ASRock B75 Pro3 User Manual, introduces the features and usage of the product.
This manual introduces the ASRock B75 Pro3 ATX motherboard, detailing its features, supported CPUs, memory, and expansion options. It includes safety notices, warranty disclaimer, and FCC compliance information.
The document guides users through hardware installation, UEFI BIOS setup, driver and utility installation from the Support CD, and operating‑system installation, including special steps for HDDs larger than 2 TB. It also lists the motherboard’s connectors, ports, and unique ASRock utilities.
| Form Factor | ATX (12.0" x 7.6") |
|---|---|
| CPU Support | 2nd & 3rd Gen Intel Core i7/i5/i3 (LGA1155) |
| Memory Slots | 4 DDR3 DIMM slots |
| Maximum Memory Capacity | 32 GB |
| PCI Express Slots | 1 × PCIe 3.0 x16, 1 × PCIe 2.0 x16 (x4), 1 × PCIe 2.0 x1, 2 × PCI |
| SATA3 Connectors | 3 × 6 Gb/s (1 Intel, 2 ASMedia) |
| USB Ports | 4 × USB 2.0 (rear), 2 × USB 3.0 (rear) + 1 × USB 3.0 header (front) |
| LAN Controller | Realtek RTL8111E Gigabit Ethernet |
| Audio Codec | Realtek ALC892 7.1‑channel HD Audio |
Use the UEFI BIOS, set the SATA mode to AHCI, select a UEFI boot option for the installation media, and then run the Windows installer.
Drivers are available on the Support CD that came with the motherboard or can be downloaded from the ASRock website.
The board supports 2nd and 3rd generation Intel Core i7, i5, and i3 processors in the LGA1155 package.