Everex Ram 8000 AT EV-178 ISA 8MB Memory Expansion Board 286 386 w/ Manual

Everex Ram 8000 AT EV-178 ISA 8MB Memory Expansion Board 286 386 w/ Manual

The Everex Ram 8000 AT is a full-length 16-bit ISA memory expansion board designed to add up to 8MB of RAM to IBM PC AT, 286, and 386-class systems. It supports memory configured as base memory, extended memory (XMS), or expanded memory (EMS/LIM 4.0), making it a flexible upgrade for DOS-era systems that needed more than the 640KB conventional memory ceiling. This board is new, uninstalled, and comes in its original box complete with documentation and software.

Specifications & What's Included

• Model: Everex Ram 8000 AT
• Part Number: EV-178 (secondary: AXP-13000060)
• Bus Interface: 16-bit ISA (AT bus)
• Maximum Memory: Up to 8MB
• Memory Modes: Base memory, extended memory (XMS), expanded memory (EMS/LIM 4.0)
• DRAM Socket Configuration: 4 banks of 16 sockets
• DRAM Chip Type: 1-Mbit DIP DRAM chips, 120ns or faster (chips not included — must be sourced separately)
• Main Controller: Everex ICC 08160 G (manufactured in Japan)
• Form Factor: Full-length ISA expansion card
• Included: Owner's Manual and Reference Guide (EV-178, Version 1.2)
• Included: Everex Utility Diskette (EV-178, Version 1.4, dated July 12, 1991)
• Board is new and uninstalled in original anti-static bag

Applications

The Everex Ram 8000 AT belongs to the generation of ISA memory expansion boards that emerged in the mid-to-late 1980s to address the RAM limits of IBM PC AT and compatible systems running DOS. Early AT-class machines were often shipped with 512KB or 640KB of RAM, and applications — particularly Lotus 1-2-3, AutoCAD, and early database programs — quickly outgrew that ceiling. Boards like this one allowed users to populate up to 8MB of DRAM across four banks, with software drivers configuring the additional memory as extended memory (accessed above 1MB on 286/386 CPUs) or as LIM/EMS expanded memory (bank-switched into a 64KB window for DOS applications that supported the EMS 4.0 standard). The Everex utility diskette provides the configuration and memory manager software needed to set up the board under DOS. Today this board is primarily of interest to vintage PC enthusiasts restoring 286 and 386 AT-class systems, and to collectors of late-1980s / early-1990s IBM-compatible hardware.