Theory of Operation
4-3
4.2.2
Memory Subsystem
The memory subsystem comprises the following components:
♦
Main memory
♦
L2 Secondary Memory (cache)
♦
Flash ROM
The Extensa Series uses fast Extended Data Out (EDO) DRAM for main and video
memory and high-speed synchronous, pipelined burst SRAM for L2 cache memory.
Main BIOS and Video BIOS are stored in Flash ROM.
4.2.2.1 Main Memory
The standard 60x Series notebook comes with 8 MB of Main memory installed on the
attached soDIMM. Memory expansion accommodations are provided via a standard
soDIMM connector on the bottom of the Motherboard Assembly.
The 65x Series Notebooks come standard with 16 MB main memory, expandable to
80 MB.
4.2.2.2 Flash ROM
All versions of the Extensa notebook family use a "Flash" ROM that contains both the
main system BIOS and the VGA BIOS. The Flash ROM contains "Boot Block" logic that
allows downloading new versions of BIOS without destroying the Boot Load area.
The Flash ROM execution is 8 bits wide. However, better performance can be attained
by enabling the Shadow ROM in the CMOS setup routine or by selecting the Windows
Control Panel Applet. When the Shadow ROM is enabled, BIOS is copied into 32-bit
high speed system.
4.2.3 Video Subsystem
The video subsystem is implemented on the VGA Video Board and on the Motherboard
Assemblies.
The notebook contains a built-in 10.4 inch (or larger) LCD and features simultaneous
LCD and external VGA display.
The video subsystem includes a 1 MB (60x Series) or 2 MB (65x Series) DRAM memory,
32-bit DRAM bus, and separate display and memory clocks. An additional frame buffer/
accelerator DRAM increases the available memory band width for CPU accesses. The
Содержание Extensa 600 Series
Страница 1: ...Maintenance Manual ExtensaTM 60x 65x Series Notebook Computers 9813564 0001 Rev A October 1996 ...
Страница 46: ......
Страница 55: ...Theory of Operation 4 9 Figure 4 3 M1521 Pin Assignments ...
Страница 61: ...Theory of Operation 4 15 Figure 4 7 M6377 Chip Pinouts ...
Страница 65: ...Theory of Operation 4 19 Figure 4 9 PCMCIA Controller Simplified Block Diagram ...
Страница 84: ......
Страница 112: ...6 28 Field Service Figure 6 24 Removing Replacing the FIR Audio Board ...
Страница 118: ......
Страница 127: ...Model 60x Maintenance Data A 9 Figure A 4 Motherboard PWB Logic Diagrams Sheet 1 of 32 ...
Страница 128: ...A 10 Model 60x Maintenance Data Figure A 4 Motherboard PWB Logic Diagrams Sheet 2 of 32 ...
Страница 129: ...Model 60x Maintenance Data A 11 Figure A 4 Motherboard PWB Logic Diagrams Sheet 3 of 32 ...
Страница 130: ...A 12 Model 60x Maintenance Data Figure A 4 Motherboard PWB Logic Diagrams Sheet 4 of 32 ...
Страница 131: ...Model 60x Maintenance Data A 13 Figure A 4 Motherboard PWB Logic Diagrams Sheet 5 of 32 ...
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Страница 133: ...Model 60x Maintenance Data A 15 Figure A 4 Motherboard PWB Logic Diagrams Sheet 7 of 32 ...
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Страница 135: ...Model 60x Maintenance Data A 17 Figure A 4 Motherboard PWB Logic Diagrams Sheet 9 of 32 ...
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Страница 143: ...Model 60x Maintenance Data A 25 Figure A 4 Motherboard PWB Logic Diagrams Sheet 17 of 32 ...
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Страница 145: ...Model 60x Maintenance Data A 27 Figure A 4 Motherboard PWB Logic Diagrams Sheet 19 of 32 ...
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Страница 147: ...Model 60x Maintenance Data A 29 Figure A 4 Motherboard PWB Logic Diagrams Sheet 21 of 32 ...
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Страница 151: ...Model 60x Maintenance Data A 33 Figure A 4 Motherboard PWB Logic Diagrams Sheet 25 of 32 ...
Страница 152: ...A 34 Model 60x Maintenance Data Figure A 4 Motherboard PWB Logic Diagrams Sheet 26 of 32 ...
