Spell check: should be vintage 2005 (not vantage, sorry)
Thank you all for jumping in. I will copy and paste all suggestions and find time to follow the recommendations. Not particularly handy at this sort of things, but worth a try. My key concern is the data recovery. Good thing I have other PC to use in the meantime. I know I have a project for this weekend.
When powering it up, I don't hear any unusual noise other than that from the fan.
Will keep you posted. Thanks.