The Official Opteron 939 Overclocking Thread

**ugp** · 12-18-2005, 08:20 PM

Well I am testing and trying to get higher FSB on my RAM for OCCT Stability. As far as I am concerned...if I pass OCCT I am stable enough for 24/7 use and gaming. That has always been my experience in the past anyway. So don't ask for Prime Screenies from me

EDIT:

More results...

I got a higher divider 100% stable now atleast too.

**Xchus** · 12-18-2005, 08:51 PM

I got the same chip as some people here from Newegg 148 CABYE 0543FMPW and it does 2.8GHz at 1.5V and 2.9GHz at 1.6V, but at 1.6 gets over 50C and I dont like it, I wonder how you guys are doing to get 3.2GHz or 3.1GHz or 3.0GHz at 1.5v. Please advice.

**dnottis** · 12-18-2005, 09:18 PM

Originally Posted by Xchus

I got the same chip as some people here from Newegg 148 CABYE 0543FMPW and it does 2.8GHz at 1.5V and 2.9GHz at 1.6V, but at 1.6 gets over 50C and I dont like it, I wonder how you guys are doing to get 3.2GHz or 3.1GHz or 3.0GHz at 1.5v. Please advice.

1.6 is alot.

I'm at 3000 @ 1.47 load is about 42 (prime for 10 hr) with this chip, it runs a few deg hotter than my other Opterons.

**ugp** · 12-18-2005, 09:28 PM

Originally Posted by Xchus

I got the same chip as some people here from Newegg 148 CABYE 0543FMPW and it does 2.8GHz at 1.5V and 2.9GHz at 1.6V, but at 1.6 gets over 50C and I dont like it, I wonder how you guys are doing to get 3.2GHz or 3.1GHz or 3.0GHz at 1.5v. Please advice.

Try these settings...

273x11.0 with v1.500 set in BIOS and throw a divider on it to start

Or...

300x10.0 with v1.500 set in BIOS and same thing with a divider...

Load temps for me are 42C the highest I have seen with a TT Big Typhoon and a plain old 120MM Fan on it. Closed case and all.

**Fluence** · 12-19-2005, 03:31 AM

Received an opty146 last week. Been testing it since saturday.

Stepping is cab2e 0546gpaw.

Was able to do 2700 @ stock volts. 2800 needed 1,36 volts

But 2900 was even at 1,6 volts no go.

So decided to burn it in. And now, 2900 is priming at 1,45 volt while I am writing this post. Before this I primed 2900 at 1,5 volts to be on the safe side.
But I think I can try 1,4 volts after this.

I never thought I would achieve this from a very new chip!

**Cyprio** · 12-19-2005, 04:14 AM

Guys - i have just got a new stepping Opty 146 (cacje 05468bpmw).

I have read in a few other forums that these are doing 2.8 at stock. I am struggling to get mine to 2.75 @ 1.56. I have my BH-5 set right down to stock speeds to test the CPU (although i know that it will do 240 at 2-2-2-8 when i give it enough juice).

At 2.75 the CPU idles at 33 (Watercooled).

What voltage do u guys have your LDT and chipset set to?

Anything else i can tweak before upping the volatge again?

Thanks

**Tamille** · 12-19-2005, 04:20 AM

Originally Posted by Cyprio

Guys - i have just got a new stepping Opty 146 (cacje 05468bpmw).

I have read in a few other forums that these are doing 2.8 at stock. I am struggling to get mine to 2.75 @ 1.56. I have my BH-5 set right down to stock speeds to test the CPU (although i know that it will do 240 at 2-2-2-8 when i give it enough juice).

At 2.75 the CPU idles at 33 (Watercooled).

What voltage do u guys have your LDT and chipset set to?

Anything else i can tweak before upping the volatge again?

Thanks

set your LDT at 1.3v and chipset at 1.6v. some times it takes a bit of voltage for the CPU's mem controller to be stable.

**Cyprio** · 12-19-2005, 04:34 AM

Any BIOS receommendations?

Am currently using 510-2FIX

**stone_cold_Jimi** · 12-19-2005, 04:48 AM

Cyprio, is this one of the CPUCity ones? I've had mine for about 10 days or so. With stock HSF it panned out to 2.8 G at 1.47v - 1.49v, LDT 3x, Z503 @ 166 3-3-2-7, LDT and chipset at stock volts. Did a 2.92 boot but it was hot hot. This is with A8N32 mobo.

If I can't get round the cold bug, it'll have to be sold.

**Cyprio** · 12-19-2005, 05:18 AM

yup - its one of the CPU city ones. Maybe it needs more voltage to go higher than 2.8. mines running at 33 degrees so i am guessing i can push it further... can i?

**berk** · 12-19-2005, 06:45 AM

I turned down the volts to get a stable overclock with mine,the A8N32-SLI overvolts quite a bit,my 148 CACJE tops out at 2.9,but my BH-5 maxes at 240,which makes it unstable for 3d mark tests,my memory is holding me back on my bandwidth.
Sisoft gives me the most accurate reading from the 'cpu&bios info' on the voltages.
I'm at 1.54v running 2887.5x10.5..memory at 240 3.2v 5-2-2-2 183 divider.

**stone_cold_Jimi** · 12-19-2005, 06:46 AM

@Cyprio

With care! I got to 2.92 with at least 1.55v (might have been more); just keep an eye on the temps. If you're going to damage it, this is how.

