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| General information |
| Type | CPU / Microprocessor |
| Family | Intel Pentium 4 |
| Part number | RK80531PC0290K |
| Processor markings | 80531PC1.7G0K |
| Frequency (GHz) | 1.7 |
| Bus speed (MHz) | 400 |
| Clock multiplier | 17 |
| Package type | 478-pin FC-PGA2 |
| Socket type | Socket 478 (mPGA478B) |
| Architecture / Microarchitecture / Other |
| CPUID | 0F0Ah |
| Core stepping | C1 |
| Processor core | Willamette |
| Manufacturing technology (micron) | 0.18 |
| L2 cache size (KB) | 256 |
| Notes on sSpec QCH9 |
- Engineering sample.
- The processor is marked as QCH9ES
|