2 of 4
Figure 1 Layout of the MegaRAID SAS 9240-4i 
RAID Controller
Ta ble 1  describes the jumpers and the connectors 
on the SAS 9240-4i RAID controller.
Table 1 SAS 9240-4i Jumpers and Connectors
Figure 2 shows the location of the jumpers and the 
connectors on the SAS 9240-8i RAID controller.
Figure 2 Layout of the MegaRAID SAS 9240-8i 
RAID Controller
Ta ble 2  describes the jumpers and the connectors 
on the SAS 9240-8i RAID controller.
Table 2 SAS 9240-8i 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 3. Press 
down gently, but firmly, to seat the card correctly 
Jumper/
Connector Type Description
J1 RISCwatch header 16-pin header 
Reserved for LSI use.
J2 CPLD header 10-pin header
Reserved for LSI use.
J3 External LED drive 
activity/fault header
4-pin connector
Connects to external, green or red 
LEDs that indicate drive activity or 
faults.
J4 x4 Mini-SAS (SFF-
8087) Ports 0–3 
internal connector
Connects the cables from the 
controller to SAS drives or SATA II 
drives, or a SAS expander.
J6 PCI Express x8 
board edge 
connector
x8 interface that provides 
connections on both the top and 
the bottom of the board.
TP1 Universal Asyn-
chronous Receiver/
Transmitter (UART) 
debugging
4-pin connector
Reserved for LSI use.
U2 MegaRAID Skinny 
1-wire connector
2-pin connector
To create a RAID 5 configuration, 
you have to plug a 1-wire key into 
this connector. Refer to the 
MegaRAID 6Gb/s SAS RAID 
Controllers User’s Guide for more 
information.
Jumper/
Connector Type Description
J1 RISCwatch header 16-pin header 
Reserved for LSI use.
J2 CPLD header 10-pin header
Reserved for LSI use.
J3 External LED drive 
activity/fault header
4-pin connector
Connects to external, green or red 
LEDs that indicate drive activity or 
faults.
J4 x4 Mini-SAS (SFF-
8087) Ports 0–3 
internal connector
Connects the cables from the 
controller to SAS drives or SATA II 
drives, or a SAS expander.
J5 x4 Mini-SAS (SFF-
8087) Ports 4–7 
internal connector
Connects the cables from the 
controller to SAS drives or SATA II 
drives, or a SAS expander.
J6 PCI Express x8 
board edge 
connector
x8 interface that provides 
connections on both the top and 
the bottom of the board.
TP1 Universal Asyn-
chronous Receiver/
Transmitter (UART) 
debugging
4-pin connector
Reserved for LSI use.
U2 MegaRAID Skinny 
1-wire connector
2-pin connector
To create a RAID 5 configuration, 
you have to plug a 1-wire key into 
this connector. Refer to the 
MegaRAID 6Gb/s SAS RAID 
Controllers User’s Guide for more 
information.