Select Language RussianSpanishTraditional ChineseEnglishSimplify ChineseKorean Member Center   About Us Products News Support Interactive Where to Buy Contact Us Quote for Partner   Home   >   Support   >    Q&A     Advanced Search Support Download Center Q&A Technical Support Form     Q&A     01   What are the differences between active PFC and passive PFC?     02   What is PFC?     03   Why does the product have no -5V output?     04   How to test the power source?     05   What is ATX 12V Version 2.0 power source regulation?     06   How to select a power supply?     07   What are the differences between manual voltage switch, single voltage, and full range voltage?     08   The advantages of full range voltage?     09   How long is the warranty of Seventeam’s products?     10   Seventeam’s ASM technology     11   Why does the humming sound disappear in Seventeam’s ST-300/350BKV?     12   Explanation of the humming sound of BKV series during powering up and shutting down.     13   What is OTP?     14   What is UVP?     15   What is OPP?     16   What is OCP?     17   What is OVP?     18   Introduction of safety regulation of each country     19   What is harmonic wave?     20   How PFC saves more energy?     21   What is 80PLUS Certificate?     22   What is Conversion Efficiency?     23   What is NVIDIA SLI-Ready Certificate?     24   What is RoHs ?     25   Output voltage range of Switching power supply     SEVENTEAM ELECTRONICS CO., LTD. Copyright(C)2007 All Rights Reserved. Headquarters：2F, No. 35, Lane 167, Sec. 1, Tung Ho E. St, Taipei, Taiwan Tel:+886-2-2882-9050 Fax:+886-2-2882-6230~1. Factory：Bei An Industrial Park, Huang Jiang, Dong Guan City, Guang Dong Province, China Tel:+86-769-8362 1007 Fax:+86-769-8362 1006