Transcend 2g ddr2 667 DIMM is compatible with my device

[aadityajr7]

It's HP EliteDesk 800 G1 Base model small form factor PC , it already has 4 gb ram i want to add on 2gb , I have transcend 2g ddr2 667 dimm RAM can I used for this PC

[Paul_Tikkanen]

DDR2 memory will not fit in your PC's DDR3 memory slot.

It runs at a higher voltage, has a different number of contact pins, and the slot in the memory board is cut in a different place than it is in a DDR3 memory chip.