Compaq Portable II User Manual

10 U46 U47 Replace system board
20 U46 U47 Replace system board
40 U46 U47 Replace system board
80 U46 U47 Replace system board
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Table 5-15. Version 2 System Board using 64K RAMs (0 - 256 Kbytes)
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XX = 00 (Bank 0)
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Data Bit B = 0 B = 1
YY or ZZ Low High Required Action
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00 U32 U35 Replace memory chip
01 U24 U27 Replace memory chip
02 U17 U20 Replace memory chip
04 U9 U12 Replace memory chip
08 U41 U42 Replace memory chip
10 U33 U34 Replace memory chip
20 U25 U26 Replace memory chip
40 U18 U19 Replace memory chip
80 U10 U11 Replace memory chip
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XX = 02 (Bank 1)
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Data Bit B = 0 B = 1
YY or ZZ Low High Required Action
------------------------------------------------------------------------------
00 U40 U43 Replace system board
01 U31 U16 Replace system board
02 U31 U16 Replace system board
04 U31 U16 Replace system board
08 U31 U16 Replace system board
10 U23 U8 Replace system board
20 U23 U8 Replace system board
40 U23 U8 Replace system board
80 U23 U8 Replace system board
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Table 5-16. Version 1 System Board using 256K RAMs (0 - 640 Kbytes)

Compaq Portable II Specifications

General

Brand	Compaq
Model	Portable II
Category	Desktop
Language	English