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Table 3.4
MegaRAID 320-4X Headers and Connectors (Cont.)
Connector Description
J13
Termination Enable
Channel 0
J6
Termination Enable
Channel 1
J8
Termination Enable
Channel 2
J10
Termination Enable
Channel 3
J14
Termination Power Enable
Channel 0
J7
Termination Power Enable
Channel 1
J9
Termination Power Enable
Channel 2
J11
Termination Power Enable
Channel 3
J24
Onboard BIOS Enable
J4
DDR DIMM Socket
J17
Write Pending Indicator
(Dirty Cache LED)
Type
3-pin
header
3-pin
header
3-pin
header
3-pin
header
2-pin
header
2-pin
header
2-pin
header
2-pin
header
2-pin
header
184-pin
header
2-pin
header
The MegaRAID 320 Storage Adapter Family
Copyright © 2003 by LSI Logic Corporation. All rights reserved.
Comments
No jumper: Software uses drive detection to
control SCSI termination (default: do not change).
Jumper on pins 2-3: Onboard SCSI termination
disabled.
Jumper on pins 1-2: termination is controlled
through port address 0xE007.0000.
Jumper installed enables TermPWR from the
SCSI bus to the appropriate SCSI channel.
When open, optional system BIOS is enabled;
when closed, it is disabled. Status of this jumper
can be read through bit 0 at local CPU address
0x9F84.0000.
Socket for mounting DDR SDRAM DIMM. The
MegaRAID 320-4X supports the following sizes of
SDRAM: 32, 64, 128, 256, and 512 Mbytes, and
1 Gbyte.
Connector for enclosure LED to indicate when
data in the cache has yet to be written to the
device. Optional.
3-9
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