Besoin d'un pro !

Bonjour,voici ma config :

CPU-Z 1.50 report file

Processor(s)

Number of processors 1
Number of cores 2 per processor
Number of threads 2 per processor
Name Intel Mobile Core 2 Duo T9400
Code Name Penryn
Specification Intel(R) Core(TM)2 Duo CPU T9400 @ 2.53GHz
Package Socket P (478)
Family/Model/Stepping 6.7.6
Extended Family/Model 6.17
Core Stepping C0
Technology 45 nm
Core Speed 2527.1 MHz
Multiplier x Bus speed 9.5 x 266.0 MHz
Rated Bus speed 1064.1 MHz
Stock frequency 2533 MHz
Instruction sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, EM64T
L1 Data cache (per processor) 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache (per processor) 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache (per processor) 6144 KBytes, 24-way set associative, 64-byte line size

Chipset & Memory

Northbridge Intel PM45 rev. 07
Southbridge Intel 82801IM (ICH9-M) rev. 03
Graphic Interface PCI-Express
PCI-E Link Width x16
PCI-E Max Link Width x16
Memory Type DDR2
Memory Size 4096 MBytes
Memory Frequency 399.0 MHz (2:3)
CAS# Latency (tCL) 6.0 clocks
RAS# to CAS# (tRCD) 6 clocks
RAS# Precharge (tRP) 6 clocks
Cycle Time (tRAS) 18 clocks

System

System Manufacturer Dell Inc.
System Name Studio 1737
System S/N 6Z5P74J
Mainboard Vendor Dell Inc.
Mainboard Model 0P786H
BIOS Vendor Dell Inc.
BIOS Version A04
BIOS Date 11/26/2008

Memory SPD

Module 1 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Hyundai Electronics
Module 2 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Hyundai Electronics

Software

Windows Version Microsoft Windows Vista (6.0) Home Premium Edition Service Pack 1 (Build 6001)
DirectX Version 10.0

je voudrai remplacer les barettes memoire actuelle par de la ddr 2 en 1066 mhz est ce possible,......merci d'avance!