重新登上 舊NB,Acer Ferrari 4000最近跑很慢想升級要怎麼做才好

最近跑很慢想升級要怎麼做才好

我買來很久了.最近跑很慢想升級
基本規格:
Processor: AMD Turion 64 processor
Chipset: ATI RADEON XPRESS 200P
Memory: 1 GB of DDR333 memory
Display: 15.4" WSXGA+ TFT LCD, 1680 x 1050 resolution
Graphics: ATI Mobility Radeon X700 with 128 MB of external DDR VRAM
Storage: 100 GB ATA/100 hard disk drive
5-in-1 card reader supporting Memory Stick? Memory Stick Pro, MultiMediaCard (MMC), Secure Digital (SD) and xD-Picture Card
Optical drive: Slot-load DVD-Super Multi double-layer drive
Communication: Gigabit Ethernet, integrated 802.11b/g Wi-Fi, Bluetooth

各位給點建議
我自己換SSD和RAM
請問要注意哪些.要怎麼拆卸
因為我人不在台灣.在國外買回住處自已動手換