The Official Dual Core Opteron Overclocking Thread

Hi,

I have an Opty 165
OSA165DAA6CD
CCBWE
0551VPMW
a DFI SLI-DR Expert and a corsair 2x1G 3500LLpro memory kit.

If i try to run 2 instances of superpi the second one crashed even at stock cpu/memory speed. I'm runing on water, asetek antarctica & 2xBlackIcePro.
Also when i start the second instace of prime95, even if i set the affinity, it still goes on the core on which the first instance is running.
I've runned SP2004 with small ffts and it was rock stable @ 2700 for over 12 hours.
If i run large ffts is just giving an error after 30-60 minutes.

How can i make superpi 1.4mod to run correctly?

because i think is not because of the processor?

anyone can help me please?

thanks in advance

expert AFAIK hate some ram and still buggy board...
In your case i believe that is a memory problems

@tgm: You must have 2 different copies of superpi in 2 separate folders. And for stability testing the best is to run Large/Blend test. I've read SP2004 stresses less than prime95. Someone reported his proc passes SP2004 but not prime...

Same thing happens with a Mushkin 2G XP4000 (not redline) memory kit ....
Corsair is infineon ce5 i think and the mushkin is samsung uccc.
If it's a memory problem i'll go try my corsair 4400c25pt (2x512m kit) which is samsung tccd.
Also i'll try to revert to the bios with which the board shipped with ...

if someoane else have any other ideas please feel free to tell me :)

thanks guys ...

Quote:

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Originally Posted by Delirious

You can get the 850ssi for $400.00.

I dont completely understand this, if your rails are solid under full load then your not being limited by psu?

If they flucuate its time for a new one?

My little 520 power stream powers everything in my rig, and under dual prime the 12v=12.05, 5v=5.05 and the others are dead on.

According to one of those sketchy psu calculators i need a 600watt psu for my rig. hmm

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nah only way to know if need more psu juice is if you are limited in oc'ing.. way i knew is

cpu oc'd to max = fine
sli cards oc'd to max = fine
cpu oc'd + sli cards co'd to max = need to drop max cpu clock speed

so i assume psu is limiting me and only way to confirm is get a new better psu .... confirmed my suspicions :D

Quote:

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Originally Posted by mongoled

When you use two prime95 to load the CPU, should they be showing loaded at 100% or 50%

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Have you not had a dual core CPU before mongoled?

Anyway, Pete's setup is correct (there is actually no other way of doing it, even if you do mess around with affinity settings) and so both cores a fully utilised. It reads 50% because it's 50% of the entire CPU as it were - which means one core :)

Quote:

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Originally Posted by [timko]

Have you not had a dual core CPU before mongoled?

Anyway, Pete's setup is correct (there is actually no other way of doing it, even if you do mess around with affinity settings) and so both cores a fully utilised. It reads 50% because it's 50% of the entire CPU as it were - which means one core :)

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Nope my first one should be here either today or some time next week :)

Thats not to say I havnt bought one, I have one in the UK with a friend of mine who is currently testing it. He is very happy with it, which is quite an accomplishment because he is not an easy person to impress! Tht duallie is doing 2750mhz with 1.41 (CPU-Z) on a XP120 low speed fan, the chip is a 0551WPMW. The one in the post is a 0550UPMW, will be keeping the best and selling the other (if the 0550 is better, i think my friend wants to keep the 0551, he is tht impressed)

Just a quote from his email

Quote:

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Originally Posted by mixx666

man this chip is getting sweeter and sweeter. I installed call of duty. Before with my cabne maxed settings at a whopping 1900x1200 resolution the game would crawl when there was allot going on. Not now though, maxed out setting and im getting insane frame rates

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Cant wait to get one of these

:toast:

Anyhow thanxs for clearing tht up for me, u probably have saved me a few hrs of frustration (well Pete@X has, hehehee)

If you can get anywhere an 170 Opteron CCB1E0550VPMW with 1387678 Wafercharge take them. Almost any CPU reach the 3,X Gig with 1,4-1,5Vc .
Batches are not important! Only Wafercharge and 170 and the CCB1E0550VPMW are counting!


http://www.bilder-hosting.de/tbnl/GOBZN.jpg

Thats what i have, a ccb1e 550 vpmw 1387678 and it takes 1.55v to get 2.8ghz stable. I think the chip has potential, as it is core 0 that keeps failing while core1 keeps chugging. I really dont want to pop the top though. Also this is the highest batch numbered chip ive ever had, and it is the chip that is kind of dissappointing. Batch is 706.

