[ INTEL DESKTOP CPU // MODEL RECORD ]
Intel Pentium 4 2.40C GHz (Northwood)
Northwood Pentium 4, Q2 2003; 1 core / 2 threads with Hyper-Threading; 2.40 GHz; 800 MT/s quad-pumped bus; Socket 478 (mPGA478); 512 KB L2; 8 KB L1 data cache; 66.2 W thermal design power. Verify the complete package marking and motherboard support before installation.
MODEL IDENTIFICATION: Intel Pentium 4 2.40C GHz (Northwood). 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 4 2.40C GHz (Northwood); Northwood Pentium 4, Q2 2003 |
| Cores / threads / frequency | 1 core / 2 threads with Hyper-Threading; 2.40 GHz; 800 MT/s quad-pumped bus |
| Package / socket | Socket 478 (mPGA478) |
| Cache | 512 KB L2; 8 KB L1 data cache |
| TDP | 66.2 W thermal design power |
| Memory / bus | Dual-channel DDR400 support is provided by compatible 800 MT/s-FSB chipsets (for example, Intel 865/875 platforms); memory controller is on the motherboard chipset. |
| Platform compatibility | Requires a Socket 478 motherboard explicitly supporting the 800 MT/s Northwood Pentium 4, Hyper-Threading and the processor’s electrical/thermal profile. Check the board CPU list and BIOS, and confirm the cooler is rated for this SKU. The 2.40C (800 bus) is distinct from 2.40B (533 bus). |
Compatibility and service notes
- Requires a Socket 478 motherboard explicitly supporting the 800 MT/s Northwood Pentium 4, Hyper-Threading and the processor’s electrical/thermal profile. Check the board CPU list and BIOS, and confirm the cooler is rated for this SKU. The 2.40C (800 bus) is distinct from 2.40B (533 bus).
- Dual-channel DDR400 support is provided by compatible 800 MT/s-FSB chipsets (for example, Intel 865/875 platforms); memory controller is on the motherboard chipset.
- The “C” Northwood SKU uses an 800 MT/s bus and supports Hyper-Threading; do not substitute the 2.40B or 2.40A based on clock alone.
- 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 4 2.40C GHz (Northwood)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.
- Fable Pixels — Pentium 4 Gaming PC from 2003 — 3D Benchmarks & Classic GamesIndependent 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.