The Official Opteron 939 Overclocking Thread

**Lane-k** · 03-25-2006, 12:34 AM

I have a little prob, at a certain OC pehraps someone can give me some idea:

It's concern stability during SP2004, i have launch a SP 2004 Blend Test at 3144mhz, 262x12, 2.5-4-4-10 ( large timings for test normally i use 2.5-3-3-7 at 260mhz)
DFI expert last beta bios. (12/07)
TCCD600 OCZ Elite

The test pass without warning and errors i have take a screen at 1H20minutes, complete timings with the A64Tweakers,

No problem so far..
...But if i launch the SP2004 Large FTT test (DRam stress), the PC lock up, and i need reboot manually... for the blend test i have put alot of Vcore, but it pass with lower voltage.. I have the feel this is more a PSU prob but i don't understand.. i can imagine the Large FTT test give error after 30-40 minutes if the blend test pass but not lock up directly after 2 sec..

I command a Enermax liberty 620W for replace the TT 680W monday with G-skill Utt Bh5 3200 for play with them but i m not sure the prob is only that..
Some advice?

**4Qman** · 03-27-2006, 08:00 AM

Originally Posted by pancake

Anyone else experienced a drop in needed volts to make your chip stable over time?
When i first got my opteron 146 it needed 1.6v to be stable @ 3g or 3.1g, now a couple of months on its stable with only 1.52v @ 3g its saved me about 3c in load temps aswell on my watercooling.

What htt is everyone running? my old winchester never liked anything over 1000 so i always ran 3 x htt, but this opty runs fine at 4 x 300

I also have had the same drop in voltage required. need 1.62v to Prime at 3Ghz stable. I run it at that for around 3mths, once i removed the IHS its now SOLID in primt at 1.52v

Also lads are the CABYE 0540 FPAW Cold BUGGED?

**OnLine** · 03-27-2006, 10:01 PM

Nothing special but here it is - Opty 148 with IHS removed & on water;

How about a rendertest at 3.2GHz?

**skaktuss** · 03-27-2006, 10:32 PM

28C @ burn???

**OnLine** · 03-27-2006, 11:30 PM

Originally Posted by skaktuss

28C @ burn???

Actually no!

DFI Expert mobo reports too low CPU temp, I'd say add 8-10 'C to those 28'C.
That's closer to the truth.

Btw, removing the IHS reduced load temp by 4-5 'C.
And it's water ...

( It's a cacje but the exact stepping I've forgot )

**C-BuZz** · 03-28-2006, 01:45 PM

Opty 146 CAYBE, 3.2Ghz @ Default volts. Benchable @ 3.5Ghz. Best chip i've ever owned

C-Buzz

**neoman** · 03-28-2006, 07:39 PM

Thats amazing CPU you got :O

**[ITA]SEREUPIN80** · 03-28-2006, 07:42 PM

Hello guys, what do you think about this cpu ?

AMD Opteron 148 - OSA148DAA5BN - CABCE 0520MPMW

**CompGeek** · 03-28-2006, 08:59 PM

Originally Posted by C-BuZz

Opty 146 CAYBE, 3.2Ghz @ Default volts. Benchable @ 3.5Ghz. Best chip i've ever owned

C-Buzz

you lucky man

**C-BuZz** · 03-28-2006, 09:00 PM

Originally Posted by neoman

Thats amazing CPU you got :O

ta

I actually clockgened it all the way to 3.28GHz while priming before straight BSOD. So i'd say around 3.23/3.25 24/7 on default volts

C-BuZz

**dinos22** · 03-28-2006, 09:06 PM

nice one for sure

i forgot to ask you have you dropped the multi and tested where the HTT cold bug limit is

**C-BuZz** · 03-28-2006, 09:16 PM

Originally Posted by dinos22

nice one for sure

i forgot to ask you have you dropped the multi and tested where the HTT cold bug limit is

Heya dude

Havent tried that yet, I'll give it a crack later on tonight after I finish up regassing me SS.

C-BuZz

**Proendo** · 03-29-2006, 01:17 PM

Hello,

I just got my new CPU and want to start overclocking.

some specs...

