AMD 2600XP +

[Fun]

Salve, io oggi ho acquistato questo bel procio AMD 2600XP +

Ecco i suoi dati:
AXDA26000KV3D 9760805260018
AIUHB 0303VPBW

Io credo sia uno stepB a 333 MhZ di bus!!

Ditemi per esempio se ho ragione e se il procio e sbloccato di fabbrica o se la mia Asus A7N8X Deluxe (rev 2.0) sblocca il procio.

Poi a quanto posso salire con un sistema a liquido e delle ram pci 3200 della Twinmos (chip Mtec ...50B)

[SPhinX]

Allora il procio è proprio un thoro step b (come tutti i 2600+ thoro )
Anche se fosse bloccato di fabbrica la tua mobo lo sblocca tranquillamente.
Le ram mi sembra che salgano abbastanza quindi Buon OC

[Fun]

Ok sono contentissimo, che dici a quanto posso arrivare? A una domanda, ma cosa hanno cambiato nella Asus A7N8X Deluxe Rev 2.00? Che dici è più spinta nell' OC confronto alla rev 1.4?

Grazie

[OverClocK79®]

il NB
ossia ora hai l' NFORCE2 ULTRA 400


l'ultima rev che supporta ufficialmente il bus 400
e chiaramente anke di +

BYEZZZZZZZZZ

[Fun]

Azz allora ho sula mia MB l' nForce Ultra 400? Che figata!!! Mi come mi devo sbizarrire nell OC!! Visto che lunedì mi arriva il raffr. a liquido!!!
Che dite a quanto arriverà? Per le ram sono scritte sopra!

[leadergl]

dal mio piccolo ti posso consigliare di procedere così:

prima di tutto lasci il valore del FSB invariato e sali col moltiplicatore pian piano, quando vedi che non ti si riavvia o win nn è stabile alzi di conseguenza il Vcore dalla CPU........questo fino a quando non ti sembra d'aver raggiunto il limite in mhz della tua cpu!

Dopo, se ad esempio sei arrivato kesso a 166x20 che fa 3333Mhz cerchi di avere lo stesso risultato circa, diciamo 3000Mhz, mantenendo quanto più BASSO possibile il moltiplicatore e quanto più ALTO possibile il FSB!!

[kikbond]

Originally posted by "leadergl"

dal mio piccolo ti posso consigliare di procedere così:

prima di tutto lasci il valore del FSB invariato e sali col moltiplicatore pian piano, quando vedi che non ti si riavvia o win nn è stabile alzi di conseguenza il Vcore dalla CPU........questo fino a quando non ti sembra d'aver raggiunto il limite in mhz della tua cpu!

Dopo, se ad esempio sei arrivato kesso a 166x20 che fa 3333Mhz cerchi di avere lo stesso risultato circa, diciamo 3000Mhz, mantenendo quanto più BASSO possibile il moltiplicatore e quanto più ALTO possibile il FSB!!

3333mhz??? ..e con che???con un reattore nn con un processore....

[leadergl]

eh mammamia era per fare un esempio!!!!!
E' normale che a 3333MHZ non ci arriverà mai con un XP....ma per far capire andava bene!!!

[Fun]

ok appena lunedi mi arriva il raffr. a liquido smanetterò su questa MB!! Poi vi farò sapere i risultati!! Speriamo che questo sia un procio fortunato!!

[Fun]

Raga guardate cosa ho letto:

1) Le settimane migliori sono 030x dove x è 2,3,4,7,9 o 10

2)L'ultima sigla funziona così...es. MPMW, quanto più la 3a lettera si avvicina alla A meglio è..cmq MPMW è già ottimo!!!

Beh commentate voi la mia cpu:

AIUHB 0303VPBW

Esprimete i vostri pareri!!

[Crystal]

asd sei stato il 2 cliente della amd? cmq secondo me è na cazzata

[Fun]

O io così ho letto, se ciò corrisponde a verità allora il mio procio e una bomba!!!

[JAN THE LAST]

Originally posted by "Fun"

O io così ho letto, se ciò corrisponde a verità allora il mio procio e una bomba!!!

