Workstation Board Features
Intel® Workstation Board S5520SC Service Guide
15
1-2
(Default)
These pins should be connected for normal system operation.
BIOS Recover
(J1E5)
2-3
The main system BIOS does not boot with pins 2-3 connected. The system only boots
from EFI-bootable recovery media with a recovery BIOS image present.
These pin should
not
be connected for normal system operation.
1-2
(Default)
BMC Firmware Force Update Mode – Disabled
.
These pins should have a jumper in place for normal system operation.
BMC Force
Update
(J1H1)
2-3
BMC Firmware Force Update Mode – Enabled.
These pins should
not
be connected for normal operation.
1-2
(Default)
Rear RJ-45 Serial A port is configured for DSR to DTR.
Serial Port A
Configuration
(J4B2)
2-3
Rear RJ-45 Serial A port is configured for DCD to DTR.
Back Panel Features
A. POST Diagnostic LEDs
G. Audio: side surround out
B. Serial A Port (top), IEEE 1394a port
(bottom)
H. Audio: front surround out
C. ID LED
I. Audio: microphone in
D. System Status LED
J. Audio: line-in
E. Audio: back surround out
K. NIC 1 (top, default management port), Two USB (bottom)
F. Audio: center / LFE out
L. NIC 2 (top), Two USB (bottom)
Figure 4. Back Panel Features
The NIC LEDs at the right and left of each NIC provide the following information.
Table 3. NIC LEDs
NIC
LED Color
LED State
Description
Off
No network connection
Left LED
Blinking Green
Transmit/receive activity
Off
10 Mbps connection (if left LED is on or blinking)
Solid Green
100 Mbps connection
NIC 1 and NIC 2
(Gigabit)
Right LED
Solid Amber
1000 Mbps connection
