The chipset that controls the power input has failed on my Sony Vaio VPC-F13M0E/B and cannot be repaired. The Sony authorised repair agent has quoted a price that would still be uneconomic at half the amount.
The motherboard number is
I really want it fixed but not at any cost. I'm wary of buying a replacement board on ebay or from unknown websites. Getting a second-hand identical model for spares is an option but quite costly.
Any suggestions, advice or warnings would be really appreciated.