The ChipList, by Adrian Offerman; The Processor Portal

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Model Code Stepping Description
Intel Pentium II Xeon 450 512KB CPU SL354 B1 L2 cache ECC cannot be disabled

Intel Pentium II Xeon processor (Drake)

Identification


Model name: Pentium II Xeon.
Code name: Drake.
Supplier: Intel.
Component class: CPU.

Generation


Generation: Pentium II.

Compatibility


Multimedia instruction sets: MMX.

Cache


L1 cache: 16 kbyte instruction cache, 16 kbyte data cache (Harvard architecture).
Full-speed off-die L2 cache: 512 kbyte, 1 Mbyte, or 2 Mbyte.

Architecture


100 MHz Front-Side Bus (FSB).

Multi-processing


Symmetric Multi-Processing (SMP):

  • max. 2-way, using Intel 440GX chipset,
  • max. 4-way (from January 5, 1999), using Intel 450NX chipset,
  • max. 8-way, using Intel 450NX chipset with additional logic.

Multiplier


Clock speed


Clock speed Model Cache Multiplier Power dissipation Introduction Order part numbers
100/300 MHz Intel Pentium II Xeon 300 1MB CPU 1 Mbyte L2 3     OEM: 80523KX3001M,
never released
100/300 MHz Intel Pentium II Xeon 300 2MB CPU 2 Mbyte L2 3     OEM: 80523KX3002M,
never released
100/350 MHz Intel Pentium II Xeon 350 512KB CPU 512 kbyte L2 3.5     OEM: 80523KX350512,
never released
100/350 MHz Intel Pentium II Xeon 350 1MB CPU 1 Mbyte L2 3.5     OEM: 80523KX3501M,
never released
100/400 MHz Intel Pentium II Xeon 400 512KB CPU 512 kbyte L2 4 30.8 W TDP June 1998 OEM: 80523KX400512,
PIB (440GX chipset): BX80523KX400512,
PIB (440GX/450NX chipset): BX80523KX40N512
100/400 MHz Intel Pentium II Xeon 400 1MB CPU 1024 kbyte L2 4 38.1 W TDP June 1998 OEM: 80523KX4001M,
PIB (440GX chipset): BX80523KX4001M,
PIB (440GX/450NX chipset): BX80523KX40N1M
100/450 MHz Intel Pentium II Xeon 450 512KB CPU 512 kbyte L2 4.5 34.5 W TDP October 1998 OEM: 80523KX450512,
PIB (440GX chipset): BX80523KX45G512,
PIB (440GX/450NX chipset): BX80523KX450512
100/450 MHz Intel Pentium II Xeon 450 1MB CPU 1 Mbyte L2 4.5 42.8 W TDP January 1999 OEM: 80523KX4501M,
PIB: BX80523KX4501M
Clock speed Model Cache Multiplier Power dissipation Introduction Order part numbers
100/450 MHz Intel Pentium II Xeon 450 2MB CPU 2 Mbyte L2 4.5 46.7 W TDP January 1999 OEM: 80523KX4502M,
PIB: BX80523KX4502M

Physics


Voltage: 2.0 V.

Temperature: 0-75 °C.

Manufacturing process: 0.25 micron.

Number of transistors: 7.5 million.

Die size:

  • 131 mm2 (P856),
  • 118 mm2 (P856.5: 5% linear shrink).

Packaging: Slot 2.

CPUID32


Type Family Model Stepping Description
0x0 0x6 0x5 0x2 stepping B0
0x0 0x6 0x5 0x3 stepping B1

Step level


Text:

Step levels: B0, B1.

S-Spec / Stepping code


Model Code Stepping Description
Intel Pentium II Xeon 300 1MB CPU Q246 ES  
Intel Pentium II Xeon 300 2MB CPU Q247 ES  
Intel Pentium II Xeon 350 512KB CPU Q515 ES  
Intel Pentium II Xeon 350 1MB CPU Q429 ES  
Intel Pentium II Xeon 350 1MB CPU Q509 ES  
Intel Pentium II Xeon 400 1MB CPU Q619 ES  
Intel Pentium II Xeon 400 1MB CPU SL2NB B0  
Intel Pentium II Xeon 400 512KB CPU Q519 ES  
Model Code Stepping Description
Intel Pentium II Xeon 400 512KB CPU Q626 ES  
Intel Pentium II Xeon 400 512KB CPU SL2RH B0  
Intel Pentium II Xeon 450 512KB CPU Q665 ES  
Intel Pentium II Xeon 450 512KB CPU Q799 ES  
Intel Pentium II Xeon 450 512KB CPU Q809 ES  
Intel Pentium II Xeon 450 512KB CPU SL2XJ B1 L2 cache ECC cannot be disabled
Intel Pentium II Xeon 450 1MB CPU Q810 ES  
Intel Pentium II Xeon 450 1MB CPU SL2XK B1 L2 cache ECC cannot be disabled
Model Code Stepping Description
Intel Pentium II Xeon 450 2MB CPU Q667 ES  
Intel Pentium II Xeon 450 2MB CPU Q811 ES  
Intel Pentium II Xeon 450 2MB CPU SL2XL B1 L2 cache ECC cannot be disabled
Intel Pentium II Xeon 450 512KB CPU SL33T B1 L2 cache ECC cannot be disabled;
boxed processor with attached passive heatsink
Intel Pentium II Xeon 450 1MB CPU SL33U B1 L2 cache ECC cannot be disabled;
boxed processor with attached passive heatsink
Intel Pentium II Xeon 450 2MB CPU SL33V B1 L2 cache ECC cannot be disabled;
boxed processor with attached passive heatsink
Intel Pentium II Xeon 400 512KB CPU SL344 B0 temperature: 0-65 °C
Intel Pentium II Xeon 400 1MB CPU SL345 B0 temperature: 0-65 °C
Model Code Stepping Description
Intel Pentium II Xeon 400 512KB CPU SL34H B1 temperature: 0-65 °C
Intel Pentium II Xeon 400 1MB CPU SL34J B1 temperature: 0-65 °C
Intel Pentium II Xeon 450 512KB CPU SL354 B1 L2 cache ECC cannot be disabled
Intel Pentium II Xeon 400 512KB CPU SL35N B1 4-way SMP;
temperature: 0-65 °C;
boxed processor with attached passive heatsink
Intel Pentium II Xeon 400 1MB CPU SL35P B1 4-way SMP;
temperature: 0-65 °C;
boxed processor with attached passive heatsink
Intel Pentium II Xeon 450 512KB CPU SL36W B1 L2 cache ECC cannot be disabled;
4-way SMP;
boxed processor with attached passive heatsink