Mise a jour du bios

Bonjour,

jaimerais savoir comment mettre a jour ma carte (ou le bios je c pas top) mere pour que je puisse passer dun penthium 4 1.7ghz dun penthium 4 2.40

merci....

info sur ma carte mere et tout le kit:

Property Value
Manufacturer IBM
Model IBM

North Bridge Intel i845 Revision A3
South Bridge Intel 82801BA (ICH2) Revision A3

CPU Intel(R) Pentium(R) 4 CPU 1.70GHz
Cpu Socket Socket 478 mPGA

System Slots 3 PCI, 1 AGP

Memory Summary
Maximum Capacity 512 MBytes
Memory Slots 3
Error Correction None

Warning! Accuracy of DMI data cannot be guaranteed

Property Value
BIOS Vendor IBM
Serial Number 23G4468
BIOS Version 20KT25AUS
Firmware Version 77.0
BIOS Date 11/19/2001
BIOS Size 512 KB
BIOS Starting Segment E544h
DMI Version 2.31
Characteristics - supports PCI
- supports Plug-and-Play
- supports APM
- upgradeable (Flash) BIOS
- allows BIOS shadowing
- ESCD support is available
- supports booting from CD-ROM
- supports Enhanced Disk Drive specification
- supports ACPI
- supports legacy USB
- supports AGP
- supports booting from LS-120
- supports booting from ATAPI ZIP drive
- Smart Battery supported
- BIOS Boot Specification supported