1 Copper

SOS my computer turns off after 2 seconds !! Troubleshooting

Please, I have a little problem with my desktop computer, when I press the start button it turns on (I hear the fan running / no beep) then the computer turns off before the bios starts,

I made the method of elimination always the same issue but when I remove the power connector 4 pins (2 yellow + 2 black) (look at the picture) in this case the pc remains lit but no bios appears
I have a doubt that it is thermal paw but I'm not sure help me please!20180813_042901.jpg

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6 Indium

Re: SOS my computer turns off after 2 seconds !! Troubleshoo

What is the specific model number?  Always included the model number on any initial problem post.  It can make a difference. 

I can't see your graphic, only a triangle (a forum issue) so I can't say what that power plug is for.

I am not a Dell Employee

Dell forum member since 2002

Dell Inspiron 15 - 5577 Laptop

Home Built Desktop PC with ASUS ROG Z170, i7 6700K CPU

Windows 10 64 bit Pro and Windows 10 Insider Program Beta Versions. SSD drives. Cakewalk by BandLab and Studio One 4.1 Recordng Studio Software.

Dell S2719dgf Monitor

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6 Thallium

Re: SOS my computer turns off after 2 seconds !! Troubleshoo

Bad power supply, Failed CPU fan, Loose heatsink.

It overheats and shuts down.


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