Quelle type de memoires ?

Bonjour,je suis sous vista, mais il me semble que mon pc rame bien assez voila ma config et j'aimerais que vous puissiez me dire quelles types de memoires il me faudrait pour que cela rame un peu moins .Merci merci et merci encore !!!
Version du plugin 3.0.4 build 0

Version de la base 7

Nom de la machine PC-de-Bernard

Date de la détection 18/11/2008 14:22

Système d'exploitation Windows Vista Edition Familiale Premium (build 6001) Service Pack 1
Navigateur web par défaut: Internet Explorer
Client e-mail par défaut: Windows Mail
Antivirus: Kaspersky Internet Security 8.0.0.454
Pare-feu:Kaspersky Internet Security 8.0.0.454
Antispyware:Windows Defender 1.1.1505.0
Antispyware:Kaspersky Internet Security 8.0.0.454

WinSAT Note Vista: 2.4 (Processeur: 4.9, Mémoire vive: 3.9, Graphiques: 2.5,
Graphiques de jeu: 2.4, Disque dur principal: 5.3 )

Carte mère SMBios version 2.3
Acer EM61SM/EM61PM
Bios: Phoenix Technologies, LTD R01-A4 12/19/2006 taille: 512Kb

Processeur AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ (2209Mhz) (L1: 128ko L2: 512ko
)

Chipset Northbridge: AMD-8131
Southbridge: NVIDIA MCP61

Mémoire Barrette de 512 Mo None
Barrette de 512 Mo None
mémoire windows (cette valeur ne correspond pas exactement à la
mémoire totale physique): 766Mo

Carte Graphique nVidia Corporation GeForce 6100 nForce 405 (256 Mo)

Lecteurs CD/DVD HL-DT-STDVD+-RW GSA-H21N1.00 (DVD-RAM Recorder)

Disque dur Hitachi HDT725025VLA SCSI Disk Device (232.88Go)
CBM Flash Disk USB Device (1.96Go)
Generic USB CF Reader USB Device
Generic USB MS Reader USB Device
Generic USB SD Reader USB Device
Generic USB SM Reader USB Device
HP Photosmart C4180 USB Device

Cartes PCI/AGP Stockage
nVidia Corporation:MCP61 IDE
nVidia Corporation:MCP61 SATA Controller

Réseau
Marvell Technology Group Ltd.:88E8056 PCI-E Gigabit Ethernet Controller

Affichage
nVidia Corporation:GeForce 6100 nForce 405

Multimedia
nVidia Corporation:MCP61 High Definition Audio

Mémoires
nVidia Corporation:MCP61 Memory Controller
nVidia Corporation:MCP61 Memory Controller

Ponts
nVidia Corporation:MCP61 LPC Bridge
nVidia Corporation:MCP61 PCI bridge: MCP61 PCI bridge
nVidia Corporation:MCP61 PCI Express bridge: MCP61 PCI Express bridge
nVidia Corporation:MCP61 PCI Express bridge: MCP61 PCI Express bridge
nVidia Corporation:MCP61 PCI Express bridge: MCP61 PCI Express bridge
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] HyperTransport Technology
Configuration: K8 [Athlon64/Opteron] HyperTransport Technology Configuration
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] Address Map: K8
[Athlon64/Opteron] Address Map
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] DRAM Controller: K8
[Athlon64/Opteron] DRAM Controller
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] Miscellaneous Control: K8
[Athlon64/Opteron] Miscellaneous Control

Bus Series
nVidia Corporation:MCP61 SMBus
nVidia Corporation:MCP61 USB Controller
nVidia Corporation:MCP61 USB Controller
Texas Instruments:TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)

Périphérique USB Chipsbank Microelectronics Co., Ltd CBM2080 Flash drive controller (Flash Disk)
KYE Systems Corp. (Mouse Systems) USB20 Camera
Hewlett-Packard Photosmart C4100 series (Photosmart C4100 series)
Alcor Micro Corp. 8-in-1 Media Card Reader (USB Reader)
Sunplus Technology Co., Ltd USB Optical Wheel Mouse

Clavier Clavier standard PS/2

Souris Souris HID

Ecran(s) Moniteur Plug-and-Play générique( AL1916W)