ASRock 990FX Extreme3 Motherboard is an ATX-sized motherboard with full solid capacitor design. It supports AMD Socket AM3 and AM3+ processors, and features a 4+1 power phase design, supporting up to 140W CPUs. It also supports DDR3 2100(OC)/1866/1600/1333/1066/800 non-ECC, un-buffered memory, and has a maximum capacity of 32GB.
This manual covers the ASRock 990FX Extreme3 ATX motherboard, describing its physical dimensions, supported CPUs, memory configurations, expansion slots, and onboard interfaces. It also includes step‑by‑step installation instructions, BIOS setup guidance, and troubleshooting tips such as CMOS clearing.
Additional sections explain the rear panel connectors, USB and SATA ports, Gigabit LAN controller, and the included software utilities for over‑clocking and system monitoring. This manual is written in Chinese.
| Form factor | ATX 12.0" x 8.6" (30.5 cm x 21.8 cm) |
|---|---|
| CPU socket | Socket AM3+ (supports AM3+ and AM3 CPUs) |
| Supported CPUs | AMD Phenom II X6/X4/X3/X2, Athlon II, Sempron |
| Memory slots | 4 DDR3 DIMM slots |
| Memory speed support | DDR3 2100/1866/1600/1333/1066/800 (non‑ECC, un‑buffered) |
| Maximum memory | 32 GB |
| PCI Express slots | 3 × PCIe 2.0 × 16, 1 × PCIe 2.0 × 1, 2 × PCI |
| SATA ports | 5 × SATA3 6.0 Gb/s (RAID 0/1/5/10, NCQ, AHCI) |
| USB ports | 6 × USB 2.0, 2 × USB 3.0 |
| LAN controller | Broadcom BCM57781 Gigabit Ethernet |
| BIOS | 32 Mb AMI UEFI Legacy BIOS with GUI |
It can accommodate up to 32 GB of DDR3 memory across its four DIMM slots.
There are five SATA3 6.0 Gb/s ports that support RAID 0/1/5/10, NCQ, and AHCI.