Condition
Sourced from an ION Geophysical lab liquidation. Excellent cosmetic condition with no visible capacitor leakage or trace damage. Includes Intel Pentium OverDrive CPU (with fan), 4MB OEM RAM, and Dallas RTC. Untested due to proprietary power connector requirements; sold as-is for parts, repair, or professional restoration.
Description
Provenence & Professional Pedigree
This motherboard was acquired from the assets of ION Geophysical (formerly Input/Output) during a liquidation of professional engineering and data acquisition equipment. It was utilized in a high-precision technical lab environment alongside specialized instrumentation from brands like Keithley.
Technical Highlights for Collectors
• Graphics: Integrated Tseng Labs ET4000/W32i. Highly sought after for peak DOS gaming performance and early Windows acceleration.
• Processor: Includes an Intel Pentium OverDrive (with Sanyo Denki fan), providing a significant period-correct upgrade over a standard 486.
• Chipset: VLSI VL82C483FCJ logic for stable, classic architecture.
• Build Quality: "Made in U.S.A." 1994 Compaq OEM construction.
Identified Components
• CPU: Intel Pentium OverDrive (Integrated Heatsink/Fan)
• Memory: 4MB 30-pin SIMM (Compaq OEM) | Micron/TI 70ns Chips
• I/O Controller: SMC FDC37C665QF
• RTC: Dallas DS1287 (Note: Due to age, the internal battery may require a "cr123 mod" or Year: 1994
• Bus Support: ISA + VESA Local Bus (VLB)
• Form Factor: Proprietary Compaq (typical of Prolinea or Deskpro series)
Ships within 1 business day of purchase.
Bundle & Save on Shipping
This component was pulled from a high-end, rack-mounted ION Geophysical data acquisition system. I have several other period-correct components from this exact rig currently listed, including:
• The original Conner 340MB IDE Hard Drive (with ribbon cable)
• Specialized ISA/VESA Interface cards
If you are interested in multiple components for a complete retro-build, please contact me before purchasing. I am happy to combine shipping to save you money.
