DELL™ OPTIPLEX™ 780 TECHNICAL GUIDEBOOK V2.0
17
POWER
N O T E : T h e s e f o r m f a c t o r s u t i l i z e a m o r e e f f i c i e n t Ac t i v e P o w e r F a c t o r C o r r e c t i o n ( A P F C ) p ow e r s u p p l y. D e l l
r e c o m m e n d s o n l y U n i v e r s a l P ow e r S u p p l i e s ( U P S ) b a s e d o n S i n e W a ve o u t p u t f o r AP F C P S U s , n o t a n a p p r o x i -
m a t i o n o f a S i n e W a ve , S q u a r e W a ve , o r q u a s i - S q u a r e W a ve . I f yo u h a v e q u e s t i o n s , p l e a s e c o n t a c t t h e m a n u -
f a c t u r e t o c o n f i r m t h e o u t p u t t y p e .
MT
APFC EPA
DT
APFC EPA
SFF
APFC EPA
USFF
EPA
Power Supply Watt-
age
305W
255W High
Efficiency
255W
255 W High
Efficiency
235W
235W High
Efficiency
180W High
Efficiency
AC input Voltage
Range
90 –
264Vac
90 –
264Vac
90 –
264Vac
90 –
264Vac
90 –
264Vac
90 –
264Vac
90 – 264Vac
AC input current (low
ac range/high AC
range)
5.6A / 2.8A
3.6A / 1.8A
5.0A / 2.5A
4.0A / 2.0A
4.5A /
2.25A
3.5A /
1.75A
2.6A / 1.3A
AC input Frequency
47HZ /
63HZ
47HZ /
63HZ
47HZ /
63HZ
47HZ /
63HZ
47HZ /
63HZ
47HZ /
63HZ
47 – 63 Hz
AC holdup time
(
80%
load)
16MSEC
16MSEC
16MSEC
16MSEC
16MSEC
16MSEC
16 ms
Average Efficiency
(Energy Star 5.0 Com-
pliant)
87 – 90 –
87% @ 20
– 50 –
100% load
87 – 90 –
87% @ 20
– 50 –
100% load
87 – 90 –
87% @ 20
– 50 –
100% load
87 – 90 –
87% @ 20 –
50 – 100%
load
Typical Efficiency
(
Active
PFC)
65%
65%
65%
N/A
DC parameters
+3.3v output
8.0A
8.0A
7.0 A
7.0 A
5A
5A
N/A
+5.0v output
16A
16A
15A
15A
16A
16A
N/A
+12.0v output
12vA/15A;
12VB/10A
12VA/13A;
12VB/7A
18A
18A
17A
17A
+12VA -
9.0 A &
+12VB - 7.0
A
Note: +12VB
Rated at
0.4A when in
Standby
Mode.
+5.0v auxiliary output
4.0A
4.0A
4.0
4.0
4.0A
4.0A
N/A
-12.0v output
0.5A
0.5A
0.5A
0.5A
0.5A
0.5A
0.1 A
Max total power
305W
255W
255W
255W
235W
235W
180W
Max co3.3v /
+5.0v power
80W
80W
91.5W
91.5W
88W
88W
N/A
Max combined 12.0v
power (note: only if
more than one 12v rail)
240W
240W
N/A
N/A
N/A
N/A
180W
BTUs/h (based on PSU
max wattage)
1603 BTU
1000 BTU
1341 BTU
1000 BTU
1235 BTU
921 BTU
723 BTU
3.3v CMOS battery (type and estimated battery life)
Power Supply Fan
80*25mm
80*25mm
92*25mm
92*25mm
80*15mm
80*15mm
N/A
Compliance:
1watt requirement
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Blue Angel Compliant
Select
Select
Select
Select
Select
Select
Select
Climate Savers /
80Plus Compliant
No
Yes
No
Yes
No
Yes
Yes
FEMP (CECP) Standby
Power Compliant
No
Yes
No
Yes
No
Yes
Yes