Ci dai il link da dove hai letto cosa affermi, plz?

Thanks

[leadergl]

X FUN

Ma la tua CPU non è un 1700+ vero??

Comunque per le info leggete questo...c'è tutto!!!

E poi non dite che non sono buono e gentile

Ask any production manager and they will tell you that, its common practice to try to keep the number of production lines in a plant to the lowest possible number. It is not only much more because effective, it also keeps equipment maintenance to a minimal. Now put this concept at a microchip fabrication plant, and what happens is high grade processors are mass produced in possibly a single production line, and then sold as different products. While this isn't exactly breaking news, it isn't always that easy to know what production line the chip was originally designed at. More than often, higher production processors are down marked in order to fulfill higher demands and also to keep the production lines at a minimal.


0.13 micron 1700+ Thoroughbred B Athlon XP
AXDA1700DUT3C 9361333260383 JIUHB0302XPCW 1999 AMD

Part I : AMD CPU Identification
AMD Processor Ordering Part Number (OPN) Breakdown
Processors are identified by markings known as Ordering Part Number (OPN). The OPN identifies the processor and its specifications.

Processor Core Architecture/Brand Name:
These alpha characters define the core architecture of the processor.


Model Number:
This four digit numeric field defines the speed of the processor in megahertz or Model Number as appropriate.


Package Type:
This single alpha character defines the package type for this device.


Operating Voltage (Nominal Core Voltage):
This single alpha character defines the voltage for this processor.


Maximum Die Temperature:
This single alpha character defines the maximum die temperature for this processor.


Maximum System-Bus Speed:
This single alpha character defines the maximum System-Bus speed for this processor.


So there you have it. If it all sounds a little too complicated, here is a brief explanation. The above processor pictured is marked AXDA-1700-D-U-T-3C. From the above table you can derive that AXDA is a 0.13 micron processor, 1700 is its rated speed, D means it’s an OPGA packaging. The following U says that it runs at a default Vcore of 1.6v. The T gives it a maximum die temperature of 90C, the 3 determines the cache size which in this case is 256KB while the C at the end means it runs at a maximum bus speed of 266MHz.
By solely reading the above codes won't really be able to help you determine how good a chip is. The above information is already available in quite a few websites and was even made available at AMD.com so that you would be able to know the rated speed of the processor without ever having to power it up.
Now to the important part that isn't common knowledge, but is based on experimentation on different batches of these processors. The earlier 1700+ that hit the market came with (UT3C) markings, which meant they ran at a default voltage of 1.6v. The later versions however run at a much lower 1.5v (LT3C). As we might all already know, the minimal voltage requirement is always needed in order for the processor to work without any problems, so in order to be able to drop a whole 0.1v of the voltage requirements, there has to be some kind of redesign of the chip - or, it just could be that the chips were designed to run at 1.6v at higher speeds, and when it is down clocked, so does the power requirements. The later versions of the new Thoroughbreds (0307-0310) all run at a default voltage of 1.5v and amazingly are able to hit 2GHz (2400+) without any additional voltage. More on this later.

Part II : Stepping Codes
Below are a few reference 1700+ Thoroughbreds stepping codes for reference:
AXDA1700DUT3C 9367337260464
JIUHB0302WPMW M © 1999 AMD

AXDA1700DLT3C 9391257270022
JIUHB0310XPMW M © 1999 AMD

And also a 2100+ Thoroughbred stepping code
AXDA2100DUT3C 9397647280017
AIUHB0301SP1W M © 1999 AMD

Bear in mind the below stepping codes:-

JIUHB - Thoroughbred B core, So-called J Thoroughbred for low end model.
AIUHB- Thoroughbred B core, So-called A Thoroughbred for high end model.
From our personal findings, the purity of the centre wafer will determine the high end model of a CPU. Higher end models are then called an A Thoroughbred while the lower end one is called the J Thoroughbred. AMD even had produced R Thoroughbred and K Thoroughbred for Revision A. But so far they do not exist in Revision B.
For the time being we should get a JIUHB with later production date because they have a greater chance to be overclocked compared to AIUHB's with earlier production date.

