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Ian & Stuart's Australian Mac 1993 September
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September 93.iso
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Apple System Features
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Mac RAM Setup.4May931
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1993-05-26
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Revised 4-May-93 Macintosh RAM Setup Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations SIMM Sizes SIMM RAM RAM Bank A: Bank B:
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration # of SIMMS x Size # of SIMMS x Size
Macintosh Plus "1, 2, 2.5, 4" "256K, 1 MB" 4 150ns 1 MB 2 x 256K 2 x 256K
Macintosh SE 2 MB 2 x 1 MB Empty
The Macintosh Plus and Macintosh SE require special RAM upgrading procedures. 2.5 MB 2 x 1 MB 2 x 256K
Please refer to the Apple Technical Procedures for RAM installation and upgrade procedures. 4 MB 2 x 1 MB 2 x 1 MB
The Macintosh Plus and SE cannot use 2-chip 1 MB SIMMs.
Macintosh Classic "1, 2, 2.5, 4" "256K, 1 MB" 2 120ns 1 MB Soldered to Motherboard
The Macintosh Classic has 1 MB of RAM soldered onto the main logic board. Additional RAM can be 2 MB Add Memory Expansion Card
added by using the Mac Classic expansion card. Apple's Macintosh Classic 1MB Memory Expansion 2.5 MB Memory Exp. Card + 2 x 256K
Card has 1 MB of additional RAM and two SIMM slots. 4 MB Memory Exp. Card + 2 x 1 MB
The Macintosh Classic cannot use 2-chip 1 MB SIMMs.
Macintosh Classic II "2, 4, 6, 10" "1 MB, 2 MB, 4 MB" 2 100ns 2 MB Soldered to Motherboard
The Macintosh Classic II will access 10 MB of memory when using System 7 in 32-bit mode. 4 MB 2 x 1 MB N/A
6 MB 2 x 2 MB N/A
10 MB 2 x 4 MB N/A
Color Classic "4, 6, 8, 10" "1 MB, 2 MB, 4 MB" 2 100ns 4 MB Soldered to Motherboard
Performa 250 6 MB 2 x 1 MB N/A
"The Macintosh Color Classic can access only 10 MB of memory when using System 7 in 32-bit mode, " 8 MB 2 x 2 MB N/A
even though the Color Classic accommodates 12MB of physical memory. 10 MB 2 x 4 MB N/A
Macintosh LC "2, 4, 6, 10" "1 MB, 2 MB, 4 MB" 2 100ns 2 MB Soldered to Motherboard
The Macintosh LC will access 10 MB of memory when using System 7 in 32-bit mode. 4 MB 2 x 1 MB N/A
6 MB 2 x 2 MB N/A
10 MB 2 x 4 MB N/A
Macintosh LC II "4, 6, 8, 10" "1 MB, 2 MB, 4 MB" 2 100ns 4 MB Soldered to Motherboard
Performa 400 6 MB 2 x 1 MB N/A
The Macintosh LC II / Performa 400 can access only 10 MB of memory when using System 7 8 MB 2 x 2 MB N/A
"in 32-bit mode, even though the LC II accommodates 12MB of physical memory." 10 MB 2 x 4 MB N/A
Macintosh LC III "4, 5, 6, 8, 12, 20, 36" "1, 2, 4, 8, 16, and 32 MB" 1 80ns 4 MB Soldered to Motherboard
Performa 450 5 MB 1 MB N/A
The Macintosh LC III will access more than 8 MB of memory when using System 7 in 32-bit mode. 6 MB 2 MB N/A
The Macintosh LC III requires 72-pin SIMMs. 8 MB 4 MB N/A
12 MB 8 MB N/A
20 MB 16 MB N/A
36 MB 32 MB N/A
