Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Celeron
FV80524RX300128	300A	4.5 x 66 MHz, PPGA	The latest	A / B1
	300A - 700 MHz	66 MHz FSB, PPGA and FC/PGA		A / B1
FV80524RX333128 BX80524P333128	333	5 x 66 MHz, PPGA	The latest	A / B1
FV80524RX366128 BX80524P366128	366	5.5 x 66 MHz, PPGA	The latest	A / B1
FV80524RX400128 BX80524P400128	400	6 x 66 MHz, PPGA	The latest	A / B1
FV80524RX433128 BX80524P433128	433	6.5 x 66 MHz, PPGA	The latest	A / B1
FV80524RX466128 BX80524P466128	466	7 x 66 MHz, PPGA	The latest	A / B1
FV80524RX500128 BX80524P500128	500	7.5 x 66 MHz, PPGA	The latest	A / B1
FV80524RX533128 BX80524P533128	533	8 x 66 MHz, PPGA	The latest	A / B1
RB80526RX600128 BX80526F600128	600	9 x 66 MHz	The latest	A / B1
RB80526RX633128 BX80526F633128	633	9.5 x 66 MHz	The latest	A / B1
RB80526RX667128 BX80526F667128	667	10 x 66 MHz	The latest	A / B1
RB80526RX700128 BX80526F700128	700	10.5 x 66 MHz	The latest	A / B1
BX80526F800128 RB80526RY800128	800	100 MHz FSB, FC-PGA		A / B1
RB80526RY800128 BX80526F800128	800	8 x 100 MHz, Coppermine	The latest	A / B1
	Any	100 MHz FSB, FC-PGA2		A / B1	Not supported
Intel Pentium III
RB80526PY500256 BX80526F500256	500E	5 x 100 MHz, Coppermine	The latest	A / B1
	500E - 700E	100 MHz FSB, FC-PGA		A / B1
	533EB - 733EB	133 MHz FSB, FC-PGA		A / B1
RB80526PY550256 BX80526F550256	550E	5.5 x 100 MHz, Coppermine	The latest	A / B1
RB80526PY600256 BX80526F600256	600E	6 x 100 MHz, Coppermine	The latest	A / B1
RB80526PZ600256 BX80526C600256	600EB	4.5 x 133 MHz, Coppermine	The latest	A / B1
RB80526PY650256 BX80526F667256	650	6.5 x 100 MHz, Coppermine	The latest	A / B1
RB80526PZ667256 BX80526F667256	667	5 x 133 MHz, Coppermine	The latest	A / B1
RB80526PY700256 BX80526F700256	700	7 x 100 MHz, Coppermine	The latest	A / B1
RB80526PZ733256 BX80526F733256	733	5.5 x 133 MHz, Coppermine	The latest	A / B1
RB80526PY750256 BX80526F750256	750	7.5 x 100 MHz, Coppermine	The latest	A / B1
	Any	133 MHz FSB, FC-PGA2		A / B1	Not supported
VIA C3
	500 - 600 MHz	100 MHz FSB		A / B1
	533 - 600 MHz	133 MHz FSB		A / B1
VIA Cyrix III
C3-500MHz Cyrix III-500MHz	500 MHz	5 x 100 MHz	The latest	A / B1
C3-533MHz Cyrix III-533MHz	533 MHz	4 x 133 MHz	The latest	A / B1
C3-550MHz Cyrix III-550MHz	550 MHz	5.5 x 100 MHz	The latest	A / B1
C3-600MHz Cyrix III-600MHz	600 MHz	4.5 x 133 MHz	The latest	A / B1
C3-600MHz Cyrix III-600MHz	600 MHz	6 x 100 MHz	The latest	A / B1

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.