Sony PCV-RXP-RZP - Manual (Page 66)

VAIO Digital Studio System Reference Manual 52
Memory Module (DDR-DIMM) Slots
Align pin 1 of the Dual Inline Memory Module (DDR-DIMM) to the small
triangle located on the memory module slot of the system board.
DDR-DIMM1 DDR-DIMM2
Indicates pin 1
Memory module (DDR-DIMM)
1 1 1 1