Revised 4-May-93 Macintosh RAM Setup Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations SIMM Sizes SIMM RAM RAM Bank A: Bank B:
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration # of SIMMS x Size # of SIMMS x Size
Macintosh SE/30 "1, 2, 4, 5, 8," "256K, 1 MB, 4 MB" 8 120ns 1 MB 4 x 256K Empty
"Macintosh II †, ††" "16, 17, 20, 32" 2 MB 4 x 256K 4 x 256K
Macintosh IIx †† 4 MB 4 x 1 MB Empty
Macintosh IIcx 5 MB 4 x 1 MB 4 x 256K
† The Macintosh II requires the Mac II FDHD upgrade kit which includes the Mac IIx ROMS to recognize 8 MB 4 x 1 MB 4 x 1 MB
"4 MB SIMM modules in bank A. Without the FDHD upgrade, 4 MB SIMMS will only work " 16 MB 4 x 4 MB Empty
"in bank B, and 20 MB would be the maximum configuration." 17 MB 4 x 4 MB 4 x 256K
†† The Macintosh II and IIx require special 4 MB SIMMS. 20 MB 4 x 4 MB 4 x 1 MB
"The Macintosh SE/30, II, IIx, IIcx require Mode 32 or a similar product to use more than 8 MB memory." 32 MB 4 x 4 MB 4 x 4 MB
Quick Reference Chart
Macintosh IIsi "1, 2, 3, 5, 9, 17" "256K, 512K, 1 MB, 2 MB, 4 MB" 4 100ns 1 MB Soldered to Motherboard
The Macintosh IIsi will access more than 8 MB of memory by using System 7 in 32-bit mode. 2 MB 4 x 256K N/A
3 MB 4 x 512K N/A
5 MB 4 x 1 MB N/A
9 MB 4 x 2 MB N/A
17 MB 4 x 4 MB N/A
Macintosh IIci "1, 2, 3, 4, 5, 6, 8, 9, 10," "256K, 512K, 1 MB, 2 MB, 4 MB" 8 80ns 1 MB 4 x 256K Empty
"12, 16, 17, 18, 20, 24, 32" 2 MB 4 x 256K 4 x 256K
The Macintosh IIci will access more than 8 MB of memory by using System 7 in 32-bit mode. 3 MB 4 x 512K 4 x 256K
4 x 512K 4 x 512K
4 MB 4 x 1 MB Empty
5 MB 4 x 1 MB 4 x 256K
6 MB 4 x 1 MB 4 x 512K
8 MB 4 x 1 MB 4 x 1 MB
9 MB 4 x 2 MB 4 x 256K
10 MB 4 x 2 MB 4 x 512K
12 MB 4 x 2 MB 4 x 1 MB
16 MB 4 x 4 MB Empty
4 x 2 MB 4 x 2 MB
17 MB 4 x 4 MB 4 x 256K
18 MB 4 x 4 MB 4 x 512K
20 MB 4 x 4 MB 4 x 1 MB
24 MB 4 x 4 MB 4 x 2 MB
32 MB 4 x 4 MB 4 x 4 MB
Revised 4-May-93 Macintosh RAM Setup Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations SIMM Sizes SIMM RAM RAM Bank A: Bank B:
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration # of SIMMS x Size # of SIMMS x Size
Macintosh IIfx "4, 8, 16, 20, 32" "1 MB, 4 MB" 8 80ns 4 MB 4 x 1 MB Empty
The Macintosh IIfx requires 64-pin SIMMs. It will access more than 8 MB of memory by using 8 MB 4 x 1 MB 4 x 1 MB
System 7 in 32-bit mode. 16 MB 4 x 4 MB Empty
"16 MB SIMMs may be used, but are not supported by Apple. " 20 MB 4 x 4 MB 4 x 1 MB
32 MB 4 x 4 MB 4 x 4 MB
Macintosh IIvx "4, 5, 8, 12, 20, 68" "256K, 1 MB, 2 MB, 4 MB" 4 80ns 4 MB Soldered to Motherboard
The Macintosh IIvx will access more than 8 MB of memory by using System 7 in 32-bit mode. 5 MB 4 x 256K N/A
"16 MB SIMMs may be used, but are not supported by Apple. " 8 MB 4 x 1 MB N/A
12 MB 4 x 2 MB N/A
20 MB 4 x 4 MB N/A
68 MB 4 x 16 MB N/A
Centris 610 4 to 68 "4, 8, 16 and 32 MB" 2 80ns 4 MB Soldered to Motherboard
The Centris 610 requires 72-pin SIMMs. It will access more than 8 MB of memory by using System 7 in 32-bit mode.
