Amazon.com: Lenovo 03T8351 THINKCENTRE M91P TFF/SFF System Board : Electronics
IBM Lenovo ThinkCentre M91 M91P Motherboard P/N 03T6559 0B6286 (0266 U – CTSESTORE.COM
IS6XM REV:1.0 For Lenovo M91 M91P M6300T M8300T Desktop Motherboard LGA1155 Mainboard 100%tested fully work - AliExpress
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..
IS6XM REV:1.0 For Lenovo M91 M91P M6300T M8300T Desktop Motherboard LGA 1155 DDR3 Mainboard 100% Tested Fully Work - AliExpress