Asus SABERTOOTH X58 User Manual

2-24 Chapter 2: Hardware information
Chapter 2
2.7 Onboard switch
The onboard switch allows you to ne-tune performance when working on a bare or open-case
system. This is ideal for overclockers and gamers who continually change settings to enhance
system performance.
MemOK! switch
Installing DIMMs that are incompatible with the motherboard may cause system boot failure,
and the DRAM_LED near the MemOK! switch lights continuously. Press and hold the
MemOK! switch until the DRAM_LED starts blinking to begin automatic memory compatibility
tuning for successful boot.
• Refer to section
2.9 Onboard LEDs
for the exact location of the DRAM_LED.
• The DRAM_LED also lights when the DIMM is not properly installed. Turn off the
system and reinstall the DIMM before using the MemOK! function.
• Press the MemOK! switch under Windows
®
OS environment will reboot the computer
and start memory tuning.
• During the tuning process, the system loads and tests failsafe memory settings. It
takes about 30 seconds for the system to test one set of failsafe settings. If the test
fails, the system reboots and test the next set of failsafe settings. The blinking speed
of the DRAM_LED increases, indicating different test processes.
• Due to memory tuning requirement, the system automatically reboots when each
timing set is tested. If the installed DIMMs still fail to boot after the whole tuning
process, the DRAM_LED lights continuously. Replace the DIMMs with ones
recommended in the Memory QVL (Qualied Vendors Lists) in this user manual or on
the ASUS website at www.asus.com.
• If you turn off the computer and replace DIMMs during the tuning process, the system
continues memory tuning after turning on the computer. To stop memory tuning, turn
off the computer and unplug the power cord for about 5–10 seconds.
• If your system fail to boot due to BIOS overclocking, press the MemOK! switch to boot
and load BIOS default settings. A messgae will appear during POST reminding you
that the BIOS has been restored to its default settings.
• We recommend that you download and update to the latest BIOS version from the
ASUS website at www.asus.com after using the MemOK! function.

Asus SABERTOOTH X58 Specifications

General

Non-ECC	Yes
Memory channels	Triple-channel
Number of memory slots	6
Supported memory types	DDR3-SDRAM
Maximum internal memory	24 GB
Supported memory clock speeds	1066, 1333, 1600, 1800, 1866 MHz
System bus rate	6.4 GT/s
Processor socket	Socket B (LGA 1366)
Processor manufacturer	AMD
Compatible processor series	Intel Core i7, Intel Core i7 Extreme Edition
USB 2.0 connectors	3
Number of COM connectors	1
Number of SATA III connectors	2
Number of Parallel ATA connectors	0
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.
Audio chip	Realtek ALC892
Component for	PC
Motherboard chipset	Intel® X58
Audio output channels	7.1 channels
Motherboard form factor	ATX
Motherboard southbridge	Intel ICH10R
Motherboard chipset family	Intel
RAID levels	0, 1, 5, 10
Supported storage drive interfaces	SATA II, SATA III
On-board graphics card	No
Parallel processing technology support	Quad-GPU CrossFireX, Quad-GPU SLI
PCI Express slots version	2.0
Ethernet interface type	Gigabit Ethernet
BIOS type	AMI
ACPI version	2.0a
BIOS memory size	16 Mbit
Cables included	SATA
Controller 2nd interface type	Marvell PCIe 9128/JMicron JMB362

Weight and Dimensions

Depth	305 mm
Width	244 mm