"The Centris 610 can use any combination of 4, 8, 16, and 32 MB memory SIMMs in any combination of slots."
Centris 650 4 to 132 "4, 8, 16 and 32 MB" 4 80ns 4 or 8 MB Soldered to Motherboard
The Centris 650 requires 72-pin SIMMs. It will access more than 8 MB of memory by using System 7 in 32-bit mode.
"The Centris 650 can use any combination of 4, 8, 16, and 32 MB memory SIMMs in any combination of slots. It can have either 4 or 8 MB of memory "
soldered to the motherboard.
"If you wish to use memory interleaving for better performance, you must the same size of memory SIMMs in adjacent SIMM slots. Also, you can only "
interleave the memory SIMMs in the left or right SIMM slots. You cannot interleave memory across the middle two SIMM slots.
Revised 4-May-93 Macintosh Quadra RAM Setup Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations SIMM Sizes SIMM RAM RAM Bank A: Bank B: Bank C Bank D
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration # of SIMMS x Size # of SIMMS x Size # of SIMMS x Size # of SIMMS x Size
Quadra 700 "4, 8, 20, 68" "1 MB, 4 MB" 4 80ns 4 MB Soldered to Motherboard
The Quadra 700 will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB 4 x 1 MB N/A N/A N/A
"16 MB SIMMs may be used, but are not supported by Apple. " 20 MB 4 x 4 MB N/A N/A N/A
68 MB 4 x 16 MB N/A N/A N/A
Quadra 800 8 to 136 "4, 8, 16, and 32 MB" 4 60ns 8 MB Soldered to Motherboard
The Quadra 800 requires 72-pin SIMMs. It will access more than 8 MB of memory by using System 7 in 32-bit mode.
"The Quadra 800 can use any combination of 4, 8, 16, and 32 MB memory SIMMs in any combination of slots. "
"If you wish to use memory interleaving for better performance, you must the same size of memory SIMMs in adjacent SIMM slots. Also, you can only "
interleave the memory SIMMs in the left or right pairs of SIMM slots. You cannot interleave memory across the middle two SIMM slots.
Quadra 900 "4, 8, 12, 16, 20, 24, 28, 32, " "1 MB, 4 MB" 16 80ns 4 MB 4 x 1 MB Empty Empty Empty
Quadra 950 "36, 40, 48, 52, 64....256" 8 MB 4 x 1 MB 4 x 1 MB Empty Empty
"The Quadra 900 has 4 MB of factory-installed memory, while the Quadra 950 has 8 MB of " 12 MB 4 x 1 MB 4 x 1 MB 4 x 1 MB Empty
factory-installed memory. 16 MB 4 x 1 MB 4 x 1 MB 4 x 1 MB 4 x 1 MB
The Quadra 900 and 950 will access more than 8 MB of memory by using System 7 in 32-bit mode. or 4 x 4 MB Empty Empty Empty
"16 MB SIMMs may be used, but are not supported by Apple. " 20 MB 4 x 4 MB 4 x 1 MB Empty Empty
24 MB 4 x 4 MB 4 x 1 MB 4 x 1 MB Empty
28 MB 4 x 4 MB 4 x 1 MB 4 x 1 MB 4 x 1 MB
32 MB 4 x 4 MB 4 x 4 MB Empty Empty
36 MB 4 x 4 MB 4 x 4 MB 4 x 1 MB Empty
40 MB 4 x 4 MB 4 x 4 MB 4 x 1 MB 4 x 1 MB
48 MB 4 x 4 MB 4 x 4 MB 4 x 4 MB Empty
52 MB 4 x 4 MB 4 x 4 MB 4 x 4 MB 4 x 1 MB
64 MB 4 x 4 MB 4 x 4 MB 4 x 4 MB 4 x 4 MB
or 4 x 16 MB
Other configurations are supported between 64 MB and 256 MB.
