オリジナル投稿者： jayeff ,
Hi @d2tizzle22, If you have the Lenovo ThinkPad Edge E330 check if the ''backup battery'' is OK. This battery maintains the BIOS settings and can cause problems if it is flat (no pun intended as it is a coin cell type battery with leads attached ;-). Here’s a link to the [https://thinkpads.com/support/hmm/hmm_pdf/e330_e335_hmm_en_0b48602_04.pdf|service manual] for the laptop. Scroll to p.66-67 to view the necessary pre-requisite steps and then the procedure to remove the battery. Here’s the part number for the battery : 02K7078 (I think) You can double check on [https://pcsupport.lenovo.com/au/en/products/laptops-and-netbooks/thinkpad-edge-laptops/thinkpad-edge-e330/3354/parts?linkTrack=Homepage:Body_Search%20Products&searchType=4&keyWordSearch=Edge%20E330%20(ThinkPad)%20-%20Type%203354|this] page. You may be also able to verify the part number from the battery itself. If you search online using the part number ''only'' in the search box of your browser, you’ll get results for suppliers of the part.