I have 3 or 4 PCs that I bought used for $20 each that have no GPU (video card). They are small form factor so the video cards from my old desktops don't work (too big). So I'm looking for used GPUs that I can put in them. The main use is for number crunching for Folding At Home & Covid-19 research. If anyone has some that will work with Windows 10 and HP Elite 8300 i5 machines, please let me know. I prefer free, but would pay like $20 each for them as long as they are known working. Or if you know of a reputable source for them. Let me know as well. -- ========================================= Jeff Brace Vice President & Board Member, VCF East Showrunner Vintage Computer Federation http://www.vcfed.org/ jeffrey@vcfed.org