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Table 3.4
MegaRAID 320-2X Headers and Connectors
Connector Description
J1
Termination Enable
Channel 0
J2
Termination Enable
Channel 1
J5
Internal SCSI Channel 0
Connector
J6
Internal SCSI Channel 1
Connector
J7
External SCSI Channel 0
Connector
2
J8
I
C Header
J9
Serial Debug Interface
J10
Mode 0 Initialization
Header
J11
On-Board Cache LED
J12
BBU Daughter Card
J13
SCSI Activity LED
J14
External SCSI
Channel 1 Connector
J16
EEPROM Access
Connector
J17
Termination Power
Enable Channel 0
J18
Termination Power
Enable Channel 1
J19
On-Board BIOS Enable 4-pin
U6
DIMM Socket
Type
3-pin
header
3-pin
header
68-pin
connector
68-pin
connector
68-pin
connector
4-pin
header
3-pin
connector
2-pin
connector
2-pin
header
40-pin
header
2-pin
header
68-pin
connector
2-pin
connector
2-pin
header
2-pin
header
header
(two rows
of two
pins each)
DIMM
socket
MegaRAID 320 Storage Adapter Family
Copyright © 2003-2008 by LSI Corporation. All rights reserved.
Comments
Jumper on pins 1-2: Software uses drive detection to
control SCSI termination (default: do not change).
Jumper on pins 2-3: On-board SCSI termination
disabled.
No jumper: On-board SCSI termination enabled.
Internal high-density SCSI bus connector
External very high-density SCSI bus connector
Reserved for LSI Logic internal use
Reserved for LSI Logic internal use
Reserved for LSI Logic internal use
LED glows when the on-board cache contains
data and a write from the cache to the hard drives
is pending.
Connector for an optional back-up battery pack
Connector for enclosure LED to indicate data
transfers. Connection is optional.
External very high-density SCSI bus connector
Reserved for LSI Logic internal use
Jumpered: MegaRAID 320-2X supplies termination
power.
No jumper: SCSI bus provides termination power.
No jumper: BIOS enabled (default)
Jumpers on pins 1/3: NVSRAM clear
Jumper on pins 2/4: BIOS disable
The MegaRAID 320-2X supports up to 512 Mbytes of
333 MHz unbuffered DDR ECC SDRAM, in a x72
configuration.
3-9
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