The Official Opteron 939 Overclocking Thread

[ben805]

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

If your friend can prime at 2.9Ghz on air with only 1.5v.....that's freaking amazing!!

[mongoled]

If your friend can prime at 2.9Ghz on air with only 1.5v.....that's freaking amazing!!

Heeehehee 'amazing' is relevant to wht u are used to, if I told you tht he has a Venice (yes I know its half the cache) tht primes at over 2.9Ghz on the same cooling then 2.9ghz wouldnt be so 'amazing' to him, LOL

But it is still very good!!

Something tht concerned me though is tht even though the CPU primed upto 3hrs, he didnt stop it but it rebooted his CPU! I find this very strange behavoir, usually prime should just fail, a reboot tell me tht he may have spikes on his CPU voltage. A rock stable CPU voltage line is a must for pushing these babies

[ozzimark]

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

perhaps a picture of my half-assed attempt to lap the heatsink, then giving up will show you why the temp increase is so massive:



i just gave up. way too rounded. i'll play with it when i get bored someday

[eva2000]

i'd like to see some max cpu speeds for 3dmark2003 vs max cpu speeds for superpi 8-32M see if it behaves the same as FX-57 in that 3d2k3 needs more vcore to pass than other benchmarks

[dinos22]

Something tht concerned me though is tht even though the CPU primed upto 3hrs, he didnt stop it but it rebooted his CPU! I find this very strange behavoir, usually prime should just fail, a reboot tell me tht he may have spikes on his CPU voltage. A rock stable CPU voltage line is a must for pushing these babies

i wouldn't be concerned about that...i had a couple of Week 17 EPMW Venice CPUs and week 16 GPAW CPU......week 17 CPUs would stop with an error in Prime or SuperPI or OCCT.........week 16 on the other hand would just reboot or hardlock....strange CPUs.........week 16 was 32M SuperPI stable at 2.9GHz....if I went 1MHz higher in HTT.....reboot...hehehe with Wk17 CPUs they were stable up to 2850/2875 in 32M if i tried Spi even at 2950 on them it would just error but not crash/reboot......also I needed less Vcore with Week16 for SPI/more for 3D but I needed more vcore with Week17s for SPI/less for 3D

[dsumanik]

anyone try and lay the smackdown on the dual core opti's yet?

[dinos22]

anyone try and lay the smackdown on the dual core opti's yet?

one user is getting his early next week at OCAU...Opteron 175....hopefully he'll OC it a bit...i'll post results if it happens

[Vapor]

Well it seems my GTX is in a very good mood to run fast but seems to get lost....it's scoring lower on higher clocks (and it is actually running the higher clocks according to RT) than what it used to....I did manage to pull a 37.4k in 01, even with a lowly Nature score

Not gonna try AQ3 or 03/05 until I figure out what's up with my GTX (it's running a whole 50MHz higher than it did a few weeks ago--and actually running it too--but scoring lower).

As for the 4 other settings in the BIOS--those are mainly for dual core processors, IIRC.

EDIT: I think I may have a solution to my GTX problems.

[dinos22]

soooo any DI action yet

looks like the Dual Core Opteron 175 dude's got to wait for the Expert board which is a couple of weeks away.....

[Ferry82]

soooo any DI action yet

looks like the Dual Core Opteron 175 dude's got to wait for the Expert board which is a couple of weeks away.....

Omg wish i could get that Opteron

[dogsx2]

Took out the 146 and put back in the 144. With a bad mb it's hard to do much. Went back to default Vcore and was able to get this. With new mb I know it will go higher.

[asianguy80]

Ok here is my last half assed attempt for today. I just did a quick SPi8M run at 290 @ 1.4 + I think 6.6% I dont remember for the life of me. I used a 5/6 dividier. temps idle for 37-38 and while SPi'ing it ramped up to 45, the highest during the 5 minutes.

I know this isn't the greatest OC because everyone else has extreme cooling but I only have my air and it's pretty hot here in CA. This morning was actually pretty cool to my surpise so i tried my luck and I think I did ok. I'll have time later tonight to tweak some more. Also for some reason choosing 1T/2T command clock isn't showing up in my bios. it disappeared from the options so i'm gonna hve to install a64 tweaker later tonight. I won't be able to check the forums until later tonight. this is my personal best with the 10x multi. I tried 300 but the system would hardlock or reboot if i tried 300 and i upped that voltage to about 1.55.

[afireinside]

Is that on a neo4? Not a bad OC at all considering the cooling and motherboard. Do you have any watercooling?

[gundamit]

I know this isn't the greatest OC because everyone else has extreme cooling but I only have my air and it's pretty hot here in CA. This morning was actually pretty cool to my surpise so i tried my luck and I think I did ok.

Yeah, it was a little cooler this morning. Just a few degrees drop in air temps gave me my best run yet.

[Millyons]

what are your load temps with the XP90C

[ozzimark]

for anyone who wants to read it, i just wrote up part 2 of my review:
http://eclipseoc.com/index.php?id=3,29,0,0,1,0

[jahjahbinks]

Anyone have any success with prime yet?

[ozzimark]

Anyone have any success with prime yet?

depends on what you mean. i'm >3 hours prime stable at 2.7ghz with 1.47v, but that was a while ago, i think i can get a bit more out of it

[jahjahbinks]

Yeah, that's what I wanted to know.

[ozzimark]

well.. some of us will get to that soon. i plan on using this as my main rig for a while, so i'll definitly do a lot of testing to see where it tops out.

[Vapor]

I will never run Prime on any of my computers--ever.

[dogsx2]

Anyone have any success with prime yet?

Not prime but I did OCCT 2929@1.36v. My 3700sd would do it at 2900 but it took 1.6v. If the next stepping are close to this, I don't know why anyone would want to buy a sd.

http://img285.imageshack.us/my.php?i...930occt2gn.jpg

[dogsx2]

I will never run Prime on any of my computers--ever.

I hate prime too. I like OCCT. IF it will do 30 minutes, its stable above anything I'll ever need.

[Vapor]

Meh, I don't run my computers anywhere near their bench speeds, don't need it.

[jahjahbinks]

Well, the way I see it is that your treat computer like you gonna run SETI on it. Prime does FFT which is similar to SETI. Of course if you can get SETI going 24/7 then I have nothing to say.

Of course some people will disagree, so let's try this. Treat your coomputer as if you gonna play game on it, if you can play it as you would on any other computer from gateway, dell or whatever (i am talking about stability here), then I have nothing to say.