Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 67)

MegaRAID SAS RAID Controller Family 3-17
Copyright © 2005-2007 by LSI Logic Corporation. All rights reserved.
Table 3.7 SAS 8480E RAID Controller – Jumpers and
Connectors
Jumper Description Type Comments
J2 DIMM Socket Socket Holds cache memory module.
J3 SAS Ports 0–3 x4 SAS
ports A SAS 4x connector that connects to
physical drives and expanders.
J4 GND connector 1-pin
connector Reserved for LSI Logic internal use.
J5 Write pending
indication LED 2-pin
connector The connector for the enclosure
LED. When lit, the LED indicates the
on-board cache contains data and a
write from the cache to the hard
drives is pending. Optional.
J6 Firmware
initialization
mode 0 or 3 select 2-pin
connector No jumper: Optional BIOS is
enabled by the firmware.
Jumper: The optional BIOS is
disabled.
J7 On-board BIOS
enable 2-pin
connector The optional BIOS function is
enabled or disabled in software
depending on the status of this
jumper.
No jumper: BIOS enabled (default)
Jumper: BIOS disabled
J8 Universal
Asynchronous
Receiver/Transmitter
(UART) debugging 4-pin
connector Reserved for LSI Logic internal use.
J9 SAS Ports 4–7 x4 SAS
ports SAS 4x connector that connects to
physical drives and expanders.
J11 Keyed I
2
C connector 3-pin
connector
Provides support for enclosure
management.
Reserved for LSI Logic internal use.
J12 Unkeyed I
2
C
connector
3-pin
connector Provides support for enclosure
management.
Reserved for LSI Logic internal use.