Avago Technologies MegaRAID SAS 8204ELP - Manual (Page 57)

MegaRAID SAS RAID Controller Family 3-7
Copyright © 2005-2007 by LSI Logic Corporation. All rights reserved.
3.1.4 MegaRAID SAS 8304ELP/8308ELP RAID Controller
The MegaRAID SAS 8304ELP PCI Express Low-Profile Disk Array RAID
Controller has one Intel IOP333 I/O processor and one LSI SAS1068,
which controls four SAS ports.
The MegaRAID SAS 8308ELP PCI Express Low-Profile Disk Array RAID
controller has one Intel IOP333 I/O processor, and one LSI SAS1068
device, which controls eight SAS ports.
Note: The SAS 8304ELP RAID controller does not contain the
J10 (ports 4–7) connector. This is the only difference
between the SAS 8304ELP RAID controller, and the SAS
8308ELP RAID controller.
This subsection provides the board layout for the SAS 8308ELP RAID
controller, and the connector and jumper information for both the SAS
8304ELP RAID controller and the SAS 8308ELP RAID controller.
Figure 3.4 shows the jumpers and the connectors, and Table 3.4
describes them.
J5 Clear NVRAM 2-pin
connector Used to clear the contents of the
non-volatile random access memory.
J6 Write-pending
indicator (dirty
cache) LED 2-pin
header Connector for an LED mounted on
the system enclosure. The LED
indicates when the data in the cache
has yet to be written to the storage
devices.
J7 Onboard BIOS
disabled 2-pin
header Disables the BIOS so that it does
not run on the firmware.
J8 Serial EEPROM 2-pin
connector Provides board information to the
host: serial number, revision, and
manufacturing date. This eliminates
the need to open a system to obtain
board information.
J9 NMI (non-maskable
interrupt) 2-pin
connector Reserved for LSI Logic internal use.
Table 3.3 SAS 8300XLP RAID Controller – Jumpers and
Connectors (Cont.)
Jumper Description Type Comments