asked on

Resetting CMOS/BIOS through jumpers

Hello experts,

I've heard you can reset your cmos/bios by changing some jumpers on your motherboard.
I opened my notebook but I can't find what I'm looking for.

Could someone tell me where those jumpers I need to change are?

I've attached the schematics and a picture of my machine's inside, near the battery since I've heard that's where those jumpers would have to be?

Thanks in advance.
1.jpg
2.jpg
DSC01861.JPG

andrew_aj1

Modern notebooks do not have jumpers to reset the bios. Some notebooks you cannot reset the bios without sending it to the manufacture. You can try disconnecting the battery from the motherboard for a few minutes to see if your bios gets reset to defaults.
I hope this helps. Good luck.

andrew_aj1

I forgot to mention that the bios in most desktops can be reset by a jumper, but this is not true for most notebooks.

Good luck.

ASKER CERTIFIED SOLUTION

kory1006

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

briandunkle

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

andrew_aj1

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Snapples

ASKER

Thank you for the quick replies.
One question though, is it enough to disconnect the cables from the battery going to the motherboard or do I need to remove it completely?

andrew_aj1

Just disconnect the cable. The battery is most likely glued to the mainboard to keep it from moving.
Good luck.

Snapples

ASKER

Alright thank you. I tried it right after unplugging the battery but that didn't work.
I'll keep the battery unplugged for a while and try again.

SOLUTION

rid

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Snapples

ASKER

That's probably the reason why the above methods ended up not working for me I'm afraid.
I can't get past the POST so I'm not sure how to flash the bios.
I found this link to flash the bios even if you can't boot anymore as in my case:
http://macles.blogspot.com/2008/08/acer-aspire-one-bios-recovery.html

I tried the same thing with the latest bios version for my system but I think I'm doing something wrong. The system gets power, then turns itself off immediately, then starts by itself but then I get the same problem as always. Any ideas?

SOLUTION

nobus

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

rid

You should address the failed POST situation. Try removing the hard drive, the optical unit and all (ALL!) peripherals; if more than one stick of RAM inside, take one out. See if that makes any difference. Take out all RAM, see if the system beeps at power-on (it should normally do that if no RAM present). If not, the CPU or mobo may be shot. Verify that your main battery is charged and that your AC adapter is OK, so that this doesn't end up being a power issue.
/RID

Snapples

ASKER

Thanks for the help guys, I'm sure your solutions would have worked in another case but after trying everything it looks like I have no other choise but to send my notebook to Acer to be repaired.