compatibilité Carte mère mémoire vive et carte graphique

Bonjour, j'ai une carte mere MSI MS-6741 1.0 et je voulais savoir quel type de Ram est compatible avec celle ci et si je pouvais mettre une Geforce 7800GTX dessus  

Voici la config complete de mon pc:

Carte mère SMBios version 2.3
MSI MS-6741 1.0
Bios: American Megatrends Inc. Version 07.00T 04/02/01 taille: 256Kb


Processeur AMD Athlon(tm) 64 Processor 3200+ (2000Mhz) (L1: 128ko L2: 1024ko )


Chipset Northbridge: VIA K8T800
Southbridge: VIA VT8237/R


Mémoire mémoire windows (cette valeur ne correspond pas exactement à la mémoire totale physique): 255Mo


Péripheriques IDE ST3200822A 3.01 (ATA, 176.04 Go, tampon: 8 Mo)


Lecteurs CD/DVD PHILIPS PBDV824DP
XZ5456S LBW350H SCSI CdRom Device
XZ5456S LBW350H SCSI CdRom Device
XZ5456S LBW350H SCSI CdRom Device
XZ5456S LBW350H SCSI CdRom Device


Disque dur ST3200822A (176.04Go)
IC USB Storage-CFC USB Device
IC USB Storage-MMC USB Device
IC USB Storage-MSC USB Device
IC USB Storage-SMC USB Device


Cartes PCI/AGP Stockage
VIA Technologies, Inc.:VIA VT6420 SATA RAID Controller
VIA Technologies, Inc.:VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE

Réseau
RaLink:Wireless PCI Adapter RT2400 / RT2460: PC11B2 (MS-6828) Wireless 11b PCI Card
VIA Technologies, Inc.:VT6102 [Rhine-II]

Affichage
nVidia Corporation:NV36 [GeForce FX 5700LE]

Multimedia
VIA Technologies, Inc.:VT8233/A/8235/8237 AC97 Audio Controller

Ponts
VIA Technologies, Inc.:VT8385 [K8T800 AGP] Host Bridge
VIA Technologies, Inc.:VT8237 PCI bridge [K8T800/K8T890 South]
VIA Technologies, Inc.:VT8237 ISA bridge [KT600/K8T800/K8T890 South]: DFI KT600-AL / Soltek SL-B9D-FGR Motherboard
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] HyperTransport Technology Configuration
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] Address Map
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] DRAM Controller
Advanced Micro Devices [AMD]:K8 [Athlon64/Opteron] Miscellaneous Control

Communications
Agere Systems:V.92 56K WinModem

Bus Series
VIA Technologies, Inc.:IEEE 1394 Host Controller
VIA Technologies, Inc.:VT82xxxxx UHCI USB 1.1 Controller
VIA Technologies, Inc.:VT82xxxxx UHCI USB 1.1 Controller
VIA Technologies, Inc.:VT82xxxxx UHCI USB 1.1 Controller
VIA Technologies, Inc.:VT82xxxxx UHCI USB 1.1 Controller
VIA Technologies, Inc.:USB 2.0