In General: A > J > K > R
A is better then J, and K and R follow respectively. There have not been any AIUHB Revision B's, so the next highest grade is the JIUHB.


Part III : Production Year
0302: Year 2003 production, made during the 2nd week of that year.
0301: Year 2003 production, made during the 1st week of that year.

For Thoroughbred 1700+ B, the best production in terms of overclockability is 0302, 0304, 0307, 0309 and 0310 (for the time being).
Regarding the second part of the 2nd line which consists of “1999 AMD”, it actually means the registration year of copyright of AMD Athlon trademark, not related to the production timeframe.

Note :
Later production should be better than previous production, but not absolutely true because of the quality of wafer may not as good as the previous one.


Part IV : Batch Codes
WPMW, SP1W, XPMW, XPCW, MPMW have no special meaning for end-user, but according to the AMD Athlon XP Thoroughbred B Datasheet, the Third alphabet out of these 4 alphabets represents the number of production run/batch on a particular production date. For example, A represents the first batch of product on that week, B is the second batch, and C is the third batch and so on;

It therefore can be said the first few batches have the best quality and purity, made from the purest wafer and finest assembling.
Other than A, B, and C, M represents the combined lots from many batches which cannot pass the Quality test (QC) for labeling as higher model like 2700+ but still can be marked as 2400+ for example.

Other than M, they are many alphabets out there e.g. R, I, S, and even digits like 1 to 9. Codes with digits are deemed to be one of the poorest quality wafers, like SP1W. They have been combined and re-combined again after abandoning the poorer one from other batches. They are not finished at one go, instead they are finished after several runs of producing, which means they may fail the QC and passed to re-labeling line (Just my guess.)

That's why, those with codes like SPAW, XPCW and WPCW can be overclocked to unexceptional levels even with default voltage!!

Update:
Besides the 3rd alphabet, the 1st alphabet happens to have the same characteristic, which means the overall overclockability of one particular batch will have the following scenario:

MPMW > UPMW > WPMW > XPMW

This "secret" had been revealed from production from week 0302 and 0310.

Note:
We should compare one particular batch code with other batch code in the same production week, instead of comparing week 2 to week 9 due to the yielding of CPU with higher overclockability will increase from time to time.


Part V : Die Color
The color of the die/core also plays an important part in determining how well the CPU overclocks.

I can summarize this with 3 main categories:

i) Reddish/Purple from all angles of views
They are average in overclocking, mostly can run @ 2GHz 2400+ with 1.6v default voltage, but still can perform well if you add higher voltage.



ii) Mixed with variety of colors:-
The overclockability varies a lot. Can be very good or very bad. Can be as poor as 2GHz 2400+ with 1.85v at least, or 2200MHz with 1.65v only.



iii) Reddish/ blue core with reflective white under light
They are awesome overclockers. Can run at 2100MHz - 2250MHz using default voltage. Grab it on sight!!!



It's common that the color of die cut from center part of wafer is very even, consistent, smooth and not mixed with other colors under light. So can be said it is not necessary to have a big red die, a green or white die color can be good also if the color is solely in single color.
The thickness, purity of material used also affects the color of die a lot. Please take note that we should pick up one with outstanding die color among the others (if you are going to purchase tray version) with the indications shown above.


Part VI : Color of Base
Whether it is green or brown base doesn't matter. It's just the color of the OPGA packaging base.


Part VII : Special Coding (Assumption)
Now is the most important part of choosing a good Thoroughbred:-

Examples :
9367337260464
9397647280017

The digits "26" and "28" actually carry certain meaning.
You might be able to guess it already. In our opinion after reading more than 50 personal reviews of Thoroughbred is:-

"26" means it is a downgraded version from 2600+ Thoroughbred.
"28" means it is a downgraded version of 2800+ Thoroughbred.

Believe it or not, those CPU with "26", "27" or even "28" tested to be stable at that particular speed with default voltage 1.65v, or even 1.525v which is fantastic !! That's why with the awesome cooler and extreme voltage, they can be overclocked to very high degree like more than 3000+ (2.4GHz).

