[ INTEL DESKTOP CPU // MODEL RECORD ]
Intel Pentium II 400 MHz (Deschutes)
Deschutes Pentium II, Q2 1998; 1 core / 1 thread; 400 MHz; 100 MHz system bus; Slot 1 (SECC / SECC2 cartridge, model-dependent); 32 KB L1; 512 KB L2 on cartridge, clocked at half the core frequency; 24.3 W thermal design power. Verify the complete package marking and motherboard support before installation.
MODEL IDENTIFICATION: Intel Pentium II 400 MHz (Deschutes). This record refers to this desktop SKU, not an entire processor generation; verify the physical marking, S-spec/ordering code and motherboard support list.
Verified model specifications
| Catalog path | Intel → Pentium generations |
|---|---|
| Model / launch era | Intel Pentium II 400 MHz (Deschutes); Deschutes Pentium II, Q2 1998 |
| Cores / threads / frequency | 1 core / 1 thread; 400 MHz; 100 MHz system bus |
| Package / socket | Slot 1 (SECC / SECC2 cartridge, model-dependent) |
| Cache | 32 KB L1; 512 KB L2 on cartridge, clocked at half the core frequency |
| TDP | 24.3 W thermal design power |
| Memory / bus | PC100 SDRAM through the host chipset on a 100 MHz system bus; memory capacity and ECC support vary by board. |
| Platform compatibility | Use a Slot 1 motherboard that lists the 400 MHz Deschutes CPU, supports its 100 MHz bus and correct core voltage, and has a matching BIOS. Confirm whether the particular cartridge is SECC or SECC2 and that the retention/cooler arrangement fits. |
Compatibility and service notes
- Use a Slot 1 motherboard that lists the 400 MHz Deschutes CPU, supports its 100 MHz bus and correct core voltage, and has a matching BIOS. Confirm whether the particular cartridge is SECC or SECC2 and that the retention/cooler arrangement fits.
- PC100 SDRAM through the host chipset on a 100 MHz system bus; memory capacity and ECC support vary by board.
- Deschutes 400 MHz cartridge; not the older 100 MHz-bus PII-350 (which uses a 100 MHz bus but has a different core multiplier) or Klamath parts.
- Before fitting, confirm the exact motherboard manufacturer CPU list, revision, minimum BIOS, power delivery, cooling, package and memory type. Socket fit alone does not establish electrical or firmware compatibility; never force a processor.
Service & archival record
Record the complete processor marking and S-spec/ordering code, stepping, board model/revision, chipset, BIOS/microcode, memory configuration, cooler, power profile, physical condition and provenance. Separate measured behavior from published specifications.
Handle the package by its edges and protect contacts. Inspect for contamination, damaged pins/pads, socket damage and uneven cooler pressure before use.
Sources & further reading
- Intel ARK — exact-model lookup: Intel Pentium II 400 MHz (Deschutes)Intel’s official product-specification search. Legacy products may have limited or archived ARK data; cross-check the physical S-spec and Intel-era documentation.
- Intel Support — desktop processor installation and handlingManufacturer guidance for processor installation; motherboard firmware and platform support must also be confirmed with the board vendor.
- Bitsavers — archived Intel component documentationHistorical Intel processor datasheets and technical manuals for archived Pentium generations; use the appropriate generation document and verify revision-specific errata.
- Various Creators — System Shock 2 — Frame-rate on 1998 retro PC (Pentium II 400 / Voodoo 2)Independent video review; treat as supplementary context, not primary manufacturer documentation.
Published specifications are not a guarantee of system compatibility. Confirm the exact processor marking and board-vendor documentation.