I have tried multiple know nice and keyboards in all of the USB ports in the device. Nothing. I am not able to use the mouse or keyboard in the brief seconds that the device is on. I Am not able to get to bios or the ePSA diagnostics
I'd start by disconnecting everything except a known good mouse, keyboard and monitor. Unplug the machine and hold the power button in for 30-60 seconds. Plug power back in and try booting. If still doesn't start take a good look at the mobo for any burnt spots, bulging capacitors etc.
One other thing I forgot to mention was to check the usb ports the old keyboard/mouse were plugged into and make sure nothing broke off in there. Had a machine once that after removing a thumbdrive the thumbdrive broke and wasn't noticed. It was shorting the port and causing power issues. Weird because it didn't devlop until about 1 week after being removed..
What color is power button and is it steady or blinking when PC won't boot? Is the green PSU LED on the back of the PC near the mains socket steady or blinking?
Try clearing BIOS: 1. Power off and unplug 2. Press/hold power button for ~15 sec 3. Open case and remove motherboard battery (See Service Manual for details) 4. Press/hold power button for ~30 sec 5. Reinstall battery (Time for a fresh CR2032 3-volt battery?) 6. Close up and connect only mouse, monitor and key Reboot
I followed you steps. I held the power button. Then changed the battery. Then held the power button again. Then plugged in mouse, keyboard and I now have an error message that says "time-of-day not set - please run SETUP program
Imvalid configuration information - please run SETUP program.
Alert! Keyboard not found.
I am still not able to use my mouse and keyboard. My keyboard led's are on but no response. Mouse led's don't show and the mouse doesn't work
I followed you steps. I held the power button. Then changed the battery. Then held the power button again. Then plugged in mouse, keyboard and I now have an error message that says "time-of-day not set - please run SETUP program
Imvalid configuration information - please run SETUP program.
Alert! Keyboard not found.
I am still not able to use my mouse and keyboard. My keyboard led's are on but no response. Mouse led's don't show and the mouse doesn't work
That date/time message is not unexpected when trying to clear BIOS. You just have to be able to get into BIOS to reset them now.
Did you do things in the right order? You should have (1) held power button, (2) removed old battery, (3) held power button, (4) replaced battery last. The object is to try to clear the keyboard error by pressing/holding the power button with nobattery installed, old or new.
Have you tried a different rear USB2 port(s) for the keyboard?
Do you have a USB2 hub with its own external power brick? Turn PC off and plug the hub into a rear USB2 port. Connect the hub's power brick to a working wall outlet. Connect mouse and keyboard to the USB hub and then boot the PC. If you're lucky things will work. And a powered hub will be a lot cheaper than a new motherboard.
If you don't have a powered USB2 hub, maybe you can borrow one or buy one that can be easily returned if it doesn't help with this problem. :Wink:
When the PC does not start therre is no light kn the power button or the green light kn the back. It is as if it is dead. It started working after a few hours and is now back to the screen I mentioned before. Wasn't the battery in the motherboard. But when the computer is on the green led is on and not flashing. The power button is doing the same. No flashing.
I started to have similar problem a week or two ago. During boot BIOS alerts "Keyboard not found!". In the beginning there was just one retry, but number of retries seem to increase.
I still haven't changed the motherboard battery. Moving the keyboard to a powered USB hub does not solve theproblem.
FelixNavidad
6 Posts
0
February 25th, 2019 13:00
I have tried multiple know nice and keyboards in all of the USB ports in the device. Nothing. I am not able to use the mouse or keyboard in the brief seconds that the device is on. I Am not able to get to bios or the ePSA diagnostics
Tesla1856
8 Wizard
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17.4K Posts
0
February 25th, 2019 13:00
Connect a (very plain and known good) WIRED USB keyboard and mouse to the USB ports on the back of machine.
Do the keyboard and mouse work in BIOS and ePSA Diagnostics?