Asus a8v deluxe
2gb corsair TWINX2048-3200 3-3-3-8
Antec 480W True Power
Thermaltake Tsunami Dream Case

some stock non overlclocked settings

2:1 DDR 400
bank interleaving AUTO
Burst Length 4 beats
CAS 3
TRAS 8
TRP 3
TRCD 3
TRRD 2T
TRC 11T
TRFC 14T
TRWT AUTO
TWCL AUTO
TWR 3
aysnclat AUTO
read preamble setting 5.5ns
2t command DISABLE

CPU FSB 200mhz
CPU mult 10x
CPU voltage 1.350v
agp/PCI 66.66/33.33
vdimm 2.8v

Seems that the ram and cpu combo are a little sensitive. Any suggestions on how to relax the RAM timming so I can get a decent overclock and still get past system post.

**before** · 03-29-2006, 01:30 PM

Nice chip under water

**C-BuZz** · 03-29-2006, 02:42 PM

Originally Posted by dinos22

nice one for sure

i forgot to ask you have you dropped the multi and tested where the HTT cold bug limit is

refuses to boot @ 355HTT lol..

C-BuZz

**dinos22** · 03-29-2006, 02:45 PM

Originally Posted by C-BuZz

refuses to boot @ 355HTT lol..

C-BuZz

it could be something else

i found that with my HTT cold bug Windows XP 32-bit will freeze during loading and 64-bit windows after a few seconds in windows.......soooo i guess it could be some other timings....just play with MAL/RP more and TRFC and some other values.....

you sure that motherboard can do more than 355MHz......i checked mine on air before phase to be 100% sure and it did 32M superpi at 400Mhz easily....and could go up to 420Mhz before it starts playing up

**dogsx2** · 03-29-2006, 02:49 PM

It just dawned on me that you do not have the going to Germany picture up. What happened?

**C-BuZz** · 03-29-2006, 02:56 PM

Originally Posted by dinos22

it could be something else

i found that with my HTT cold bug Windows XP 32-bit will freeze during loading and 64-bit windows after a few seconds in windows.......soooo i guess it could be some other timings....just play with MAL/RP more and TRFC and some other values.....

you sure that motherboard can do more than 355MHz......i checked mine on air before phase to be 100% sure and it did 32M superpi at 400Mhz easily....and could go up to 420Mhz before it starts playing up

when I say refuses to boot I mean refuses to boot into Windows, just freezez @ 355HTT loading windows. Not really worried about it to much, as I can still bench @ 10x351

C-BuZz

**Proendo** · 03-30-2006, 06:47 AM

Hello,

I just got my new CPU and want to start overclocking.

some specs...

Asus a8v deluxe
2gb corsair TWINX2048-3200 3-3-3-8
Antec 480W True Power
Thermaltake Tsunami Dream Case

some stock non overlclocked settings

2:1 DDR 400
bank interleaving AUTO
Burst Length 4 beats
CAS 3
TRAS 8
TRP 3
TRCD 3
TRRD 2T
TRC 11T
TRFC 14T
TRWT AUTO
TWCL AUTO
TWR 3
aysnclat AUTO
read preamble setting 5.5ns
2t command DISABLE

CPU FSB 200mhz
CPU mult 10x
CPU voltage 1.350v
agp/PCI 66.66/33.33
vdimm 2.8v

Seems that the ram and cpu combo are a little sensitive. Any suggestions on how to relax the RAM timming so I can get a decent overclock and still get past system post.

**before** · 03-31-2006, 10:11 AM

3GHz@1.39V under water

**neoman** · 03-31-2006, 11:24 AM

Well done before

**before** · 03-31-2006, 12:03 PM

Thx mate!

**shimmishim** · 03-31-2006, 02:38 PM

CACJE 0602GPMW w/o IHS

I was able to prime 9x334 or 3ghz @ 1.45 with 45C's load.

Wasn't able to do 9x345 or 3.1 ghz @ 1.5 or 1.55. Load temps got too high.

I remember reading CACJE was sensitive to temps so I decide to remove the IHS and now I get these results!

testing prime right now!

specs in sig

**ugp** · 03-31-2006, 04:41 PM

Geez...my 146 primes at 300x10 with v1.62 volts and only hits 40C under load...

**dogsx2** · 03-31-2006, 07:50 PM

Put the 144 back in and took out the dc. This is the same cpu as in post #1 of this thread. It is still one of the better 144's that were made or are still being made.

This cpu has given me more pleasure then any other I've owned.

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