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Figure 1-27 – Dell OptiPlex GX1p User Manual

Page 45

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System Overview

1-33

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+5 VDC

+3.3 VDC

fuses (2)

core VCC +2.1 to +3.5 VDC

+3.3 VDC

power
management
and NIC logic

RTC/
NVRAM

+5 VDC

+5 VDC

+5 VDC

+5 VFP

+12 VDC
–12 VDC

+3 VDC

P2

+3.3 VDC

PWRGOOD

P1

POWER_1

PSON#
+5 VFP

+5 VDC
+12 VDC
–12 VDC

PSON#
+5 VFP

+5 VDC
+12 VDC
–12 VDC

P3

+12 VDC

+12 VDC
–12 VDC

system
power supply

battery

+3.3 VDC
+5 VDC

PCI1

MICROPROCESSOR

PANEL

KYBD

MOUSE

DIMM_A

main memory
sockets

FAN

RISER

riser board

system board

POWER_2

processor
core regulator

+5 VDC

USB

internal
hard-disk drive

P1

NOTE: +5 VFP is routed to
the integrated NIC logic on
the system board and to P1
on the riser board.

DIMM_B

DIMM_C