Hitachi Compute Rack 220H Replacement Manual page 68

Installing a DIMM
1. Ensure that the lock tabs of the memory slot are in the open position.
NOTICE
2. Orient the replacement DIMM to the direction where the DIMM keys align
correctly with the memory slot.
3. Push the replacement DIMM into the memory slot until the lock tabs lock the
DIMM in place.
If the lock tabs are not closed properly, the DIMM is not locked in the memory
slot. Push down the DIMM again.
NOTICE
Figure 4-17: Install a DIMM
4-16
Make sure you do not bend the electrolytic capacitor when opening
the lock tabs of a memory slot. Otherwise, the motherboard may be
damaged.
Install the replacing DIMM in the same memory slot where the
failed DIMM has been removed. Otherwise, the system might
not operate normally.
Insert the DIMM vertically to the slot. Otherwise, it may cause
damages to pins of the connector such as bent pins.
The shape of DIMM differs depending on the Product code.
Replacing parts
Hitachi Compute Rack 220H CRU Replacement Guide