I’ve been trying to fix this problem for weeks. Every time I start up my Optiplex GX260 its says “Primary hard disk drive 0 not found” and “Primary hard disk drive 1 not found”. I checked all my power cables and connections and they’re fine. I also installed a new hard drive and that didn’t work. I tried re-installing windows xp to no avail. So now I’m stumped, I have no idea what to do next. Any help would be greatly appreciated. Thanks.
