Acer Altos R920 Series - Manual (Page 76)

3 System upgrade 58
To install a power supply:
1 If necessary, remove the old power supply. See previous section.
2 With the handle in the open position, push the power supply in
the bay fully (A).
3 Rotate the handle to the closed position (B).
4 Tighten the thumbscrew to secure the power supply (C).
5 Plug the power cord into the AC receptacle on the power supply.
6 Verify that the LEDs on the power supply are functioning. Refer to
the “Hot-plug power supply module LED indicators” section on
page 24 for more information.
A
B