Technical Product Specification

Appendix A: Integration and Usage Tips Intel® Server Board S5520UR and S5520URT TPS
Intel order number E44031-012 Revision 1.9
138
Appendix A: Integration and Usage Tips
 When adding or removing components or peripherals from the server board, AC power
must be removed. With AC power plugged into the server board, 5-V standby is still
present even though the server board is powered off.
 This server board only supports The Intel
®
Xeon
®
Processor 5500 Series and Intel
®
Xeon
®
Processor 5600 Series with 130 W and less Thermal Design Power (TDP).
Previous generations of the Intel
®
Xeon
®
processors are not supported.
 Processors must be installed in order. CPU 1 is located near the rear of the server
board and must be populated to operate the board.
 On the back edge of the server board are eight diagnostic LEDs that display a sequence
of amber POST codes during the boot process. If the server board hangs during POST,
the LEDs displays the last POST event run before the hang.
 This server board only supports registered DDR3 DIMMs (RDIMMs) and unbuffered
DDR3 DIMMs (UDIMMs). Mixing of RDIMMs and UDIMMs is not supported.
 For the best performance, the number of DDR3 DIMMs installed should be balanced
across both processor sockets and memory channels. For example, a two-DIMM
configuration performs better than a one-DIMM configuration. In a two-DIMM
configuration, DIMMs should be installed in DIMM sockets A1 and D1. A six-DIMM
configuration (DIMM sockets A1, B1, C1, D1, E1, and F1) performs better than a three-
DIMM configuration (DIMM sockets A1, B1, and C1).
 The Intel
®
Remote Management Module 3 (Intel
®
RMM3) connector is not compatible
with the Intel
®
Remote Management Module (Product Order Code - AXXRMM) or Intel
®
Remote Management Module 2 (Product Order Code - AXXRMM2).
 Clear the CMOS with AC power cord plugged. Removing the AC power before
performing the CMOS clear operation causes the system to automatically power up and
immediately power down after the CMOS clear procedure is followed and AC power is
re-applied. If this happens, remove the AC power cord, wait 30 seconds, and then re-
connect the AC power cord. Power up the system and proceed to the <F2> BIOS Setup
utility to reset the desired settings.
 Normal Integrated BMC functionality is disabled with the BMC Force Update jumper
(J1H1) set to the “enabled” position (pins 2-3). The server should never be run with the
BMC Force Update jumper set in this position and should only be used when the
standard firmware update process fails. This jumper should remain in the default
(disabled) position (pins 1-2) when the server is running normally.
 This server board no longer supports the rolling BIOS (two BIOS banks) and implements
a BIOS recovery mechanism instead.
 When performing a normal BIOS update procedure, the BIOS recovery jumper (J1E5)
must be set to its default position (pins 1-2).