All laptops are designed from the ground up. All parts for this particular laptop will only fit this laptop series.
In order to repair this particular laptop, you will need the exact motherboard. You should provide the full model number so I can find specs and get you the matching CPU for the motherboard. Or if you think yours works, you can move it over.
Here is the motherboard on Ebay,
https://www.ebay.com/itm/Toshiba-Satellite-P200D-P205D-AMD-Laptop-Motherboard-s1-K000055940/142134464795?epid=1601883139&hash=item2117dfd11b:g:hxkAAOSw8w1X7s1o