No one would want this would they?
Probably not. Being that old, it likely will not support W10.
We used to collect used parts and old computers and cobble together parts to make working computers. We then donated them to a local church to give to families with school kids who needed a computer for school. But thanks to the bad guys and their nefarious deeds, schools started to require any connected computer to meet specific and current security requirements, to include being able to run Windows 10.
Computer and motherboard makers will only support their products with current drivers for a few years. At some point, they want you to buy new. So they stop developing current drivers for their legacy products which means that hardware will not support the latest OS and security programs. So, as much as the churches and families wanted and needed working computers, it got so I couldn't even give these "legacy" computers away - the were just too old to meet today's security demands.
Everything came to a stop when support for W7 ended and all the school systems in my area started to require W10.
So, if you don't have any luck selling it, you have two viable options. Contact the Salvation Army, Goodwill, or Disabled Vets and donate it to them. They will either tear it down and remove all the recyclable and hazardous materials and dispose of them properly, in an environmentally safe way. Or they may install a version of Linux on it and find someone or an organization who can then use it. They may also use it in training programs to teach a new skill that helps put wayward people who deserve and need a second chance in life, back on a decent
and honest career path.
Goodwill will also "wipe" your drives, though I recommend you do that yourself before getting rid of the computer.
Your second option is to find an electronics recycling center in your area and take it there. They will scrap the aluminum and steel and precious metals (there's gold, for example, in some!). And then they will dispose of everything else in an environmentally safe way. The electronics recycling center in my area even pays us a few cents per pound for the materials that can be recycled. The one in my area will wipe the drives, but again, I recommend wiping the drive yourself first - just to be safe.
Whatever you do, do NOT throw the old computer in the trash where it will just end up as a pollutant in a landfill somewhere.
As far as wiping the hard drive, you really should do that just to ensure there is no personal data on the drive. See
How to Wipe (Securely Erase) Your Devices Before Disposing of or Selling Them.
Alternatively, if you have access to one, you could put your drive(s) through a
hard drive shredder.