No bios, just a black screen with the _ sign in the left corner.

svaart

Reputable
Aug 19, 2014
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4,510
So as the topic explains im facing a issue where i can't get in to the bios and windows 7 home premium 64 bit will not boot.
The only thing i get when i turn on the laptop is a black screen with the _ sign in the left corner of the screen.

I've had some issues with it the past few days with bluescreens.
Used bluescreen viewer and it seems it was some drivers, i reformatted the pc and reinstalled windows 7 home premium SP1 with a iso i got from Microsoft.

Left the laptop on yesterday after installing all the drivers to it could get the recent windows updates over night. When i went to bed it was stuck on a update but i just let it run overnight instead of turning it off. '

Yesterday when it was sorta working i ran memtest and disck check to see if the disc and ram of the computer were fine and according to the tests no errors were found.

Any idea what this can be?
 

svaart

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Aug 19, 2014
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4,510
Yes i made sure. On boot for bios i need to enter F2, F8/12 to choose boot option.
The keys needed to enter bios used to show on boot under the Acer logo, but now it doesn't say anymore.
 

svaart

Reputable
Aug 19, 2014
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4,510
Just now i tried to remove the battery and let it wait for 5 minutes. But no change.
Also tried booting without the battery and just with the power chord but all it did was keep restarting very fast paced.

So i would think the error is caused by a defect motherboard.
Anyone else got any thoughts?