Power Mac 6500

The Power Mac 6500 replaced the slower 6400 and uses the same tower configuration. It was available in 225 MHz to 300 MHz configurations.

Performa 6300The logic board of the 6500 is based on the “Gazelle” architecture, which is shared by the 20th Anniversary Mac and Power Mac 5500, the latter being essentially the same computer with a built-in display.


  • code name: Gazelle
  • introduced 1997.02.17, discontinued 1998.03.14
  • requires System 7.5.3 through 9.1
  • CPU: 225, 250, 275, or 300 MHz PPC 603e or 603ev
  • Bus: 50 MHz
  • CPU performance: 2.3 (250 MHz, relative to 7500/80)
  • 101,351 (250 MHz) Whetstones
  • RAM: 32 MB, expandable to 128 MB using two 60ns EDO DIMMs
  • video: ATI 3D Rage II chip set
  • VRAM: 2 MB SGRAM, supports millions of colors up to 832 x 624, thousands up to 1152 x 870
  • L2 cache: 256 KB on 250 MHz, 512 KB on 275 MHz
  • Hard drive: 4GB IDE
  • CD-ROM: 12x
  • Built-in Zip drive
  • Microphone: standard 3.5mm minijack, compatible with line-level input including Apple’s PlainTalk microphone
  • ADB ports: 1
  • DIN-8 GeoPorts: 2 (one may be covered)
  • SCSI: DB-25 connector on back of computer
  • Comm Slot II, may be occupied by 28.8 kbps modem (may be a GeoPort modem or a real modem)
  • video input slot (accepts TV/FM card)
  • video out port
  • PCI-based comm slot
  • two PCI slots: top slot may accept a 12″ card, but bottom slot will only handle a 7″ card

Accelerators & Upgrades

Online Resources


  • Internal modem may have problems under Mac OS 8.5, will have problems with OS 8.6 and later, as Apple Telecom is no longer supported. Best solution: replace the internal modem. (Mac OS 8.5: Is Apple Telecom Supported?)
  • Macs with IDE hard drive do not provide SCSI termination power, depending on external SCSI devices to provide it. For more details, see SCSI Termination Power.

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