I have an Inspiron 5748, and recently I've been having multiple issues. When I don't use the laptop for a couple of hours, and try to bring it out of sleep mode, I only get a black screen, nothing responds. No buttons work, other than holding down the power, til I hear the little beep indicating hard shut down. And this is where things get really interesting.
Sometimes, when I try to power up, I get nothing but 8 loud beeps. Sometimes, I get the Dell screen, then I get the Windows screen, and then it goes black. Once in awhile, it flashes a kind of whitish color, and stops there. When it doesn't boot up all the way, it just sits on this screen, either black or greyish white, and never boots further. I can hard reset, and sometimes it comes up, sometimes it doesn't. It usually takes several hard reboots before I can get it to boot up all the way.
It usually boots fine into safe mode.
I've run all the system tests, from the boot screen, to the ones in the control panel. Everything passes, nothing gives me any errors. Hard drive, memory, display, processors, everything passes.
I've did a system restore (twice), and it's still doing the same thing. Right now, it's about as fresh as Windows can be, I've only installed antivirus and Dropbox, everything else is as it is after a factory reset, other than Windows updates and updates from the Dell site, which I've done.
I've researched, and the 8 beeps seems to indicate LCD failure, but as it boots into safe mode, and, at this moment, it's working in normal mode, this doesn't seem to be the problem.
I'm running out of ideas of what to try, is it time to scrap my laptop?