Archived from groups: alt.comp.hardware.overclocking.amd (
More info?)
On Wed, 22 Sep 2004 17:33:35 +1200, "Michael Brown"
<see@signature.below> wrote:
>Augustus wrote:
>> <removespamandslimermilnespam@slimemagma.ca> wrote in message
>> news:g251l0du0lq1aqn711f4b255do0p3acvbd@4ax.com...
>>> Hello, all:
>>>
>>> Got a question. How do I identify a 3000+ Barton? Going to purchase
>>> one soon, and I would like to know what it looks like, or the
>>> relevant codes on the chip. I've been Googling for a while, and
>>> haven't had much luck.
>>
>> Any Barton 3000+ will look similar to this. Which I got in 2 secs by
>> doing an image search in google with "amd barton 3000+" as the
>> parameters.
>
>Actually, probably not
It'll look much closer to
>http://www.ocprices.com/ben/newamd/2400.jpg
>except the die will be slightly longer and thinner (see the die in Augugtus'
>post for reference). As far as what's on the little black label, you should
>see either
>AXDA3000DKV4E (200MHz FSB, runs at 2100MHz)
>or
>AXDA3000DKV4D (166MHz FSB, runs at 2167MHz)
>Which one is better for you depends on what motherboard and RAM you have
>(and of course the relative prices you can get them for
).
>
>
>The next line will look like AQXFA0335RPMW or similar. This is broken down
>like so:
>[] AQXFA = stepping. This doesn't matter quite so much as the ...
>[] 0335 = year/week, week 35 of 2003 in this case. The more recent the
>better pretty much.
>[] RPMW = date code. Not really important at all.
>
>For what it's worth, some people at Hexus.net think the order of steppings
>is roughly:
>AIUAA < AQUCA < AQXCA < AQXDA < AQXEA < AQZEA < AQXFA < AQFZA < AQYFA <
>AQYHA < AQZFA
>http://forums.hexus.net/archive/index.php/t-26161
>
>For the date code (which strictly includes the year/week part as well), it's
>decoded as
>{day}{assembly plant}{batch}{combining prohibited}
>[] Day: R, S, T, U, V, W, X = Mon, Tue, Wed, etc etc. M = mixed from
>multiple days.
>[] Assembly plant: always seems to be "P"
>[] Batch: A = first of the day, B = second of the day, etc etc. M = mixed
>from multipler batches.
>[] Wombining prohibited: To quote AMD: "On rare occasions, a W may be added
>to the date code to designate that combining wafer lots is prohibited.".
>Pretty much every (but certainly not all) Athlons have a W at the end.
>
>Unless you take the view that the machines slack off on a Friday afternoon,
>this doesn't really help you that much
>
>
>Finally, there's the third line which looks something like Y868817270142. I
>don't think anyone knows much at all about this line, except that it
>probably indicates which wafer it came from and where in the wafer this
>particular CPU was. Some people say that having the last 4 digits
>(supposedly the die number on the wafer, which is possible given the usually
>low number that is in here) as low as possible is good, but I don't think
>there's a lot of evidence to back that up. Pretty much it just serves as a
>unique identifier of the chip.
Thanks! I really needed the codes info, actually, to avoid getting
hornswoggled.
Regards,
Bob M.
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