The sad thing is it shouldn't cost 400$ because you don't know how much the motherboard inside is failing. Over time inner parts will heat or melt or little things can go wrong you cannot see. This goes way beyond a CMOS/Ram or hard drive swap. And this is completely within the realms of normal. In fact if your computer lasts 6 years your lucky but then that means it may not work the next week.

'Oh it turns on' says the product listing but that doesn't mean it will turn on for long and it's 400$ down the f'king toilet where as for just a bit more you can have 5+ years of new hardware and with some tinkering you can emulate almost to true Windows 98 via 86Box as long as your host can handle it or go the virtualization route if it cannot though I REALLY DON'T recommend virtualization. I DO recommend 86box or PCEM.