Product Core Brief

• Model: VMIVME 7750-734000 350-027750-734000E • Brand: General Electric (GE) / VMIC • Series: VMIVME-7750 Series • Core Function: Handles high-performance real-time processing and control within VMEbus rack systems. • Product Type: VMEbus Single Board Computer (SBC) • Key Specs: Intel Pentium III Processor | VMEbus Interface | Ethernet / Serial / PMC slots • Condition: New Original (New Surplus)

 

Product Introduction

GE VMIVME 7750-734000 350-027750-734000E is a 6U VMEbus single board computer designed for high-availability industrial and defense automation applications. The module combines an embedded Intel Pentium processor architecture with standard VME system controller functionality to manage data acquisition, supervisory control, and complex signal processing.

This unit integrates dual PMC expansion capability alongside standard PC I/O like Ethernet, VGA, and serial communications. Deploying this board maintains high computational throughput while preserving compatibility across legacy VMIC rack systems.

 

Quality Control & Testing Process

1. Inbound Inspection: Verify origin against customs and shipping manifests. Inspect PCB traces for corrosion or hairline fractures, check connector pins for bent contacts, and verify serial number authenticity.
2. Live Functional Testing: Install the board into a VME test chassis. Verify power-on self-test (POST) output over VGA/serial consoles, establish Modbus/Ethernet communications handshakes, execute full RAM diagnostic sweeps, and run continuous load testing for >24 hrs.
3. Electrical Testing: Perform insulation resistance testing using a 500 V Megger to verify line resistance exceeds 10 MΩ. Test power bus grounding continuity across card cage mounting points.
4. Firmware Verification: Interrogate and log the exact BIOS and system firmware versions (e.g., V3.2.1). Back up any custom CMOS or flash settings to ensure recovery capability.
5. Final QC & Packaging: Seal the board in anti-static shielding bags, cushion with dense bubble wrap, package into a heavy-duty container, and append a QC Passed verification label.

 

Technical Pitfall & Installation Guide

• Firmware Rev Mismatch: Replacing this module with a different BIOS or firmware build can cause boot halts or OS kernel panics. Always record the existing unit BIOS version before swapping out hardware. • DIP Switch/Jumper Errors: Incorrect VMEbus address jumpering or system controller flags will freeze the backplane bus. Photograph the original jumper layout and replicate all positions on the new board. • Terminal/Wiring Incompatibility: Front panel RJ-45 serial ports may require specialized VMIC breakout cables rather than standard network patch cords. Verify pinout schematics prior to powering up peripherals. • Power Supply Constraints: High-performance x86 VME boards pull heavy current on the +5 V DC rail. Ensure your rack power supply maintains at least a 20% margin above peak total draw. • ESD Protection: Static charges can instantly destroy delicate CPU bus buffers. Wear a grounded anti-static wrist strap whenever handling or seating the module into the VME backplane.

 

Frequently Asked Questions

Q: Can I hot-swap the GE VMIVME 7750-734000 350-027750-734000E board out of an active VME chassis? A: Honestly, standard VMEbus backplanes do not support live hot-swapping unless the chassis and backplane are explicitly rated for VME64x hot-swap specifications. Pulling this module while energized can cause bus line glitches, trip adjacent controllers, or physically damage backplane pins. Always power down the card cage before removal.

Q: Is this board obsolete, and what should I verify if buying a replacement? A: Yes, this VMIC architecture is legacy OEM hardware. When sourcing a direct replacement, verify the complete part number suffix (350-027750-734000E) and the onboard RAM size. Variations in memory capacity or installed PMC daughtercards can affect system configuration.

Q: Will I lose the operating system and user software when replacing this module? A: In our experience, software resides on either an attached PMC mass-storage module, an onboard CompactFlash card, or a remote boot server via Ethernet. If your setup uses onboard flash or local disk modules, transfer those physical storage components to the replacement board before installation.

Q: Are these units brand-new factory builds or surplus stock? A: These units are New Surplus stock from OEM surplus inventories and plant spares reserves. They are genuine, uninstalled original hardware that has passed complete electrical, visual, and live VME chassis functional diagnostics to ensure proper functionality.