Phenom 9950 overclocking

[Assassin48]

i have been reading on lapping the cooler and you will lose 1-5c if you lap it i am thinking of lapping my zalman 9500 since i am not using it

yup you should be careful when you change settings on the bios i always clear my bios when i overclock

 

[fullinfusion]

Well i ordered the Asus M3A32-T deluxe today and it will be here this coming Monday
Cant wait to see what this 9850 will do on it.... thinking 3.5-3.6 hopefully.... im hoping its a cherry mobo... till then guys...

 

[1Kurgan1]

Thats some wishful thinking, you on a stock cooler? I know I was able to get 3.22Ghz out of my old 9850 on a stock cooler on a SB600 board, I never got to try that on my new SB750 board, but I was able to hit 3.0Ghz on that 9850 on stock volts, you might have a hard time cracking 3.5 depending on cooling.

 

[trt740]

Thats some wishful thinking, you on a stock cooler? I know I was able to get 3.22Ghz out of my old 9850 on a stock cooler on a SB600 board, I never got to try that on my new SB750 board, but I was able to hit 3.0Ghz on that 9850 on stock volts, you might have a hard time cracking 3.5 depending on cooling.

mine runs at 3.0ghz at stock voltage and is blazing fast and I can tell you I see zero difference between it and my old rampage with a QX9650. The old system was faster but nothing stresses either system really and won't anytime soon.

 

[fullinfusion]

Thats some wishful thinking, you on a stock cooler? I know I was able to get 3.22Ghz out of my old 9850 on a stock cooler on a SB600 board, I never got to try that on my new SB750 board, but I was able to hit 3.0Ghz on that 9850 on stock volts, you might have a hard time cracking 3.5 depending on cooling.

i run 3.1ghz 24/7 and not new at this.... my cpu is under water and temps even @ 1.375v are high 20's and while running prime she's at 32-34c so im not worried about temps... i know ppl that had a real hard time getting 2.8ghz stable 24/7 and now with the 79-T mobo there hitting 3.4ghz with a bit of playin around.... so 3.5-3.6 should be within margin for what i got.... but time will tell...

 

[Chicken Patty]

hey full so what board did you order again?

The M3A79-T???

Good luck anyhow

 

[fullinfusion]

hey full so what board did you order again?

The M3A79-T???

Good luck anyhow

yeah the asus m3a79-t mobo.... ya don't think i can hit 3.5?
i can get 3.2 now but a tad wobbley with this mobo so the 79-T should be better by far hey?

 

[Chicken Patty]

yeah the asus m3a79-t mobo.... ya don't think i can hit 3.5?
i can get 3.2 now but a tad wobbley with this mobo so the 79-T should be better by far hey?

at least for me it was a huge difference. I hit 3.6 GHz with my 9850.

Hey Brad, check this thread out, maybe you can help me. Check out the last post it has an update.

http://forums.techpowerup.com/showthread.php?t=78337

 

[LeMoose]

Is it really that much difference between the SB600 and the SB750 ?

edit: my cpu is rock solid at 2.8ghz with stock volts, but at 3.0 with as high as 1.45 the system freezes 4 mins into prime.
If my mobo is to blame for this, im sure as socks getting something else soon

 

[ChaoticAtmosphere]

Is it really that much difference between the SB600 and the SB750 ?

A six pin difference. At least the way I understand it is that there are six pins on the CPU that the SB600 does not make use of whereas the SB750 does. Also there is a feature that the M3A79-T has called ACC (Advance Clock Calibration) which the M3A32-MVP doesn't have. These extras combine for higher and more stable OC's.

(belive it or not, I learnt all this just on this thread! )

 

[ChaoticAtmosphere]

yeah the asus m3a79-t mobo.... ya don't think i can hit 3.5?
i can get 3.2 now but a tad wobbley with this mobo so the 79-T should be better by far hey?

It better be better by far!!!! I was originally going to go with the M3A32 before I was "talked" out of it by so good folks right here on this thread (humnhmmm) we don't need to mention who do we CP? lol.

I think CP was just poking at you Full cuz in your first post you said you just ordered the M3A32-T.....even I was like WTF? Where do you get one of those??

