Description
Key Technical Specifications
- Processor: Intel Pentium M @ 1.8 GHz
- L2 Cache: 2 MB On-die
- System Memory: 1.5 GB DDR SDRAM (ECC Optional)
- System Bus: 400 MHz Front Side Bus
- Network: Dual Gigabit Ethernet (Intel 82546EB)
- Legacy Network: 10/100 BaseTX (Intel 82551ER)
- Storage: Up to 2 GB Bootable CompactFlash
- Expansion: 1x PCI-X 66 MHz PMC Site
- Serial I/O: 4x 16550 Compatible UARTs
- USB: 4x USB 2.0 Ports (2 Front, 2 Rear)
- Video: SVGA Front + DVI-I Rear (Dual Head)
- OS Support: VxWorks, QNX, Linux, Windows XP/2000
Product Introduction
Your VME chassis is aging, but your software stack is too expensive to rewrite. The GE VMIVME-7807RC is the bridge. It drops a 1.8GHz Pentium M and 1.5GB of DDR RAM into a standard 6U VME slot, replacing those ancient 100MHz PowerPCs that choke on modern encryption or complex physics models. It’s not just a CPU; it’s a platform refresh that keeps your backplane wiring and I/O cards exactly where they are.
Why spec the VMIVME-7807RC-424001? Because it includes the dual Gigabit Ethernet and the specific firmware build required for reflective memory node integration. You get sub-microsecond node-to-node latency for HIL systems without adding a separate network card. It runs hot (Pentium M era), so verify your chassis airflow is >450 LFM before you seat it. Bottom line: It buys you another decade of support for a system that should have been retired ten years ago.
Troubleshooting Quick Reference
| Fault | Cause | Relevancy | Quick Check | Fix |
|---|---|---|---|---|
| No POST | RAM seating or PSU sag | ✅ High | Reseat SODIMM; measure 5V/3.3V at test points | Clean contacts; replace PSU if <4.9V |
| GigE Link Down | Fiber/Copper mismatch | ✅ High | Check SFP/Copper module type | Verify 1000BaseT vs 1000Base-X |
| Boot Loop | Corrupt CompactFlash | ⚠️ Med | Swap CF card; check BIOS boot order | Re-image OS; replace CF if bad blocks |
| Thermal Throttle | Airflow obstruction | ✅ High | Measure exhaust temp; check fan RPM | Clean filters; verify >450 LFM flow |
| VME Bus Error | Backplane termination | ⚠️ Med | Check last slot terminator | Install 100Ω terminator on P1/P2 |
GE VMIVME-7807RC VME-7807RC-424001 350-93007807-424001 K
Application Scenarios & Pain Points
Hardware-in-the-Loop (HIL) Simulation:
Flight simulators need deterministic timing that Windows can’t guarantee. The GE VMIVME-7807RC runs QNX or VxWorks directly on the VME bus, bypassing OS jitter. The dual GigE ports handle massive telemetry streams from the vehicle model while the PMC site hosts the I/O interface card.
Legacy Power Plant Upgrades:
Turbine control systems are running on 1990s CPUs that are now unobtainable. The VMIVME-7807RC-424001 fits the same slot, uses the same VME address map, and boots the existing control logic. You avoid a 2M control system rip-and-replace by spending 5k on a CPU swap.
Radar & Sonar Signal Processing:
Raw ADC data needs to move fast. The 400 MHz FSB and DDR RAM on the GE VMIVME-7807RC prevent buffer overflows during high-bandwidth sweeps. The PMC expansion allows you to add FPGA-based pre-processing without stealing VME bus bandwidth.
