Справочник Пользователя для Acer MU.R230E.001

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Install FBD pair upgrades in the following sequence: 
–  First FBD pair:  DIMMA1 and DIMMB1 slots  
–  Upgrade 1:  DIMMC1 and DIMMD1 slots
–  Upgrade 2:  DIMMA2 and DIMMB2 slots
–  Upgrade 3:  DIMMC2 and DIMMD2 slots
To remove an FBD:
Important:  Before removing an FBD, make sure to back up all 
important system files.  Also, note that FBDs should be removed 
in pairs.
1
Perform the pre-installation instructions described on page 37.
2
Lay the server on its side (components showing). 
3
Remove the air duct to access to the FBD slots. 
(1) Remove the three screws that secure the air duct.
(2) Detach the air duct from the heat sink-fan.