new build wont boot up from cold

barbel · 6 Dec 2021 at 16:38

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

mickyflinn · 6 Dec 2021 at 18:29

Update the motherboard bios.

barbel · 6 Dec 2021 at 21:09

mickyflinn said:
Update the motherboard bios.

i have tried that now and for some reason it wont or cant see the file in m flash and i have checked i have the right one several times

mickyflinn · 6 Dec 2021 at 21:18

barbel said:
i have tried that now and for some reason it wont or cant see the file in m flash and i have checked i have the right one several times

Did you format the usb drive to fat 32 , some bios files need renaming check the manufacturers guide for bios flashing.

barbel · 6 Dec 2021 at 21:32

mickyflinn said:
Did you format the usb drive to fat 32 , some bios files need renaming check the manufacturers guide for bios flashing.

I have done all that yes scratching head reakky

mickyflinn · 6 Dec 2021 at 21:37

barbel said:
I have done all that yes scratching head reakky

What motherboard do you have ?

barbel · 6 Dec 2021 at 22:10

mickyflinn said:
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

barbel · 6 Dec 2021 at 22:47

mickyflinn said:
What motherboard do you have ?

Right after bios update I shut down computer left it for 10 mins and restarted OK but when I tried again in 30 mins it won't start it doesn't even get to bios post

mickyflinn · 6 Dec 2021 at 22:56

barbel said:
Right after bios update I shut down computer left it for 10 mins and restarted OK but when I tried again in 30 mins it won't start it doesn't even get to bios post

Disconect power from the wall and use the clear cmos jumper on the motherboard to clear bios, Leave for 10 mins put everything back and try.

I'm off to bed so i will reply in the morning but others may help

mickyflinn · 7 Dec 2021 at 09:43

@barbel any progress ?

HangTime · 7 Dec 2021 at 14:12

barbel said:
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

I have the same issue with BIOS files. I extract them to a drive and frequently they are not recognised. Sometimes takes a couple of downloads to get it working. I thought maybe it was just some dodgy thing with the Gigabyte website but I've now had the same on MSI.

I think I usually have more success if I extract using 7zip intead of Windows compressed folder tools, maybe the latter has a tendency to corrupt files.

barbel · 7 Dec 2021 at 16:21

mickyflinn said:
@barbel any progress ?

Will try again tonight going to put in an old SD with windows on and see if it boots

barbel · 7 Dec 2021 at 19:24

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

Quartz · 7 Dec 2021 at 19:42

Which version of the Straight Power 11 do you have? I wonder if it is insufficient.

barbel · 7 Dec 2021 at 20:35

It's the 1000w version

Quartz said:
Which version of the Straight Power 11 do you have? I wonder if it is insufficient.

It's the 1000w version

barbel · 7 Dec 2021 at 21:09

I have just tried my old psu which is a 1000w also and no go so it's a conflict with something

barbel · 7 Dec 2021 at 22:17

boabs said:
reseat the cpu

But the computer works OK with my old gpu and starts shuts down and restarts OK it's only when I put in the new gpu

Quartz · 7 Dec 2021 at 22:29

barbel said:
It's the 1000w version

There was a very similar thread just recently and it turned out that the new GPU wasn't sitting correctly in the slot. Double-check that.

mickyflinn · 7 Dec 2021 at 22:30

barbel said:
But the computer works OK with my old gpu and starts shuts down and restarts OK it's only when I put in the new gpu

Try the new gpu in the lower slot.

Syore · 7 Dec 2021 at 22:38

barbel said:
But the computer works OK with my old gpu and starts shuts down and restarts OK it's only when I put in the new gpu

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.