Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Celeron
RB80526RY850128 BX80526F850128	850	8.5 x 100 MHz, Coppermine	The latest	A / B / C
RB80526RY900128 BX80526F900128	900	9 x 100 MHz, Coppermine	The latest	A / B / C
RB80526RY950128 BX80526F950128	950	9.5 x 100 MHz, Coppermine	The latest	A / B / C
RB80526RY001128 BX80526F1000128	1 GHz	10 x 100 MHz, Coppermine	The latest	A / B / C
RK80530RY001256 BX80530F1000256	1A GHz	10 x 100 MHz, Tualatin	The latest	A / B / C
RB80526RY005128 BX80526F1100128	1.1 GHz	11 x 100 MHz, Coppermine	The latest	A / B / C
RK80530RY005256 BX80530F1100256	1.1A GHz	11 x 100 MHz, Tualatin	The latest	A / B / C
RK80530RY009256 BX80530F1200256	1.2 GHz	12 x 100 MHz, Tualatin	The latest	A / B / C
RK80530RY013256 BX80530F1300256	1.3 GHz	13 x 100 MHz, Tualatin	The latest	A / B / C
Intel Pentium III
RB80526PY001256 BX80526F1000256	1 GHz	10 x 100 MHz, Coppermine	The latest	A / B / C
RB80526PY005256 BX80526F1100256	1.1 GHz	11 x 100 MHz, Coppermine	The latest	A / B / C
	1.13A GHz	8.5 x 133 MHz, 0.13um, Cache : 512KB, Tualatin	The latest	A / B / C
RK80530PZ006256 BX80530C1133256 RK80530KZ006512 RK80530KZ00651E BX80530C1133512	1.13A GHz	8.5 x 133 MHz, Tualatin	The latest	A / B / C
RK80530PZ009256 BX80530C1200256	1.2 GHz	9 x 133 MHz, Tualatin	The latest	A / B / C
	1.26 GHz	9.5 x 133 MHz, Coppermine	05/24/2002	B / C
VIA Cyrix III
C3-750AMHz Cyrix III-750AMHz	750 MHz	7.5 x 100 MHz	12/21/2004	C
	1 GHz	10 x 100 MHz	12/21/2004	C

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.