Intel SE7520BD2 Technical Product Specification

Environmental Specifications Intel® Server Board SE7520BD2 Technical Product Specification
148 Intel Confidential Revision 1.3
7.2.2 Voltages Supported
The EPS12V 550-W power supply generates the following voltages: +5v, +3.3v, +12v, -12v and
+5v Standby. High-frequency processor support will need a ~650W power supply, which is not
yet defined. Other voltages required by the design are derived from linear and switching
regulators. Refer to the modified power supply specification for additional information.
Table 96. Intel® Server Board SE7520BD2 Board Voltage Table
Voltage Net Name Source Tolerance
+12V P12V Power Supply +5% / -4%
+3.3V P3V3 Power Supply +5% / -3%
-12V N12V Power Supply +9% / -5%
+5V P5V Power Supply +5% / -4%
+5V Standby P5V_STBY Power Supply +5% / -3%
+12V P12V_CPU_0 Power Supply +5% / -4%
+12V P12V_CPU_1 Power Supply +5% / -4%
+0V GND Power Supply N/A
+3.3V Standby P3V3_STBY Linear Regulator from +5V Standby +/-2.5%
+3.3V Auxiliary P3V3_AUX Switches between 3.3V main and standby power rail
depending on normal operation and sleep states
respectively
+/-3%
+1.2V P_VTT Linear Regulator from +1.8V +/-3%
+1.5V P1V5 Switching Regulator from +5V +/-3%
+1.8V P1V8_SCSI Linear Regulator from +3.3V +/-3%
+2.5V P2V5_VIDEO Linear Regulator from +5V +/-3%
+2.5V PV_SCSIA,
PV_SCSIB
Linear Regulator from +5V +/-1%
+1.8V P1V8 Switching Regulator from +12V +/-3% (without
power switches)
+1.8V DDR P1V8_CHA,
P1V8_CHB
MCH_VCCDDR
Switched rail from P1V8 +3/-3% (without
power switches)
+1.8V Auxiliary P1V8_NIC Linear Regulator from +3.3V or +3.3V standby +/-3%
+1.0V Auxiliary P1V0_NIC Linear Regulator from +3.3V or +3.3V Standby +/-3%
+1.2V Auxiliary Lan_V_1P2 Linear Regulator from +3.3V Standby +/-3%
+2.5V Auxiliary Lan_V_2P5 Linear Regulator from +3.3V Standby +/-3%
+1.5V P1V5_PXH Linear Regulator from +3.3V +/-3%
+1.5V or +3.3V PCI_VIO Switched rail from either 1.5V linear or 3.3V rail +/-3%
VID CPU0 P_VCCP0 Switching Regulator from +12V N/A
VID CPU1 P_VCCP1 Switching Regulator from +12V N/A

Intel SE7520BD2 Specifications

General

Brand	Intel
Model	SE7520BD2
Category	Server Board
Language	English