Avago Technologies MegaRAID SATA 300-4XLP - Manual (Page 39)

Storage Adapter Board Specifications 3-9
Version 1.4 Copyright © 2004–2006 by LSI Logic Corporation. All rights reserved.
3.2.6 SATA 300-8X Connectors and Jumpers
Table 3.4 describes the connectors and jumpers on the SATA 300-8X
board.
Table 3.4 SATA 300-8X Connectors and Jumpers
Jumper Type Description
J1 LED SATA Activity
Connector 2-pin connector.
When lit, it indicates SATA activity on one or more SATA drives.
J2, J4,
J5, J12
SATA 300-8X Ports Ports 0–7.
These ports connect the cables from the adapter to the SATA
physical drives.
J3 BBU Daughtercard 40-pin connector.
Connector for an optional backup battery pack.
J6 Serial Port RS232
Interface 3-pin connector.
Used for diagnostic purposes.
J7 I
2
C Interface 4-pin connector.
The I
2
C interface is for communication with storage enclosure
processor (SEP) devices.
J8 Write Pending Activity
(Dirty Cache) LED 2-pin connector.
When lit, it indicates that the on-board cache memory contains
data and that a write from cache to the physical drives is pending.
J9 Serial EEPROM
Interface 2-pin connector.
When equipped with a connector from a serial programming
device, it provides the interface for programming the on-board,
manufacturing-tracking serial EEPROM.
J10 BIOS Disable 2-pin connector.
Jumpered: BIOS disabled.
Unjumpered: BIOS enabled. This is the default.