GE V7768-320000
GE V7768-320000
GE V7768-320000
GE V7768-320000
GE V7768-320000

GE V7768-320000 | 6U VME Core 2 Duo SBC – Field Service Notes

  • Model: V7768-320000
  • Alt. P/N: 350-9301007768-320000-A0,
  • Product Series: GE/Abaco VME Embedded Computing Line
  • Hardware Type: 6U dual-slot VME single board computer (SBC)
  • Key Feature: Core 2 Duo 2.16 GHz, dual GigE, VME system controller
  • Primary Field Use: Gas turbine/gen set control, real-time data acquisition in VME-based DCS
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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; system controller (slot 1) capable
  • Ports: 2×Gigabit Ethernet, 2×SATA, 4×USB 2.0, 1×RS-232, SVGA, PS/2
  • Expansion: 1×PMC site (133 MHz PCI-X)
  • Operating Temperature: 0°C to +55°C (commercial)
  • Power Draw: ~25 W (5 VDC, 4 A typical)
  • Form Factor: 6U VME, dual-slot depth (233.4×160 mm)
GE V7768-320000

GE V7768-320000

The Real-World Problem It Solves

Legacy VME CPUs lack dual-core speed and modern I/O, choking on high-speed gas turbine data loads. Old boards run hot, crash during peak processing, and can’t act as VME system controllers.

Where you’ll typically find it:

  • GE Mark VI/VIe gas turbine control cabinets (power plants)
  • Combined-cycle plant VME-based generator set controls
  • Industrial VME chassis needing a drop-in system controller + high-speed SBC

Bottom line: It’s a commercial-temp, dual-slot VME SBC that doubles as a system controller, adding dual-core performance and GigE I/O to legacy chassis.

 

Hardware Architecture & Under-the-Hood Logic

is a dual-slot VME SBC with a dedicated CPU and VME system controller logic. It can run as a standalone CPU or slot-1 arbiter in multi-CPU VME systems.

  1. Front-panel I/O (GigE, USB, SATA) routes through ICH7-M to 945GME Northbridge.
  2. Northbridge links Core 2 Duo CPU and DDR2 memory via 667 MHz FSB; handles thermal monitoring.
  3. PCI-to-VME bridge with arbiter: supports PRI/SGL/RRS arbitration, SYSCLK, IACK daisy-chain.
  4. Onboard WDT resets CPU on lockup; RTC with battery backup.
  5. PMC site taps PCI bus for add-on I/O; 3.3 V only (no 5 V support).
GE V7768-320000

GE V7768-320000

Field Service Pitfalls: What Rookies Get Wrong

Mistaking 320000 for Extended TempTdeploy in unconditioned cabinets above 55°C. Thermal throttling, WDT resets, and premature cap failure follow.

  • Field Rule: -320000 = commercial (0–55°C); use -320001 for -40–71°C sites.

Incorrect VME Arbiter ConfigurationRookies set wrong arbitration mode (PRI/SGL/RRS) or disable system controller in slot 1. Bus timeouts, master/slave conflicts, and I/O drops occur.

  • Quick Fix: Set slot 1 as system controller; match arbitration mode to chassis docs; program timeout to 16 µs.

Overlooking PMC Card Voltage KeyingTechs force 5 V PMC cards into 3.3 V-only slot. Blows PCI-X buffers, disables PMC site, and risks backplane voltage spikes.

  • Field Rule: Only use 3.3 V PMC cards; verify keying notch; no hot-swap.

 

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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