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This manual covers safety precautions, handling guidelines, and preparation steps required before installing the DFI X48‑T3RS system board. It explains how to avoid electrostatic discharge, proper power handling, and the contents of the package.
Detailed sections describe the board layout, supported processors and memory, chipset features, expansion slots, BIOS setup, audio and LAN specifications, as well as a comprehensive POST code troubleshooting guide for diagnosing startup issues.
| Processor socket | LGA 775 |
|---|---|
| Supported CPUs | Intel® Core™ Quad and Duo |
| Chipset | Intel® X48 Express northbridge, Intel® ICHIR southbridge |
| Memory slots | Four 240‑pin DDR3 DIMM sockets, up to 8 GB |
| Memory speed support | DDR3 800/1066/1333/1600 MHz |
| Expansion slots | 2 PCI‑Express Gen2 x16, 1 PCI‑Express x1, 1 PCI‑Express x4, 3 PCI slots |
| Audio codec | Realtek ALC885 8‑channel HD Audio |
| LAN controller | Marvell 88E8052/88E8053 Gigabit Ethernet |
Turn off and unplug the AC power, move the jumper cap from pins 1‑2 to pins 2‑3, wait five seconds, then move the jumper back to pins 1‑2.
The system stopped at code 75 while initializing storage devices, which may be caused by a lost power source or an incompatible SATA/PATA device.
Replace the motherboard battery with a new one of the same type as recommended by the manufacturer.