Go into the BIOS setup (f2 at powerup). If the AC adapter isn't listed with its wattage (i.e., it shows "unknown" or "not present") you have a hardware problem, not a BIOS problem.
In that case, try another Dell adapter - if that fails to be recognized, replace the power jack.
I checked that and here is what it is happening, little bit weird:
when I plug in the adapter and the computer is off and then turn on the computer it will be detected under the BIOS with the wattage and it will be charging the battery under windows normally. At this point, as soon as I unplug the power adapter and plug it back in (while windows is up), it will show not charging and when I reboot to BIOS it will be back to "unknown". I can make it charge again (with being recognized under the BIOS) by shutting down the computer, pulling the battery out and put everything back in.
That's why I suspected it is the wrong BIOS version that is causing it... as it never happened before I flashed the BIOS.
Any ways of applying the correct bios back to the motherboard?
If the system is working as is, I wouldn't even risk trying. Try a new Dell adapter first - if that does not fix the problem, replace the power jack in the system. This isn't a BIOS problem - it's a hardware problem.
I tried a new adapter and it did work. You are right, it wasn't a BIOS issue.. It just happened at the time when I upgraded the bios.. Thanks for your help!
ejn63
9 Legend
•
87.5K Posts
1
August 11th, 2012 17:00
Go into the BIOS setup (f2 at powerup). If the AC adapter isn't listed with its wattage (i.e., it shows "unknown" or "not present") you have a hardware problem, not a BIOS problem.
In that case, try another Dell adapter - if that fails to be recognized, replace the power jack.
Themann
10 Posts
0
August 11th, 2012 17:00
I also tried deleting "DELLBIOS" folder from registry.
Themann
10 Posts
0
August 11th, 2012 18:00
Ejn63,
Thanks for your reply!
I checked that and here is what it is happening, little bit weird:
when I plug in the adapter and the computer is off and then turn on the computer it will be detected under the BIOS with the wattage and it will be charging the battery under windows normally. At this point, as soon as I unplug the power adapter and plug it back in (while windows is up), it will show not charging and when I reboot to BIOS it will be back to "unknown". I can make it charge again (with being recognized under the BIOS) by shutting down the computer, pulling the battery out and put everything back in.
That's why I suspected it is the wrong BIOS version that is causing it... as it never happened before I flashed the BIOS.
Any ways of applying the correct bios back to the motherboard?
ejn63
9 Legend
•
87.5K Posts
0
August 11th, 2012 18:00
If the system is working as is, I wouldn't even risk trying. Try a new Dell adapter first - if that does not fix the problem, replace the power jack in the system. This isn't a BIOS problem - it's a hardware problem.
Themann
10 Posts
0
August 12th, 2012 03:00
I will try another adapter and will take it from there. Thanks
Themann
10 Posts
1
August 13th, 2012 23:00
I tried a new adapter and it did work. You are right, it wasn't a BIOS issue.. It just happened at the time when I upgraded the bios.. Thanks for your help!