I am currently using(2x2) 4 GB ddr2 800 I have another (2x1) 2GB of ddr2 800 that I am not using. Would it work to add the spare 2 gb of RAM giving me 6 GB and go with Windows 7 64 bit, or would I need more than the 6 gb I have?
It should work your board supports up to 8GB. Put one pair in one channel and the other pair in the other channel. Make sure you find the correct slots and it should work.
My Computer
Computer Manufacturer/Model Number
Keeps changing - (Custom)
OS
Windows 7 Professional x64
CPU
Intel Core i7 860
Motherboard
Gigabyte GA-P55-UD4P
Memory
4GB DDR3 Mushkin 1600Mhz @ 7-8-7-20
Graphics Card(s)
MSI GTS250 1GB DDR3 Twin Frozr
Sound Card
Onboard realtek
Monitor(s) Displays
Samsung SyncMaster 24" P2450 + Samsung 20" 2033
Screen Resolution
1920 X 1080 and 1600 X 900 (#2 system 1440 X 900)
Hard Drives
Patriot Inferno 120GB SSD + 3 WD Blue 640GB drives
PSU
Corsair 750 HX Modular
Case
Lancool PC-K62
Cooling
Cooler Master TX3 CPU cooler and 4-140mm and 1-120mm case
Keyboard
Gigabyte USB keyboard
Mouse
Microsoft wireless laser mouse 5000
Internet Speed
7 Mb down 1.5 up
Other Info
System #2: AMD Phenom II X6 1055T (Freezer 7 Pro cooler) - Gigabyte 880GMA-UD2H - WD 500GB Black - 9500GT (1GB) 500W OCZ modular PSU - Antec 200 case. System #3 (LapTop) Core 2 Duo T6670 - 320GB 7200RPM HD - 4GB DDR3 RAM.
It should work your board supports up to 8GB. Put one pair in one channel and the other pair in the other channel. Make sure you find the correct slots and it should work.
This is true but I could also go into how it is never a good idea to mix ram, and how they should be the same speed, voltages and timings. Bottom line is try them and see if they play nice together. If you start havng issues then remove them and 4 gigs should be just fine.
Logitech Z2300 Speakers/ Bose Noise Cancelling Headphones/Avermedia PCI-e Hybrid TV Bravo/Epson NX415 all in one/ 4 Port Powered USB Hub/ LG 10x Bluray Burner /TSST Corp DVDRW External