68cutlass
192 Posts
0
February 25th, 2019 13:00
I'd start by disconnecting everything except a known good mouse, keyboard and monitor. Unplug the machine and hold the power button in for 30-60 seconds. Plug power back in and try booting. If still doesn't start take a good look at the mobo for any burnt spots, bulging capacitors etc.
Tesla1856
8 Wizard
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17.4K Posts
0
February 25th, 2019 14:00
Then it sounds like a bad motherboard. This includes the BIOS (and many other things).
68cutlass
192 Posts
0
February 25th, 2019 15:00
One other thing I forgot to mention was to check the usb ports the old keyboard/mouse were plugged into and make sure nothing broke off in there. Had a machine once that after removing a thumbdrive the thumbdrive broke and wasn't noticed. It was shorting the port and causing power issues. Weird because it didn't devlop until about 1 week after being removed..
FelixNavidad
6 Posts
0
February 26th, 2019 01:00
What do you suggest as a solution? New motherboard? or is it better to get a new computer? or can I swap the motherboard from an older pc onto it?
RoHe
10 Elder
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45.2K Posts
0
February 27th, 2019 19:00
Try clearing BIOS:
1. Power off and unplug
2. Press/hold power button for ~15 sec
3. Open case and remove motherboard battery (See Service Manual for details)
4. Press/hold power button for ~30 sec
5. Reinstall battery (Time for a fresh CR2032 3-volt battery?)
6. Close up and connect only mouse, monitor and key
Reboot
Does that help?
FelixNavidad
6 Posts
0
February 28th, 2019 10:00
I followed you steps. I held the power button. Then changed the battery. Then held the power button again. Then plugged in mouse, keyboard and I now have an error message that says "time-of-day not set - please run SETUP program
Imvalid configuration information - please run SETUP program.
Alert! Keyboard not found.
I am still not able to use my mouse and keyboard. My keyboard led's are on but no response. Mouse led's don't show and the mouse doesn't work
RoHe
10 Elder
•
45.2K Posts
0
February 28th, 2019 11:00
That date/time message is not unexpected when trying to clear BIOS. You just have to be able to get into BIOS to reset them now.
Did you do things in the right order? You should have (1) held power button, (2) removed old battery, (3) held power button, (4) replaced battery last. The object is to try to clear the keyboard error by pressing/holding the power button with no battery installed, old or new.
Have you tried a different rear USB2 port(s) for the keyboard?
Do you have a USB2 hub with its own external power brick? Turn PC off and plug the hub into a rear USB2 port. Connect the hub's power brick to a working wall outlet. Connect mouse and keyboard to the USB hub and then boot the PC. If you're lucky things will work. And a powered hub will be a lot cheaper than a new motherboard.
If you don't have a powered USB2 hub, maybe you can borrow one or buy one that can be easily returned if it doesn't help with this problem. :Wink:
RoHe
10 Elder
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45.2K Posts
0
February 28th, 2019 11:00
And what about these questions:
What color is power button and is it steady or blinking when PC won't boot?
Is the PSU LED on the back of the PC near the mains socket green, and steady or blinking?
FelixNavidad
6 Posts
0
February 28th, 2019 12:00
RoHe
10 Elder
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45.2K Posts
0
February 28th, 2019 15:00
Try the powered USB hub...
karielo
1 Message
0
October 26th, 2019 06:00
Has this problem been resolved?
I started to have similar problem a week or two ago. During boot BIOS alerts "Keyboard not found!". In the beginning there was just one retry, but number of retries seem to increase.
I still haven't changed the motherboard battery. Moving the keyboard to a powered USB hub does not solve theproblem.
Dell XPS 8900 System BIOS is 2.6.1.
RoHe
10 Elder
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45.2K Posts
0
October 26th, 2019 13:00
@karielo - Change the motherboard battery, if nothing else than to rule it out. It's only ~$2 for a CR2032 3-volt coin cell battery.