Страница 153: ...Model 60x Maintenance Data A 35 Figure A 4 Motherboard PWB Logic Diagrams Sheet 27 of 32 ...
Страница 154: ...A 36 Model 60x Maintenance Data Figure A 4 Motherboard PWB Logic Diagrams Sheet 28 of 32 ...
Страница 155: ...Model 60x Maintenance Data A 37 Figure A 4 Motherboard PWB Logic Diagrams Sheet 29 of 32 ...
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Страница 157: ...Model 60x Maintenance Data A 39 Figure A 4 Motherboard PWB Logic Diagrams Sheet 31 of 32 ...
Страница 158: ...A 40 Model 60x Maintenance Data Figure A 4 Motherboard PWB Logic Diagrams Sheet 32 of 32 ...
Страница 167: ...Model 65x Maintenance Data B 9 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 1 of 36 ...
Страница 168: ...B 10 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 2 of 36 ...
Страница 169: ...Model 65x Maintenance Data B 11 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 3 of 36 ...
Страница 170: ...B 12 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 4 of 36 ...
Страница 171: ...Model 65x Maintenance Data B 13 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 5 of 36 ...
Страница 172: ...B 14 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 6 of 36 ...
Страница 173: ...Model 65x Maintenance Data B 15 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 7 of 36 ...
Страница 174: ...B 16 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 8 of 36 ...
Страница 175: ...Model 65x Maintenance Data B 17 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 9 of 36 ...
Страница 176: ...B 18 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 10 of 36 ...
Страница 177: ...Model 65x Maintenance Data B 19 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 11 of 36 ...
Страница 178: ...B 20 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 12 of 36 ...
Страница 179: ...Model 65x Maintenance Data B 21 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 13 of 36 ...
Страница 180: ...B 22 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 14 of 36 ...
Страница 181: ...Model 65x Maintenance Data B 23 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 15 of 36 ...
Страница 182: ...B 24 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 16 of 36 ...
Страница 183: ...Model 65x Maintenance Data B 25 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 17 of 36 ...
Страница 184: ...B 26 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 18 of 36 ...
Страница 185: ...Model 65x Maintenance Data B 27 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 19 of 36 ...
Страница 186: ...B 28 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 20 of 36 ...
Страница 187: ...Model 65x Maintenance Data B 29 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 21 of 36 ...
Страница 188: ...B 30 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 22 of 36 ...
Страница 189: ...Model 65x Maintenance Data B 31 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 23 of 36 ...
Страница 190: ...B 32 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 24 of 36 ...
Страница 191: ...Model 65x Maintenance Data B 33 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 25 of 36 ...
Страница 192: ...B 34 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 26 of 36 ...
Страница 193: ...Model 65x Maintenance Data B 35 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 27 of 36 ...
Страница 194: ...B 36 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 28 of 36 ...
Страница 195: ...Model 65x Maintenance Data B 37 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 29 of 36 ...
Страница 196: ...B 38 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 30 of 36 ...
Страница 197: ...Model 65x Maintenance Data B 39 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 31 of 36 ...
Страница 198: ...B 40 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 32 of 36 ...
Страница 199: ...Model 65x Maintenance Data B 41 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 33 of 36 ...
Страница 200: ...B 42 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 34 of 36 ...
Страница 201: ...Model 65x Maintenance Data B 43 Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 35 of 36 ...
Страница 202: ...B 44 Model 65x Maintenance Data Figure B 4 Extensa 65x Series Main Board Logic Diagrams Sheet 36 of 36 ...
Страница 203: ...Model 65x Maintenance Data B 45 Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 1 of 6 ...
Страница 204: ...B 46 Model 65x Maintenance Data Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 2 of 6 ...
Страница 205: ...Model 65x Maintenance Data B 47 Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 3 of 6 ...
Страница 206: ...B 48 Model 65x Maintenance Data Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 4 of 6 ...
Страница 207: ...Model 65x Maintenance Data B 49 Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 5 of 6 ...
Страница 208: ...B 50 Model 65x Maintenance Data Figure B 5 Extensa 65x Series VGA Board Logic Diagrams Sheet 6 of 6 ...
Страница 212: ...Printed in U S A ...
