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booger - Compaq Deskpro XL 590

11 July, 2025

Model 1, S/N 0604926

Mainboard:

  • Intel Socket 4 ZIF
  • 60 MHz Intel P5 Pentium CPU
  • 256 kB IDT Low-power CMOS SRAM L2 cache; 15ns write back
  • 4 72-pin SIMM slots in 2 banks of 2 slots each, 128 MB maximum:
  • 6 ISA slots, 3 with VESA Local Bus
  • Internal Floppy Disk Drive connector (34-pin header)
  • Dual internal IDE connector (2x 40-pin header)
  • Opti Premium "Cobra" Chipset – 82C596
  • Phoenix BIOS

Built-in ports:

  • AT Keyboard (5-pin DIN)
  • PS/2 Mouse (6-pin miniDIN)
  • Serial A (DE9M)
  • Serial B (DE9M)
  • Centronics Parallel (DB25F)

Internal drive bays:

  • Floppy disk drive:
    • Teac model FD-235HG
    • 300 RPM 135 TPI 3.5" LP, 1440 kB
  • SCSI fixed disk drive:
    • Seagate Barracuda 4LP, model ST34371N
    • 4.35 GB, 3.5" LP, 7200 RPM
    • Single-ended Fast-20 SCSI, 50-pin

ATI Mach32 VLB display adapter

  • Super VGA (DE15F)
  • up to 1280×1024 @ 60 Hz
  • up to 24 plane color
  • ATI 6880006 processor
  • 135 MHz x RAMDAC
  • 2 MB DRAM (16 ea. )

3Com 3C509-TPO Etherlink III ISA

  • 10base-T Ethernet (RJ45)
  • 3Com 40-0336-003 Parallel Tasking Ethernet Controller

Buslogic BT445-S VLB

  • Single-ended Fast SCSI (HD50 external, 50-pin header internal)
  • QLogic FAS216 Single-ended Fast SCSI controller
  • 16 MHz i80188 processor

MediaVision ProAudioSpectrum 16

Strobe Data Hawk-EF

  • Data General Nova-4X / Eclipse S/140 Compatible CPU
  • Hardware Accelerated Floating Point Instructions
  • 300ns microprogram cycle time
  • 4 30-pin SIMM slots in 2 banks of 2 slots each, 4 MB maximum:
    • 4 MB RAM in 4 ea. 1Mx9 60ns SIMMs

Autoranging PSU

  • 100-120, 220-240VAC
  • 50-60 Hz
  • 244W max

Software installed

  • MS-DOS 6.22 + Windows for Workgroups 3.11
  • DG-RDOS 3.00 (emulated DG 6067)
  • AOS 5.02 (emulated DG 6067)
  • AOS 6.00 (emulated DG 6067)
  • AOS 7.02 (emulated DG 6067)
  • Novell UNIXware 2.0 Application Server

Typewritten Software • bear@typewritten.org • Edmonds, WA 98026