IBM 4190 - Manual (Page 28)

2.5-inch models
Riser-card
Assembly
SAS/SATA controller
(some models)
System board
Power supply
Fans
Bezel
CD/DVD
drive
Fans
Air baffle
Microprocessor
DIMM
Operator information
panel assembly
CD/DVD interface card
2.5-inch hard
disk drive
2.5-inch hard
disk drive
backplane
2.5-inch filler panel
2.5-inch
drive cage
Heat-exchanger
assembly
Heat-exchanger
retention module
14 IBM System x3250 M2 Types 4190 and 4194: User’s Guide