Look Pete@X has several VPMWs and his 7XX Batch also takes the 3 Gig!

http://www.forumdeluxx.de/forum/show...=203634&page=3

Quote:

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Originally Posted by ben805

I was having the same power experience as eva, when I had the PCP&C 510 SLI my machine would reboot itself during prime @3.30Ghz, anything above 3.30Ghz will results instant bluescreen before the desktop load up. But now with the Zippy 700w....priming @3.30Ghz only result in one core error out but the other core kept going, and can boot straight into windows at 3.40Ghz so yea these Dual opty draw mucho power so a beefier powersupply is pretty much one of the major key for stability at high overclock. Cooling the pwmic area also help with stability big time as mine would get random prime error or game crashes if the pwmic get to around 65'C.

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I have just tried to increase my Opteron 175 overclock by using my new 1 KW PCP&C instead of the OCZ 520W Powerstream.

No change.

Will use different rails just for kicks but I don't think this will cut it.

http://img218.imageshack.us/img218/1...01421vt.th.jpg

its for sale bcause i have a better one here (0550 vpmw)

Where are you guys getting you 170's from?

Quote:

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Originally Posted by uOpt

I have just tried to increase my Opteron 175 overclock by using my new 1 KW PCP&C instead of the OCZ 520W Powerstream.

No change.

Will use different rails just for kicks but I don't think this will cut it.

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I hope you didn't just get that PSU to get a better OC :doh: Hopefully it gets better for you. I thought about getting one but then I thought it would be easier (and cheaper) to pick up a better chip and sell one.:cool:

brand new Opty 165
CCBWE 0548XPMW
130479AL50XXX

first boot...stock vcore :cool:

http://simon.webideal.ca/Temp/165%20....7%20stock.JPG

The 170CCB1E0550VPMW is getting better!
Now i need only 1,36Vc for the 3000Mhz under Windows.

http://www.bilder-hosting.de/tbnl/GZ6K4.jpg

Is that stable though? My ccb1e can boot to windows at 3ghz with 1.4v but again, fails prime in 5 seconds.

prime @ ?

after i read this thread i still doubt why my opty 175 CCBWE 0550 VPMW only can hit 2.7 @1.56 vcore? since my new opty 170 CCB1E 0550 UPMW can hit 2.8Ghz @default vcore .. since i saw those of you have a nice overclocking with VPMW

hi guys on xs.

here are some results from little denmark.

opty 165@9x295@2660mhz@1,4375Vc Step CCBWE 0551VPMW

Dual Prime Stable 15hours

anything above even just a few mhz more and it wont run prime stable one of the core's crap out on any vc sad but true.:(


http://valid.x86-secret.com/show_oc?id=70747

Quote:

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Originally Posted by Hybrid

Thats what i have, a ccb1e 550 vpmw 1387678 and it takes 1.55v to get 2.8ghz stable. I think the chip has potential, as it is core 0 that keeps failing while core1 keeps chugging. I really dont want to pop the top though. Also this is the highest batch numbered chip ive ever had, and it is the chip that is kind of dissappointing. Batch is 706.

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Same Problem here Core0 strikes and Core 1 keep on chucking.
But my Temps with HS are too high. Everything is here Windows and Bench and gamestable. Only Prime fails on one Core0.
And thats still running under Windows.

http://www.bilder-hosting.de/tbnl/HB3JN.jpg

Did you pop the top? I notice that this chip runs around 6c warmer than my 543tpmw at the same settings.

