Locked BIOS

[Niikoolaaa]

Can someone tell me where is the Jumper location for resseting bios password. I tried everything, programs, cmd, cmos battery, all combination but nothing. I thing that is enabled stringent security. Plese help me. I open the notebook, now it is in part. I would love to try to reset with jumper, if that don't work, I must replace bios chip. Thank you!!

[Paul_Tikkanen]

Hi:

If stringent security was set, your only option would be to either replace the motherboard or BIOS chip.

There are no jumpers.  Only on HP business desktops are there jumpers.

If stringent security is set on an HP business desktop, then removing the jumper can't clear the P/W anyway.

You would have to replace the BIOS chip or motherboard in that case as well.

[Niikoolaaa]

Are you 100% sure? Because I saw that on some laptops (toshiba) there is a jumper for reset bios

[iomare]

Hi,

If stringent security is enabled, HP says that the board needs to be replaced in the service manual.

http://h20565.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c01035651

page 1-4

David

[Paul_Tikkanen]

Hi, @Niikoolaaa :

I am 100% sure.

I've owned 2 nc6400's in the past, and our work used to have hundreds of them for corporate use (which is why I decided to buy off lease ones because I liked them so much).

I've seen them taken completely apart, and there are no jumpers of any kind on the motherboard.

[Niikoolaaa]

Okey. Thank you sou much! So I must replace a bios chip. Where is the exact location of bios on motherboard?

[Paul_Tikkanen]

You're very welcome.

Unfortunately, I have no idea.

Most folks just replace the motherboard because replacing the BIOS chip requires expert soldering skills and who even knows where you can find unlocked BIOS chips for that old notebook anymore?

[Niikoolaaa]

I am from Serbia, bios chip cost 10euro in Pančevo.

[Niikoolaaa]

I have two more questions.
1. Can I get the SMC.bin from HP to unlock my bios?
2. Why I can't power on my nc6400 with ac adapter without insterting battery?

[Paul_Tikkanen]

Hi:

For question #1, you would have to contact HP technical support.  This is a peer to peer forum.  HP maintains no official presence here.

http://www8.hp.com/rs/sr/contact-hp/contact.html

Question # 2:  I am not a PC repair tech by trade or training. 

Unfortunately, I would have no idea why you can't power on the PC without the battery.

My nc6400's ran fine with the battery removed and the A/C adapter plugged in.

Is it possible the A/C adapter is faulty?  I wouldn't know what else it could be.