Chapter 3: About Your RAID Controller
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23
About the Adaptec RAID 51645
The Adaptec RAID 51645 is a SAS RAID controller with these features:
Form Factor
Full Height, Half Length
Bus compatibility
PCIe
PCIe bus width
x8
PCIe bus speed
2.5 Gb/s
Phys (Unified Serial Ports)
20
Standard cache
512 MB DDR2
Connectors, Internal
4 mini-SAS x4 (SFF-8087)
Connectors, Exteneral
1 mini-SAS x4 (SFF-8088)
Maximum number of disk drives
20 direct-attached (or up to 256 with expanders)
Enclosure Support
I2C and SGPIO
Onboard speaker
Yes
Battery Backup Module
Adaptec Battery Module 800/800T (sold separately—see
page 17
)
CN1
I2C, CN0
I2C, CN1
Ext. Alarm
Aggregate Activity
Reserved
Activity CN2, CN3
I2C, CN3
I2C, CN2
Activity
CN0, CN1
CN6
CN0
CN2
CN3
Mode 0 Flash
ABM-800 connector
1 external
mini-SAS
connector
4 internal
mini-SAS
connectors