#1
Can I mix the two together?

My computer has 512mb SDRAM. And I pinched 512mb of DDR2 ram from work. Can I mix the two together or will it fry the motherboard?

If I can't use both, could I use DDR2 ram on the computer instead of the SDRAM?
2002 Epiphone Goth G400 SG
B.C. Rich Warlock custom
1986 Washburn RR2 Flying V
1991 Peavey Falcon II Stratocaster
#2
no, not atall. Your motherboard will only support one type of RAM, not two different types.

edit: It won't even fit in.
#4
Ahh, ok. I see now, about double and single notches in the sticks. Thanks guys.
2002 Epiphone Goth G400 SG
B.C. Rich Warlock custom
1986 Washburn RR2 Flying V
1991 Peavey Falcon II Stratocaster