Avago Technologies MegaRAID SAS 8880EM2 - Manual (Page 2)

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Table 1 describes the jumpers and the connectors on the
SAS 8880EM2 RAID Controller.
Table 1 Jumpers and Connectors
Step 4 Install the RAID Controller
Insert the RAID controller in a PCI Express slot
on the motherboard, as shown in
Figure 2 . Press
down gently, but firmly, to seat the card correctly
in the slot. Secure the RAID controller to the
computer chassis with the bracket screw.
Note: Refer to the guide for your motherboard for
information about the PCI Express slot.
Note: This is a PCI Express x8 card. It can operate in
x8 or x16 slots.
Figure 2 Installing the MegaRAID SAS 8880EM2
RAID Controller
Step 5 Configure and Install the SAS Devices, SATA
II Devices, or Both in the Host Computer Case
Refer to the documentation for the devices for any
preinstallation configuration requirements.
Step 6 Connect the MegaRAID SAS 8880EM2 RAID
Controller to the Devices
Use SAS cables to connect the SAS RAID
controller to SAS devices, SATA II devices, or
both. See
Figure 1 to view the connector
locations on the RAID controller.
Refer to the MegaRAID 1078 SAS RAID
Controllers User’s Guide on the MegaRAID
Universal Software Suite CD for detailed
information about the SAS cables.
Jumper/
Connector Type
Description
J1 Battery Backup
Connector 20-pin connector
Provides the interface to the bat-
tery backup unit. The LSIiBBU07
connects directly to the SAS
8880EM2 RAID Controller.
J2 Universal Asyn-
chronous Receiver/
Transmitter
debugging 4-pin connector
Reserved for LSI use.
1.
Note: This connector uses
3.3V LVTTL levels and will be
damaged if connected to stan-
dard transceiver levels.
J5 BIOS Disable 2-pin connector
Reserved for LSI use.
J6 Board Default
Debug 2-pin connector
Reserved for LSI use (default
jumper).
J7 Cache Write Pend-
ing LED 2-pin connector
The connector for the enclosure
LED. It provides a signal that indi-
cates when the on-board cache
contains data and a write from the
cache to the hard drives is pend-
ing. Optional.
J13 Global Drive Activ-
ity header: 2-pin connector
Indicates activity on the physical
drives. Operates at approximately
10mA at 3.3V.
J20 x4 SAS PORT B
(Lanes 0-3) The x4 SAS connectors connect
the cables from the RAID control-
ler to SAS or SATA II physical
drives or to a SAS expander.
J21 x4 SAS PORT A
(Lanes 4-7) The x4 SAS connectors connect
the cables from the RAID control-
ler to SAS or SATA II physical
drives or to a SAS expander.
J23 Debug connector Reserved for LSI use.
85020-01