GE V7768-312000
GE V7768-312000
GE V7768-312000
GE V7768-312000
GE V7768-312000

GE V7768-312001 | 6U VME Extended Temp SBC – Field Service Notes

  • Model: V7768-312001
  • Alt. P/N: 350-9301007768-312001-A0, V7768
  • Product Series: GE/Abaco V7768 VME Embedded Computing Line
  • Hardware Type: 6U dual-slot VME single board computer (SBC)
  • Key Feature: Extended temperature (-40°C to +71°C) + Core 2 Duo + dual GigE
  • Primary Field Use: Real-time control and data processing in extreme environment VME-based DCS/SIS systems
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Part number: V7768-312001
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Description

Hard-Numbers: Technical Specifications

  • Processor: Intel Core 2 Duo L7400 @ 2.16 GHz (4 MB L2 cache)
  • Chipset: Intel 945GME Express + ICH7-M I/O controller
  • Memory: Up to 2 GB DDR2 SDRAM (one SODIMM socket)
  • Storage: Up to 8 GB bootable CompactFlash
  • Bus Interface: VME64 (VITA 1-1994), 667 MHz FSB
  • Ports: 2×Gigabit Ethernet, 2×SATA, 4×USB 2.0, 1×RS-232, SVGA, PS/2
  • Expansion: 1×PMC site (133 MHz PCI-X capable)
  • Operating Temperature: -40°C to +71°C (extended industrial range)
  • Power Draw: ~25 W (5 VDC, 4 A typical; +12 VDC <1 mA)
  • Form Factor: 6U VME, dual-slot depth (233.4 mm × 160 mm)
GE V7768-312000

GE V7768-312000

The Real-World Problem It Solves

Standard-temperature VME SBCs fail in unconditioned plant environments—cold starts below 0°C lock up, high heat above 55°C causes thermal throttling and crash events. Legacy boards lack modern I/O for today’s high-speed DCS data loads.

Where you’ll typically find it:

  • Fossil power plant Mark VI/VIe control cabinets (no HVAC)
  • Offshore platform VME-based safety instrumented systems (SIS)
  • Refinery and petrochemical plant extreme-temperature process control racks

Bottom line: It’s the extended-temperature drop-in VME CPU that runs stable from arctic cold to desert heat without chassis climate control.

 

Hardware Architecture & Under-the-Hood Logic

V7768-312001 is a dual-slot VME SBC with a dedicated thermal-optimized CPU core and isolated I/O buffers. Built for extended temp, it uses industrial-grade components screened for -40°C to +71°C operation.

  1. Front-panel I/O routes through ICH7-M to 945GME Northbridge; rear I/O via transition module (ACC-0603RC).
  2. Northbridge connects Core 2 Duo CPU and DDR2 memory via 667 MHz FSB; thermal sensors trigger passive throttling at 65°C.
  3. PCI-to-VME bridge handles backplane master/slave communication; supports VME arbitration (PRI/SGL/RRS).
  4. Onboard watchdog timer (WDT) resets CPU on lockup; RTC with battery backup maintains system time.
  5. PMC site taps PCI bus for add-on I/O; only 3.3 V PMC cards supported (no 5 V tolerance).

 

Field Service Pitfalls: What Rookies Get Wrong

Confusing Commercial vs. Extended Temp Part NumbersTechs order V7768-312000 (0°C to +55°C) for -40°C sites. Cold-start failures and intermittent bus errors occur immediately.

  • Field Rule: Verify part number suffix; -312001 = extended temp (-40°C to +71°C); -312000 = commercial temp only.

Inadequate Chassis Airflow in Hot EnvironmentsRookies install in sealed cabinets or block vents. At +60°C ambient, internal temp spikes to +85°C, triggering WDT resets and shortening cap life.

  • Quick Fix: Maintain 20 mm side clearance; use chassis fans > 40 CFM; avoid direct hot air recirculation.

Hot-Swapping PMC Cards or VME Backplane PowerTechs insert/remove PMC cards or cycle VME power while live. Voltage surges blow PCI-X buffers, corrupt backplane data, and risk SBC damage.

  • Field Rule: Power down chassis before PMC insertion/removal; never hot-swap VME modules in live control systems.
GE V7768-312000

GE V7768-312000

Commercial Availability & Pricing Note

Please note: The listed price is for reference only and is not binding. Final pricing and terms are subject to negotiation based on current market conditions and availability.

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