Figure 1-10. Dc Power Distribution - Dell 2100 Service Manual

P1
PSON#
+5 VFP
+5 VDC
system
–5 VDC
power supply
+12 VDC
–12 VDC
P7
+3.3 VDC
P2
optional
drive
P3
CD-ROM
drive
P4
3.5-inch
diskette drive
P5
internal
hard-disk drive
P6
internal
hard-disk drive
internal Y-cable
hard-disk drive

Figure 1-10. DC Power Distribution

keyboard
controller
+3 VDC
power
RTC/
management
NVRAM
logic
POWER
PWRGOOD
PSON#
+5 VFP
+5 VDC
–5 VDC
+12 VDC
–12 VDC
POWER3V
main memory
sockets
DIMM_D
DIMM_C
DIMM_B
DIMM_A
MICROPROCESSOR
+3.3 VDC
core VCC (+2.1 to +3.5 VDC)
system board
battery
+3.3 VDC
+5 VDC
+12 VDC
–12 VDC
+5 VDC
–5 VDC
+12 VDC
–12 VDC
battery (+3 VDC)
+3.3 VDC
+5 VFP
PWRGOOD
+12 VDC
+5 VFP
+5 VDC
+5 VDC
fuse
+5 VDC
+5 VDC
processor core
regulator
PCI4
through
PCI6
EISA1
through
EISA3
SRV_MGT
FAN
PANEL
SPKR
KYBD
MOUSE
System Overview 1-13