03T8351 IBM Lenovo System Board for ThinkCentre M91 (Refurbished)
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..
100% Working Server Motherboard For Lenovo Thinkcentre M91p 03t7300 Is6xm Q67 Fully Tested - Motherboards - AliExpress