Power Mac 7100

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The 66 MHz 7100 was the middle of the Power Mac line when Apple introduced its first PowerPC models in March 1994. Built into the Quadra 650 case, the 7100 has three NuBus slots and a PDS (processor direct slot).

Power Macintosh 7100The 7100 uses system memory for motherboard video (up to 615 KB, depending on resolution and bit-depth) and also includes a separate PDS video card with its own memory, making it very easy to work with two monitors. For best performance, use the video card instead motherboard video with a single monitor.

The 7100 was upgraded to 80 MHz in January 1995.

See our NuBus Video Card Guide for information on adding a video card.

Note that these so-called NuBus processor upgrades do not go into a NuBus slot; they derive their name from the fact that they work in NuBus Power Macs. The processor upgrades fit into the PDS, which is normally occupied by a video card on the 7100. These cards may also include a pass through connector (which may be an extra cost option), allowing you to plug the PDS video card into the upgrade card.

The floppy drive mounting sled used in the IIvi, IIvx, Centris 650, Quadra 650, and Power Mac 7100 can also be used for a hard drive if you no longer need the floppy drive.

Variants

7100av. Includes video-in and video-out. Supports 19″ and 21″ monitors. Has 2 MB VRAM. (AV card can be added to any 7100 with a free PDS slot.)

Details

  • 7100/66 introduced 1994.03.14; discontinued 1995.01.03
    7100/66av introduced 1994.03.14; discontinued 1995.01.03
    7100/80 introduced 1995.01.03; discontinued 1996.01.06
    7100/80av introduced 1995.01.03; discontinued 1995.08.05
  • requires System 7.1.2 through 9.1 (66 MHz), 7.5 through 9.1 (80 MHz)
  • CPU: 66 or 80 MHz PPC 601
  • Bus: 33 or 40 MHz
  • Performance: 2.2 (66 MHz, relative to Centris 650); 25.87 (66 MHz), MacBench 2.0
  • 24,938 (66 MHz), 30,912 (80 MHz) Whetstones
  • ROM: 4 MB
  • RAM: 8 MB on motherboard, expandable to 136 MB using two pairs of 80ns 72-pin SIMMs (4 sockets total). Supports 4, 8, 16, and 32 MB SIMMs. Will not recognize more than 32 MB per SIMM even if you install 64 MB SIMMs.
  • VRAM: none on motherboard, 1 MB on PDS video card (expandable to 2 MB), 2 MB on AV card (not expandable)
  • Video:
    • internal supports thousands of colors at 640 x 480 and 256 colors at 832 x 642
    • PDS card supports thousands of colors at 640 x 480 and 832 x 624, 256 of colors at 1024 x 768 and 1152 x 870
    • AV card supports millions of colors at 640 x 480 and 832 x 624, thousands of colors at 1024 x 768 and 1152 x 870
  • L2 cache: optional on 7100/66, 256 KB standard on 7100/80, supports 256 KB to 1 MB cache
  • Hard drive: 250-500 MB @ 66 MHz, 350-700 MB @ 80 MHz
  • CD-ROM: 2x standard
  • Microphone: standard 3.5mm minijack, compatible with line-level input including Apple’s PlainTalk microphone
  • ADB: 1 port for keyboard and mouse
  • serial: 2 DIN-8 GeoPorts on back of computer
  • SCSI: DB-25 connector on back of computer
  • Ethernet: AAUI connector on back of computer, requires AAUI adapter
  • NuBus slots: 3
  • Power supply: 230W
  • PRAM battery: 3.6V half-AA
  • Height: 6.0 in
  • Width: 13.0 in
  • Depth: 16.5 in
  • Weight: 25.0 lb
  • PRAM battery: 3.6V half-AA
  • Gestalt ID: 112 (66 MHz), 47 (80 MHz)

Accelerators & Upgrades

Online Resources

Caution

  • You cannot upgrade from Mac OS 9.0 to 9.1 using updaters on NuBus models. You must use a full installation CD for OS 9.1.
  • Beware bogus 256K cache module AP2544-02 – it doesn’t do anything on the 6100 or 7100.
  • Never run a 7100, 8100, 8150, or 9150 without a PDS video card or a PDS terminator. This can damage the motherboard. If the video card goes bad, you can replace it with another video card or use motherboard video after installing a PDS accelerator or “Apple Terminator, PDS, WGS 81XX.” Workgroup Server 8150 and 9150: PDS Needs Terminator, feedback from Mac Managers list, and personal experience.

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