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Appendix A: Integration and Usage Tips
102
IntelP®P Server Board S3420GP TPS
Revision 1.0
Intel order number E65697-003
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-Volt standby is still
present even though the server board is powered off.
Supports only Intel
®
Xeon
®
3400 Series processor with 95 W and less Thermal Design
Power (TDP). Does not support previous generations of the Intel
®
Xeon
®
processor.
On the back edge of the server board are 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.
Supports only registered DDR3 DIMMs (RDIMMs) and unbuffered DDR3 DIMMs
(UDIMMs). Does not support the mixing of RDIMMs and UDIMMs.
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 A2. A six-DIMM
configuration (DIMM socketsA1, A2, A3, B1, B2 and B3) performs better than a three-
DIMM configuration (DIMM sockets A1, A2, and A3).
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 the AC power cord plugged in. 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 needed settings.
Normal Integrated BMC functionality is disabled with the force Integrated BMC update
jumper set to the “enabled” position (pins 2-3). The server should never be run with the
Integrated 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.
When performing a normal BIOS update procedure, the BIOS recovery jumper must be
set to its default position (pins 1-2).