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HP 235446-001 - Intel Pentium III processor - 1.0GHz (Coppermine, 133MHz front side bus, 256KB Level-2 cache) Retail
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HP 176610-001 - Intel Pentium III processor - 667MHz (Coppermine, 133MHz front side bus, 256KB Level-2 cache, FC-PGA) - Includes active heat sink with cooling fan Retail
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HP 166145-001 - Intel Pentium III processor - 667MHz (Coppermine, 133MHz front side bus, 256KB Level-2 cache, SECC-2) - Includes heat sink Retail
HP 164272-001 - Intel Pentium III processor - 533MHz (Coppermine, 133MHz front side bus, 256KB Level-2 cache, SECC-2) - Includes heat sink Retail