No Heatspreader is still on its Place on the DIe.

Quote:

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Originally Posted by ericware

after i read this thread i still doubt why my opty 175 CCBWE 0550 VPMW only can hit 2.7 @1.56 vcore? since my new opty 170 CCB1E 0550 UPMW can hit 2.8Ghz @default vcore .. since i saw those of you have a nice overclocking with VPMW

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Simply, the 175 0550 U(V)PMW normally (stra) sucks...with the remarcable exception of Pete @ X that rather strangely, in disregard of the steppings and models, seems to be the only one in the world with the ability to pump whichever CPU to 3.0 Ghz, perhaps also that one of its toaster...

I know that what I will say will be able to provoke some "hard" retort, but I don't care

It seems that AMD not pay too much attention to the people that spends hundreds of euro (or dollars) for "top" chip: to me it is clear that ALL the 170 0550 UPMW are a bomb (perhaps exists 1 on 100 that has the misfortune of having one and "must" be pleased with 2800~ only... :D ) when in the case of 165, same stepping, may be a bomb too or a real sucker like the 175, it's really a matter of :slapass:

It is also CLEAR that practically ALL the 175 0550 U(V)PMW are POOR: lot of people have trouble to pass the miserable 2500 climb, and with LOT of voltage the max is, as you have tasted, 2700...How you can explain this? ---> Obviously AMD don't select the "materia prima" nor the quality of assembly process in regarding of the selling price ---> this, to me, is not but ridicolous

The 175 cost 100+ Euro than a 170 :( ---> YES I hear the usual sages (from AMD?) that says "the chip run great @ stock clock so you cannot be complained..."

Ok they are right from a formal point of view, but MY point of view diverge a LOT from that: I can bet that half (the majority?) of Opteron that AMD have sold in the past 4 months are not running in workstations for the planning of spaceships but most likely in the "game room" of a rich child of 10 years or, if you prefer, on the desktop of some so-called "enthusiast" ---> DO YOU REALLY THINK THAT AMD DON'T KNOW THIS?

If they sold lot of Opteron I think is not due to their logo's appeal (maybe :D) but it is due to the ability of these CPU to satisfy demanding customers

NO ONE in this forum has acquired an Opteron to make it run @ stock clock, and the majority of the Opteron's owners in this forum has preferred this CPU over the X2 for the best ability (in media) to OC, we all know this ;)

Backing to the point I can conclude this way:

Being that all we know the factory specs of the CPU that we acquire, I think that AMD would have to change, at least in part, its attitude towards the "enthusiasts", not ignoring them (AMD can admit it or not, but they represent an important market if not the most important for their products, even more for their "serious" Opteron ;) ) but rather, openly coming encounter to the requirements, also proportionally to abilities to expense: I think that if I spend 800-1000 Euro for a 180+ I MUST obtain something more than the one that spend 500 euro for the 175 (and for more i don't mean a +1 in multi...:) ) ---> if I consider that every 165 (whichever stepping), costing nearly the half of a 175 can clock @ MINIMUM up to the 180 default clock there is something wrong to me.
The phisical limit for these CPU is about 3 Ghz (with "normal" cooling) and this is the real problem: it cannot exists the difference in performances that justifies the difference in price from the "low" to the "top" models ---> OK I hear "so simply buy the 165 dude!" but my point is another: I do not expect that AMD sells its products with the label "goes to 3Ghz" :D however, to me, seems reasonable that AMD reduces the prices in a way in compliance with the real differences in performance between the models or at least MUST put better effort and attention in the quality of materials and of the assembly line for "top" product that indeed have a "top" price

hardcore ocing people, like the ones in this forum, are a minority in comparison to everyone else that buys thier products. Alot of people dont even bother overclocking thier computer, so why should AMD start makeing sure that the higher models overclock more than the lesser ones?

Its not like you payed for x amount of speed and you got less than that.