FORCE SYS68K/CPU-30BE/16-REV3 VMEbus CPU Board

SYS68K/CPU-30BE/16-REV3 — Every Hour of Downtime Costs You Money. We Ship Today.

Your VME rack is down. The line is stopped. Maintenance is standing by and every minute without a CPU board is burning through your production budget. The FORCE SYS68K/CPU-30BE/16-REV3 is in stock at our Xiamen warehouse right now — verified, tested, and ready to leave on the next DHL or FedEx cut-off. No lead time negotiation. No factory order. No waiting.

This is not a refurbished board dressed up with new labels. It is a genuine FORCE Computers SYS68K/CPU-30BE/16-REV3, pulled from decommissioned OEM systems, inspected at board level, POST-verified on a live VMEbus backplane, and packed in ESD-safe materials before it ever touches a shipping box. If you need it to run OS-9, VxWorks, or bare-metal firmware on a 16 MHz MC68030 core — it will.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

Before you pull the board: Confirm the fault is CPU-side, not a backplane power rail issue. Measure +5 V and ±12 V at the P1 connector with the board seated. A sagging +5 V rail under load will kill a healthy CPU board within minutes of reinsertion — fix the PSU first.

DIP switch configuration (critical): The SYS68K/CPU-30BE/16-REV3 uses onboard DIP switches to set VMEbus slot addressing, system controller mode, and bus arbitration priority. Before removing the failed board, photograph or document every switch position. REV 3 switch maps differ slightly from REV 1/2 — do not assume the layout is identical. The FORCE SYS68K/CPU-30 hardware manual (document number varies by revision) is the authoritative reference. If you no longer have it, contact us and we will locate the correct revision document.

Slot 1 / System Controller: If this board is installed in VMEbus Slot 1, it must be configured as System Controller (SYSCON). Inserting a non-SYSCON-configured board into Slot 1 will prevent the backplane from arbitrating correctly and the entire rack will fail to enumerate. Verify SW1 or the equivalent SYSCON jumper before power-on.

Firmware / EPROM matching: REV 3 boards shipped with updated boot EPROMs. If you are replacing a REV 1 or REV 2 board, the EPROM firmware version on the replacement may differ. In most cases this is transparent to the application, but if your system uses a custom BSP (Board Support Package) tied to a specific firmware revision, verify compatibility before committing to production. Symptoms of a firmware mismatch include: POST hangs at memory sizing, VMEbus enumeration timeout, or OS-9 failing to locate the boot device.

Common fault codes and symptoms:

• No POST output on serial console: Check P2 connector seating and verify the serial port baud rate matches your terminal (typically 9600 8N1). A completely silent board after power-on usually indicates a failed oscillator or corrupted boot EPROM — not always a dead CPU.
• VMEbus BERR* asserted continuously: The board is attempting a bus transaction that is not being acknowledged. Check that all address decoders on slave boards are correctly configured for the new CPU’s address map. REV 3 may have a slightly different default address window than your previous board.
• OS-9 kernel panic at boot: Almost always a memory sizing mismatch. Verify DRAM SIMMs are correctly seated and that the memory configuration matches what the BSP expects. The MC68030 MMU will fault immediately if the physical memory map does not match the compiled kernel parameters.
• Intermittent resets under load: Thermal issue. Ensure the board has adequate airflow in the rack. The MC68030 at 16 MHz dissipates approximately 1.5–2 W; the MC68882 FPU adds another 0.5–1 W. A blocked card cage fan is the most common cause of thermal resets on this platform.

Replacement procedure (condensed field steps):

1. Power down the VME rack completely. Do not hot-swap VMEbus CPU boards.
2. Ground yourself with an ESD wrist strap before handling the board.
3. Document all DIP switch and jumper positions on the failed board before extraction.
4. Extract the failed board using the front-panel ejector levers — do not lever against the backplane.
5. Configure the replacement SYS68K/CPU-30BE/16-REV3 to match the documented switch positions.
6. Seat the replacement board firmly into the slot, ensuring both P1 and P2 connectors are fully engaged.
7. Power on and monitor the serial console for POST output within 5 seconds of power-on.
8. Confirm VMEbus enumeration completes before loading the OS or application firmware.

Reliability in Harsh Conditions

The SYS68K platform was not designed for office environments. FORCE Computers engineered this board family for deployment in steel mill control rooms, offshore platform automation racks, and defense electronics bays — places where vibration, thermal cycling, and humidity are daily realities, not edge cases.

The MC68030 processor at the core of this board operates across a junction temperature range that tolerates sustained industrial ambient conditions up to +55°C without derating. The PCB uses a multi-layer stackup with internal ground planes that provide both EMI shielding and mechanical rigidity — the board does not flex under the clamping force of a VMEbus card cage, which is a common failure mode on cheaper single-layer designs.

Connector integrity is a primary concern on any board that has been in service. Every SYS68K/CPU-30BE/16-REV3 we ship undergoes physical inspection of the P1 and P2 DIN 41612 connectors under magnification. Bent pins, oxidized contacts, and cracked housings are disqualifying defects — boards with any connector damage are not offered for sale. The gold-plated contact fingers on the VMEbus edge connector are inspected for wear depth; boards showing contact erosion beyond acceptable limits are rejected.

Vibration resistance on the SYS68K series comes from the mechanical design of the 6U card format combined with the front-panel mounting system. When correctly installed with the front-panel screws torqued to specification and the card cage retainer engaged, the board assembly resonant frequency is well above the typical 5–50 Hz sweep range specified in IEC 60068-2-6 for industrial equipment. We have seen these boards run continuously for over a decade in paper mill and chemical plant environments without mechanical failure.

Humidity and condensation are managed through the conformal coating applied to production boards. While we cannot guarantee the coating condition on every surplus unit, boards showing evidence of corrosion, flux residue, or moisture damage are excluded from our inventory. If your application involves high-humidity environments, request a pre-shipment inspection report and we will document the coating condition of your specific unit.

Global Express Logistics

Our warehouse is located in Xiamen, Fujian Province, China — one of the most logistics-connected export hubs in Asia. DHL Express and FedEx International Priority both operate direct flights from Xiamen Gaoqi International Airport to major hubs in Europe, North America, Southeast Asia, and the Middle East. This means your board does not sit in a consolidation center waiting for a connecting flight.

Standard dispatch process:

1. Order confirmed and payment cleared before 14:00 CST → same-day dispatch on DHL or FedEx.
2. Board packed in anti-static bag, foam-lined inner box, and double-walled outer carton rated for air freight handling.
3. Commercial invoice and packing list prepared with accurate HS code (8537.10) for customs clearance.
4. Tracking number sent to your email within 2 hours of carrier pickup.
5. Typical transit times: Europe 2–4 business days, North America 3–5 business days, Southeast Asia 1–3 business days, Middle East 3–5 business days.
6. Customs brokerage support available on request for destinations with complex import requirements.

We have shipped VMEbus boards to automotive plants in Germany, petrochemical facilities in Saudi Arabia, semiconductor fabs in Taiwan, and power stations in South Africa. The packaging specification we use has a zero damage-in-transit record across all shipments to date. If your shipment arrives damaged, we handle the carrier claim and ship a replacement — you do not carry that risk.

For orders requiring export documentation (EUC, end-user certificate, or specific country import permits), contact us before placing the order. We will advise on documentation requirements and realistic customs clearance timelines for your destination.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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