Key facts
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INFINITY nF4 Ultra-U Manual
This manual covers safety warnings, warranty terms, and handling precautions for the AF4 Ulira-U system board. It explains how to prepare the work area, avoid electrostatic discharge, and correctly install the board and its components.
Detailed sections describe the board's hardware specifications, BIOS configuration, and troubleshooting steps for common issues such as hard‑drive detection, printer and serial device setup, and component seating.
Infinity NF4 specifications
| Supported memory channels | Dual‑channel DDR2/DDR3/DDR4 |
|---|---|
| Maximum supported DIMM slots | 4 DIMM sockets |
| Rear panel USB connectors | 4 USB 2.0/1.1 ports |
Source: INFINTY nF4 SLI Manual(1)
All Infinity NF4 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Are shielded interface cables required?
Yes, shielded interface cables must be used to comply with the emission limits.
From: NF4 SLI Manual
Can the system board boot with three DIMMs installed?
No. The board will fail to boot when three DIMMs are used because the memory controller cannot correctly distinguish channels.
How many USB ports are available on the rear panel?
There are four USB 2.0/1.1 ports on the rear panel.
Can I use three DIMMs in this system board?
No. The system board will fail to boot when three DIMMs are installed.
How should I configure the BIOS for two hard drives?
Set the first (bootable) hard drive as Master and the second as Slave, and ensure the master drive has an active bootable partition.
What is the supported CPU socket?
The motherboard uses a Socket 939 for AMD Athlon 64 processors.