Power Macintosh 7300
 | |
| Power Macintosh 7300/180 with its security bar fitted. Photo: Tokumeigakarinoaoshima, Wikimedia Commons, CC0 | |
| Specifications | |
|---|---|
| Manufacturer | Apple Computer, Inc. |
| Type | Desktop personal computer |
| Released | 13 February 1997 (7300/166); 17 February 1997 (7300/180, 7300/200); 4 April 1997 (7300/180 PC Compatible) |
| Discontinued | November 1997 |
| CPU | PowerPC 604e at 166, 180 or 200 MHz on a processor card; 48, 45 or 50 MHz bus |
| Memory | 16 or 32 MB; eight 168-pin EDO DIMM slots, interleaved in pairs; 512 MB (Apple) |
| Storage | 2 GB SCSI hard drive |
| Display | — |
| Sound | 16-bit stereo input and output |
| Graphics | 2 MB VRAM on two DIMMs, expandable to 4 MB; DB-15 port |
| ROM | 4 MB |
| Media | 1.4 MB SuperDrive; 12× CD-ROM |
| Ports / interface | ADB, two GeoPort serial, SCSI (DB-25), AAUI and 10BASE-T Ethernet, DB-15 video, sound in and out |
| Expansion | Three PCI slots; L2 cache DIMM slot (256 KB fitted); processor card slot |
| Power | 115/230 V switch; 150 W maximum |
| Dimensions | 15.6 × 36.5 × 43.0 cm (6.15 × 14.37 × 16.93 in) |
| Weight | 22 lb (9.97 kg) |
| OS / Firmware | System 7.5.5 (7.6.1 for the PC Compatible); supported to Mac OS 9 |
| Predecessor | Power Macintosh 7600 |
The Power Macintosh 7300 is a desktop Macintosh with a PowerPC 604e processor card, built in the case of the 7500 and 7600. Apple introduced the 7300/166, sold in Europe and Japan, on 13 February 1997, and the 7300/180 and 7300/200 on 17 February 1997.[1][2][3][4] It replaced the 7600 but dropped its video input, and Wikipedia records that the beige Power Macintosh G3 desktop replaced it in November 1997.[5] The server version is the Apple Workgroup Server 7350.[4]
Models
[edit | edit source]| Model | Introduced | Processor / bus | RAM | Notes |
|---|---|---|---|---|
| 7300/166 | 13 February 1997 | 604e, 166 / 48 MHz | 16 MB | Europe and Japan |
| 7300/180 | 17 February 1997 | 604e, 180 / 45 MHz | 16 MB | |
| 7300/200 | 17 February 1997 | 604e, 200 / 50 MHz | 32 MB | |
| 7300/180 PC Compatible | 4 April 1997 | 604e, 180 / 45 MHz | 32 MB | 166 MHz Pentium card with 16 MB, 256 KB cache and 2 MB video memory; Windows 95 |
All models have a 256 KB cache DIMM, a 2 GB hard drive and a 12× CD-ROM drive.[4][6] Apple's developer note says the 7300/166 actually runs at 168 MHz on a 48 MHz bus; Apple's specification page gives a 50 MHz bus.[6][1] The Service Source names the CD-ROM drive as the AppleCD 1800i and the developer note as the AppleCD 1600i (SS p. 51).[4][6] The PC Compatible model's details are from the Service Source (pp. 4–5, 12) and its date from Apple's specification page.[4][7]
Differences from the 7500 and 7600
[edit | edit source]- There is no AV module, so no video or RCA audio input (SS p. 25).[4]
- Memory is 60 ns EDO DIMMs, which the memory controller treats as fast-page DIMMs (SS pp. 20, 43).[4]
- A security bar, held by one screw, covers the latches of the top housing; remove it before opening the case (SS pp. 164–165).[4]
- Owners report that the 7300 logic board, 820-0858-B, has a 24-pin upright power connector where the 7500 and 7600 boards have a 22-pin right-angle connector, so a 7500 or 7200 supply will not plug into it.[8] Low End Mac also says a 7300 logic board needs the 7300 power supply.[9] Apple's Service Source shows one supply part number, 661-0920, marked "refer to parts list", for the whole family (SS p. 170).[4]
The case, drives, memory slots, processor card slot and procedures are otherwise those of the 7500.[4]
Known faults
[edit | edit source]- Processor cards of 180 MHz and faster cause errors when floppy disks are initialised, or leave a 1.4 MB disk showing only 1 MB free. Apple's cure is system software 7.5.4 or later, or the Power Mac Format Patch on the original system disks (SS p. 83).[4]
- Some 2, 3, 4 and 6 GB hard drives fail to wake from sleep; Apple's 2/3/4/6 GB Firmware Utility 1.0 updates them (SS pp. 58–59).[4]
- An owner who fitted capacitors to empty pads while recapping a 7300 logic board, then removed them, was left with a machine that ran its fan and LED but gave no chime and no picture.[10] Replace only the capacitors that are fitted.
