Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Pentium 4 Willamette
80528PC013G0K BX80528JK130G	1.3 GHz	400 MHz FSB	W6385IMS.140	100
80528PC017G0K BX80528JK140G	1.4 GHz	400 MHz FSB	W6385IMS.140	100
80528PC021G0K BX80528JK150G	1.5 GHz	400 MHz FSB	W6385IMS.140	100
RN80528PC025G0K BX80528JK160G	1.6 GHz	400 MHz FSB	W6385IMS.140	100
RN80528PC029G0K BX80528JK170G	1.7 GHz	400 MHz FSB	W6385IMS.140	100
RN80528PC033G0K BX80528JK180G	1.8 GHz	400 MHz FSB	W6385IMS.140	100
RN80528PC037G0K BX80528JK190G	1.9 GHz	400 MHz FSB	W6385IMS.140	100
RN80528PC041G0K BX80528JK200G	2.0 GHz	400 MHz FSB	W6385IMS.140	100

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.