Question

PC Boot Process Not Working

So a year ago my Dell desktop tower was working normally; then, after being off and unplugged for about three weeks, I tried to start it up, and the boot sequence wasn't loading properly. I tried to do it from UEFI, then Classic, and back, to no avail. I even tried downloading Windows 10 onto a flash drive, and tried reloading it, and came up empty there. I'm thinking of taking it to a repair place to get looked at. Is there any way I can fix this on my own? Thanks!

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Comments
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Answer
Re: not booting

I'd start with replacing the small battery (a CR2032 or something like that) on the motherboard.

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Agree.

The CMOS battery is cheap and worth trying before an expensive repair counter.
Dafydd.

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Update

I just put in a new battery. My brother cannibalized the desktop's video card for his own computer, so I'm thinking of putting in a new one before going any further. How much do they go for?

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Re: video card

Video cards can be quite expensive: the first one shown by newegg.com is $2499.99 (but has free shipping). The cheapest is a refurbished one for $9.49.

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are you still in testing phase?

If so, then get a cheap card that will fit a slot (even PCI) and use that first. I keep one here for testing myself.

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Answer
Update

Thought I'd bring y'all up to speed. I replaced the battery, and am still having the same problem. What should I do from here? (I let it load normally and it then says "no bootable devices.")

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Get your card back off your bro?

Make it his problem not yours.
Dafydd.

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Makes No DIfference

It was doing it even before that happened, and besides, he's away from the house for weeks at a time, so he might not notice or even care. I saw a video on how to fix the "no boot device" problem and it demonstrating resetting the thing to factory settings, for what that's worth.

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Speccy.
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Answer
Can you get to the BIOS?

Is the HDD showing there?

Do other OSes run like Linux (which we never have to install, etc.)?

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OSs

No. Only Windows 10 is running.

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If W10 is running, what's broken?
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Answer
Paint a picture

Don't assume members can see your pc or what your doing.
You start with the machine won't boot.
Then there is something about uefi and classic.
Then something about downloading w10 to a flash drive.
Then something about your brother took your video card.
Then something about replacing the cmos battery.

Start from the beginning and go step by step.

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Whatever

All right, all right, all right. Here we go:

I shut down my system before leaving for school
My family use it for something while I'm away
I return to find everything unplugged, proceed to replug everything because I want to play my favorite video game, discover boot issue.
I take to the internet to try and diagnose the problem; on the Dell website, someone recommends changing the CMOS battery
Someone who also plays said video game recommends booting W10 from a flash drive--I do that to no effect.

That's everything in the order it happened. Happy?

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No

Somehow your able to get a display on a machine with no gpu.
Somehow your able to create a w10 usb stick on a machine that does not boot.
Then you say booting the flash stick to no effect.
I suppose no effect means something to you but it's a mystery to everyone else.

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