Vector 4/8086 Variant Late 1984 Computer
Vector Graphic SX/5000 [XH] Executive - Revision 2.00 (AC)

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System Overview

Vector 4/8086 with boot screen:

Vector Graphic SX/5000 [XH]

EXECUTIVE – REVISION 2.00 (AC)

Hardware Configuration

• Mainboard: PCBA 3700-0038 Rev 19 1984, Intel 8086 & Z80B CPUs, Jumpers and Connectors
• ROM: 6200-0102 CG LT, 6200-0103 CG RT, 6200-9222 V2(AC)XHE, 6200-9223 V2(AC)XHO
• RAM: 768 KB total (2×128 KB + 2×256 KB cards)
• Multibus interface: PCBA 3576-0010 Rev 05 1984 (MX INT port on the back)
• Storage controller: PCBA 3700-0033 Rev 08 1984 (WD1010AL-00, WD1014CL-00, WD1015-PL)
• Hard drive: ATASI model 3046 unformatted capacity 46.3 MB
• Floppy drive: Single 5.25 Disk
• CRT: Chuomusen model QB1280
• Power supply: California DC Model LR1009 with CORCOM 3VSK7 EMI filter
• Documents: Manuals and other information.

Vector 4 Series

The Vector 4 series (1982–1984) was Vector Graphic’s flagship dual-processor microcomputer line. It combined a Zilog Z80B 8-bit CPU with an Intel 8088 (or 8086 16-bit CPU in this model), allowing seamless execution of both 8-bit CP/M and 16-bit CP/M-86 / MS-DOS software. Models ranged from the entry-level 4/10 (floppy only) to the high-end 4/60 (36 MB Winchester). A soft-sectored “4-S” variant was also offered. The Vector 4/8086 (Vector Graphic SX/5000) is a rare, undocumented high-end late Vector 4 model with the more powerful 8086 CPU and 768 KB of RAM.

History

Carole Ely (left) and Lore Harp.
Source: Vector Graphic.

Vector Graphic Inc. was founded in 1976 in Thousand Oaks, California by Lore Harp and Carole Ely. Specialized in S-100 bus microcomputers and dual-CPU Vector 4 systems before closing in the mid-1980s.

If anyone has additional information, manuals, schematics, or software for this Vector 4/8086 CPU variant (Vector Graphic SX/5000), please contact me.

Document generated: April 9, 2026
Updated: April 11, 2026

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