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TITLE
Memory Configurations: Other Desktop Macintosh
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Article ID:
Created:
Modified:
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6784
3/26/91
2/11/00
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TOPIC
DISCUSSION
The tables in this article show the memory configurations for desktop Macintosh computers. For information about upgrading the memory in another Macintosh computer, refer to the following TIL articles:
Note:
The following computers are not 32-bit clean. They require the 32-bit System Enabler for System 7.1 or the MODE32 Version 7.5 for System 7.5.x in order to run in 32-bit mode and take advantage of more than 8 MB of physical RAM: Macintosh SE/30, II, IIx, and IIcx.
Note:
Memory interleaving is supported in the Macintosh Quadra 800 and 650 computers when SIMMs are installed in pairs.
Macintosh RAM Configurations: Compact Macintosh Models
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Computer
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Soldered RAM (MB)
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No. of SIMM/ DIMM Slots
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Supported SIMM/ DIMM Sizes (MB)
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DRAM Configs (MB)
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RAM Speed (ns)
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RAM Type
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Max. RAM (MB)
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Install in Groups of
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128
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128K
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0
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N/A
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128K
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N/A
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N/A
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N/A
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512K/512KE
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512K
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0
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N/A
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512K
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N/A
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N/A
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N/A
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2
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Plus
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0
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4
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256K, 1
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1, 2.5, 4
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150
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30-pin SIMM
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4
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2
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SE
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0
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4
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256K, 1
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1, 2, 2.5, 4
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150
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30-pin SIMM
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4
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2
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SE/30
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0
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8
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256K, 1, 4
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1, 2, 4, 5, 8, 16,17,20,32
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120
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30-pin SIMM
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32
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4
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Classic
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1
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2
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256K, 1
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1, 2, 2.5, 4
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150
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30-pin SIMM
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4
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2
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Classic II,
Performa 200
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2
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2
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1,2,4
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2, 4, 6, 10
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100
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30-pin SIMM
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10
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2
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Color Classic
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4
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2
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1,2,4
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4, 6, 8, 10
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100
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30-pin SIMM
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10
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2
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Macintosh RAM Configurations: Macintosh II Models
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Computer
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Soldered RAM (MB)
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No. of SIMM/ DIMM Slots
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Supported SIMM/ DIMM Sizes (MB)
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DRAM Configs (MB)
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RAM Speed (ns)
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RAM Type
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Max. RAM (MB)
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Install in Groups of
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II
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0
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8
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256K,1,4,16
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1, 2, 4, 5, 8, 16, 17, 20, 32, 64, 65, 68, 80,128
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120
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30-pin SIMM
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128
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4
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IIx
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0
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8
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256K,1,4,16
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1, 2, 4, 5, 8,16,17,20,32, 64, 65, 68,80,128
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120
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30-pin SIMM
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128
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4
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IIcx
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0
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8
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256K,1,4,16
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1, 2, 4, 5, 8, 16, 17, 20, 32, 64, 65, 68,80,128
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120
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30-pin SIMM
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128
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4
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IIci
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0
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8
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256K,512K,1,2,4,16
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1,2,3,4,5,6,8, 9, 10, 12, 16, 17, 18, 20, 24, 32 to 128
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80
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30-pin SIMM
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128
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4
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IIfx
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0
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8
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1,4,16
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4,8,16, 20, 32 to 128
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80
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64-pin SIMM
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128
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4
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IIsi
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1
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4
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256K,512K,1,2,4
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1, 2, 3, 5, 9, 17
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100
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30-pin SIMM
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17
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4
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IIvi,IIvx,
Performa 600
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4
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4
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256K,1,2,4,16
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4, 5, 8, 12, 20, 68
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80
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30-pin SIMM
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68
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4
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Macintosh RAM Configurations: LC & Performa Models
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Computer
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Soldered RAM (MB)
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No. of SIMM/ DIMM Slots
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Supported SIMM/ DIMM Sizes (MB)
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DRAM Configs (MB)
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RAM Speed (ns)
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RAM Type
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Max. RAM (MB)
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Install in Groups of
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LC
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2
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2
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1,2,4
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2, 4, 6, 10
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100
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30-pin SIMM
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10
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2
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LC II
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2
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2
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1,2,4
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2, 4, 6, 10
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100
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30-pin SIMM
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10
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2
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Performa 400, 405, 410, 430
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4
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2
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1,2,4
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4, 6, 8, 10
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100
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30-pin SIMM
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10
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2
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LC III,
Performa 450,460, 466,467
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4
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1
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 475,
Quadra 605,
Performa 475, 476
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4
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1
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 520
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4
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1
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 550,
Performa 550, 560
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4
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1
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 575,
Performa 575, 577, 578
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4
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1
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 580,
Performa 580, 631
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4
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2
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Inside slot:
1, 4, 16
Outside slot: 1,2,4,8,16,32
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6, 7, 9, 10, 12, 13, 21, 22, 24, 28, 36, 37, 40, 46, 52
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80
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72-pin SIMM
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52
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1
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LC 630, Quadra 630, Performa 630, 635, 636, 637, 638
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4
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1
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1,2,4,8,16
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4, 8, 20, 36
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80
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72-pin SIMM
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36
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1
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LC 630 DOS Compatible, Performa 640 DOS
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4
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2+ (1 on DOS card)
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1,2,4,8,16,32
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4, 5, 6, 8, 12, 20, 36, 52
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80
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72-pin SIMM
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52
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1
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Macintosh RAM Configurations: Macintosh Quadra & Centris Models
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Computer
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Soldered RAM (MB)
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No. of SIMM/ DIMM Slots
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Supported SIMM/ DIMM Sizes (MB)
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DRAM Configs (MB)
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RAM Speed (ns)
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RAM Type
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Max. RAM (MB)
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Install in Groups of
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Centris 610
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4
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2
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4,8,16,32
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4, 8, 12, 20, 28, 36, 40, 44, 52, 68
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80
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72-pin SIMM
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68
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1,2
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Quadra 610
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4
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2
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4,8,16,32, non-
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4, 8, 12, 20, 28, 36, 40, 44, 52, 68
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80
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72-pin SIMM
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68
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1,2
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Centris 650
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4 or 8
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4
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4,8,16,32
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4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 100, 104, 108, 116, 132
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80
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72-pin SIMM
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132
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1,2
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Quadra 650
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8
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4
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4,8,16,32
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8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 108, 112, 120, 136-169
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80
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72-pin SIMM
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169
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1,2
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Centris/Quadra 660AV
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8
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2
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4,8,16,32
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4, 8, 12, 20, 36, 68
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70
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72-pin SIMM
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68
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1,2
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Quadra 700
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4
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4
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1,4
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4, 8, 20
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80
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30-pin SIMM
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20
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4
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Quadra 900
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0
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16
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1,4
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4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 52, 64
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80
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30-pin SIMM
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64
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4
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Quadra 950
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0
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16
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1,4
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4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 52, 64
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80
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30-pin SIMM
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64
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4
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Quadra 800
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8
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4
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4,8,16,32
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8, 12, 16, 20, 24, 28, 32, 36, 40, 42, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 104, 108, 112, 120, 136
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60
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72-pin SIMM
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136
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1,2
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Quadra 840AV
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0
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4
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4,8,16,32
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4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128
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60
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72-pin SIMM
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128
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1,2
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