I am a computer vendor for local companies, and have been doing this professionally for 21 Years.  The smaller companies I work with sometimes like to purchase their own hardware to save money, so I give them a list of specs to work with, and if the computer doesn't at least meet the specs I won't install it.  One of my requirements is that I will not install refurbished PCs, but that's not even the point here.  This computer met all the specs in theory, but there are many issues.  For one, the PC was not cleaned.  There is gunk on some of the case, dust on the heat sync, fans, etc.  The processor is actually a 3rd Generation I7 (released originally in 2012), and runs normally at 3.4GHz.  The Turbo speed is 3.9GHz.  To advertise this in the specs as a 3.9GHz processor is misleading.  The ad title does say "up to 3.9GHz", but when the specs call it a 3.9GHz processor, this is wrong.  Intel sells this processor as a 3.4GHz processor.  The specific machine I was tasked with installing had one stick of memory that was not seated.  Luckily, I opened the case before turning it on and noticed this.  The computer might have run like this, but if that memory became dislodged during operation you would possibly corrupt system files, personal files, etc.If you're in the market for a personal computer that can play older games, browse the web, do word processing, save pictures, so on... this computer may be a good fit.  Just look inside before you turn it on.  You may also want to pull the heat sync, clean it, and replace with new thermal grease on it.  If you are looking for a business PC, please look elsewhere.  I have recycled at least 20 PCs with better specs than this in the last year.  It's 2023... a processor and memory (DDR3) you could get back in 2012 is not going to perform very well with new software.  I didn't even check to see if you could upgrade this to Windows 11 before boxing it back up.