TNN 500A
www.zalman.co.kr www.zalmanusa.com
6
2.4 No-Fan Power Supply
The PSU in the TNN 500A employs Multi PCB Transformer
technology, high-efficiency FETs, and Heat Source Contact
technology to pump out enough power (300W/sec) without
any help from an active cooling device. The heat from the
PSU components is transferred to the heatsink case through
an aluminum panel, which is in direct contact with the
heatsink case. This PSU features a lifespan of 50,000 hours
and an impressive 78% AC/DC conversion efficiency, which
is about 10% higher than most power supplies.
2.5 Complete Silence
Since the TNN 500A cooling solution does not utilize fans, the system does not produce any noise. In addition,
the sturdy aluminum case (5 to 7mm thick) blocks HDD noise to achieve completely silent computing.
※
Note :
TNN500A’s noise level is below 20dB and cannot be measured. (The anechoic room used by
ZALMAN has an ambient noise level of 20dB.)
※
The data above was measured according to the Intel ATX Ver.2.03/ATX12V Power Supply specifications.
The above data was obtained by connecting a bypass made of a 0.1
μ
F ceramic capacitor and a 10
μ
F
electrolytic capacitor at each of the DC outputs and measuring with an oscilloscope with an input
impedance of 1M
Ω
at a frequency of 20MHz. The waveforms may vary depending on measurement
conditions.
2.6 Electricity Savings
Since the TNN 500A is equipped with a highly efficient power supply unit and does not utilize fans, it uses
10 to 15% less power than a normal computer with the same configuration. When a user upgrades to a
TNN 500A system, power consumption can be reduced by 20 to 30W/sec. About $200 to $700 can be
saved (in Korea, 24hrs/day usage) in 5 years depending on the power usage of the user.
■
DC Output Ripple and Noise Measurement Graphs
a)+5VSB
(V
: 45.2mVp-p)
R&N
b)+3.3VDC
(V
: 44.8mVp-p)
R&N
c)+5VDC
(V
: 31.2mVp-p)
R&N
d)+12VDC
(V
: 54mVp-p)
R&N
e)-12VDC
(V
: 13.2mVp-p)
R&N
f)-5VDC
(V
: 43.2mVp-p)
R&N
