Figure 1-15. Dc Power Distribution For The Low-Profile Computers - Dell OptiPlex GXi Service Manual

power supply
diskette drive
hard-disk drive
Dell OptiPlex GXi Systems Service Manual
1-16
keyboard
controller
P1 POWER1
PWRGOOD
PSON#
+5 VFP
system +5 VDC
–5 VDC
+12 VDC
–12 VDC
P2
+3.3 VDC
main memory
DIMM_A
P3
DIMM_B
optional
drive
DIMM_C
P4
3.5-inch
DIMM_D
P5
internal MICROPROCESSOR

Figure 1-15. DC Power Distribution for the Low-Profile Computers

+3 VDC
power
RTC/
management
NVRAM
logic
PSON#
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
POWER2
sockets
fuse
processor
core regulator
+3.3 VDC
core VCC +2.1 to +3.5 VDC
system board
riser board
battery
+3.3 VDC
+5 VDC
+12 VDC
–12 VDC
RISER
+5 VDC
+5 VDC
–5 VDC
–5 VDC
+12 VDC
+12 VDC
–12 VDC
–12 VDC
+12 VDC
FAN
+5 VFP
PANEL
+5 VDC
+5 VDC
USB
+5 VDC
KYBD
+5 VDC
MOUSE
PCI1
PCI2
ISA1
ISA2