Need advice on a good AMD CPU..... [Archive]

kcnyc

02-20-2006, 10:08 PM

I did a search in the forum and realize there are so many threads on AMD CPU steppings. Too many to even read.

Can you guys tell me what a good 939 Opteron stepping that will do good on phase change? Thanks in advance......

Absolute_0

02-20-2006, 11:00 PM

CABYE stepping. CABQE/CAB2E/CACJE = coldbug
I've heard some CABNE are good and some are bugged, not sure.

If you meant dual core, the CCBWE should do pretty good, but some of them get the bug. CCB1E is definite coldbug.

I'm assuming single stage, -20c core temps.

Nanometer

02-20-2006, 11:03 PM

A friend of mine had a good CABNE that clocked really well at -25C. As Absolute 0 said, stay away from CCB1E and CCB2E because of cold bug.

kcnyc

02-21-2006, 08:53 AM

Thanks for the info guys. I am going hunting now..... :)

[XC] DragonOrta

02-21-2006, 09:25 AM

If you happen to come across a xxBHx stepping, that is one of the best for low temps. I'm pretty sure that they are really hard to find, but if you do, snatch it up.

nn_step

02-21-2006, 09:28 AM

CABYE..
and see if you can get a OSV or ASV instead of OSA or ASA.. I hear that they are rare but worth it...

ex2cib

02-21-2006, 09:40 AM

If you happen to come across a xxBHx stepping, that is one of the best for low temps. I'm pretty sure that they are really hard to find, but if you do, snatch it up.

its actually xxxHx stepping

99.9% of all the 90nm processors have a B for the 3rd digit, as most of the 130's have an A for the 3rd digit. there was one opty i saw that had a C there, that was strange, but its usually just the fourth digit

[XC] DragonOrta

02-21-2006, 10:39 AM

but don't all of the 130nm not have a coldbug?

nn_step

02-21-2006, 10:43 AM

but don't all of the 130nm not have a coldbug?
The 130nm didn't have the Coldbug but at the same time it ran alot hotter and didn't overclock as well

kiwi

02-21-2006, 10:51 AM

but don't all of the 130nm not have a coldbug?

They do have it (not sure if all) but at much, much lower temps :)

ex2cib

02-21-2006, 10:59 AM

i see what your are saying, but all new CPU's already are going to have B in them, so just look for the H as the 4th digit. trust me on this, i spent about an hour going through stephen's thread taking notes on each of the steppings

[XC] DragonOrta

02-21-2006, 01:57 PM

kcnyc

02-21-2006, 02:12 PM

I am mad confused now.......which is which? All with different steppings..........no agreeable stepping that is good for phase? or it is a trial an error thingy? Opteron Dual Core please........

Absolute_0

02-21-2006, 02:21 PM

Get 9 more posts real quick and have a look in the for sale section. If you want to go Dual Core, zinff just put a CDBHE 3800+ X2 up for $400, if that's in your budget. Says he got it from Perc, who go it to 3.3-3.4ghz in phase.

I doubt it was stable at 3.3-3.4, the best ones are 3.2 Ghz stable on phase (like Ben805's 0550UPMW on a GOOD single stage). 3.3-3.4 is obviously benching to suicide shot range. My CDBHE 3800+ X2 was 2.8+ on air and only good for 3.1 on phase...

And of course, you can get a NEW 3800+ X2 for 295$, and the new ones are LDBHE, which is just as good. I have seen some good results from 0601 and 0602 3800+s.

[XC] DragonOrta

02-21-2006, 02:30 PM

I am mad confused now.......which is which? All with different steppings..........no agreeable stepping that is good for phase? or it is a trial an error thingy? Opteron Dual Core please........

steppings that have xxxHx (;) ) are usually best for phase. steppings that have a number for the 4th value (xxx1x, xxx2x, xxx3x) are usually horribly coldbugged.

Cpt Twitchy

02-21-2006, 02:57 PM

Do you want dualcore or singlecore?

[XC] DragonOrta

02-21-2006, 03:56 PM

He said in his second post he'd like to get a DC opty.

kcnyc

02-21-2006, 04:53 PM

Yeah, I want a Dual Core Opty. Probably a 170.......

Any idea where to get these xxxHx stepping Optys?

[XC] DragonOrta

02-22-2006, 10:08 AM

I don't know about optys, but some people were getting LDBHE X2 3800s from Fry's, but that was a week or two ago. I'm not sure what they'd have now.

Cpt Twitchy

02-22-2006, 09:27 PM

Yeah, I want a Dual Core Opty. Probably a 170.......

Any idea where to get these xxxHx stepping Optys?
As far as I have seen only Manchester cores have the XXXHX code. I have seen no toledo's with the above mentioned code and have seen one 4000+

Sorry for not seeing that you wanted a DC opty.

kcnyc

02-23-2006, 04:58 AM

As far as I have seen only Manchester cores have the XXXHX code. I have seen no toledo's with the above mentioned code and have seen one 4000+

Sorry for not seeing that you wanted a DC opty.

Hmmm....now I am getting inconsistent info. lol I think I really have to dig into those long threads. :(

Fhqwhgads6680

02-23-2006, 05:18 AM

If ya want DC Opty the only Steeping I have personally Seen is with the BW mem controller....The BH controllers are only on 512k l2 cache cores (manchesters) I haven't been keeping up to date tho.... From what I hear the BW's are kinda hit and miss with cold bug depending on how good the cooling unit is and the chip itself, but I have heard that a large majority of the BH chips do very well on Phase, and even DICE. Really tho, its best to get one from someone who has tested cause then you have some idea of what it'll do....Check the FS section often, ya got enough posts now.... GL MAN!

