T e c h n i c a l I n f o r m a t i o n

PL24, PL28

PL28

Pin1

PL24

Pin1

This range of pins is not for jumpers, but is used to connect various features around the system case to the motherboard.

PL24

Pins:

1 to 4

HDD active light

 

 

5 to 9

Keylock (not fitted)

 

 

10 & 11

System in ‘power standby’ light

 

 

12 & 13

System hardware reset (not fitted)

PL28

Pins:

1 & 2

System standby restore switch

 

 

3 to 7

Infrared controller

 

 

8,9,10

Fan, slow mode

 

 

11,12,13 Fan, full speed mode

 

 

14 to 17

Internal speaker

Replacing the CMOS battery

The battery has an average life of 3-5 years. If you have to reconfigure the computer every time you turn it on, the battery has discharged and needs to be replaced.

B/8