Acer Altos R720 Series - Manual (Page 14)

1 System tour 4
- 3.5-inch half-height tape drive
SAS controller
• LSI SAS 1068 3Gb/s SAS controller
• Supports integrated SAS RAID
• Supports RAID levels 0, 1, 5, 10, and 50
• Requires RAID activation key
• Requires DDR2-400 registered ECC DIMM (mini DIMM) for RAID
cache
• Supports RAID BBU (Battery Backup Unit). Available as an upgrade
option.
Note: After installing the RAID activation key and RAID cache
DIMM, the system BIOS setup allows you to enable the hardware
RAID solution. For detailed installation instructions, see
“Configuring the integrated SAS hardware RAID components”
section on page 91.
You can also install a RAID BBU to improve fault tolerance by
enhance by protecting data in the RAID cache in the event of
power failure. For more information on how to install a RAID BBU,
see “To install the RAID BBU” section on page 95.
Networking
• Intel 82563EB Gigabit controller with dual ports
• Supports Intel I/O Acceleration Technology
PCI I/O
• Low profile riser slot
• Two x8 PCI Express slots (with x4 throughput)
• Full height riser slot
• Option 1: One 64-bits/133 MHz/3.3 V PCI-X slot +
Two x8 PCI Express slots (with x4 throughput)
• Option 2: Three 64-bits/133 MHz/3.3 V PCI-X slots
• Option 3: Three 64-bits/66 MHz/100 MHz/133 MHz PCI-X slots