09

Quote:

Originally Posted by jimibgood

I have studied this in depth as well. Like Our members show, the majority use much lower than 2400 on the NB. Raising the NB with aftermarket chipset cooling will absolutely getcha a higher OC but as far as stock chipset cooling, Lower NB will definitely keep you cooler and stable. Pushing it is what gets a nice overclock. I have gotten over 2600 on NB and once 2800.... You may be onto something... I will increase NB voltage and see what I can get my NB up to just to see. Once I get a nice NB setting, I will go for another overclock.

Logan.. you need to get a life and so do I...LOL...

Kidding. I need you for this question. My bios has 2 Nortbridge voltages. NB/CPU and NB. I mess with NB and really get nowhere. The NB/CPU is where I get places but really could use some recommendations for settings. I can get over 2600 on NB with 1.30 NB/CPU voltage.

The NB voltage should be the chipset voltage. That is the voltage that you would increase to help with higher reference clock speeds (useful for OCin non-Black Edition processors). The NB/CPU voltage should be the actual NB voltage, which is what you will need to increase to get a large NB OC.

It seems like most high OC's will use around 1.4v for the NB/CPU voltage, so you might try that out and see how that goes. Also note though, that since the NB is in the CPU, that that will also effect the CPU temp.

From the link that I posted before.

Quote:

Memory controller clock speed also has a huge impact on system speed. Default on the 955 is 2GHX...there is just no sense in running this way...if you see reviewers doing this they are NOT getting the best from the system.
with 955 the multiplier for the memory controller (CPU-NB) is totally unlocked, this means default multi is 10...but you can push this UP and well as DOWN.
Try to consider the memory controller as just another processor and overclock it the same way...increase voltage to gain higher clocks but be aware that doing so injects heat into the system.

And

Quote:

Adding more CPU-NB voltage can add a lot of heat to the CPU...add voltage in tiny steps..not big jumps

And actually, it took me so long to get this done because ironically, life was in the way. I haven't been near as active lately, you should have seen me last summer when being at work didn't directly correlate with actually working...

Now that I actually have to work at work, its really put a damper on things...

Good luck, and make sure to let us know how the NB OC goes.

**thlnk3r** · 06-18-09

Thread is now stickied

gerikoh · 06-18-09

Quote:

Originally Posted by jimibgood

I have studied this in depth as well. Like Our members show, the majority use much lower than 2400 on the NB. Raising the NB with aftermarket chipset cooling will absolutely getcha a higher OC but as far as stock chipset cooling, Lower NB will definitely keep you cooler and stable. Pushing it is what gets a nice overclock. I have gotten over 2600 on NB and once 2800.... You may be onto something... I will increase NB voltage and see what I can get my NB up to just to see. Once I get a nice NB setting, I will go for another overclock.

Logan.. you need to get a life and so do I...LOL...

Kidding. I need you for this question. My bios has 2 Nortbridge voltages. NB/CPU and NB. I mess with NB and really get nowhere. The NB/CPU is where I get places but really could use some recommendations for settings. I can get over 2600 on NB with 1.30 NB/CPU voltage.

i already bought an aftermarket for it. and i've already set nb volts to 1.5. i even tried 1.6 lol but i just can't boot windows. nb/cpu i believe is for ht link.

logan · 06-18-09

Wouldn't the HT link be affected by the HT voltage? or am I missing something completely (not trying to be rude, just making sure the guide is accurate).

And thanks for the sticky thlnk3r, hopefully people will start to use this like durches... kinda the one stop spot for helping new users figure out whats going on.

gerikoh · 06-18-09

Yep. And i can actually adjust the ht voltage. I did try a 0.06 increase though. And i want to push it further but i can't till i buy an aftermarket for my southbridge. I just want it to be safe.

I just want to buy all my stuff before I continue experimenting with this thing.

jimibgood · 06-18-09

Quote:

Originally Posted by logan

The NB voltage should be the chipset voltage. That is the voltage that you would increase to help with higher reference clock speeds (useful for OCin non-Black Edition processors). The NB/CPU voltage should be the actual NB voltage, which is what you will need to increase to get a large NB OC.

It seems like most high OC's will use around 1.4v for the NB/CPU voltage, so you might try that out and see how that goes. Also note though, that since the NB is in the CPU, that that will also effect the CPU temp.

From the link that I posted before.

And

And actually, it took me so long to get this done because ironically, life was in the way. I haven't been near as active lately, you should have seen me last summer when being at work didn't directly correlate with actually working...

Now that I actually have to work at work, its really put a damper on things...

Good luck, and make sure to let us know how the NB OC goes.

When I increase my NB voltage I crash. The CPU/NB v are what I only get results with.

I understand that but voltages are can be different with the same motherboard. Chipsets are different... there are lucky and unlucky ones.... But back to the topic/////// I got over 2800 MHz stable at 3.67GHz but still cannot go further. It seems to be more unstable and crashes quicker in the 3.7GHz + range

jimibgood · 06-22-09

Logan, you made a comment that the Phenom II's are much faster than the original Phenoms. They are only 9% faster core for core.

**thlnk3r** · 06-22-09

Quote:

Originally Posted by jimibgood

Logan, you made a comment that the Phenom II's are much faster than the original Phenoms. They are only 9% faster core for core.

Jimibgood, that is some interesting info. Do you have links to reviews/benchmarks that discuss this?

Good luck

wuttz · 06-22-09

jimibgood thanks for the info but would like a source to cite for future reference please. thanks bud!

**edit: lol think3r!

**thlnk3r** · 06-22-09

Quote:

Originally Posted by wuttz

jimibgood thanks for the info but would like a source to cite for future reference please. thanks bud!

**edit: lol think3r!

Wuttz, hey great minds think alike

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Phenom II Overclocking Guide

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