Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with
one of these parts, contact a service technician.
To replace the power supply assembly, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 71.
3. Disconnect the power supply assembly cables from all drives and from the 24-pin power connector and
4-pin power connector on the system board. See “Locating parts on the system board” on page 69.
Note:
You might also need to release the power supply assembly cables from some cable clips or ties
that secure the cables to the chassis.
4. Lay the computer on its side and remove the four screws that secure the power supply assembly.
Figure 17. Removing the screws that secure the power supply assembly
5. Slide the power supply assembly a little bit forward and then remove it from the chassis.
80
ThinkCentre Hardware Maintenance Manual
Summary of Contents for 7099U1U
Page 1: ...ThinkCentre Hardware Maintenance Manual Machine Types 0864 0889 5023 7099 7844 and 7846 ...
Page 2: ......
Page 3: ...ThinkCentre Hardware Maintenance Manual Machine Types 0864 0889 5023 7099 7844 and 7846 ...
Page 15: ...Chapter 2 Safety information 9 ...
Page 19: ...Chapter 2 Safety information 13 ...
Page 20: ...1 2 14 ThinkCentre Hardware Maintenance Manual ...
Page 21: ...Chapter 2 Safety information 15 ...
Page 27: ...Chapter 2 Safety information 21 ...
Page 31: ...Chapter 2 Safety information 25 ...
Page 72: ...66 ThinkCentre Hardware Maintenance Manual ...
Page 102: ...96 ThinkCentre Hardware Maintenance Manual ...
Page 218: ...212 ThinkCentre Hardware Maintenance Manual ...
Page 223: ......
Page 224: ...Part Number 89Y9149 Printed in USA 1P P N 89Y9149 89Y9149 ...