HP QMS 1660E - Manual (Page 161)

Single In-Line
Memory
Modules
6-27 Printer Options
4 Insert the SIMM into the SIMM connector.
Hold the SIMM at a 45° angle to the controller board, with the
notch on the right side. Slide the SIMM into either SIMM connec-
tor, and then push gently on it to make sure it is securely seated
in the connector.
» Note: You can insert a SIMM in either SIMM connector as long as
DRAMØ, the SIMM connector closest to you, is occupied.
“DRAMØ” is marked on the controller board for ease of
identification.
45°
Notch