LOL, well I am self-taught (I replaced a friend's motherboard simply by remembering where I took everything off and putting it back where I found it, and he's had absolutely no problems; I've done other more minor repairs for other people and I am good at making Windows behave when it misbehaves for the technologically impaired). I just don't know that acronym, and it was not covered in A+, Network+, MCDST, or Security+, so it can't be that common of knowledge. I assume you mean did I press F6 for the AHCI drivers prior to OS installations, but I have never heard of AHCI drivers. I may very well know it by another name, perhaps the if you could tell me whatever it is that AHCI stands for, I could answer the question. I did build this PC a number of years ago and it has worked for months and months at a time, I believe 4 months was the record. It just keeps breaking, despite multiple different installations of Windows, multiple hard drives, multiple RMA's and multiple replacements of parts (all but the case and the ribbon cable on the floppy drive). While it may be possible that this is what is wrong, I have installed Windows many times with no problems, many different versions of Windows. So I doubt that I left off some crucial step this time, though it's possible. I don't actually remember very much about the installation because I did it last year, and then got so absolutely fed up with this PC that I let it sit around and collect dust for over 6 months and have been just using my Droid for all my Internet needs (this is why it was overheating so badly; dust bunnies in the heat sync/heat sink/whatever it's called! But the motherboard's still overheating). But I want to use some of my Windows software now, so I need to get this machine working. In switched-on time, Windows has been installed for less than a month, but in real time, it's been about 7 or 8 months. I properly formatted the hard drive and I installed Windows XP per the prompts, but do I remember ever step? I have only installed XP about three times, ever, as I was a major Windows 98SE devotee and still think it was the best OS of all time (just not secure enough in today's world, since it hasn't been updated in so many years and is no longer supported). So this whole NT kernel (hopefully I am not using the wrong spelling here) is somewhat new to me (apart from a little Windows 2000 many years ago).
Based on a web search, I am seeing Advanced Host Controller Interface...I can only guess this is probably what you mean, but with all the acronyms out there, all the combinations of letters that stand for multiple different things, it's impossible to be sure unless you confirm that. I'll have to go read about it and see if it sounds familiar. Question...is this BIOS-related? I do remember doing something with the BIOS, so it might've been that. I would dread to reinstall Windows again, it took absolutely forever (weeks) to get everything set up right and get all my software installed. Is there some way I can check to make sure I didn't skip or mess up this crucial step? Some setting I can check? I know my hard drive is Sata. I am not using Raid at all. I am using a ribbon cable for the floppy drive but am not 100% certain that this is considered IDE, but I think anything using a ribbon cable is considered IDE. I can take it apart, put it together, and figure out what a user is doing wrong. Everyone has to start from somewhere and unfortunately my mom still has to be told which mouse button to press and my dad tried to fix a computer by cutting the ends off the cables and "soldering it direct," so it wasn't going to be family that I learned from!