GE-VMIVME-7750-466000 VME Single‑Board Computer

Description

Technical background

Equipped with Intel Pentium‑III CPU, maximum onboard SODIMM memory up to 512 MB. Integrated AGP SVGA graphics controller with 4 MB display cache. Dual 10/100Mbps Ethernet ports, dual RS232 serial interfaces, USB and keyboard‑mouse interface are available on front panel. One PMC expansion slot supports additional mezzanine function cards. IDE CompactFlash interface realizes solid‑state local storage, supports local flash boot and network remote boot. Transparent PCI‑VME bridge supports acting as VME system controller or secondary CPU. Compatible with multiple operating systems: VxWorks, QNX, Linux, Windows embedded versions. Power supply comes from VME chassis backplane. Operating range: 0‑65℃ cabinet‑internal; storage‑40‑85℃; humidity 5‑95% non‑condensing; IP20 cabinet‑mount only。 Compatibility reminder: This suffix variant defines specific memory, flash and rear‑transition‑board matching configuration. Replacement shall keep consistent option code; BIOS, system image and driver version must match original unit.

Physical construction

Single‑slot 6U VME form‑factor PCB. Front panel fitted with ejector latches, multi‑status LED indicators, VGA video port, dual LAN ports, two serial COM ports, USB interface and manual reset button. Rear P1/P2 golden‑finger connectors complete power supply and VME64 bus signal exchange. Rear‑side signal extension depends on matched transition module. Part‑number VMIVME‑7750‑466000 is marked on housing label and PCB silkscreen. Whole board is conformal‑coated for industrial cabinet dust‑proof and moisture‑proof performance。

Real‑world site deployment

Widely used for hardware‑in‑loop simulation test benches, power‑plant turbine auxiliary control racks and industrial real‑time data acquisition systems. It undertakes application program operation, VME‑bus I/O data interaction, local display output and upper‑host network communication. Hardware failure will cause system boot abort, loss of VME‑bus master function, breakdown of network service and suspension of whole application task. After replacement, check golden‑finger contact condition, restore BIOS boot parameters, download matched system image, verify VME‑bus access, network port link and peripheral interface function before commissioning.

Installation & maintenance notes

Power off VME rack during swapping, adopt anti‑static measures, avoid scratching golden‑finger pins. Keep cabinet ventilation good. Long‑term high temperature will accelerate aging of memory and onboard chip components. Back‑up original system image and BIOS configuration before replacement. On‑site component‑level repair is forbidden; replace complete board for permanent hardware damage.

Typical on‑site fault phenomena

1. Board cannot boot, power‑on status LED abnormal: Check VME back‑plane power supply; re‑seat module; verify BIOS and system image integrity.
2. VME‑bus access failure: Inspect golden‑finger contamination and oxidation; confirm system‑controller mode BIOS setting.
3. Network / serial port no response: Eliminate external cable fault, judge damage of onboard communication circuit.
4. System random crash and restart: Check cabinet ambient temperature; evaluate aging risk of SODIMM memory and flash storage.