User`s manual

CyberResearch
®
Motherboards MXGD Series
CyberResearch, Inc. 25
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
2.5.7 Intel
®
ICH8DO Real Time Clock
256 bytes of battery backed RAM is provided by the Motorola MC146818A real time clock
(RTC) integrated into the ICH8DO. The RTC operates on a 3V battery and 32.768KHz
crystal. The RTC keeps track of the time and stores system data even when the system is
turned off.
2.5.8 Intel
®
ICH8DO SATA Controller
The two integrated SATA controllers on the ICH8DO southbridge support six SATA II
drives on the MXGD with independent DMA operations. The SATA controller contains two
modes of operation – a legacy mode using I/O space, and an AHCI mode using memory
space. SATA controller specifications are listed below.
 Supports independent DMA operation on up to six ports
 Supports six SATA drives
 Supports 3Gb/s data transfer speeds
 Supports Serial ATA 1.0 Specification, Revision 1.0