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Discussion Starter · #1 · (Edited)
Well, here’s a good one.
I have a Dell XPS 18 1810 Windows 10 that will not boot.
I left it for three months.
Un-plugged and turned off.
When I tried to turn it on I was greeted with a host of warnings and options to solve the problem.
I tried all the options but could not boot.
I concluded two things.
1) It could not find the OS.
2) There was something wrong with the “Boot Potions”.
I tried to reset the BIOS.
Big problems trying to do that.

I figure the CMOS battery is bad.
I will attend to that as soon as I can get a battery.

However there is a strange thing that is going on and I would like some advice.
The only way to turn it off is with the power on/off switch.
Well, when I turn it off using the power button, the damn thing restarts a few seconds after.
Again:
Well, when I turn it off using the power button, the damn thing restarts a few seconds after.

What is going on here?

Thanks,
Joe
 

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The CMOS battery is probably not Bad.
Your HDD in the computer may be failing or has failed.
Did you have the Restarting issues Before you reset the Bios? If not, that could be that issue.
Restart the computer and press F12. Do the Dell Diagnostics, This will tell you the health of the HDD, RAM and Video.
 

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Discussion Starter · #3 ·
Thanks.
Well, the problem now is that it is not even getting to the splash screen. (Post)
When it restarts, the screen remains blank.
I can hear what I think is the DH spinning.
Could be a fan.
I can't get into the BIOS.
When I get a CMOS battery, I will open it and pull the RAM, hard drive and remove the CMOS battery.
I will allow the CMOS to "reset" for 30 minutes and install the new battery.
Hopefully, while the CMOS battery is removed I can turn the computer off and it will stay off.
What is interesting is that I have a second bootable HD in the system. (mSata)
Normally when I get into the boot options with F12, I can select the second drive and boot from that.
I could not do that when the problem first started.
The Boot options did not present the usual options.
 

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If you remove the mSATA and the HDD the computer will probably POST.
If not, You can Unplug the computers power cord,. Press the power button once to release any stored electricity. If you have a jumper, you can Clear the CMOS. Which will definitely allow the computer to POST.
If not, Remove the CMOS battery. Let sit for a few minutes, it doesn't have to be 30. Then replace it, this should reset the BIOS to defaults and it should POST. Next I would put in just the mSATA and see how that goes. If it boots to that, then I would attach the HDD to another computer via a USB Adapter with it's own power adapter. Once powered up, put your ear next to the drive and see if it making any scraping or clicking noises, or if it is spinning up and then spinning down which would mean it has failed and may have been the thing that is causing the problems.
 

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Discussion Starter · #5 ·
Thanks.
That's pretty much what I plan to do.
The mSATA should be fine and it is a clone of the main Hard Drive.
There is one thing I forgot to mention in the first post.
When I tried to start after the three month laps, there was a message about the system time and/or date.
At that point I went into the bios to set the Time/Date.
It had some date and time in 2009.
That's why I am looking for a CMOS battery.
I have external cases to put the Hard Drive into in order to check it.
I doubt it has jumpers for the CMOS since it is built more like a laptop.

This is a Dell XPS 18.
It is like an 18" Tablet with an internal battery so it is portable.
Unplugging the power cord leaves it on battery power.
I will need to disconnect the battery to power it off and stop it turning on by itself.
If there is some setting in the BIOS that is causing it to turn on after a forced shutdown, I would sure like to know where to look.
I will follow up as soon as I get the CMOS battery.
 

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CMOS batteries can be found in places that fix watches, or electronics. In the US they are in most Drug stores.
If you reset the system date and time and it reverts back to 2009, then you know the CMOS battery is bad. I have started old laptops that had a dead battery and were not plugged in for a long time and the time and date needed to be reset. But once they were reset and there was power, then the time never varied.
 

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Discussion Starter · #7 ·
Thanks. I'll keep that in mind.
 

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Sounds like it's going into Sleep Mode instead of powering off. Check to see if somehow the the on-off button got assigned Sleep when button is pressed instead of shut down.
 

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Discussion Starter · #9 ·
Some progress.
Remember, I got to a point where the computer would not turn on.
See the end of this.
I opened it up and did three things.
I took out the hard drive and it tested OK.
I disconnected the CMOS battery and the main battery.
Left it for a while.
Then I put everything back together and left it charging for 24 hours.
Powered it up and it turned on but the original problem came back.
It could not find the OS.
I went into the BIOS and tried every combination of settings I could think of.
No change.
I then tried a trick I read about.
Unfortunately I did not take photos of the various screens.
The first thing that would happen is a screen stating that a boot device could not be found and it was going to restart.
It would then go into the Autofix process.
When that failed, a screen would come up with three choices.
Go to Windows.
Troubleshoot.
Shut down.
I went into Troubleshoot and Advanced.
I then selected change startup options. Restart.
I then selected "Enable Safe mode" #4
It booted into Safe mode.
I then did a restart and it Booted normally.
Several restarts and all seemed normal.
There is another problem.
When I shut down and attempt to turn on with the power button, it starts and and the fan runs but the screen does not come on.
When it is placed face down and moved around, the screen comes on.
Something is loose.
I'm getting there,
 

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When I shut down and attempt to turn on with the power button, it starts and and the fan runs but the screen does not come on.
When it is placed face down and moved around, the screen comes on.
In the process of removing the batteries and the HDD you may have loosened the video cable to the motherboard. Check your connections.
 

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Discussion Starter · #11 ·
Well, I do believe I got it going.
Fiddled with all the connections near the Battery connection.
Shut down and restarted several times and all is well.

Now the keyboard is messing with my head.
Wireless keyboard and mouse.

Press 6 and I get z6.
Press "space bar" and nothing.
Press y or v and I get yv.
Several other keys are crazy.
I'll have to Post a new Discussion in Hardware.

The receiver is housed inside the case in a special USB port.
I'll close up when I fix the problem or buy a new keyboard/mouse.
I think this can be marked as Solved. (y)
Thanks to all for the help.
 

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Discussion Starter · #13 ·
Thanks spunk.funk
New batteries did not work.

New Keyboard and now all is well and normal.
Problem solved.
By-the-way, I had to replace the receiver inside the case with the one that came with the new keyboard/mouse.
I was able to get the same model kb but the receivers were not compatible.
Also of interest.
I have not yet replacer the CMOS battery and it is working normally.
I still have no idea why it failed in the first instance.
I will be replacing the CMOS battery soon to be safe but setting up the BIOS is such a pain.
 

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CMOS Battery should last several years. If it is working and the clock is not loosing time, it may not need to be replaced. But it is always a good idea to replace it if you can.
 
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