Figure 1-6. Dc Power Distribution - Dell Dimension XPS H266 Service Manual

1-10 Dell Dimension XPS H233 and XPS H266 Systems Service Manual
3.3 VDC
GND
PWRGOOD
+12 VDC
power +5 VDC
supply
–5 VDC
+5 VDC
GND
+5 VSB
PSON#
power
switch
P1
J9D1
POWER
PSON#
GND
+5 VDC
J7J2
GND
+5 VDC
J7J1
GND
+5 VDC
J6J2
GND
+5 VDC
J6J1
GND
2.1–2.8 V
converter
+2.1–2.8 VDC
+1.5 VDC
CPU/system
logic
GND

Figure 1-6. DC Power Distribution

P6
P7
J7M1
GND
+5 VSB
GND
+5 VDC
–5 VDC
–12 VDC
+12 VDC
fuse
1.5-V
converter
fuse
system board
5.25-inch
drive
P2
5.25-inch
drive
P3
3.5-inch drives
(second drive
uses Y-cable)
P5
3.5-inch
diskette drive
P4
primary
hard-disk drive
secondary
hard-disk drive
(uses Y-cable)
battery
RTC
ISA
connectors
PCI
connectors
GND
KEYBRD
+5 VDC
GND
MOUSE
+5 VDC
GND
+5 VDC USB
GND
J8L1
+12 VDC