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AMD® Phenom™ II Overclocking Thread

I'm using the H50 on my chip.

I only installed it 30 mins before running that bench so allow the thermal compound some time to set and I'll run a prime again.

PS.

Been running Prime for an hour now and temps have not gone past 52.

Screenie of memory;

Memory.jpg
 
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Just tried to push a little further, raising the NB and HT to 2100 MHz plus raising memory to DDR2 800 speed.

In short - not happening with a Freezer Pro 64. Passed 5x intel burn but hit 60°C ish in S&M then hung. Back to 1800NB and more sensible load temps for me..
 
Here is my latest:

2qkth8w.jpg


Cant seem to get above 3.82ghz. So I am focusing on upping the nb multi. Managed to get up to 13x now (2600Mhz). Also passed an hour an a half of memtest86+ last night. Trying for 14x now.

I have not touched the HT stuff yet though. TBH Im not really sure what it is or what I should do with it. Any ideas?

Also do my memory timings look good? They are just copied from the OCUK description page.:p

EDIT: Does anyone know what CPUVDDA Voltage is? It is a setting in my BIOS that I have not touched yet.
 
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ht link has to be equal or grater than the nb frequency
upping the ht link and nb frequency means you will need to add more volts on the CPU-NB option add around 0.05v should give it a bit more stabilty as upping nb and ht puts more stress on the IMC thus needing more volts

you will get more from your system overclocking the HT higher it's better to stick at 3.8ghz with a high HT than go for 4ghz with a low HT
 
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Thanks bigjimmyauk. I will try upping my ht link. I think it is still on auto at the moment.

I am glad to hear I have to do something with it because I was pretty pleased with my NB frequency but it didnt actually seem to make much difference to performance... :rolleyes:

EDIT: Tried to get to 14x north bridge multiplier this morning but it was having none of it. Prime kept crashing in the first minute or so. Moving on to HT link tweaking.:)
 
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Hey eddyc, when you've overclocked the HT link aswell would you mind doing a SuperPi 1M and Fritz Chess Benchmark run? Just want to see how much I'd gain by going that far with it, at the moment I just leave it on stock for every day stuff.
 
bigjimmyauk said:
ht link has to be equal or grater than the nb frequency
upping the ht link and nb frequency means you will need to add more volts on the CPU-NB option add around 0.05v should give it a bit more stabilty as upping nb and ht puts more stress on the IMC thus needing more volts

you will get more from your system overclocking the HT higher it's better to stick at 3.8ghz with a high HT than go for 4ghz with a low HT
Click to expand...

?....

I run 2.2GHZ HT, 2.8GHZ NB..
It's the other way around. HT is also controlled by SB.
 
:D

Thanks for all the help guys. I will make those changes tonight and then do a superpi and chess benchmark.

So if my ht link frequency should be 3x my memory speed - that makes 2400.

But my nb frequency is 2600 so should I put the ht link up to 2600 (or just below) or just stick at 2400?

I reckon the idea about doing a most improved competition is a good one. I might do superpi and chess on all stock settings and then again at my latest settings to see the improvement (I sincerely hope the hours of fiddling have done something! :rolleyes:)
 
I've just noticed your CPU isn't a 965BE, must have read bigjimmy's. :P

It'll be good to see the increase though. I'd do it at stock with the third core enabled though.
 
No its a 550BE. Edited my sig.

Yes Ill keep the 3rd enabled.

Also does anyone have any thoughts on cool n quiet and other similar settings. Most of the guides I have read on unlocking/OCing these processors start out with telling you to disable but I recently saw this. They finish up with re-enabling both cool n quiet and C1E and suggest that everyone should do the same.

Anyone tried this?
 
I'd keep cool and quiet on, can't see how it would make the overclock unstable really as it basically just clocks the CPU as you use it, it's only the max values that are increased.

If anything I think it should make it more stable! I'm not sure what C1E is though
 
Good point. I might take my windows power mode off 'high performance' as well for the same reason.

Ill have a look around about C1E and post back if I find anything.
 
Cool and quiet can cause problems if FSB overclocking as all the speeds and voltages are affected. It has to be stable at every stage. If I enable CnQ I get BSODs trying to boot more often than not.

I'm planning on setting my own CnQ profile in k10stat at some point.

Should be fine if OCing on multi (as long as it doesn't 'forget' your OC setting).
 
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