Power Macintosh: Memory Configurations

This article discusses the memory configurations for desktop Power Macintosh computers.

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The following table includes the memory configurations for desktop Power Macintosh computers. For information about upgrading the memory in another Macintosh computer, use the search string "memory configurations" to locate the following articles:

Macintosh RAM Configurations for Power Macintosh Computers

(Including Performa and LC)

Computer
Soldered RAM (MB)
No. of SIMM/ DIMM Slots
Supported SIMM/ DIMM Sizes (MB)
DRAM Configs (MB)
RAM Speed (ns)
RAM Type
Max. RAM (MB)
Install in Groups of
Power Mac 4400
0
3
8, 16, 32, 64 DIMM slot 1 supports single bank DIMMs only (See Note 3)
60
168-pin DIMM 3.3 V EDO
160
1
Power Mac 5200/75 LC, 5260/100
Performa 5200, 5210, 5215, 5220, 5260, 5300, 5300/100LC
0
2
4, 8, 16, 32 8, 12, 16, 20, 24, 32, 36, 40, 48, 64
80
72-pin SIMM
64
1
Power Mac 5400
Performa 6400, 6360
8
2
4, 8, 16, 32 8, 12, 16, 20, 24, 28, 32, 40, 44, 48, 56, 72, 76, 80, 88, 104, 136
70
168-pin DIMM
136
1
Power Mac 5500, 6500
0
2
4, 8, 16, 32, 64 (See Note 3)
60
168-pin DIMM 5 V EDO
128
1
Performa 6200, 6205, 6214, 6216, 6218, 6220, 6230, 6290, 6300, 6320
0
2
4, 8, 16, 32 4, 8, 12, 16, 20, 24, 32, 36, 40, 48, 64
80
72-pin SIMM
64
1
Power Mac 6100
Performa 6110, 6112, 6115, 6116, 6117, 6118
8
2
4, 8, 16, 32 8, 16, 24, 40, 72
80
72-pin SIMM
72
2
Power Mac 7100 Series
8
4
4, 8, 16, 32 8, 16, 24, 32, 40, 48, 56, 72, 80, 104, 136
80
72-pin SIMM
136
2
Power Mac 7200 Series
0
4
4, 8, 16, 32, 64 (See Note 3)
70
168-pin DIMM
256
1, 2
Power Mac 7500 Series
0
8
4, 8, 16, 32, 64 (See Note 3)
70
168-pin DIMM
512
1, 2
Power Mac 7300, 7600 Series
0
8
4, 8, 16, 32, 64 (See Note 3)
70
168-pin DIMM
512
1, 2
Power Mac 8100 Series
8
8
4, 8, 16, 32 (See Note 3)
80
72-pin SIMM
256
2
Power Mac 8500, 8600 Series
0
8
4, 8, 16, 32, 64 (See Note 3)
70
168-pin DIMM
512
1, 2
Power Mac 9500, 9600 Series
0
12
4, 8, 16, 32, 64 (See Note 3)
70
168-pin DIMM
768
1, 2
Power Macintosh G3 Minitower
0
3
8, 16, 32, 64, 128, 256 MB DIMMs (See Note 5)  
100
MHz/10
168-pin DIMMs 3.3 V, unbuffered, 64-bit wide SDRAM
768
1
Power Macintosh G3 Desktop
0
3
8, 16, 32, 64, 128, 256 MB DIMMs (See Notes 3, 5),  
100
MHz/10
Same as Minitower
768
(See Note 4)
1
Power Macintosh G3 All-in-one
0
3
8, 16, 32, 64, 128 MB DIMMs  
100
MHz/10
Same as Minitower
384
1
Power Macintosh G3 (Blue and White)
0
4
Up to 256 MB (See Note 3)
10
168 pin SDRAM DIMMs,64-bit wide, non-parity,3.3 V, unbuffered, PC-100 1 GB
1
Power Mac G4 (PCI Graphics)
0
4
Up to 256 MB (See Note 3)
10
168 pin SDRAM DIMMs,64-bit wide, non-parity,3.3 V, unbuffered, PC-100 1 GB
1
Power Mac G4 (AGP Graphics)
0
4
Up to 512 MB (See Note 3)
10
168 pin SDRAM DIMMs,64-bit wide, non-parity,3.3 V, unbuffered, PC-100 2 GB (See Note 6)
1
Power Mac G4 Cube
0
3
Up to 512 MB (See Note 3)
10
168 pin SDRAM DIMMs,64-bit wide, non-parity,3.3 V, unbuffered, PC-100 (See Note 7) 1.5 GB
1
Power Mac G4 (Gigabit Ethernet)
0
4
Up to 512 MB (See Note 3)
10
168 pin SDRAM DIMMs,64-bit wide, non-parity,3.3 V, unbuffered, PC-100 2 GB (See Note 6)
1
Power Mac G4 (Digital Audio), (QuickSilver) and (QuickSilver 2002)
0
3
Up to 512 MB (See Note 3)
10
168 pin SDRAM DIMMs, 8 byte, non-parity, 3.3 V, unbuffered, PC-133 1.5 GB
1
Power Mac G4 (Mirrored Drive Doors)
0
4
256 MB (64-bit-wide, 128-Mbit) and 512 MB (64-bit-wide, 256-Mbit) (See Note 3) DDR 266 (867GHz) DDR 333 (1.0, 1.25 GHz) 184 pin PC 2100 DDR SDRAM (867 GHz), PC 2700 DDR SDRAM (1.0, 1.25 GHz) 2 GB (See Note 6)
1


Notes


    1. The Power Macintosh 7300, 7500, 7600, 8500, 8600, 9500, and 9600 series computers have a memory interleaving feature. Although you can install DIMMs one at a time, you can get increased performance by installing them in pairs.

    2. 128 MB DIMMs are available and can fit into the memory slots on the Power Macintosh 7200, 7500, 7600, 8500, and 9500 computers. However, these DIMMs have not be tested with these computers and are therefore not supported by Apple.

    3. Too many to list.

    4. A Power Macintosh G3 in a desktop enclosure is capable of taking 128 MB DIMMs. However, smaller 128 MB DIMMs must be used due to space constraints. For additional information, refer to article 24343, "Power Macintosh G3 (Desktop): 128 MB Memory DIMM Support"

    5. Only on the Revision 3 of the logic board. To identify which revision logic board you have, refer to article 24924: "Power Macintosh G3: Identifying The Logic Board Revision".

    6. Although 2 GB can be physically installed, a maximum of 1.5 GB is recognized by Mac OS 9. Mac OS X will see the entire 2 GB.

    7. The Power Mac G4 Cube requires a shorter DIMM. See technical document 42671 "Power Mac G4 Cube: Must Use 35 mm RAM DIMMs"

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