Power Book G Series Identifying Power Book G Series Circuit Boards

Discussion: When replacing PowerBook G3 Series circuit boards it is very important to check the ID codes to verify that you are ordering the correct part.

The ID codes listed below can be found within the serial numbers that are attached to the circuit boards. They are not part of the whole unit serial number that is attached to the bottom of the PowerBook.

These serial numbers can be located in the following locations.

  • Microprocessor Board: Follow the instructions in Service Source for removing the microprocessor card. With the card removed, look at the serial number/bar code label on the SODIMM conector on the bottom side of the card.
  • I/O Logic Board: This serial number label is viewable from the opening for the PC Card slots. You don't need to disassemble the PowerBook. Gently push in the PC Card slot doors and look inside the opening. You should see the serial number/bar code label. You may need to use a small flashlight to see the lettering on the label.

The ID codes are printed in one of two ways:

  • Either the next-to-last three characters in the serial number. For example, if the serial number is *CK8xxxxxyyyx* then the ID code would be "yyy".
  • Or within the last 5 characters of the serial number. For example, if the serial number is *KC8xxxxxxyyyxx* then the ID code would be "yyy". This type of serial number label has Singapore printed directly after the serial number.

Exchange Parts Like for Like

Unless directed otherwise in the Service Parts Database, exchange parts like for like. Refer to the following table for the listing of ID Codes.

Microprocessor Board

Description

Service Part #

ID Code

233 MHz/0 cache

661-2035

BKF

233 MHz/512K cache

661-2089

DW3, ERN

250 MHz/1 M cache

661-2036

BKE

266 MHz/1 M cache

661-2097

EE8

292 MHz/1 M cache

661-2021

BAD

300 MHz/1 M cache

661-2088

DW4

I/O Logic Board

Description

Service Part #

ID Code

2 MB SGRAM, no TV out

661-2058

BKG, DGK, DFL

2 MB SGRAM, TV out

661-2094

DW6

0 0

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