IBM A40P TYPE 6841, A40I TYPE 2271, A40 TYPE 6840 manual Power supply removal

Models: A40 TYPE 6840 A40P TYPE 6841 A40I TYPE 2271

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Power supply removal

Pin

Signal

Function

 

 

 

1

3.3 V

+3.3 V dc

 

 

 

2

3.3 V

+3.3 V dc

 

 

 

3

COM

Ground

 

 

 

4

5 V

+5 V dc

 

 

 

5

COM

Ground

 

 

 

6

5 V

+5 V dc

 

 

 

7

COM

Ground

 

 

 

8

POK

Power Good

 

 

 

9

5VSB

Standby Voltage

 

 

 

10

12 V

+12 V dc

 

 

 

11

3.3 V

+3.3 V dc

 

 

 

12

-12 V

-12 V dc

 

 

 

13

COM

Ground

 

 

 

14

PS-ON

DC Remote Enable

 

 

 

15

COM

Ground

 

 

 

16

COM

Ground

 

 

 

17

COM

Ground

 

 

 

18

No voltage

Not used

 

 

 

19

5 V

+5 V dc

 

 

 

20

5 V

+5 V dc

 

 

 

If the voltages are not correct, and the power cord is good, replace the power supply.

Power supply removal

1.Remove the power cable.

2.Remove the cover (see “Removing the cover” on page 15).

3.Remove the four screws that secure the power supply to the back of the chassis.

34Hardware Maintenance Manual A40 Type 6840 A40P Type 6841 A40i Type 2271: IBM NetVista Computer

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IBM A40P TYPE 6841, A40I TYPE 2271, A40 TYPE 6840 manual Power supply removal