DFI P4X400-A motherboard specifications

CPU socket type:

Socket 478

DFI P4X400-A CPU compatibility list

Part Number	Frequency	Features	BIOS	PCB	Notes
Intel Celeron
RK80531RC033128 BX80531P180G128	1.8 GHz	18 x 400 MHz, Willamette	04/11/2003	A
RK80531RC037128 BX80531P190G128	1.9 GHz	19 x 400 MHz, Willamette	04/11/2003	A
RK80532RC041128 BX80532RC2000B	2.0 GHz	20 x 400 MHz, Northwood	04/11/2003	A
RK80532RC045128 BX80532RC2100B	2.1 GHz	21 x 400 MHz, Northwood	04/11/2003	A
RK80532RC049128 BX80532RC2200B	2.2 GHz	22 x 400 MHz, 1.525V, Northwood	04/11/2003	A
RK80532RC056128 BX80532RC2400B	2.4 GHz	24 x 400 MHz, Northwood	04/11/2003	A
RK80532RC064128 BX80532RC2600B	2.6 GHz	26 x 400 MHz, Northwood	03/25/2003 or Later	A
Intel Pentium 4
RK80531PC033G0K BX80531NK180G	1.8 GHz	18 x 400 MHz, Willamette	04/11/2003	A
RK80531PC037G0K BX80531NK190G	1.9 GHz	19 x 400 MHz, Willamette	04/11/2003	A
RK80532PC041512 BX80532PC2000D	2.0 GHz	20 x 400 MHz, Northwood	04/11/2003	A
RK80532PC049512 BX80532PC2200D	2.2 GHz	22 x 400 MHz, Northwood	04/11/2003	A
RK80532PE051512 BX80532PE2266D	2.26 GHz	19 x 533 MHz, Northwood	04/11/2003	A
RK80532PE056512 BX80532PE2400D	2.4 GHz	18 x 533 MHz, Northwood	04/11/2003	A
RK80532PC056512 BX80532PC2400D	2.4 GHz	24 x 400 MHz, Northwood	04/11/2003	A
RK80532PE061512 BX80532PE2533D	2.53 GHz	19 x 533 MHz, Northwood	04/11/2003	A
RK80532PE067512 BX80532PE2667D	2.66 GHz	20 x 533 MHz, HT technology	04/11/2003	A
RK80532PE072512 BX80532PE2800D RK80546PE0721M BX80546PE2800E	2.8 GHz	21 x 533 MHz, HT technology	04/11/2003	A
RK80532PE072512 BX80532PE2800D	2.8 GHz	21 x 533 MHz, Northwood	04/11/2003	A
RK80532PE083512 BX80532PE3066D	3.06 GHz	23 x 533 MHz, 1.5V, 1.5V, HT technology	04/11/2003	A

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.