Intel SC5299WS User Manual

Page of 154
Intel
®
 Entry Server Chassis SC5299-E TPS 
Power Sub-system 
Revision 3.1 
 
 
Intel order number D37594-005 
45
2.3  650-W Power Supply Module 
The 650-W power supply module specification defines a 1+1 redundant power supply that 
supports a dual-processor Intel
®
 Xeon
®
 server system. The power supply has two outputs to 
power the system: 12VDC and 5VSB. A separate cage (including the power distribution board) 
is designed to plug directly to the output connector of the power supply module and provide 
additional power converters to produce other required voltages. An IEC connector is provided 
on the external face for AC input to the power supply. The power supply contains cooling fans 
and meets acoustic requirements.  
2.3.1 
Mechanical Overview 
2.3.1.1 
Handle and Retention Mechanism 
The power supply has a handle to provide a place to grip the power supply for removal and 
insertion. The power supply has a simple retention mechanism to retain the power supply once 
it is inserted. This mechanism withstands the specified mechanical shock and vibration 
requirements. The tab on the retention mechanism is green to indicate it is a hot-swap touch 
point. The latch mechanism is designed in such a way as to prevent inserting the power supply 
with the power cord plugged in. This aids the hot swapping procedure: on removal, the power 
cord is unplugged first, then the power supply is removed; on insertion, the power supply is 
inserted first and then the power cord is plugged in. 
 
The handle protects the operator from any burn hazard.  
 
 The plastic handle is molded in the following material: 
Material 
 
 Color 
 Designation 
GE 
2800 
 
 Green 
 GN3058 
BAYER FR2000 
Green   
3200 
2.3.1.2 
Acoustic and Fan Speed Control Requirements 
Sound power levels emitted by the power supply meet the requirements shown in the following 
table. Sound power is measured as described in ISO7779. Under a condition where inlet air 
temperature exceeds the limit, sound power level may exceed the limit. 
The power supply incorporates a variable speed fan. The fan speed varies linearly based on 
output loading and ambient temperature. The declared sound power levels (LwAd) of the power 
supply unit (PSU) meet the requirements shown in the following table. Sound power is 
measured according to ECMA 74 (www.ecma-international.org) and reported according to ISO 
9296. 
The acoustic measurement of the power supply is performed with the power supply fan 
operating at the RPM corresponding to the operating conditions shown in the following table: