Technical Support

Seasonic Technical Support Team is willing to provide more information to our customers and users. The goal of this team is to introduce Seasonic products and power supply related technology in user-friendly language. Welcome your questions and comments.

We would encourage you to first read the FAQ section and check if you can find the answers to your questions. If you are unable to get the answers you need, please contact our Technical Support Team by sending an e-mail to support@seasonic.com.tw . For EU users, please contact: support@seasoniceu.com.


List of Frequently Asked Questions

Q 1
What's PFC? (Power Factor Correction)
Q 2
Why we need PFC?
Q 3
How can a PFC power supply save energy?
Q 4
What is harmonics?
Q 5
What countries are adopting the PFC requirement for electronic equipment?
Q 6
What's Active / Passive PFC?
Q 7
Why Active PFC prior than Passive PFC?
Q 8
How to tell if my Power supply is with Active PFC function or not?
Q 9
Which standards do Seasonic PFC products comply to?
Q10
What 's Seasonic S2FC (Smart & Silent Fan Control)?
Q11
How smart is S2FC?
Q12
How silent is S2FC?
Q13
What's the difference between Seasonic S2FCand other "noise killers"?
Q14
What is the advantage for Universal Input?
Q15
What's the difference between Manual Switch, Auto Switch and Universal Free Input?
Q16
What's power supply efficiency?
Q17
What' forward converter?
Q18
The difference between Forward converter and half bridge circuit design
Q19
What's Seasonic Dr. Cable?
Q20
What's Magic bracket?
Q21
The heavier the PSU the better?
Q22
Connector introduction.
Q23
Phased-out product replacement list
Q24
Why remove -5V?
Q25
Form Factor introduction.
Q26
120 mm fan vs 80 mm fan
Q27
120 mm fan vs 2*80 mm fan
Q28
What is the difference between Seasonic and other PFC models?
Q29
What is the difference between Seasonic and other non-PFC models?
Q30
Competitor's model has independent lines for all the voltages, while most power supplies have a shared 3.3V, +5V and another for the 12V line. Is this an advantage?
Q31
What's the normal tolerance of a power supply's output voltage?
Q32
What should I do when my power supply suddenly shuts down?
Q33
I am not sure if the fan speed of my S12 is normal. What's the normal fan speed of the S12?
Q34
What's the difference between S12-500/600 & SS-500/600HT models?
Q35
Is it ture that longer is better for the length of cables?
Q36
What are the benefits of a power supply that is compliant with the latest Intel ATX12 V2.0 guideline?
Q37
Will an older-version power supply fitted with a + 24-pin main power adapter work as well as the new version - ATX12V2.0 power supply?
Q38
How can I tell whether a power supply is compliant with the latest Intel ATX12V v2.0 design guide?
Q39
What are the advantages of the new design of twisted wires in the Seasonic S12 series?
Q40
What's the 80 Plus Energy Efficiency Certification?
Q41
Why does the Seasonic power supply have an empty pin in the main power connector?
Q42
Power Supply Jump Start Guideline- To check if the PSU is functional?
Q43
PC systems consume ever more +12V power, and some power supplies provide multiple +12V outputs. Does that mean a larger number of +12V output rails is better?
Q44
Why does the 3-pin fan connector on my Seasonic power supply have only two wires?
Q45
How to use the ¡§External Fan Control Output¡¨?
Q46
What is DC to DC converter design for 3.3V and 5V lines?

 
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