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Chapter 3: About Your RAID Controller ● 20
About the Adaptec 4805SAS
The Adaptec 4805SAS is a SAS RAID controller with these features:
Note: Although this controller has an onboard speaker, you can
connect it to an internal
speaker with these specifications: 3.0 V, 90.0 mA
. The internal speaker is not required, as the
onboard speaker volume is appropriate for most environments.
Bus compatibility PCIe x8
I/O processor clock frequency 500 MHz
Standard cache
128 MB DDR2
1
1
256 MB also available
Maximum number of disk drives 8 (or up to 100 with expanders)
External Connector mini-SAS 4x multilane (SFF-8470)
Internal Connector 2x SAS 4x multilane (SFF-8484)
Battery backup module Adaptec Battery Module 600 (sold separately—see page 17)
Audible alarm Yes
1 external
SAS
connector
Mounting
bracket
Two 4-wide internal
SAS connectors
PCIe connector
Battery connector
Activity LED connector
(top 2 left/right pins)
Mode 0 Flash connector
Alarm connector
Charge LED
(for battery backup module)
Back side of Controller
Power LED
Activity LED
Diag LED
Activity LED
Phy
3
0
1
2
7
6
5
4