Remove BIOS when pc running

[Krysoft]

Hi, I have old notebook amilo M7405 and I'd like to change BIOS chip after run my notebook, its a PLCC32 package and I use special remover tool for PLCC chips. When I remove BIOS chip in windows, notebook after a few seconds shutdowned. I looked on youtube, but a few peoples sucesfully removed when running pc. My question is, why my notebook shutdowning?

Sorry for my english

Thank you sou much for your answer

Regards Krysoft

EDIT: I running on Win PE 7 (non installed OS)