IBM ThinkPad R51 15" MotherBoard Type 1836 93P4257  TESTED  INCLUDES bottom case and CPU and heatsink/Fan TESTED --- 100% FUNCTIONAL  --   REMOVED FROM 15" IBM R51 LAPTOP. PLEASE DO NOT BUY THIS BOARD IF YOUR LAPTOP IS 14" EVEN IF THE PART NUMBER IS THE SAME. IBM LAPTOP TYPE: 1836-H7U BOTTOM CASE is  INCLUDED AND it looks ok, HAS A CRACK, but usable! Reduce your work! MUCH SAFER THAN INSTALLING BARE BOARDS.  Comes with 14 days warranty    Bid with confidence.  Picures is actual item --- please look at the picture for the item you'll receive. However if actual picture is inconsistent with the description, then there's a mistake, please contact me first for clarification before you buy.    Thanks for looking! Actual picture -- if it is not mentioned as included, please assume it is not included.All items are used except indicated otherwise.