Pci Interface; Led Headers; Table 5. Led Headers Pin-Out - Intel G22856-001 Hardware User's Manual

PCI Interface

The Intel
PCI Express* slot that complies with the PCI Express Specification, Revision 2.0. The
controller is PCI Express* 1.0 compatible and is backward-compatible with x8 or larger
slots that are wired with x1, x2, and x4 PCI Express* lanes.

LED Headers

There are 3 2-pin right angled headers present on the board and these headers are used for
connection to external LED which indicate activity on any of the connected HDDs,
indicate fault on any of the connected HDDs and to indicate a pending write command.
HDD Activity Header (J2A1)
Pin # Name
1 D_ACTIVE_PU
2 D_ACTIVE_N
Intel® RAID Controller RS25NB008 Hardware User's Guide
Pin #
16
17
18
19
20
®
RAID Controller RS25NB008 must be installed into a standard x8 or larger

Table 5. LED Headers Pin-out

HDD Fault Header (J1A2)
Description Name
330? to GFAULT_PU 330? to
P3V3_DUAL
Connected to GFAULT
Drain of
onboard MFT
Name
PFAIL_L Power Fail
GND Ground
BBE Battery Backup Enabled
BBSTROBE Battery Backup Strobe
BBSTATUS Battery Backup Status
Description
P3V3_DUAL
Connected to Drain
of onboard MFT
Description
Write Pending Header (J1A1)
Name Description
DIRTY_PU 330? to
P3V3_DUAL
DIRTY Connected to
Drain of onboard
MFT
19