Intel D865PERL Product Specification - Page 31
Real-Time Clock, CMOS SRAM, and Battery - windows 7
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Product Description IDE I/O and IRQ resources are assigned (IRQ 14 and 15). In Native mode, standard PCI resource steering is used. Native mode is the preferred mode for configurations using the Windows XP and Windows 2000 operating systems. ✏ NOTE Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors. For information about Serial ATA Refer to http://www.serialata.org 1.7.3.3 Intel® RAID Technology Boards equipped with the ICH5-R support RAID (Redundant Array of Independent Drives) level 0 on the Serial ATA ports. RAID 0 provides the ability to support striping. Two physical drives, of identical size, can be teamed together to create one logical drive. As data is written or retrieved from the logical drive, both drives operate in parallel, thus increasing the throughput. ✏ NOTE The ICH5-R provides support for RAID 0 and RAID boot in Windows XP only. 1.7.3.4 RAID Boot Configuration Overview A RAID array can be created by using the existing Serial ATA Ports, correctly configuring the BIOS, and installing drivers. The following steps are required to successfully establish a RAID configuration. 1. Enable RAID Support in BIOS. 2. Create a RAID array using the Intel® Application Accelerator (IAA) utility. 3. Install the IAA 3.0 RAID driver. 4. Format the RAID array. 5. Install the IAA 3.0 Companion Utility (this step is optional). For information about The location of the Serial ATA connectors The signal names of the Serial ATA connectors The BIOS Setup program's Boot menu Serial ATA RAID configuration Refer to Figure 22, page 68 Table 36, page 69 Table 73, page 118 http://developer.intel.com/design/ motherbd/rl/index.htm 1.7.4 Real-Time Clock, CMOS SRAM, and Battery 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. 31