Description
Key Technical Specifications
- Processor: Intel Pentium III (Up to 1.26 GHz)
- Chipset: Intel 815E (133 MHz Front Side Bus)
- Memory: Up to 512 MB SDRAM (144-pin SODIMM)
- Graphics: Built-in SVGA with 4 MB DRAM cache
- Storage: IDE Drive Support
- Networking: Dual 10/100 Mbps Ethernet Ports
- Serial I/O: Two RS-232 Serial Ports
- VME Interface: P1 (Standard) and P2 (VME64) Connectors
- PCI Bridge: Transparent PCI-to-VME Bridge
- Operating Temp: -40°C to +85°C (Industrial Grade)
- Form Factor: Single-slot Eurocard, Passive Cooling
Product Introduction
VMEbus systems have been the backbone of industrial control for decades, but finding replacement CPUs for aging racks is a constant headache. The GE VMIVME-7750-744000 solves that problem. Built on the Intel 815E chipset with a 133 MHz front-side bus, this Pentium III-class SBC brings enough processing power to handle complex real-time control algorithms while maintaining full backward compatibility with legacy VME I/O cards.
Bottom line—this board keeps your VME rack alive without requiring a complete backplane overhaul. The GE VMIVME-7750-744000 features a transparent PCI-to-VME bridge, dual Ethernet ports, and two RS-232 serial ports, making it versatile enough for both system controller and peripheral CPU roles. With passive cooling and an industrial temperature range down to -40°C, it’s built to survive in harsh environments where fan failures aren’t an option.
Troubleshooting Quick Reference
- Fault: Board fails to boot / No console output
- Cause: Bad SODIMM or corrupted IDE/CF storage (75% probability)
- Relevancy: ✅ High
- Quick Check: Reseat the 144-pin SDRAM module. Swap in known-good storage media. Verify power LED status.
- Fix: Test with a different SODIMM. Re-image boot drive. If power LED is off, check backplane 5V/3.3V rails.
- Fault: VMEbus communication timeout
- Cause: VME64 connector contamination or jumper misconfiguration
- Relevancy: ⚠️ Medium
- Quick Check: Inspect P1/P2 connector pins. Verify VME address and arbitration jumpers against system map.
- Fix: Clean contacts with contact cleaner. Cross-reference jumper settings with software configuration.
- Fault: Random reboots under load
- Cause: Thermal issue or degraded backplane power
- Relevancy: ⚠️ Medium
- Quick Check: Check board temperature (passive cooling relies on chassis airflow). Measure voltage at board edge.
- Fix: Verify chassis fans are operational. If voltages sag, the backplane PSU may need replacement.
GE VMIVME-7750-744000
Application Scenarios & Pain Points
- Industrial Automation Control: Manufacturing lines running legacy VME-based PLCs need reliable CPU replacements. The VMIVME-7750-744000 handles real-time control logic while communicating with existing I/O modules through the transparent PCI-to-VME bridge.
- Defense & Aerospace Systems: Radar and signal processing platforms built on VME backplanes require long-term CPU support. This board’s extended temperature range (-40°C to +85°C) and passive cooling make it suitable for military-grade deployments.
- Power Generation Monitoring: Substation automation systems use VME racks for data acquisition. The dual Ethernet ports allow integration with modern SCADA networks while maintaining legacy field connections.
