Need the magic of reddit to help identify a budget motherboard for my lenovo m91p as I bought a original Lenovo motherboard from ebay and idk just a guess it didn't work..
03T8351 IBM Lenovo System Board for ThinkCentre M91 (Refurbished)
03T8351-06 Lenovo System Board (Motherboard) for ThinkCentre M91p (Refurbished)
Amazon.com: Lenovo 03T8351 THINKCENTRE M91P TFF/SFF System Board : Electronics