This is a system board user manual for Rev. A+, introducing the functions and characteristics of the system board
This manual covers the quick‑setup guide for the NFII Ultra B system board, including board layout, jumper settings, and detailed descriptions of rear‑panel I/O ports. Safety warnings, FCC compliance notes, and battery handling instructions are also provided.
Additional sections describe CMOS reload procedures, supported memory types, and connector pin‑outs. The document is multilingual, offering the same technical information in English, French, German, Spanish, and Russian.
| Supported Memory Types | DDR3, DDR2 |
|---|---|
| USB Ports | USB 2, USB 1, USB 4 |
Use the correct AC input voltage range as stated in the safety warnings.
Set the jumper to the 2‑3 position (On) to clear CMOS data.
Do not exceed 10 mA at 5 V DC for joystick or MIDI devices.