Selling laptop as spares

Wazito laptop yangu imekufa. Bios got corrupted and watu wameshindwa kureprogramme.
Unless these people were incompetent, only option left is to replace motherboard which costs a whooping 35-40k mpya.
Machine yenyewe ni Lenovo y50 i7 4620hq processor, 16gb ram, 15.6" touchscreen Na Nvidia gtx860m.
Any advice on where I can get the motherboard for less ama nihesabu hasara niuze parts and start assembling a desktop.

Kama bios ndio shida then buy another bios chip. Problem solved. Anyway lenovo hupeana bios recovery software officially so ukitumia quacks wataharibu zaidi.
Anyway whats the exact error problem?

Huh. Didn’t know you can get the bios chip separately.
Won’t recognize boot manager, can’t change boot sequence. Even if you change it doesn’t save changes.
Thanks mkubwa wacha niangalie story ya hiyo chip

I have a skilled professional “Rawilsha Limited” @ Veteran Towers 2nd Floor. Its worth checking him out