 

[servermonkey]

yeah the asus m3a79-t mobo.... ya don't think i can hit 3.5?
i can get 3.2 now but a tad wobbley with this mobo so the 79-T should be better by far hey?

can your m3a32 mvp do this on auto volts?
get the m3a79-t NOW

 

[LeMoose]

hm , I guess i'll be shopping for motherboards in April or so, then.

m3a79-t flashed to support AM3 CPU, does this include DDR3 ram or is it stuck at DDR2 ?

 

[ChaoticAtmosphere]

hm , I guess i'll be shopping for motherboards in April or so, then.

m3a79-t flashed to support AM3 CPU, does this include DDR3 ram or is it stuck at DDR2 ?

Earlier versions may need a bios flash but if you're planning to buy in April, I wouldn't worry the M3A79-T is AM3 ready. Check it out...

http://www.asus.com/products.aspx?l1=3&l2=149&l3=789&l4=0&model=2503&modelmenu=1

 

[Squark]

A six pin difference. At least the way I understand it is that there are six pins on the CPU that the SB600 does not make use of whereas the SB750 does. Also there is a feature that the M3A79-T has called ACC (Advance Clock Calibration) which the M3A32-MVP doesn't have. These extras combine for higher and more stable OC's.

(belive it or not, I learnt all this just on this thread! )

I've never quite got ACC, is it worth using or is it best to do things manually?

 

[Assassin48]

I've never quite got ACC, is it worth using or is it best to do things manually?

ACC is weird on my board so its a little complicated. This is what i found out it does if one of the core fails you just add +4 and it should work that is my theory

 

[servermonkey]

ACC is weird on my board so its a little complicated. This is what i found out it does if one of the core fails you just add +4 and it should work that is my theory

for me, auto worked up until 3.1. After that I went manual (+4)...but for some reason.....it likes 4..

 

[Assassin48]

some one hit 3.5 on a 9950 and id a 3dmark06 run and got 18577
just wow and his setup is almost the same as mine except i have 8gb and he has 2

http://service.futuremark.com/resultComparison.action?compareResultId=9047584&compareResultType=14

just looked and he has 32bit version
i guess having 32 does help a lot like 2000 more points in 3dmark06

 

[Meizuman]

My best score was 14400 with a single HD4850 512MB. But I still have better CPU results than he has.

CPU1 - 1.62 vs 1.57
CPU2 - 2.31 vs. 2.27

My CPU was running @ 3,2GHz

I think it could be that he started 3DMark with higher clocks and then dropped them. Because it is weird that CPU score would be lower with 300MHz more speed.

 

[Assassin48]

the best i got was 165xx with cpu at 3.2 and the latest 4870x2 drivers
it seems i cant go any higher then 3.2
i booted into 3.4 and started prime but one of the core fails so i brought the acc all the way up to +12 and still nothing any suggestions???

 

[Chicken Patty]

Is it really that much difference between the SB600 and the SB750 ?

edit: my cpu is rock solid at 2.8ghz with stock volts, but at 3.0 with as high as 1.45 the system freezes 4 mins into prime.
If my mobo is to blame for this, im sure as socks getting something else soon

lack of ACC. Thats why the SB750 is much better, it has ACC

 

[p_o_s_pc]

lack of ACC. Thats why the SB750 is much better, it has ACC

would someone explain to me what ACC is

 

[Chicken Patty]

would someone explain to me what ACC is

info on that is very limited dude, I suggest googling it, I have mysefl and can't find anything on it, just people in forums posting what they think it is, but AMD never really released info on it. I'll tell you one thing, it works wonders

 

[p_o_s_pc]

info on that is very limited dude, I suggest googling it, I have mysefl and can't find anything on it, just people in forums posting what they think it is, but AMD never really released info on it. I'll tell you one thing, it works wonders

this is what i found

"For the enthusiast however, there's an interesting nugget on the SB750 by AMD in the form of Advanced Clock Calibration (ACC), a new feature which can allow for higher overclocks on a Phenom processor due to some internal mojo that AMD engineers have done and which they won't reveal besides saying that it involves connecting unused pins on the Phenom CPU to the SB750 Southbridge in order to change the CPU's internal timings. This will make it easier to reach some of the higher overclocks long desired by Phenom owners. "

so it looks like AMD is keeping what it does on the DL

 

[trt740]

this is what i found


so it looks like AMD is keeping what it does on the DL

this is very interesting very interesting.