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PC Booting problem

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by arithemagnificent Apr 12, 2004 last reply May 9, 2004

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Hi,
I have a MB Biostar M6TWC,when I power on the computer, it start to work but no any components work including CPU fan.I've measured that the electric passes from MB.The led in front of the rams are lit.I've checked the twisted cables coming from the power button,reset,hd button, etc. Everything is Ok.
Also I've measured cpu fans pins it shows me 6V DC.But it must be 12V. When I checked again with taking the ground from the outside plug it shows 12V. I've tried to reset CMOS but I think I've failed. Can anyone help me ?Is CPU damaged? Thanx.

8 replies

by chris910 Apr 12, 2004

I would verify that the power supply is good first. swap it out with a known good unit. the power supply does not just supply voltages it also provides filters and regulation. to much noise or a voltage that is out of tolerance can keep the power from being turned on to all components.

by arithemagnificent Apr 12, 2004

Poster rated this answer.

by arithemagnificent Apr 13, 2004

I've realised that, CD-ROM and HD doesn't work as well.Help!Urgent!

by jeffcrenshaw Apr 13, 2004

It sounds like the power supply has a faulty ground. I would do as Chris910 said and swap it out for a known good unit, possibly replace the external power cord as well.