ASROCK A75M User Manual

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3.4.7 USB Configuration
USB 2.0 Controller
Use this item to enable or disable the use of USB 2.0 controller.
USB 3.0 Controller
Use this item to enable or disable the use of USB 3.0 controller.
Legacy USB Support
Use this option to select legacy support for USB devices. There are four
confi guration options: [Enabled], [Auto], [Disabled] and [UEFI Setup Only].
The default value is [Enabled]. Please refer to below descriptions for the
details of these four options:
[Enabled] - Enables support for legacy USB.
[Auto] - Enables legacy support if USB devices are connected.
[Disabled] - USB devices are not allowed to use under legacy OS and
UEFI setup when [Disabled] is selected. If you have USB compatibility is-
sue, it is recommended to select [Disabled] to enter OS.
[UEFI Setup Only] - USB devices are allowed to use only under UEFI
setup and Windows / Linux OS.
Legacy USB 3.0 Support
Use this option to enable or disable legacy support for USB 3.0 devices.
The default value is [Enabled].

ASROCK A75M Specifications

General

Non-ECC	Yes
Memory channels	Dual-channel
Number of memory slots	2
Maximum internal memory	16 GB
Supported memory clock speeds	800, 1066, 1333, 1600, 1866, 2400 MHz
Supported memory module capacities	1GB, 2GB, 4GB, 8GB
Processor socket	Socket FM1
Processor manufacturer	AMD
Maximum number of SMP processors	1
USB 2.0 connectors	3
Number of SATA III connectors	5
Number of Parallel ATA connectors	0
HDMI version	1.4a
Headphone outputs	4
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Certification	FCC, CE, WHQL, ErP, EuP
Component for	PC
Power source type	ATX
Motherboard chipset	AMD A75
Audio output channels	7.1 channels
Motherboard form factor	micro ATX
Compatible operating systems	Windows 7/Vista/XP
PCI Express slots version	2.0
Maximum graphics card memory	512 MB
RAID levels	0, 1, 10
LAN controller	Realtek RTL8111E
Ethernet interface type	Gigabit Ethernet
BIOS type	AMI
ACPI version	1.1
BIOS memory size	32 Mbit

Weight and Dimensions

Depth	216 mm
Width	244 mm