Well, does period correct encompass what people actually bought that year? Because by late 2000, slot1 440bx was old news, as was the 100mhz fsb. If you were still running that platform, it was probably something like a Celeron 533a overclocked to 800mhz, or if you had just bought a Dell, maybe a 800mhz P3 on a 440bx. Otherwise, enthusiasts were typically going for the cheaper and faster AMD Athlon.

If in late 2000 you told someone that you just bought the fastest most expensive 100mhz fsb P3 for your 440bx, you would have probably gotten some funny looks.

pixel_workbench wrote on 2024-05-07, 19:38:

Well, does period correct encompass what people actually bought that year? Because by late 2000, slot1 440bx was old news, as was the 100mhz fsb. If you were still running that platform, it was probably something like a Celeron 533a overclocked to 800mhz, or if you had just bought a Dell, maybe a 800mhz P3 on a 440bx. Otherwise, enthusiasts were typically going for the cheaper and faster AMD Athlon.

If in late 2000 you told someone that you just bought the fastest most expensive 100mhz fsb P3 for your 440bx, you would have probably gotten some funny looks.

I know this exactly, and i already built an 1400mhz athlon for mid 2001, but it is terribly noisy and hot even with later, non period correct coolers/psu. So, athlon dropped.

100mhz could be a valid point, because how i mentioned - and it was the same scenario for me in 2000/2001 too - i need isa bus for my gus, and there are two options:
* use bx with 100mhz fsb
* use via

Currently i work on that, which would be the better option, prios:
1. p3b + 1000/100 slot1 + gf2 ultra for late 2000 => no cpu
2. cubx4 +1000/133 + gf2 ultra for late 2000 => in progress
3. p3b + 1100/100 slotket + gf3 for mid 2001 => in progress, but not really a top pc, too much compromise for 2001
4. apollo pro 133t + tualatin + geforce3 for early 2002 => i will build it, but out of the scope, i want a pre winxp pc, and also not a top pc

Previous builds to cover the win98 era:
1. kt7a + athlon 1400 + gf3 for mid 2001 => hot and noisy
2. p3b + 1000/133 slot1 + gf2gts for mid 2000 => works well, but i do not want to overclock a retro pc
3. P3b + 800/100 slot1 + gf256 ddr for early 2000 => it is ok, but the analogue output of the gf256 is not the best, and could be faster
4. P3b + 700/100 + gf256 sdr for late 1999 => slow for 32 bit gaming in 2000
5. P3b + 600/100 + tnt2 ultra for mid 1999 => slow

H3nrik V! wrote on 2024-05-07, 17:04:

arncht wrote on 2024-05-07, 16:25:

You can check the steppings on the cpuworld

Yeah, that's where I didn't seem to be able to find any cD0 1000/100 Slot 1

In the past I checked different available sources for info on Intel cpu's but I never ran into Slot 1 cpu's with a higher stepping than cC0. I collected the info in this spreadsheet:

i found the release date for the cumine 1100: it released just after the tualatin, around sept of 2001
https://akiba-pc.watch.impress.co.jp/hotline/ … i_b9pcb_11.html

Can someone explain (by marking numbers on P3 slot version), how to read manufacture date?
"Intel (R) (C) 00" for example - designed in 2000, as I understand it
Then, like @arncht explained, or, as I understand it
L040A536-0069 - Manufacured in 2000, 40th week. So, first digit after "L" letter means year, then second and third - week?
Q123A042-1334 - Manufacured in 2001, 23th week. So, first digit after "Q" letter means year, then second and third - week?

I have two slot 1 Cpus - 800/100 SL4S7 - 10270538
Katmai 550/100 SL3FJ - 10220202-0014
How to read manufacture date on theese cpu`s? I think i dont understand it correctly

2000. 27w
2000. 22w

Thanks, so second character means year. Not nice...
After searching the entire ebay for CPU slots 1000/133 and 1000/100, in ongoing and ended offers, I found only one CPU that was manufactured in 2000. I'm building a Slot 1 PC where for each part I have to have hard proof that it was manufactured no later than 2000. What is ruining my plans 😜

Wait a minute
how to uncode this piece? : )

the earliest 775 chipsets were still on 180nm, so those fabs ran for a while. coppermines have much smaller TDPs than the stuff that was current in 2005, so they probably had a good niche in POS or such. this was still some years before atom. though i do wonder if any were actually sold as retail upgrade processors and what that would have went for in 2005.

dulu wrote on 2024-10-27, 23:05:

Wait a minute
how to uncode this piece? : )

2005 31w, late cd0 stepping from 2001.
Mostly just the later tualatin boards and bioses support well, anyway it will work also eg in a p3b board with bioses from 2000.

dulu wrote on 2024-10-27, 22:21:

Thanks, so second character means year. Not nice...
After searching the entire ebay for CPU slots 1000/133 and 1000/100, in ongoing and ended offers, I found only one CPU that was manufactured in 2000. I'm building a Slot 1 PC where for each part I have to have hard proof that it was manufactured no later than 2000. What is ruining my plans 😜

Try to looking for the cc0 steppings, but they were very expensive cpus in 2000, and become cheaper in 2001. The chance to find something directy after the release with an early stepping, is very small (eg a ghz cpu with cb0).

My “top” p3 collection, what i used for the builds:
Katmai 600 from middle of 2000.
I have two cb0 700, 800, they are from the middle of 2000.
The cc0 ghz cpus from first part of 2001.

I have one katmai 600 from an authentic bx build from the late 99, early 2000. It is from 99.

How do you know that a given processor has stepping cb0, cd0, etc.?

dulu wrote on 2024-10-28, 17:05:

How do you know that a given processor has stepping cb0, cd0, etc.?

The universal method is searching in CPUWorld for the S-Spec number.

For Coppermine processors, however, it's quite more direct. Older steppings have the typical Pentium III logo in the front, lower section.

Whereas cD0 have that look of a Tualatin or coppermine-T without the heatspreader (like the photos on this post).

dulu wrote on 2024-10-28, 17:05:

How do you know that a given processor has stepping cb0, cd0, etc.?

Yep, from sspec.

https://www.instagram.com/p/C7uV-Ikt43d/

If you can do, it is worth to use the authentic stepping, some mainboards and/or bioses are not compatible with the newer unsupported steppings.

Check the bios description:
eg the p3b officially supported the cb0 cpus in 2000, which was the 850/100mhz (i never could find one)
* the cc0 supported with the late 2002 beta bios
* cd0 not supported at all, but there are some patched unofficial bioses
* i never had issue with this board, if i used a cc0 ghz slot1 version with the 2000 bios (my favorite setup)

the cuvx4 supports the cc0 in 2000
* the cd0 supported by the 2002 beta bios
* i have some issues with the 2002 bios in dos, weird freezes, but i guess it is not related with the cd0 stepping itself, anyway the cc0+2000 bios looked ok.