Dell OptiPlex Gxi - Manual (Page 34)

1-16 Dell OptiPlex GXi Systems Service Manual
Figure 1-15. DC Power Distribution for the Low-Profile Computers
–5 VDC
fuse
core VCC +2.1 to +3.5 VDC
+3.3 VDC
power
management
logic
RTC/
NVRAM
+5 VDC
+5 VDC
+5 VDC
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
+3 VDC
P2
+3.3 VDC
PWRGOOD
P1 POWER1
PSON#
+5 VFP
+5 VDC
+12 VDC
–12 VDC
PSON#
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
P3
+5 VDC
+12 VDC
–12 VDC
+12 VDC
+12 VDC
–12 VDC
3.5-inch
diskette drive
system
power supply
keyboard
controller
battery
+5 VDC
–5 VDC ISA1
ISA2
PCI1
PCI2
MICROPROCESSOR
PANEL
KYBD
MOUSE
DIMM_A
DIMM_B
DIMM_C
DIMM_D
main memory
sockets
P4
FAN
RISER
optional
drive
P5
riser board
system board
internal
hard-disk drive
POWER2
processor
core regulator
+5 VDC
USB
+3.3 VDC