Don't ask how to over-clock.
#29927 by jhering
Mon Feb 28, 2005 5:43 pm
I have an HP Pavilion 780n and want to upgrade my CPU from Pentium 4 1.8 GHz with a 400MHz fsb to 2.4 GHz or 2.8 GHz. I tried the 2.8 and the PC powers up, but nothing comes up on the monitor. I did some looking around and found the group. They pointed me to this forum.

The current 1.8 GHz processor specs are:

ROM BIOS by Award Software International Inc.,
BIOS ID Strings: 11/22/2001-<I845>-P4B266LA, P4B266LA
Model: Award Modular BIOS v6.0, 11/22/01
Vendor: ASUSTek Computer INC.
Version String: 3.02

Manufacturer: ASUSTeK Computer INC.
Product: P4B266LA
Version: REV 1.xx
Serial Number: MB-1234567890

Manufacturer: HP Pavilion 04
Product Name: P6399A-ABA 0780N
Version: 44000RE101DANUB
Serial Number: US15151177 NA240

Vendor Name: Award Software, Inc.
BIOS Version: 3.02
BIOS Starting Address Segment: F000h
BIOS Release Date: 11/22/2001
BIOS ROM Size: 512 KB

BIOS update interface: Asustek phlash hook

Supported features:
ASUS ACPI 0.9/1.x
System Management BIOS w/DMI v2.3
PCI IRQ Routing Table v1.0 (correct)
EL TORITO CD-ROM Boot Specification

The current BIOs info is:

Computer ID : FC, SubTyp: 02, BIOS-Level: 116
Rechnertyp : AT,typ ??, Konfigurationsbyte $70
Maustreiber : Microsoft kompatibel, Version: 08.00
Maustyp : InPort-Maus auf IRQ2
Bus : ISA
Hauptspeicher : 640 KB, davon verfügbar : 640 KB
Extended Memory : 1024 KB
BIOS Datum : 11/22/01
Award BIOS gefunden : Award Modular BIOS v6.0
Award ID-String : 11/22/2001-<I845>-P4B266LA
Board/BIOS-Version : 3.02
OEM : AsusTek
URL : +
Chipset : <I845>
INT-13h BIOS Extension: nein
PnP (ACFG,ESCD,DMI) : PnP V1.0/ESCD, DMI V 2.3, SM V2.3

The CPU I was lookling to upgrade is at PowerLeap; I used their online INSPECs app and get the following info for the current motherboard:

Manufacturer : ASUSTeK Computer INC.
Model : P4B266LA Rev. REV 1.xx
CPU Slot/Socket Type : mPGA-478
Chipset Vendor : Intel i845D Rev. 4
Bios Manufacturer : Award Software, Inc.
Bios Version : 3.02

The current processor shows:

Number Of Processors : 1
Type : Intel Pentium 4 1800 MHz
Package : mPGA-478
Manufacturer Codename : Willamette
Clock Speed : 1793 MHz
Clock Multiplier : 18.0
Front Side Bus (FSB) Speed : 400 MHz
L2 Cache Size : 256 KBytes Stepping : D0
Trace Width : 0.18
Microcode : 2Eh
Instruction Sets : MMX, SSE, SSE2

The recommended upgrades are:

Intel Pentium 4 2.8GHz 400MHz 478pin 512K CPU OEM
400 Front Side Bus

Intel Pentium 4 2.5GHz 400MHz 478pin 512K CPU OEM
400 Front Side Bus

:oops: Can anyone let me know why the 2.8 does not work? I assume it has to do with the BIOs. Is there a BIOs out there that I can upgrade to? Can someone let me know if it is possible to modify the current BIOs to support the 2.8 GHz CPU? Thanks!