Gateway E-4650 - Manual (Page 48)

40 Working with the Gateway Mid-Tower case
4 If you are installing two memory modules into one dual-channel (two
slots per bank) bank (RIMM BANK 0), install two identical RIMMs in
RIMM BANK 0 and two C-RIMMS in RIMM BANK 1 on the system board.
- OR -
If you are installing four memory modules into two dual-channel banks
(RIMM BANK 0 and RIMM BANK 1), install two identical RIMMs in
RIMM BANK 0 and two identical RIMMs in RIMM BANK 1 on the system
board.
Make sure that you align the notches on the RIMM and C-RIMM with
the notches on the memory module bank and press firmly into the bank.
RIMM BANK 0
RIMM BANK 1
RIMM modules
C-RIMM modules
RIMM BANK 0
RIMM BANK 1
RIMM modules
RIMM modules