Technical Product Specification

Product Description
25
I/O and IRQ resources are assigned (IRQ 14 and 15). Native mode is the preferred
mode for configurations using the Windows* XP and Windows 7 operating systems.
NOTE
Many SATA drives use new low-voltage power connectors and require adapters or
power supplies equipped with low-voltage power connectors.
For more information, see: http://www.serialata.org/
.
For information about
Refer to
The location of the SATA connectors Figure 10, page 43
1.5.4.1 SATA RAID
The board supports Intel Rapid Storage Technology which provides the following RAID
(Redundant Array of Independent Drives) levels via the Intel Z75 Express Chipset:
• RAID 0 - data striping
• RAID 1 - data mirroring
• RAID 0+1 (or RAID 10) - data striping and mirroring
• RAID 5 - distributed parity
1.6 Real-Time Clock Subsystem
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When
the computer is not plugged into a wall socket, the battery has an estimated life of
three years. When the computer is plugged in, the standby current from the power
supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at
25 ºC with 3.3 VSB applied via the power supply 5V STBY rail.
NOTE
If the battery and AC power fail, date and time values will be reset and the user will be
notified during the POST.
When the voltage drops below a certain level, the BIOS Setup program settings stored
in CMOS RAM (for example, the date and time) might not be accurate. Replace the
battery with an equivalent one. Figure 1 on page 13 shows the location of the battery.
1.7 Legacy I/O Controller
The I/O controller provides the following features:
• PS/2-style keyboard/mouse port
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• Intelligent power management, including a programmable wake-up event interface
• Fan Control
The BIOS Setup program provides configuration options for the I/O controller.