CPU Card

Note: Refer to ªHandling Static-Sensitive Devicesº on page 3-2 before removing or installing the CPU card in this system. For Model 39H, refer to the ªCPU Card for Model 39Hº removal procedure on page 3-31.

Removal

1.Set the power switches of the attached devices to Off.

2.Set the power switch of the system unit to Off.

3.If the system unit has a rear cover, do the rear cover removal procedure on page 3-3.

4.Do the Top Cover removal procedure on page 3-4.

5.On Models 340 and 350, remove the CPU shield.

6.Make a note of its position and remove the CPU card.

Note: For specific system planar connector locations refer to pages1-5 and 1-6.

 

J15

J16 J27 J25

J20

J23

J14

J2

1

 

J13

J24

 

 

 

CPU Card

 

 

 

 

2

 

J12

 

Connector

3

 

J11

 

J22

4

 

J10

 

 

 

 

J8

 

 

A

 

J9

J19

 

J6

 

J18

B

 

J7

 

 

J5

J17

 

 

 

C

J21

J1

 

 

Figure 2.

System Planar Connector locations illustration.

 

Replacement

Reminder to Service Representative: After you exchange the CPU card, notify the customer that the unique identification number of the system unit has changed. The customer needs to update the authorization number for any program that uses the identification number for access.

1.Align the CPU card with the front and rear card guides and the connector, and then press the CPU card down into the connector.

2.Replace the CPU shield on Models 340 and 350.

3.Do the Top Cover replacement procedure on page 3-4.

4.If the system unit has a rear cover, do the rear cover replacement procedure on page 3-3.

5.Set the power switches of the attached devices to On.

6.Set the power switch of the system unit to On.

3-30Installation and Service Guide

Page 89
Image 89
IBM 7012 manual CPU Card