Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Celeron
RK80531RC041128 BX80531P200G128 RK80532RC041128 BX80532RC2000B	2.00 GHz	100 MHz FSB	AB60RS11
RK80532RC045128 BX80532RC2100B	2.10 GHz	100 MHz FSB	AB60RS11
RK80532RC049128 BX80532RC2200B	2.20 GHz	100 MHz FSB	AB60RS11
RK80532RC052128 BX80532RC2300B	2.30 GHz	100 MHz FSB	AB60RS11
RK80532RC056128 BX80532RC2400B	2.40 GHz	100 MHz FSB	AB60RS11
RK80532RC060128 BX80532RC2500B	2.50 GHz	100 MHz FSB	AB60RS11
RK80532RC064128 BX80532RC2600B	2.60 GHz	100 MHz FSB	AB60RS11
Intel Pentium 4
RK80531PC033G0K BX80531NK180G RK80532PC033512 BX80532PC1800D	1.80 GHz	100 MHz FSB	AB60RS11
RK80531PC041G0K BX80531NK200G RK80532PC041512 BX80532PC2000D	2.00 GHz	100 MHz FSB	AB60RS11
RK80532PC049512 BX80532PC2200D	2.20 GHz	100 MHz FSB	AB60RS11
RK80532PE051512 BX80532PE2266D	2.26 GHz	133 MHz FSB	AB60RS11
RK80532PC056512 BX80532PC2400D	2.40 GHz	100 MHz FSB	AB60RS11
RK80532PE056512 BX80532PE2400D	2.40 GHz	133 MHz FSB	AB60RS11
RK80532PG056512 BX80532PG2400D	2.40 GHz	200 MHz FSB	AB60RS11
RK80532PC060512 BX80532PC2500D	2.50 GHz	100 MHz FSB	AB60RS11
RK80532PE061512 BX80532PE2533D	2.53 GHz	133 MHz FSB	AB60RS11
RK80532PG064512 BX80532PG2600D	2.60 GHz	200 MHz FSB	AB60RS11
RK80532PE067512 BX80532PE2667D	2.66 GHz	133 MHz FSB	AB60RS11
RK80532PE072512 BX80532PE2800D RK80546PE0721M BX80546PE2800E	2.80 GHz	133 MHz FSB	AB60RS11
RK80532PG072512 BX80532PG2800D RK80546PG0721M BX80546PG2800E	2.80 GHz	200 MHz FSB	AB60RS11
RK80532PG080512 BX80532PG3000D RK80546PG0801M BX80546PG3000E	3.00 GHz	200 MHz FSB	AB60RS11
RK80532PE083512 BX80532PE3066D	3.06 GHz	133 MHz FSB	AB60RS11
RK80532PG088512 BX80532PG3200D RK80546PG0881M BX80546PG3200E	3.20 GHz	200 MHz FSB	AB60RS11
RK80532PG096512 BX80532PG3400D RK80546PG0961M BX80546PG3400E	3.40 GHz	200 MHz FSB	AB60RS11
Intel Pentium 4 Extreme Edition
	3.00 GHz	200 MHz FSB	AB60RS11

When part numbers are not supplied by motherboard manufacturers, we use best guess approach to determine part numbers based on CPU model, frequency and features. In some cases our guess may be incorrect or incomplete. Please always verify part numbers before committing to buying the CPU.