I am trying to add RAM to my computer, but I am having trouble identifying it and ensuring that the motherboard RAM slots will support the new ones:
Computer model: Dell OptiPlex GX280 (There is no "n" or "SF" or "SMT" that I can see)
Current RAM model: Samsung M3 78T6553BZ0-KCC
On the RAM it is written: 512MB 1Rx8 PC2-3200U-333-10-A1
Currently installed: 2 sticks of 512MB
Slots on motherboard: 4 available
Did a search in Corsair web site RAM selector and came up with this option: VS1GB533D2 is an unbuffered, non-ECC, 1GB DDR2 memory module operating at PC2-4200
Did a search on Crucial site RAM selector and came up with this option: CT65713 1GB, 240-pin DIMM, DDR2 PC2-5300 memory module
What I need help with:
Can I put a 1GB stick in the slots on this PC?
Can I put a 2GB stick in the slots on this PC?
What is the maximum amount of RAM this PC supports?
If my original RAM is PC2-3200, why do the RAM selectors say I should use PC2-4200 or PC2-5300?
What is the best RAM I should use (not the brand, but the type)?
Can anyone help me?