bios password lost, can't access anymore

[Anitaaa]

Hello  ..recently I bought a used Compaq 6005 Pro SSF and now I can't boot 'cause it freezing.  I tried to access the bios to change the boot order (in order to start from the CD-ROM) but the bios's password-protected    ...great, can't do anything

I found the "green" jumper which is said it's resetting the bios password - so I removed it for a while and also removed battery and anything else for some minutes, BUT the problem remains the same. 

Is there please some help?   Greetings, Anita 

[Anitaaa]

hello ...nobody here?   😞

I looked around and also tried to access with the code / pw, David recently mentioned ("62252458") but it did not work.

please help - I'd really love to (just) use the old OS win7 (in order to run old programs)  

Thanks and greetings, Anita (Austria)