Dolch PAC 64

The PAC 64 is a somewhat ubiquitous luggable, built in the same chassis as other Dolch products and some lesser known brands. The PAC 64 is a baby-AT system with a Pentium CPU.Famous (among enthusiasts) for their Cherry MX-switch keyboards, Dolch portable computers, often configured as network analyzers, can be found for tremendous amounts of money when the keyboard is present, and for next to nothing when the keyboard has already been pillaged by an aforementioned enthusiast. This is to be expected; the average Socket 7 computer was chucked to the curb over a decade ago, and the only things that kept these computers from that fate was the novelty value and functionality of their form factor, and specialized applications.

Internally, although the power supply is of dimensions unique to this and related luggables, everything is pretty normal PC stuff from the baby-AT era. Notably, my PAC 64 has an AI5TV-1.03 motherboard, which provides pretty standard IO options for its time. Things like the integrated PS/2 and USB 1.1 ports, which the motherboard is equipped for, were never exposed on the chassis as they weren’t relevant to the use of the machine.

I received this unit minus the keyboard, as its owner before me had purchased it for the keyboard and had no use for the remainder of it.

Photos show my unit with a traditional heatsink/fan assembly; originally, the Dolch systems shipped with a small flat heatsink that allows for full-length cards to be installed in any slot without interfering with the HSF.

More interior photos will be follow in a teardown post later.


Specs

  • Identification: Dolch PAC 64
  • Motherboard: TMC AI5TV-1.03, baby-AT, socket 7
  • CPU: Intel Pentium, 200MHz
  • RAM: 128MB (4x 32MB) 72-pin EDO, upgraded from 64MB as received. MB alternatively supports one SDRAM DIMM.
  • Chipset: Intel 430VX
  • Video: uses a special Chips & Technologies 65548 PCI card with integrated interface for the LCD panel. This card may have been custom produced for Dolch as the part number printed on it follows their numbering convention: 21-1001-0219 Rev B.
  • Display: 12.1″ LCD, 800×600. IBM 46H3670
  • Fixed storage: 60GB Seagate IDE HDD (received unit with no drive)
  • Removable storage: 3.5″ 1.44MB floppy drive, slimline IDE CD-ROM drive
  • Sound: none integrated
  • Input: none included with mine; normally includes a keyboard which attaches to the front of the chassis forming a cover for the screen. This keyboard connects via a modular jack which is internally wired to the AT keyboard socket on the motherboard.
  • Networking: none integrated; NICs were present when new for network sniffer functionality
  • Expansion, IO: 4x PCI, 3x 16-bit ISA, 2x DE9 serial, DB25 parallel, AT keyboard internally wired to 4p4c modular jack on front of chassis.
    Not exposed in original configuration: PS/2 mouse via header, 2x USB 1.1 via header
  • Acquired: March 2018, private sale online

Original specifications as-shipped from manufacturer are not known; upgrades noted where information available.



Additional Resources

  • AI5TV motherboard manual: locate from Manuals here, or direct link
  • AI5TV BIOS update modified to support up to 128GB HDD: Wim’s BIOS

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