Macintosh PowerBook 520, 520c, 540, 540c, 550c, 500 with PowerPC - wiki
CPU
68LC040 @ 25.00MHz (520, 520c)
68LC040 @ 33.33MHz (540, 540c)
68040 @ 33.33MHz (550c)
PowerPC 603e @ 100.00MHz (500 with PowerPC)
FPU onboard (550c, 500 with PowerPC)
System bus @ 25.00MHz; 32-bit* (520, 520c)
System bus @ 33.33MHz; 32-bit* (540, 540c, 550c, 500 with PowerPC)
*All 500 series machines operate with a 32-bit memory bus, but only a 16-bit I/O bus.
No L2 cache is onboard; aftermarket PowerPC upgrades such as Newer Technology's NUpowr 500/183c have 128k L2 cache onboard the CPU module.
Memory
4MB onboard; 70ns or faster; 36MB max (520, 520c, 540, 540c, 550c)
8MB onboard; 70ns or faster; 40MB max (500 with PowerPC; some aftermarket PowerPC upgrades)
0MB onboard; 70ns or faster; 32MB max (some aftermarket PowerPC upgrades)
24MB onboard; 70ns or faster; 56MB max (one version of NewerTech's 183MHz 603 card claims to support this; not yet confirmed)
24-bit mode?
Machine ID
72 (520, 520c, 540, 540c, 550c)
126 (500 with PowerPC)
CPU
68LC040 @ 25.00MHz (520, 520c)
68LC040 @ 33.33MHz (540, 540c)
68040 @ 33.33MHz (550c)
PowerPC 603e @ 100.00MHz (500 with PowerPC)
FPU onboard (550c, 500 with PowerPC)
System bus @ 25.00MHz; 32-bit* (520, 520c)
System bus @ 33.33MHz; 32-bit* (540, 540c, 550c, 500 with PowerPC)
*All 500 series machines operate with a 32-bit memory bus, but only a 16-bit I/O bus.
No L2 cache is onboard; aftermarket PowerPC upgrades such as Newer Technology's NUpowr 500/183c have 128k L2 cache onboard the CPU module.
Memory
4MB onboard; 70ns or faster; 36MB max (520, 520c, 540, 540c, 550c)
8MB onboard; 70ns or faster; 40MB max (500 with PowerPC; some aftermarket PowerPC upgrades)
0MB onboard; 70ns or faster; 32MB max (some aftermarket PowerPC upgrades)
24MB onboard; 70ns or faster; 56MB max (one version of NewerTech's 183MHz 603 card claims to support this; not yet confirmed)
24-bit mode?
Machine ID
72 (520, 520c, 540, 540c, 550c)
126 (500 with PowerPC)
Main Logic Board (520, 520c, 540, 540c, 500 with PowerPC) 820-0550-A
Main Logic Board (520, 520c, 540, 540c, 500 with PowerPC) 820-0615-A
Main Logic Board (550c) 820-0709-A
CPU Board (520, 520c) 820-0559-A
CPU Board (540, 540c) 820-0559-A
CPU Board (550c) 820-0559-A (alternate without 'BANZAI' sticker)
CPU Board (500 with PowerPC) 820-0579-A
8MB Memory Module - 820-0455-A
32MB Memory Module - 120174 REV A
PowerPort/Mercury for PowerBook 500 - Global Village Communication A540
Express Modem DAA II - 820-0480-A / 820-0479-A / 820-0502-B
PowerBook PCMCIA Expansion Module - M2864 V1/B
M2864 V1/B - module enclosure removed
PowerBook PCMCIA Expansion Module - M2864 V1/C
M2864 V1/C - module enclosure removed
Trackpad (520, 520c, 540, 540c) 820-0507-02
821-0025-A / 632-0021-A - Palmrest cable/Lid switch/Trackpad button
616-0021 - PRAM battery
821-0025-A / 632-0021-A - Palmrest cable/Lid switch/Trackpad button
616-0021 - PRAM battery
Clamshell Board (headers for microphone & stereo speakers located on bezel) (520, 520c, 540, 540c) 820-0458-A
821-0027-A / 632-0016-A (Inverter Board cable)
632-0028 REV. A (520c) (Display cable - Sharp Color FSTN)
632-0030 REV. A (540c) (Display cable - Toshiba Color TFT)
632-0032 REV. A (520) (Display cable - Sharp Gray FSTN) 821-0040-A
632-0033 REV. A (540) (Display cable - Hosiden Mono TFT)
821-0056-A / 632-0050-A (Clamshell Board hinge cable)
821-0027-A / 632-0016-A (Inverter Board cable)
632-0028 REV. A (520c) (Display cable - Sharp Color FSTN)
632-0030 REV. A (540c) (Display cable - Toshiba Color TFT)
632-0032 REV. A (520) (Display cable - Sharp Gray FSTN) 821-0040-A
632-0033 REV. A (540) (Display cable - Hosiden Mono TFT)
821-0056-A / 632-0050-A (Clamshell Board hinge cable)
Display Bezel - 815-1833 REV A
821-0063 / 632-0056-01 (Speaker cable, soldered)
821-0028 / 632-0056-01 (Speaker cable, soldered)
821-0028-A / 632-0018-A (Speaker cable wth speaker plugs)
821-0063 / 632-0056-01 (Speaker cable, soldered)
821-0028 / 632-0056-01 (Speaker cable, soldered)
821-0028-A / 632-0018-A (Speaker cable wth speaker plugs)
Passive Matrix 4-bit Grayscale Display (520) Sharp MFSTN LM64P858
Passive Matrix 8-bit Color Display (520c) Sharp CFSTN LM64C12P
Active Matrix 8-bit Grayscale Display (540) Hosiden MTFT
Active Matrix 16-bit Color Display (540c) Toshiba C-TFT LTM09C017 (also used in PowerBook 2300c?)
Inverter/LED/Button Board (520) GCMK-G3X / 614-0046 / PCU-861 / CXA-2021F1
Inverter/LED/Button Board (520c, 540, 540c) GCMK-G3X / 614-0026 / PCU-773F1 / CXA-2021F1