In general these are the only codes appear in Thoroughbred B 1700+, assuming that:
24 = 2400+ 2.0GHz 266FSB
25 = 2500+ (Supposingly should be 2GHz Thoroughbred with 166FSB but not exist!!)
26 = 2600+ 2.083GHz 333FSB or 2.13GHz 266FSB 27 = 2700+ 2.17GHz 333FSB
28 = 2800+ 2.25GHz 333FSB

Apparently, these digits in the marking of AMD Athlon XP “Thoroughbred” CPUs that describe the speed this particular CPU was designed to work at but was later “downgraded” or maybe even “upgraded” in certain cases. Take a look at the example of how the Athlon XP “Thoroughbred” processors are marked:



Based on many hands on observations, the 8th and 9th marks (these should be numbers, as shown below) in the second line of the sticker describes the initial speed the processor was designed for (RFBEXR2280073). If the initial model number is higher than the number you have, it means that your processor has been downgraded.

To be more precise, that “downgraded” in the sense that means that the CPU was not able to maintain full stability at the given rating with default voltage, so it was remarked to a lower model number. For example, 1700+ downgraded from 2400+ means that this CPU cannot work at 2400+ with core voltage 1.6V, but it can probably hit this and maybe even higher frequencies with voltage increase.
There are rumors that AMD re-stamped the markings of some high-speed CPUs to fulfill the huge demand for lower-speed ones (mostly 1700+ and 2100+), if this is your case, then the CPU should be able to work stable at least 2400+ with the default voltage. I think it firstly concerns AMD Athlon XP “Thoroughbred” processors with B0 stepping that have much higher overclocking potential compared to A0 chips.

Update:
These 2 digits are the laser marker ID and used for chip tracing according to a friend who works in AMD Singapore Fabs. But we don’t quite understand the actual meaning of “chip tracing” as from what we know, the earlier production of Athlon like Thunderbird, Palomino do not have these extra 2 digits.

Maybe those CPU with one particular code for example 24 was originally designated to be made for 2400+ model.
But due to failure of achieving that speed, it will be remarked to lower model. So whether that CPU can hit 2400+ or not with default voltage doesn't help...because it has a great chance that won't run at that speed with default voltage at all..
We should treat these 2 digits as for reference only, because not 100% of the 28 chips can run at 2800+ !!
Bear in mind that the maturity and purity of wafer also affect a lot in performance. Coding will be the 2nd consideration after confirming which core is better by your eyes... o your 6th sense..
Anyway to be safe, you should pick one Thoroughbred with 25,26,27 code instead of 24 and 28 because we have no idea which is really the best one. Judging by our experiences after reviewing more than 50pcs Thoroughbred B 1700+ with different batch and production timeframe, code 25, 26, and 27 have less “disappointment”.
From the view of statistic:
Sigma Square=difference with the average value
Mean: Average Value
Hence I have to assume that:-
IF Sigma Square(the smallest code 24, OR the biggest code 28), then disappointment OR satisfactory will be higher.
IF code = OR near to mean(25,26,and 27), the chances to get a good chip are higher, IF can get unexceptional best or worst result, you still won’t lose your confidence to buy another one again…
Since there are too many Thoroughbred 1700+ CPU out in the market, we can only give our assumption based on sampling and average from own experiences and others personal reviews, so please, don’t flame others or us if your 28 can run at super duper speed!!
It was revealed that even if the information is misleading, the processors worked fine at the “initial” speed with Vcore increase.
IF you feel that we are bluffing people, please ignore this part.



Part VIII : Batch Production Serial Number
Here's one example, focus on the underlined digits:-

AXDA1700DUT3C 9361333260135
JIUHB0302 XPCW M © 1999 AMD

The first underlined 7 digits are guessed to be:-
i) The serial number of wafer.
ii) The grading code of CPU core.
Which really does not carry any meaning to consumer, unless got certain batch which had been proven to be very overclockable, then we can easily make our comparison.

Meanwhile, the last 4 digits means the batch production serial number of CPU in one batch of production, all CPU with 0001 - 0300 will relatively have very high chance to be overclocked at higher speed than others.

