The Official Opteron 939 Overclocking Thread

[VulgarHandle]

can't wait for a pic w/ that setup, and nice di smoke risin out of it

edit: with the opti that is

[Vapor]

TDX, 1/2in ID tubing, too much coolant, an okay heatercore with two crappy fans, res, MCW50, D4. Working on getting better fans and possibly a better rad.

And about that Mousepot....

[dinos22]

now we're talking

[Zebo]

Vapo could you please test 2.5-2-2 1T with ballistix @ 250 and 2-2-2 1T with UTT at 250Mhz? I don't care about CPU mhz per se other than staying same in both test.. just want to see which memory I should go with which is faster and by how much\.

Saw some ballistix for $59 recenty for 512!

[Vapor]

My Ballistix can't do that....I don't know of any 1GB sticks that can, actually. I'd definitely hedge my bets on the 2-2-2 though

[gundamit]

geewiz....these Opti are clocking very high and looking mighty good for such a low price tag they're begging for phase change!!

Gundammit or anyone else who has one....can you guys please run atleast 30min ~1hr of Prime blend and see how high they can clock? please...

I got the Prime that was linked in an earlier post and tried the "large" test, but I get instant failure at any speed. Seems bugged. I'll take another stab at it in the next few days.

[dinos22]

I got the Prime that was linked in an earlier post and tried the "large" test, but I get instant failure at any speed. Seems bugged. I'll take another stab at it in the next few days.

try OCCT

[jahjahbinks]

can you get 3Dmark05 running? or any 3d bench you can find.

[Vapor]

My final SPI tests:
8M: 3150MHz


1M: 3175MHz


Expect a 32M within the next 2 hours. Maybe some 3D action too

[mongoled]

Hey Vapor, nice results



I see you voltage is slowly going up, heheheee, u r using cold water arnt you? It looks like these Opty can scale with volts as long as the temperature is brought down!. You are the first person ive seen pushing tht kind of voltage through a Opty (ok afireinside did but tht didnt count )

Lookin forward to more results

[ozzimark]

It looks like these Opty can scale with volts as long as the temperature is brought down!.

oh man, mine scales amazingly with temps. remember how lame it was oc'ing before?

20c idle ~30c load, put the heatercore up to some cold air. here's what i managed with 1.62-1.65v:
3310mhz screen with 3044mhz sPI 1m. there is no question that it's still lacking a bit though
http://valid.x86-secret.com/show_oc?id=40990


(note single channel, that's why the score is so low. i'm kinda lacking two sticks of working ram that are the same size )

[dinos22]

screenie at 3310MHz and highest 1M at 3044MHz....you are definately crippled by high temps or something.....that gap is too wide

[Absolute_0]

screenie at 3310MHz and highest 1M at 3044MHz....you are definately crippled by high temps or something.....that gap is too wide

Exactly what i'm thinking, something is wrong, the gap is HUGE...

[ozzimark]

screenie at 3310MHz and highest 1M at 3044MHz....you are definately crippled by high temps or something.....that gap is too wide

i venture the mobo. read my post again and see what temps i am saying

[dinos22]

i venture the mobo. read my post again and see what temps i am saying

i saw that but it makes no sense almost 300MHz gap dude...WTH

[mongoled]

Well looking like temps r making differences,

Going to have to sort out tht chiller . Has anybody played arnd with some of the 'Advanced Chipset Features' in the bios. There are a few settings in their relevant to the CPU (using bigtoe's modded bios). Wish I had one to play with, i would play with ALL those settings to see if they effect max OC, hehehee

[Vapor]

Hey Vapor, nice results



I see you voltage is slowly going up, heheheee, u r using cold water arnt you? It looks like these Opty can scale with volts as long as the temperature is brought down!. You are the first person ive seen pushing tht kind of voltage through a Opty (ok afireinside did but tht didnt count )

Lookin forward to more results

Thanks man...

No cold water here--it's actually QUITE warm at this point, LOL. In my experience, 52C is when Toledo, SD, and Venus start losing their OC so I just aim to keep it below that. Popping her cherry dropped a good 5C (you shoulda seen how bad contact was between the IHS and the TDX though, yuck) and from there it was all careful tweaking, I've been hammering this thing for a few hours now.

