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Table 3.2
MegaRAID 320-2 Headers and Connectors
Connector Description
J2
SCSI Activity LED
J3
Write Pending Indicator
(Dirty Cache LED)
J4
SCSI Termination Enable Channel 1 3-pin header
J5
SCSI Termination Enable Channel 0 3-pin header
J6
DIMM socket
J7
Internal SCSI Channel 0 Connector 68-pin connector Internal high-density SCSI bus
J8
Internal SCSI Channel 1 Connector 68-pin connector
J9
External SCSI Channel 0 Connector 68-pin connector External very high-density SCSI
J10
Battery connector
J16
Onboard BIOS Enable
J17
Termination Power Enable
Channel 0
J18
Termination Power Enable
Channel 1
J19
External SCSI Channel 1 Connector 68-pin connector External very high-density SCSI
The MegaRAID 320 Storage Adapter Family
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
Type
Comments
4-pin header
Connector for LED on enclosure
to indicate data transfers.
Optional
2-pin header
Connector for enclosure LED to
indicate when data in the cache
has yet to be written to the
device. Optional
Jumper on pins 1-2: Software
uses drive detection to control
SCSI termination (default: do not
change).
Jumper on pins 2-3: Onboard
SCSI termination disabled.
No jumper: Onboard SCSI
termination enabled.
(See J17 and J18.)
DIMM socket
The MegaRAID 320-2 supports
the following sizes of SDRAM:
32, 64, 128, and 256 Mbytes.
connector.
bus connector.
3-pin header
Connector for an optional battery
pack.
Pin-1 -BATT Terminal (black wire)
Pin-2 Thermistor (white wire)
Pin-3 +BATT Terminal (red wire)
2-pin header
No jumper: BIOS enabled
(default)
Jumpered: BIOS disabled
2-pin header
Jumpered: TERMPWR is
enabled from the PCI bus.
(default)
2-pin header
No jumper: TERMPWR is
enabled from the SCSI bus. (See
J4 and J5)
bus connector.
3-5
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