The clock battery is a 3.6 V lithium cell.[1] See Battery Explosion, Capacitor or Corrosion Damage and Power Macintosh 7500 Troubleshooting.
Maintenance and repair
[edit | edit source]- Power Macintosh 7500 General Maintenance
- Power Macintosh 7500 Troubleshooting
- Power Macintosh 7500 Capacitor Replacement Guide: no list has been published for the 7300's own board
Documentation
[edit | edit source]- Power Macintosh 7300/ 7500/7600 & WS 7350 Service Source
- Power Macintosh 7300, 7600, 8600 and 9600 Computers Developer Note
- Power Macintosh 7300 User's Manual: the owner's manual, which includes installing PCI cards and memory.
Related pages
[edit | edit source]- Power Macintosh 7600
- Power Macintosh 7500
- Apple Workgroup Server 7350
- Power Macintosh 8600
- Power Macintosh 9600
References
[edit | edit source]- ↑ 1.0 1.1 1.2 Apple, "Power Macintosh 7300/166: Technical Specifications". 604e at 166 MHz; data path 64-bit, 50 MHz; L2 256K; 3 PCI; 150 W maximum; battery type 3.6V lithium; introduced 2/13/1997; Gestalt ID 109; eight 168-pin DIMM slots, 16–512 MB; original system software 7.5.5; 12× CD; 2 GB.
- ↑ Apple, "Power Macintosh 7300/180: Technical Specifications". 604e at 180 MHz; data path 64-bit, 45 MHz; introduced 2/17/1997.
- ↑ Apple, "Power Macintosh 7300/200: Technical Specifications". 604e at 200 MHz; data path 64-bit, 50 MHz; introduced 2/17/1997; 32–512 MB.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 Apple Computer, Service Source: Power Macintosh 7300/7500/7600 & WS 7350 (1997), File:Pm7300.7500.7600.ws7350.pdf; see Power Macintosh 7300/ 7500/7600 & WS 7350 Service Source. Page numbers are PDF pages.
- ↑ Wikipedia, "Power Macintosh 7300". Sold February to November 1997; replaced the 7600; no video input; replaced by the Power Macintosh G3 desktop in November 1997; the Workgroup Server 7350 was sold until March 1998.
- ↑ 6.0 6.1 6.2 Apple Computer, Developer Note: Power Macintosh 7300, 7600, 8600, and 9600 Computers (1996): 7300/166, 180 and 200 replace the 7500/100 (Table 1-1, p. 2); processor and bus speeds, with the note that the 7300/166's processor actually runs at 168 MHz (Table 1-2, p. 4); 12× AppleCD 1600i (p. 5); security bar (p. 6); configurations (Table 1-4, p. 7). Hosted as File:Power Macintosh 7300, 7600, 8600 and 9600 Computers Developer Note (1996).pdf; see Power Macintosh 7300, 7600, 8600 and 9600 Computers Developer Note.
- ↑ Apple, "Power Macintosh 7300/180 PC Compatible: Technical Specifications". Introduced 4/4/1997; original system software 7.6.1; 32–512 MB.
- ↑ 68k Macintosh Liberation Army forum, "7500 Power Supply Woes" (2021): a 7200 supply's 22-pin plug did not fit a board with a 24-pin connector, identified as a 7300 board, 820-0858-B; photographs of a 7300/166 board (24-pin, upright) and a 7600 board (22-pin, right-angle).
- ↑ Low End Mac, "Power Mac 7200": "7300 motherboard requires 7300 power supply".
- ↑ 68k Macintosh Liberation Army forum, "Power Mac 7300 issues post tantalum" (2020, reply 2025): no chime or video after a logic board recap that briefly added two capacitors to unpopulated pads; no fix posted.