System Overview
1-11
.
Pin Assignments for the DC Power Connectors (Redundant
and Nonredundant Systems)
The system may have one (nonredundant) or two (redundant) power supplies. In
a nonredundant system, Dell recommends that the power supply be placed in
the bottom receptacle (power supply #2) for better weight distribution. See Fig-
ures 1-8 through 1-11 for pin assignments. For a redundant power supply
system, the only requirement is to install a second power supply.
Figure 1-7. Power Supply Connectors
Table 1-1. DC Voltage Ranges
Voltage
Range
Maximum Output
Current
1
+3.3 VDC
+3.135 to +3.465 VDC
30.0 A
+5 VDC
+4.90 to +5.25 VDC
60.0 A
+12 VDC
+11.40 to +12.60 VDC
30.0 A
–12 VDC
–10.80 to –13.20 VDC
0.3 A
–5 VDC
–4.50 to –5.50 VDC
0.3 A
+5 VFP
2
+4.85 to +5.36 VDC
0.25 A
1
Maximum continuous DC output power shall not exceed 500 W.
2
VFP (volts flea power) — sometimes called “standby power.”
P1
P2
P4
P3
P5
