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Table 3-13 Power supply specifications (continued)
Z220 SFF Z220 CMT Z420 Z620 Z820
Heat
dissipation,
maximum
(configuration
and software
dependent)
646.6 btu/hr
(163.0 kcal/
hr)
899.1 btu/hr
(226.6 kcal/
hr)
2354 btu/hr
(593.2 kcal/hr)
3139 btu/hr
(791 kcal/hr)
Max: 3335
btu/hr (840
kcal/hr)
Max1: 3878
btu/hr (977
kcal/hr)
Max2: 5002
btu/hr (1260
kcal/hr)
Power supply
fan
All fans are
variable speed
One fan,
92mm x 25mm
One fan,
92mm x 25mm
One fan,
92mm x 25mm
One fan,
92mm x 25mm
Two fans,
80mm x 25mm
Two fans,
80mm x
25mm
Built-in Self Test
LED
No Yes Yes Yes Yes Yes
Power
Consumption in
sleep mode (as
defined by
ENERGY STAR)
<3W <4W <6W <15W <15W <35W
80 PLUS
certification
Gold Gold Gold Gold Silver Gold
*The 1125W power supply can also supply 1275W of output power when the input voltage is greater
than 105V. If the input voltage is less than 105V, but greater than 90V for any reason, the maximum
power that can be drawn is 1125W. An uninterruptible power supply (UPS) is highly recommended if
1275W output power is desired.
108 Chapter 3 Component Replacement Information and Guidelines