My own assumption, the best production will be carrying the code:-
XXXXXXXYY0001

Who has bought it???????? Our site admin se7en got one 270001…

Update:
This batch serial number has less and lesser influence over the overclockability of later DLT3C (1.5v version) of Thoroughbred B due to the surprisingly improvent of production yield. Supposingly, the center part of wafer happens to be the purest, however nowadays the whole part of one particular wafer will have identical overclockability and the only limitation will be the bottleneck of pushing up the clock speed due to 0.13micron fabrication process.
However, there are still many region out there can only get UT3C 1.6v version. If that is the case, this batch serial number should be taken into consideration.
If your local hardware dealer cannot get any DLT3C with 0001 serial number, please, just close your eyes to grab your desired one. You are the luckiest guy out from so many PC DIYers –Pay less, but get the best one.



Part IX : Conclusion
By using this example, I can summarize that:-


This is the 135th CPU out of the lot of XPCW batch, assembled in the 3rd production run ("C") during the second week of year 2003, CPU core cut from the J part of wafer with serial number 9361333, with batch code JIUHB, using the 0.13 micron process technology, with code name Thoroughbred Revision B, runs at standardized 1.6v default voltage.
It was labeled as model 2600+ but now it will be sold as model 1700+.


The common characteristics of Lower Clocked Thoroughbred B CPU:-
-Can run well at FSB more than 200MHz (DDR400)
-Requires as low as 1.4v or max. 1.8v to run stable at 2GHz 2400+
-Very low heat dissipation if running with default voltage
-Have very high potential of breaking 2250MHz 2800+ barrier if using more than 1.9v for 1.6v version
-Have very high potential of breaking 2400MHz 3100+ barrier if using more than 1.9v for 1.5v version


Until today 8rd April 2003, the most overclockable Thoroughbred JIUHB 1700+ are as follow:-




I myself will have the following considerations before buying a good CPU, the more important consideration comes first:-

• Must be a Thoroughbred B (AIUHB, JIUHB)
• It is better to choose a LT3C over the UT3C for Thoroughbred B.
• Die color has to be in single color, consistent, light reflective.
• The batch production serial number of CPU should be as small as possible, e.g. 0001.
• Production date and stepping code must be as latest as possible.
• Choose a “27” ,”25”, “26” instead of “24” and “28”.
• Production batch alphabet should be as earlier as possible, like A instead of M
• Read more from others’ experience before you purchase your desired one.
• May God bless You!!

As an overclocker of AMD processor for past 5 years, I had never seen any of the other processors had better price/performance ratio and overclock potential. As a DIY market consumer we should appreciate what AMD had done for these few years. Don’t blame AMD or others if you have purchased a Thoroughbred B 1700+ which can only be overclocked to 2400+ ---After all you have already saved a few hundred bucks!!

[Fun]

No e un 2600+!!

[leadergl]

cmq FUN fai qualche test e facci sapere come va..ok?

[Fun]

Ok, lunedì mi arriva il raffr a liquido e vi faccio sapere!!

[Fun]

Dai che lunedì si avvicina!!!

[Exelcius]

Ciao a tutti! Sfrutto il nome del thread per chiedervi un'informazione riguardo il 2600+: avevo intenzione di comprare il 2500 + Barton, ma a quanto pare, qui a Torino, sembra che sia esaurito...quindi sono passato al 2600+...ora vi chiedo: secondo voi è meglio il 2600+ core Barton o no? Cosa mi consigliate? Andrebbe montato su una MSI K7N2 Delta ILSR
...GRAZIE mille...

Federico

[kikbond]

Originally posted by "Exelcius"

Ciao a tutti! Sfrutto il nome del thread per chiedervi un'informazione riguardo il 2600+: avevo intenzione di comprare il 2500 + Barton, ma a quanto pare, qui a Torino, sembra che sia esaurito...quindi sono passato al 2600+...ora vi chiedo: secondo voi è meglio il 2600+ core Barton o no? Cosa mi consigliate? Andrebbe montato su una MSI K7N2 Delta ILSR
...GRAZIE mille...

Federico

secondo me meglio il 2600+ poi fai te..dipende a cosa ti serve..