Service Guide

Server Board Features
6 Intel® Server Board S5520HC, S5520HCT and S5500HCV Service Guide
Jumper Name Pins What happens at system reset
BMC Force
Update
(J1H1)
1-2 (Default) BMC Firmware Force Update Mode – Disabled.
These pins should have a jumper in place for normal system operation.
2-3 BMC Firmware Force Update Mode – Enabled.
These pins should not be connected for normal operation.
Back Panel Features
A. System Status LED E. Video
B. ID LED F. NIC 1 (top, default management port), Two USB (bottom)
C. POST Diagnostic LEDs G. NIC 2 (top), Two USB (bottom)
D. Serial A Port
Figure 5. 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
NIC 1 and NIC 2
(Gigabit)
Left LED
Off No network connection
Blinking Green Transmit/receive activity
Right LED
Off 10 Mbps connection (if left LED is on or blinking)
Solid Green 100 Mbps connection
Solid Amber 1000 Mbps connection