Rhymers

02-23-2006, 06:07 AM

If you haven't yet, check ou this thread. No idea though how this stepping does usually, it's a CCBWE 0530. Peace
http://www.xtremesystems.org/forums/showthread.php?t=89776

s7e9h3n

02-23-2006, 06:23 AM

kcnyc

02-23-2006, 08:23 AM

http://www.xtremesystems.org/forums/showthread.php?t=87182

Read this thread - it should give you all the info you need ;) I think I need to get this thread stickied since everyone's still asking the same questions. It seems as if my hard work is going to waste :p:

Damn good idea man.......

And thanks to all of you who replied, really appreciate the info. Now I know what to look out for. I am from the Dark Side (Intel) lol, so I am going to uncharted territories now. :)

mursaat

02-23-2006, 10:25 AM

its actually xxxHx stepping

99.9% of all the 90nm processors have a B for the 3rd digit, as most of the 130's have an A for the 3rd digit. there was one opty i saw that had a C there, that was strange, but its usually just the fourth digiti see what your are saying, but all new CPU's already are going to have B in them, so just look for the H as the 4th digit. trust me on this, i spent about an hour going through stephen's thread taking notes on each of the steppingsI've got a 146 CACJE 0601 GPAW, and don't think CACJE is so rare. Maybe I've got one of those 0.1%? :D

ex2cib

02-23-2006, 10:32 AM

I've got a 146 CACJE 0601 GPAW, and don't think CACJE is so rare. Maybe I've got one of those 0.1%? :D

yea, thats one of the rare ones, if you go through any CPU stepping thread and look at the CPU's, 99% of the time, all the ones with A in the 3rd digit will always be newcastles, clawhammers (130nm chips), those with B's are winchesters, venices, san diego's, etc (90nm chips)...but chips like yours just make me want to scratch my head:confused:
edit: might be something about the opties that are different, havn't seen any san diego's with a C, only opties once again :confused:

i think it might all be part of an evil plot by amd to hide the meaning of their CPU steppings from us, what do you think about that stephen?:D

Cpt Twitchy

02-23-2006, 05:21 PM

Hmmm....now I am getting inconsistent info. lol I think I really have to dig into those long threads. :(
I actaully found out today taht all X2's have had a xxxHx in the coding but ones with 1meg cache are very rare. A friend of my found a FX60 of one and I cannot wiat to see what he does wiht it :woot:

s7e9h3n

02-23-2006, 05:36 PM

yea, thats one of the rare ones, if you go through any CPU stepping thread and look at the CPU's, 99% of the time, all the ones with A in the 3rd digit will always be newcastles, clawhammers (130nm chips), those with B's are winchesters, venices, san diego's, etc (90nm chips)...but chips like yours just make me want to scratch my head:confused:
edit: might be something about the opties that are different, havn't seen any san diego's with a C, only opties once again :confused:

i think it might all be part of an evil plot by amd to hide the meaning of their CPU steppings from us, what do you think about that stephen?:D
That third letter is still somewhat a mystery to me. At first I thought it may be part of the memory controller revision, and although it kinda worked out, it still wasn't solid. Then I noticed that that letter changed exactly at the same time the die shrink from 130nm -> 90nm happpened, but that doesn't help explain the "c" cpu's we see now. Still working on theories....

@Cpt Twitchy -Not all x2's have had the "H" in the stepping. Only the Manchesters did up till now. Yup, get ready....cuz the CCBHE FX60 is coming :woot:

Cpt Twitchy

02-23-2006, 05:44 PM

@Cpt Twitchy -Not all x2's have had the "H" in the stepping. Only the Manchesters did up till now. Yup, get ready....cuz the CCBHE FX60 is coming :woot:
Oops my bad :p: I mis interretted and yes a CCBHE is on the way and will be very lethal in the hands of one of the first owners ;) s7e9h3n knows to and if not :eek:

Coroner Kyle

02-27-2006, 12:07 PM

How long for the BH FX-60's?

Cpt Twitchy

02-27-2006, 05:24 PM

How long for the BH FX-60's?
I only know of one person with one or he has it reserved, Haven't talked to him lately about it in case he picked it up and I know of one other with an order placed for one. Where I dunno but those are the only 2 I know of and I also have no clue when and where or if they will be bundantly available.

kcnyc

02-28-2006, 09:38 AM

I only know of one person with one or he has it reserved, Haven't talked to him lately about it in case he picked it up and I know of one other with an order placed for one. Where I dunno but those are the only 2 I know of and I also have no clue when and where or if they will be bundantly available.

And moreover, it is not even proven to be good on phase right? Wait till those guys do some testing before plunking down your money. :)

Cpt Twitchy

02-28-2006, 04:58 PM

And moreover, it is not even proven to be good on phase right? Wait till those guys do some testing before plunking down your money. :)
Yeah the 1meg per core CCBHE chips havent been tested on phase yet but all the manchesters with BH handle the cold like no other amd chip out their.

kcnyc

02-28-2006, 05:25 PM

Yeah the 1meg per core CCBHE chips havent been tested on phase yet but all the manchesters with BH handle the cold like no other amd chip out their.

All I can say is when it comes to overclocking, it is never guaranteed. :D
The hardware you get is all trial and error, sometimes you get a good, sometimes you don't. That is why some people buy like 10 chips just to test them out and keep the ones which are good.

Cpt Twitchy

02-28-2006, 05:37 PM

All I can say is when it comes to overclocking, it is never guaranteed. :D
The hardware you get is all trial and error, sometimes you get a good, sometimes you don't. That is why some people buy like 10 chips just to test them out and keep the ones which are good.
100% true. It sjust nice to be buying a more promising stepping.