To identify Pentium Pro, Pentium II and Celeron OEM part numbers please see the page Identification of modern Intel microprocessors.
Pentium Pro boxed processors identification
| 1 |
2 |
3 |
|
4 |
|
| BP |
80521 |
200 |
|
256K |
|
| |
|
| 4. Size of L2 cache |
| 256K |
|
256 KB |
| 512K |
|
512 KB |
| 1M |
|
1 MB |
| |
| |
|
3. Frequency |
| 133 |
|
133 MHz |
| 150 |
|
150 MHz |
| 166 |
|
166 MHz |
| 180 |
|
180 MHz |
| 200 |
|
200 MHz |
| |
| |
|
|
2. Processor core |
| 80521 |
|
Pentium Pro |
| |
| |
|
|
|
1. Package type |
| BP |
|
Modified staggered ceramic PGA |
Pentium II (SECC package) identification
| 1 |
2 |
3 |
4 |
5 |
|
| B |
80523 |
333 |
512 |
E |
|
| |
| 5. ECC support |
| Blank |
|
No ECC support |
| E |
|
ECC is supported |
| |
| |
4. Size of L2 cache (KB) |
| 256 |
|
256 KB |
| 512 |
|
512 KB |
| |
| |
|
3. Frequency |
| 200 |
|
200 MHz |
| 233 |
|
233 MHz |
| 266 |
|
266 MHz |
| 300 |
|
300 MHz |
| 350 |
|
350 MHz |
| 400 |
|
400 MHz |
| 450 |
|
450 MHz |
| |
| |
|
|
2. Processor core |
| 80522 |
|
Klamath core (0.35 micron) |
| 80523 |
|
Deschutes core (0.25 micron) |
| |
| |
|
|
|
1. OEM/Retail version |
| B |
|
Boxed version |
Pentium II markings (SECC2 package) identification
| 1 |
|
2 |
|
3 |
|
4 |
|
5 |
|
| 400 |
/ |
512 |
/ |
100 |
/ |
2.0V |
|
S1 |
|
| |
|
|
|
|
| 5. Package type |
| S1 |
|
Slot 1 cartridge |
| |
| |
|
4. Operating voltage |
| 2.0V |
|
2.0V |
| |
| |
|
|
|
3. Bus frequency |
| 100 |
|
100 MHz |
| |
| |
|
|
|
|
|
2. Size of L2 cache (KB) |
| 512 |
|
512 KB |
| |
| |
|
|
|
|
|
|
|
1. Frequency |
| 350 |
|
350 MHz |
| 400 |
|
400 MHz |
| 450 |
|
450 MHz |
Mobile Pentium II and Celeron processors identification
| |
1 |
2 |
3 |
4 |
5 |
|
| PM |
D |
300 |
05 |
001 |
AA |
|
| |
|
| 5. Processor revision |
| ES |
|
Engineering sample |
| QS |
|
Qualification sample |
| Other letters |
|
Production revision (starts from AA) |
| |
| |
4. Design revision (starts from 001) |
| |
| |
|
3. Cache size |
| 01 |
|
128 KB |
| 02 |
|
256 KB |
| 05 |
|
512 KB |
| |
| |
|
|
2. Frequency |
| 233 |
|
233 MHz |
| 266 |
|
266 MHz |
| 300 |
|
300 MHz |
| 333 |
|
333 MHz |
| 366 |
|
366 MHz |
| 400 |
|
400 MHz |
| 433 |
|
433 MHZ |
| 466 |
|
466 MHz |
| |
| |
|
|
|
1. Module type |
| D |
|
Pentium II mobile module (MMC-1) |
| E |
|
Pentium II mobile module (MMC-2) |
| F |
|
Pentium II with on-die cache mobile module (MMC-1) |
| G |
|
Pentium II with on-die cache mobile module (MMC-2) |
| H |
|
Celeron mobile module (MMC-1) |
| I |
|
Celeron mobile Module (MMC-2) |
Celeron boxed processors identification
| 1 |
2 |
3 |
4 |
5 |
|
| BX |
80523 |
R |
333 |
128 |
|
| |
| 5. Size of L2 cache |
| 000 |
|
The processor doesn't have L2 cache |
| 128 |
|
128 KB |
| |
| |
4. Frequency (MHz) or frequency identifier (if less than 266) |
| |
| |
|
3. Processor features/Package type? |
| F |
|
FC_PGA or FC_PGA2 |
| P |
|
Plastic PGA package |
| R |
|
SEPP package |
| |
| |
|
|
2. Processor core |
| 80523 |
|
Covington core (0.25 micron) |
| 80524 |
|
Mendocino core (0.25 micron) |
| 80526 |
|
Coppermine core (0.18 micron) |
| |
| |
|
|
|
1. Packaging |
| BX |
|
Boxed processor |
Celeron PPGA CPU markings identification
| 1 |
2 |
3 |
4 |
|
5 |
|
| FV |
524 |
RX |
333 |
|
128 |
|
| |
|
| 5. Size of L2 cache |
| 128 |
|
128 KB |
| |
| |
4. Frequency (MHz) |
| |
| |
|
|
3. Bus speed |
| RX |
|
66 MHz |
| P |
|
66 MHz (for boxed Celeron PPGA processors) |
| |
| |
|
|
|
2. Processor core |
| 524 |
|
Mendocino core (Celeron, 0.25 micron) |
| |
| |
|
|
|
|
1. Packaging |
| FV |
|
OEM/Tray processor in staggered plastic PGA package |
| B |
|
Boxed processor in staggered plastic PGA package |
| 