Phenom 9950 Overclocking

[demonkevy666]

Do you have to run your memory at 2.3v for stability? Im running my OCZ's at 1066 5-5-5-16-26 and am only giving them 2.1v. That is for 2 x 2GB, maybe this is the reason I am having some instabilties issues while priming....

Have you tried running with 2.1v?

Also what is this VDDA you are speaking of? Is this the same as VDDC on the DFI board I have?

I haven't tried them at lower volts and 1066mhz my MSI would only work them a 1066 at 2.3 volts.

CPU VDDA is for a PLL.

[mongoled]

I haven't tried them at lower volts and 1066mhz my MSI would only work them a 1066 at 2.3 volts.

CPU VDDA is for a PLL.

Sorry, but you have me

If your MSI @ 1066 would only work with the ram at 2.3v, why do you say you havnt tried the ram at 2.1v, as this contradicts with what you are saying??

[demonkevy666]

Sorry, but you have me

If your MSI @ 1066 would only work with the ram at 2.3v, why do you say you havnt tried the ram at 2.1v, as this contradicts with what you are saying??

they would only do 1066 at 2.3 volts, to boot. even timings didn't matter.

[RASTAVIPER]

Loosen your ram 4-4-4- is too tight for now ,,

phenom likes 5-5-5-15 or higher for high freqencies. or 4-4-4-12 for using low freqencis 400/533 under 800mhz total..The biggest thing that will hold you back is tight timing and trying to exceed your ram clocks. This is why you set those two variables low when clocking the CPU higher(High CPU multi try with 800 then 667 then 533.. Sometimes the ram multi needs to be lowered when using high CPU multi..

You can lower the timing back down after you find that CPU sweet multi. Keep NB around 2000mhz for now and try ganged mode with auto timing for starters while manually using 2T. What ever Ram divider you want.. Set Ram to Maxclocks or manual but keep the timing parimetes on Auto and use 2T setting.

Forgot to say that my timings were put to 5-5-5 but nothing changed.
I tried to put NB around 2100 but no good

Im using my BIOS settings,,
I suggest that when ACC is enabled you use +2 on all cores then Adjust your CPU/NB vcore untill sytem is stable ..Also make shure your HT link is 2000mhz not more..you can have Higher NB if you wish but the ASUS79-T likes 2000HT with the 602bios..on the 302 and 403 its more friendly on HT settings..

I have seen no problems keeping 2000+at HT at high clocks.

[techtrancer]

9950 @ 3366 Mhz






http://valid.x86-secret.com/show_oc.php?id=450204

[RASTAVIPER]

9950 @ 3366 Mhz



http://valid.x86-secret.com/show_oc.php?id=450204

Not bad, but the really interesting thing is above 3.750 mhz...

[felix_w]

@3700 what is the stability of your system ?

[RASTAVIPER]

@3700 what is the stability of your system ?

You can't expect stability at these numbers...
Maybe stable enough to get some cpuz screenshots.

[gOtVoltage]

ooops bump

[gOtVoltage]

Forgot to say that my timings were put to 5-5-5 but nothing changed.
I tried to put NB around 2100 but no good


I have seen no problems keeping 2000+at HT at high clocks.

Rasta,,

Im refering to when you raise the HTT and the PC is crashing..I suggest lowering the HT to 2000mhz or slightly lower to eliminate possiable cause since pc isnt stable..

Ive already done 2500 and 2700mhz HT = 55000/5400 so the ASUS can handle that...

P.S. 3500mhz range is even oushing stability...id love to see benches @ B3 3700mhz but know its a farcry at stability Water or Aircooled.

[ah_khoo]

i know it's a bit late since d release of deneb is just around d corner. can't wait any longer as i've been 'suffering' with single core for the past 2 months...

[zif33rs]

Thats great voltage for a stable 3ghz OC. congrats on a good chip. Mine on the other hand seems to thrive at higher volts. For 3ghz I need 1.34v for stability.

Been running abit higher than that benching though. Not sure about over all stability but have finished some 3D marks at 3.5ghz. After vantage and 06 runs my temps are still good. anyone else braving high voltage? Im running water btw.

3.5ghz @ 1.63v temps about 50c max after both runs.

Going to see if I can break my personal best at 1M sp 22.172s @ 3.6ghz

[Chicken Patty]

zif33rs

Don't you think your CPU score at that clock should be a bit higher? I score the same at 3.2 GHz, just asking bro, seems a bit low, you have any idea why???

[mongoled]

Just a quick head up to those of you who have posted in this thread and have either assisted or been on the frontier of pushing the phenom CPU's

Thanks to your efforts I now have my CPU prime95 *stable* for over 3hrs (sometimes 9hrs) at 3.2Ghz, which was my goal when acquiring my CPU.

