new build wont boot up from cold

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10 Jul 2008
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suffolk
i have just built a new pc which from cold wont boot up but all the fans come on but no pic or anything and wont let me go into bios either .
but if i use a usb stick (bootable) i can get into bios and check boot sequence is ok and exit and save and it boots ok .

also once its booted up ok i can turn it off and it will start normally

any ideas why , i did think m/b battery but settings are how i left them or perhaps i should wipe windows of and start again
 
Last edited:
What motherboard do you have ?
its an msi b550 gaming edge wifi ,

i must have downloaded the update 4 times and the 5th time it worked in same usb port and on same pen so updated now so will see tomorrow if its worked maybe conflictind m_2 with other drives if not , will update later
 
Right fiddled tonight cleared cmos no change
I put new gpu in old machine that works OK
I put old gpu in new machine and that boots up OK so I have a conflict with new gpu and new build any ideas
 
Tried changing the GPU power cables?

Also it could be your GPU is heavy and its sagging, causing improper connections to the PCI-E slot. You probably need a GPU sag bracket.
When I used mun of PSU I plugged in GPU CPU and motherboard so not cables.
I have used it with computer laying down so shouldnt be sag
 
It's all working now after several days of stress it was a windows update that caused it to behave like that apparently in some cases it believe a USB keyboard is a pen drive and tries to boot that once I got in bios and disabled all boot options apart from my m2 carg it works ok so happy days

Thankyou for everyone that helped me along this journey much appreciated
 
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