Hmm, 33 idle on water - that's quite warm, and you're already at 1.56. I run a w/c Clawhammer at 1.675v every day, but that's a 1.5v chip. Set yourself a limit like 1.625 or whatever you feel comfortable with and see how it runs for a short while. GL

@thebeast

The A8N32 vcore overvolts about 0.06v compared with BIOS - freaked me out when I got a dmm onto it. My foray into 2.92 G might well have been 1.6v which is a tad too much for stock HSF.

**Xchus** · 12-19-2005, 06:57 AM

Originally Posted by ugp

Try these settings...

273x11.0 with v1.500 set in BIOS and throw a divider on it to start

Or...

300x10.0 with v1.500 set in BIOS and same thing with a divider...

Load temps for me are 42C the highest I have seen with a TT Big Typhoon and a plain old 120MM Fan on it. Closed case and all.

I try that 300x10 at 1.5v since my memory is rated at 300 2.5-4-4-8 2T, but that doesnt work. I run prime and it fails right away, I tried using a divider and it's the same thing. One weird thing at stock the Epox mobo sends out 1.47V that is totally weird. I havent had any time to play with the new cpu (i'm graduating this semester) but at least it seems stable at the settings in my sig, my sister have been playing on the pc for hours and i havent had one problem yet. I'll try that again either way, any of you guys "burned-in" the cpu? Thanks for the replies.

**umbre_tombetoil** · 12-19-2005, 07:32 AM

Opty148 CABYE 0528 GPMW from boblemagnifique.
IHS removed/replaced by Misteroadster.
Made test with ambiant t° and with external t° about 0°c
All in aircooling outside case (XP120 + Enermax UC12FAB 12V).
Now max t° about 51° Prime 3Ghz 1.6v.

Ambiant t° :
max spi1M

max cpumark

max screen

max aquamark (CG 612/633)

max 3D05

Outside :
max spi1M

max cpumark

max screen

max aquamark (CG 630/633)

max 3D05

Stability tests ambiant :
2860 1.4v

2900 1.425v

2955 1.525v

Now I've got 3Ghz with 1.54v real (MBM5). Try to get 3G with less voltage.
My day to day configuration : 11x260 1.375v ram 3.3v 2-2-2-5.
In the beginning of 2006, I'll surely beat my scores with my new chill ...

**mascaras** · 12-19-2005, 12:36 PM

hi guys like i said today i receive my opty 148 0543 FPMW

for start run 2750mhz@1.37v no prblems:

>>

now i run 3090mhz@1.53v steel no problems:

>>

and now 3GHz@1.40v
>>>

more tests later.

**iMAX** · 12-19-2005, 03:25 PM

Opty 146 CAB2E 0540, stable SP2004 at 3.05G, vcore 1.56V in bios

**dnottis** · 12-19-2005, 03:30 PM

Originally Posted by mascaras

hi guys like i said today i receive my opty 148 0543 FPMW

for start run 2750mhz@1.37v no prblems:

>>

now i run 3090mhz@1.53v steel no problems:

>>

and now 3GHz@1.40v
>>>

more tests later.

For prime stability @ 3000 I needed 1.44v, 1.40v failed at 3 hr.

**mascaras** · 12-19-2005, 04:14 PM

didnt try prime yet , tonight i let prime runing .

**ugp** · 12-19-2005, 05:59 PM

This is something weird.

I could pass OCCT @ v1.475 but I could not calculate a 1MB SuperPi...weird.

**mascaras** · 12-19-2005, 06:03 PM

Originally Posted by ugp

This is something weird.

I could pass OCCT @ v1.475 but I could not calculate a 1MB SuperPi...weird.

thats impossible my friend. My 148 its OCCT 100% stabe 3GHZ@1,40v , i have to see in prime95 now , but the dnottis said that 1.40v its OCCT stable and at prime95 he nedd 1.44v i have to see that. But if you have occt stable you should be able to run Pi1MB , thats strange

**ugp** · 12-19-2005, 06:43 PM

Yeah it works not...and now it doens't work...it seems it has to do with when I run it after certain programs...

28.578s is my fastest time yet

**funkflix** · 12-20-2005, 03:22 AM

Originally Posted by Fluence

Received an opty146 last week. Been testing it since saturday.

Stepping is cab2e 0546gpaw.

[IMG]http://www.wanaka.nl/cab2e.jpg

Was able to do 2700 @ stock volts. 2800 needed 1,36 volts

But 2900 was even at 1,6 volts no go.

So decided to burn it in. And now, 2900 is priming at 1,45 volt while I am writing this post. Before this I primed 2900 at 1,5 volts to be on the safe side.
But I think I can try 1,4 volts after this.

I never thought I would achieve this from a very new chip!

[IMG]http://www.wanaka.nl/prime@2900.jpg

Any news from ur 0546GPAW?

And what is ur cooling?

**Ferry82** · 12-20-2005, 03:41 AM

Originally Posted by ugp

Yeah it works not...and now it doens't work...it seems it has to do with when I run it after certain programs...

28.578s is my fastest time yet

Try to reinstall it.

**starostise** · 12-20-2005, 08:09 AM

http://valid.x86-secret.com/show_oc?id=58043

Xtreme overclocking or not?

**funkflix** · 12-20-2005, 08:41 AM

Hmm, any benches?

Thread: The Official Opteron 939 Overclocking Thread

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