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1100T OCing help - Page 2

post #11 of 19
I'm @ 1.47v, 1.65v ram and Standard timings/voltages on everything else. I've managed 4.1ghz stable @ 49c on Prime95, but can't get past either!
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post #12 of 19
Quote:
Originally Posted by joeykrug View Post
Cpunb 1.5 is way too high. Why is ht above 2k bad? I read it helps stabilize the OC if it is the same as the cpunb frequency.

before you say something is 2 high why don't you look at others and what voltages they need for 3000 and over
like i said look at the crosshair IV club and there volatges for 3000 and over cpu/nb

and ive always read the exact opposite that having a higher than 2000 ht link makes it more unstable
Edited by solar0987 - 2/27/11 at 5:53pm
post #13 of 19
Thread Starter 
Quote:
Originally Posted by solar0987 View Post
did you look at all the links?
and thats weird from every review ive ever read on phenom 2's it always said it ruins performance above 2000 ht link i edited my post above
No I missed your edit hehe, thanks will read it now. I did leave the fsb alone to start with, then tried lowering the multi and raising the fsb. It allowed me to get 4.1 instead of 4.0.

Here are the numbers for a 2 pass xvid encode, I left everything the same and just adjusted the HT.

Code:
HT Speed            2600  2400  2200  2000
BeSweet   (Time)    0.34  0.34  0.34  0.34
First Pass (Time)   3.26  3.20  3.17  3.22
First Pass (FPS)    171   177   179   174
Second Pass (Time)  3.16  3.01  3.00  3.16
Second Pass (FPS)   180   195   196   180
Total (Time)        7.22  7.01  6.57  7.19
Quote:
Originally Posted by joeykrug View Post
Why is ht above 2k bad? I read it helps stabilize the OC if it is the same as the cpunb frequency.
I've read it should be set at 2000, it should be maxed out and that it should be set at 2200 as anything higher doesn't give any more performance and can even hinder it. In my tests the latter is true.

Quote:
Originally Posted by HenryParry View Post
I'm @ 1.47v, 1.65v ram and Standard timings/voltages on everything else. I've managed 4.1ghz stable @ 49c on Prime95, but can't get past either!
Hmm seems some might just hit a wall at 4.1 then.
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post #14 of 19
I meant that it is too high in the sense that it will shorten the CPUs lifespan. It may be stable, but isn't exactly "healthy" for your CPU. I guess the 3k/1.5v just isn't really worth the risk to me, as for the 2k ht, here's what I read http://www.overclockers.com/forums/s...d.php?t=596023 thuban section.
Edited by joeykrug - 2/27/11 at 6:00pm
post #15 of 19
The info I could find on it (ht speeds) that said it resulted in worse performance when OC was from processors that weren't x6. I'm gonna do some testing and see what I find out. Maybe I'll be wrong, but I don't believe it will degrade performance.
post #16 of 19
Ok so my results show ht link has basically no correlation with 3dmark results.
3dmark11 score. Ht freq
4214 2600
4209. 2400
4206. 2200
4209. 2000

Looks like for my 1090t it doesn't matter.
*note this only applies to thuban x6 since it appears to affect the x4 differently because theirs does have a correlation.
post #17 of 19
Thread Starter 
Results will most likely depend on what your testing. Real world usage will give the most accurate indication aswell. Because there is so little variation in your 3dmark11 results, I would say it wasn't a good test to base a conclusion on. My real world test above had a 25 second difference which is quite big on such a short encode.

In any case I'll test what HT is best for my usage once the clock is finalised.

So, where I am now:

4.0GHz (200x20) 1.425v = Stable
4.1GHz (205x20) 1.45v = ? Under test but looking good, loop 15 of 30 EDIT: Stable
4.2GHz (200x20) 1.55v = Stable
Edited by Croftie - 2/27/11 at 8:46pm
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post #18 of 19
Thread Starter 
Just for fun

3.3GHz 1.175v = Stable
Idle 22C load 31C

4GHz seems to be the sweet spot, 4.1 needs a touch more volts and 4.2 needs a lotsa volts.
Edited by Croftie - 2/27/11 at 9:49pm
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post #19 of 19
you have to run the test more than once for each and find the average
i did and when i raise my ht above 2000 i get worse performance based on wprime 32 ran 5 times each with 2000 2200 2500 and 2800
2000 was best performance so i unno ><
the i played 5 min each of bfbc2 and fps dropped above 2000
Edited by solar0987 - 2/27/11 at 10:49pm
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