This is very much appreciated, without your guys here at XS, this would have proved a lot more time consuming!



Now I wait for the Phenom II to appear to see what we can do next

[Chicken Patty]

Just a quick head up to those of you who have posted in this thread and have either assisted or been on the frontier of pushing the phenom CPU's

Thanks to your efforts I now have my CPU prime95 *stable* for over 3hrs (sometimes 9hrs) at 3.2Ghz, which was my goal when acquiring my CPU.

This is very much appreciated, without your guys here at XS, this would have proved a lot more time consuming!



Now I wait for the Phenom II to appear to see what we can do next

No problem bro, thats what we are here for dude. Glad you reached your goal, and I think we are all waiting for the Phenom II to arrive

[charged3800z24]

zif33rs

Don't you think your CPU score at that clock should be a bit higher? I score the same at 3.2 GHz, just asking bro, seems a bit low, you have any idea why???

I had the same effect when going from 2200NB to 2400NB.. My score went down.. but my total went up.. this was with a lower HT clock. when they are the same..oddly enough.. the score was lil better with the 2400mhz NB..

[Chicken Patty]

I had the same effect when going from 2200NB to 2400NB.. My score went down.. but my total went up.. this was with a lower HT clock. when they are the same..oddly enough.. the score was lil better with the 2400mhz NB..

I can score 4997 CPU points at 3.3 GHz, so def. there is something wrong with his score.

[zif33rs]

I dont have any idea tbh. I was just trying to run the highest clock I could thru 3dmark. Between trying to reach Techtrancers amazing 3.7ghz mark for some 1M sp runs and getting my 4870x2 to crossfireX with a 4870 I really havent been able to fine tune much.

my previous best with the x2 was in the 17800-ish range. so this was a marked improvment. not sure if its due to the new cat 8.11 or just a higher clock speed. Ill have to dig thru my screenies and tests to see if I can find something that stands out. Way to notice the fine details CP.


P.S. Ive been following your guys lead for along time...thanks.

[demonkevy666]

I can score 4997 CPU points at 3.3 GHz, so def. there is something wrong with his score.

I'mn only scoring 3,300 cpu in 3dmark06 at stock, but I'm in vista 64 bit. at 3,0ghz I score 3,900

[zif33rs]

Thats the other point I forgot...Im am also running Vista 64 bit. Probably taking a hit there.

[charged3800z24]

I can score 4997 CPU points at 3.3 GHz, so def. there is something wrong with his score.

what do you have the the NB at..I had a score of 4800+ on CPU @ 3.3ghz, with 2200mhz NB, when I changed it to 2400mhz NB my score went down to 4500 on the CPU. people pointed it out to me as well..

[merkk1]

Hi guys
I think this is just what you guys are talking about my NB and HT are running 2500 & 250 mhz but i'am scoring in the 4500s for my cpu score i will try changing my overclock around see what happen + check to see if it make my over all score better .

[RASTAVIPER]

I can score 4997 CPU points at 3.3 GHz, so def. there is something wrong with his score.

Mine is 4965 at 3.450mhz and 5.117 at 3.510..
Maybe the scores are not so stable, if you can get better score than mine at 3.450.

[Chicken Patty]

Mine is 4965 at 3.450mhz and 5.117 at 3.510..
Maybe the scores are not so stable, if you can get better score than mine at 3.450.

yeah,, however the score at 3450 seems right though. Weird heh? Guess they are just not so stable.

[gOtVoltage]

Thats great voltage for a stable 3ghz OC. congrats on a good chip. Mine on the other hand seems to thrive at higher volts. For 3ghz I need 1.34v for stability.

Been running abit higher than that benching though. Not sure about over all stability but have finished some 3D marks at 3.5ghz. After vantage and 06 runs my temps are still good. anyone else braving high voltage? Im running water btw.

3.5ghz @ 1.63v temps about 50c max after both runs.

Going to see if I can break my personal best at 1M sp 22.172s @ 3.6ghz

Try running GANGED,,with somewhat the same NB speed or 100mhz/200mhzNB less..

Youll get that 21.xxxs @3.6mhz


BIGNOTE: If the NB slowsdown or you CPU score is lower in any bench ,,Its most likely lowVolts on the NB..trust me.

Just watch your temps and ive found my NB uses at least 1.48volts for 2500mhz stable at any ram freqency. ..Just raise it slow and watch temps ,,youll see..
Also differnt ram multi will help with high NB..Some ram multis work better than others even if the Ram freqency is lower than what you had before. Even Mild latency like 5-5-5- with 15 or 18 is a phenon sweetspot indeed.

I always clock what the IMC likes most,,thus trying to have a Low latency above 800mhz it dosnt like too much.