I've got a very strange problem with an older PC based on the Intel DP35DP Desktop Board with the latest BIOS installed.
There is a bios supervisor password set, and I'm tryinf to reset it via the maintenance menu accessible by the jumper configuration as suggested by the troubleshoot guide.
(1) Power Off PC
(2) Set Jumper to access BIOS maintenance menu
(3) There it shows me that BIOS supervisor password is set
(4) Hit "Clear BIOS password"
(5) Confirmed in the BIOS "Security Tab" that supervisor password is listed as not installed
(6) saved changes
(7) As told by the onscreen message I turn off the PC
(8) put jumper back to normal mode
(9) Power On and Password is still there
Things I've tried:
- Removed CMOS battery, while power supply plugged out for about 30 minutes. (didn't work)
- Tried to reflash BIOS, apparently password is needed (didn't work)
- One Strange thing that is worth mentioning: Even when I clear the password in the maintenance menu, the BIOS still asks me for the old supervisor password when I try to install my own in maintenance mode.
I would be grateful for any suggestions how I can resolve this issue.
First of all, I would like to inform you that this motherboard has been out of support since December 24, 2010. http://www.intel.com/support/motherboards/desktop/sb/CS-032022.htm
However, all the troubleshooting you have performed is the one we recommend customers do to for this type of issues.
At this point, we can say this is a motherboard’s malfunction, so I suggest you to get in touch with our local Warranty Department so they can help you to replace the unit if it is still under warranty: http://www.intel.com/p/en_US/support/contactsupport