Artesyn PCIE-8120 Installation and Use (July 2014) - Manual (Page 60)

PCIE-8120 Hardware Description
PCIE-8120 Installation and Use (6806800R89C) 60
B.4 Power Supply Architecture
The following figure provides an overview of the Power Supply Architecture of PCIE-8120:
The PCIE-8120 uses seven DC/DC building blocks to provide the necessary operating voltages
that are required by the devices on the board.
 Main voltage supply comes from the 12V card edge or ATX 6-Pin connector via the
assembly option. For more information, see
P2 External ATX 6-Pin Power Connector (only on
-N versions) on page 53 .
 3.3V from card edge supplies power-up control circuitry.
 3.3V aux is not used (no wake capability).
 Current/voltage/power monitor, see I/V/P Sensors on page 72 .
 Card power management control by CPLD, see Card Power Management on page 68 .
Figure B-5 Board Power Supply Architecture
V1P0_DSP_A @ 30 A
DC
DC
V1P0_DSP_B @ 30 A
DC
DC
V1P5_DSP_A @ 4.0 A
DC
DC
V1P5_DSP_B @ 4.0 A
DC
DC
V1P2_DSP @ 5.0 A
DC
DC
V2P5_DSP @ 4.0 A
DC
DC
V3P3_DSP @ 3.0 A
DC
DC
12V main supply 12V
LDO V1P8_ETH @ 0.1 A
5
PWRENABLE
PWRGOOD
5
PCIe x
4
card
edge
3.3V
150W-ATX connector
12V
Assembly
option
12V -
UVLO
VP12_FAIL
U/I/P-
Monitor
PVT_I2C_bus, ALERT_N