256 MB 4 x 16 MB 4 x 16 MB 4 x 16 MB 4 x 16 MB
Revised 4-May-93 Macintosh Portable RAM Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations Expansion Card Sizes SIMM RAM RAM RAM Expansion Card
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration
Macintosh Portables "1, 2, 3, 4, 5, 6, 7, 8, 9 " N/A-See note ††† 2 100ns 1 MB Soldered to Motherboard
The Macintosh Portables have 1MB of RAM soldered to the main logic board. The Original Portable 2MB to 8 or 9 Add either RAM and/or PDS Card.
uses Static RAM and the Backlit uses Pseudo-Static RAM. Additional RAM can be added by using an
expansion card which can be used in the RAM slot or PDS slot. These expansion cards can have from 1-4MB of RAM.
PowerBook 100 "2, 4, 6, 8" "2 MB, 4 MB, 6 MB " 1 100ns 2 MB Soldered to Motherboard
4 MB Add 2 MB Expansion Card
6 MB Add 4 MB Expansion Card
8 MB Add 6 MB Expansion Card
PowerBook 140 "2, 4, 6, 8" "2 MB, 4 MB, 6 MB " 1 100ns 2 MB Soldered to Motherboard
4 MB Add 2 MB Expansion Card
6 MB Add 4 MB Expansion Card
8 MB Add 6 MB Expansion Card
PowerBook 145 "2, 4, 6, 8" "2 MB, 4 MB, 6 MB " 1 100ns 2 MB Soldered to Motherboard
4 MB Add 2 MB Expansion Card
6 MB Add 4 MB Expansion Card
8 MB Add 6 MB Expansion Card
PowerBook 160 "4, 8, 12, 14 " "4 MB, 8 MB, 10 MB" 1 85ns 4 MB Soldered to Motherboard
The PowerBook 160 will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB Add 4 MB Expansion Card
Memory Expansion Cards larger than 4MB must have 85ns fast RAM. 4 MB cards can use 100ns RAM. 12 MB Add 8 MB Expansion Card
14 MB Add 10 MB Expansion Card
PowerBook 165c "4, 8, 12, 14 " "4 MB, 8 MB, 10 MB" 1 85ns 4 MB Soldered to Motherboard
The PowerBook 165c will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB Add 4 MB Expansion Card
Memory Expansion Cards larger than 4MB must have 85ns fast RAM. 4 MB cards can use 100ns RAM. 12 MB Add 8 MB Expansion Card
14 MB Add 10 MB Expansion Card
Revised 4-May-93 Macintosh Portable RAM Configurations Table "© 1993, Apple Computer Australia"
Macintosh Possible Physical Possible # Of Min
Model RAM Configurations Expansion Card Sizes SIMM RAM RAM RAM Expansion Card
(MB) (Mac OS) (Supported by Apple) Slots Speed Configuration
PowerBook 170 "4, 6, 8" "2 MB, 4 MB, 6 MB " 1 100ns 2 MB Soldered to Motherboard
4 MB Add 2 MB Expansion Card
6 MB Add 4 MB Expansion Card
8 MB Add 6 MB Expansion Card
PowerBook 180 "4, 8, 12, 14" "4 MB, 8 MB, 10 MB" 1 85ns 4 MB Soldered to Motherboard
The PowerBook 180 will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB Add 4 MB Expansion Card
Memory Expansion Cards larger than 4MB must have 85ns fast RAM. 4 MB cards can use 100ns RAM. 12 MB Add 8 MB Expansion Card
14 MB Add 10 MB Expansion Card
PowerBk Duo 210 "4, 8, 12, up to 24" "4 MB, 8 MB, 12 MB, 16 MB" 1 70ns 4 MB Soldered to Motherboard
The PowerBook Duo 210 will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB Add 4 MB Expansion Card
12 MB Add 8 MB Expansion Card
16 MB Add 12 MB Expansion Card
20 MB Add 16 MB Expansion Card
PowerBk Duo 230 "4, 8, 12, up to 24" "4 MB, 8 MB, 12 MB, 16 MB" 1 70ns 4 MB Soldered to Motherboard
The PowerBook Duo 230 will access more than 8 MB of memory by using System 7 in 32-bit mode. 8 MB Add 4 MB Expansion Card
12 MB Add 8 MB Expansion Card
16 MB Add 12 MB Expansion Card
20 MB Add 16 MB Expansion Card