22 Intel® RAID Controller RS25DB080 Hardware User’s Guide
PCI Interface
The Intel
®
RAID Controller RS25DB080 must be installed into a standard x8 or larger
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.
Table 5. LED Headers Pin-out
Figure 10. LED Header
HDD Activity Header (J1A4) HDD Fault Header (J1A1) Write Pending Header (J1A2)
Pin # Name Description Name Description Name Description
1 D_ACTIVE_PU 330? to
P3V3_DUAL
GFAULT_PU 330? to
P3V3_DUAL
DIRTY_PU 330? to
P3V3_DUAL
2 D_ACTIVE_N Connected to
Drain of
onboard MFT
GFAULT Connected to Drain
of onboard MFT
DIRTY Connected to
Drain of onboard
MFT
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