Type |
Total |
Slot |
Size |
Details |
Brand |
S/N |
ROM |
? |
Slot 1 |
Installed |
? |
? |
? |
RAM1,2,3,4,5,6,7 |
128MB |
Bank A |
Slot 1 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 2 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 3 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 4 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Bank B |
Slot 1 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 2 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 3 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
Slot 4 |
16MB |
EDO DRAM 5V 70ns DIMM 168-pin |
? |
? |
VRAM8,9 |
? |
Slot 1 |
? |
VRAM DIMM |
? |
? |
Slot 2 |
? |
VRAM DIMM |
? |
? |
Slot 3 |
? |
VRAM DIMM |
? |
? |
Slot 4 |
? |
VRAM DIMM |
? |
? |
L2 Cache |
256KB |
Slot 1 |
? |
? |
? |
? |
1All the computer systems covered in this manual have eight DRAM DIMM slots on the logic board, each with a 64-bit data bus. You can increase the computers’ DRAM to a total of 512 MB using 5-volt, 64-bit-wide, 168-pin fast-paged mode, 70 ns DIMMs. (You can also use EDO DIMMs in the PM 7300 Series, 7600/200, and WS 7350/180. See the note on the previous page for more information.)
2Officially, this model supports a maximum of 512 MB of RAM. However, third-parties have discovered that it actually can support 1024 MB (1.0 GB) of RAM with eight 128 MB memory modules.
3These computers use +5 V DIMMs only. Single In-Line Memory Modules (SIMMs) used in previous Macintosh models are NOT compatible with these computers.
4While the Power Macintosh 7300 Series, the Power Macintosh 7600/200, and the Workgroup Server 7350/180 ship with EDO DIMMs, the computers’ memory controller treats EDO DIMMs like fast-paged DIMMs. You can therefore use either EDO or fast-paged DIMMs in these computers.
5These computers do not have any main memory soldered to the logic board. At least one RAM DIMM must be present for the computers to operate.
6DRAM DIMMs can be installed individually; however, to take advantage of the computer’s interleaving capability, which provides maximum performance, you must install the DIMMs in matching pairs and in paired slots. Memory interleaving allows the computer to read or write to its memory while other memory reads or writes are occurring, thus providing for faster performance. For a pair of DIMMs to function as a single 128-bit wide pair, they must be the same type and size.
7DIMMs purchased from different manufacturers can be paired as long as they are the same size and speed.
8These computers also use VRAM DIMMs (112-pin 70 ns or faster) instead of VRAM SIMMs. The VRAM SIMMs used in earlier Power Macintosh models are not compatible.
9Video Support
Monitor Display Size |
Pixel depths |
2 MB VRAM |
4 MB VRAM |
512 x 384 | 8,16,32 | 8,16,32 |
640 x 480 | 8,16,32 | 8,16,32 |
768 x 576 | 8,16,32 | 8,16,32 |
800 x 600 | 8,16,32 | 8,16,32 |
832 x 624 | 8,16,32 | 8,16,32 |
1024 x 768 | 8,16 | 8,16,32 |
1280 x 960 | 8 | 8,16 |
1280 x 1024 | 8 | 8,16 |
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