Intel S5500WB

Power Subsystem Intel® Server Board S5500WB TPS
Revision 1.3
Intel order number E53971-004
82
10. Power Subsystem
10.1 Server Board Power Distribution
Figure 32. Power Distribution Diagram
10.2 Power Supply Compatibility
The Intel
®
Server Board S5500WB is offered in two models:
• SSI SKU: This version of the server board is designed to work with an “off-the-shelf”
multi-rail power supply that adheres to the SSI power specification: “Power Supply
Design Guideline for 2008 Dual-Socket Servers and Workstations”. You can view SSI
specifications at the following website: http://ssiforum.org
• 12V SKU: This version of the server board is designed to work with specially-designed
“single rail” power supplies that provide 12V and 5V standby current. The server board
has integrated, high-efficiency voltage regulators that produce other voltages required
(for example, 3.3 V, 5 V, and so forth) and can also supply 5 V power required by hard
drives.