I might be the first to say this, but these seem to BURN IN fairly well--if a SPI fails late (last 4-5 iterations), everytime I run it it fails later and it eventually works.

As this isn't a chip I really need for 24/7, I'm fairly fearless with it--if there's a gain to be had from more juice, it'll get it.

Anyway, it just failed 32M at 3125 in the 15th iteration....it was on pace for a 24'30" or so. Not gonna run it again, it's kinda a waste of time, IMO



Time for 3D....I hope my 7800GTX is in a good mood.

[Vapor]

Well looking like temps r making differences,

Going to have to sort out tht chiller . Has anybody played arnd with some of the 'Advanced Chipset Features' in the bios. There are a few settings in their relevant to the CPU (using bigtoe's modded bios). Wish I had one to play with, i would play with ALL those settings to see if they effect max OC, hehehee

What settings do you speak of, exactly? I might give them a whirl.

[ozzimark]

i saw that but it makes no sense almost 300MHz gap dude...WTH

i have two guesses:
1. i suck at sPI'ing and rock at taking screens
2. i have a defective mobo that doesn't regulate cpu voltage right. the only reason i would suspect this is due to when i run prime95.. whenever it fails, it's ALWAYS immediately after changing FFT size.

[mongoled]

Looking very good,

Im trying to work out how im going to treat my CPU when it gets here, ive never started off with low voltage lovin, but recently I started doinb burn-ins with low volatge and found tht it helped

So maybe this will be the first CPU tht I start to coax more mhz by using low volts. Still many questions peeps want answering, slowly the answers will come to light, these things have stired up quite alot of hype

Just a little piece of information from my friends Opty 146, he tried some prime95 stabilty tests, at the moment (as from last night) he's prime stable up to 3 hrs (small HTT's, please dont lecture abt which option to use, I know very well how prime95 works ) at 2.9ghz with 1.5volts.

Anything higher than 1.5v and the temperatures start going out of control, he is cooling with a xp120 and 120mm delta fan. These CPU's are defo candidates for cherry popping, hehhehehheee

The 52C u mention seems like a VERY reasonable ceiling to start working from, I hope other members can see if thy start losing stability with these chips at tht sort of temperature, ite would be a very interesting thing to confirm

[dinos22]

i have two guesses:
1. i suck at sPI'ing and rock at taking screens
2. i have a defective mobo that doesn't regulate cpu voltage right. the only reason i would suspect this is due to when i run prime95.. whenever it fails, it's ALWAYS immediately after changing FFT size.

welcome Expert board

[mongoled]

What settings do you speak of, exactly? I might give them a whirl.

Just going to reboot and will let u know

[ozzimark]

The 52C u mention seems like a VERY reasonable ceiling to start working from, I hope other members can see if thy start losing stability with these chips at tht sort of temperature, ite would be a very interesting thing to confirm

well if it helps you any, max stable speed for >10min of prime95 on stock cooling: 1.5v = 2710mhz, 55c. 1.55v = 2710mhz, 62c

welcome Expert board

i plan on it, with open arms. the typical dfi teething issues scare me though

[ben805]

Well looking like temps r making differences,

Going to have to sort out tht chiller . Has anybody played arnd with some of the 'Advanced Chipset Features' in the bios. There are a few settings in their relevant to the CPU (using bigtoe's modded bios). Wish I had one to play with, i would play with ALL those settings to see if they effect max OC, hehehee

Enable the 123 Errata option under the chipset features, it stabilized and help my X2 big time, its available on newer bioses. (623-3 and up)

[mongoled]

well if it helps you any, max stable speed for >10min of prime95 on stock cooling: 1.5v = 2710mhz, 55c. 1.55v = 2710mhz, 62c

Ouch thts a big increase in temps for an increase of 0.5v, when u going 'pop it'?

Right the settings im interested in are the following:

CPU Spread Specturm
Errata 94 Enhancement
Errata 123 Enhancement
ACPI SRAT

The ACPI SRAT I would be careful with, I have no idea how this may effect your OS, as for the others play arnd with them and see if they make any sort of difference to OC

-EDIT-

nice find ben805,

u just beat my post, tweak away peeps