I bought the AXDA1800DLT3C CPU for $67 a couple of days ago and ran in to some weirdness (slightly long message, but bear with me).
I plugged the CPU in to my Shuttle AK31A mobo and it booted up with "Unknown CPU Type 1464Mhz". I went ahead and flashed my mobo to the newest bios and then it recognized my CPU as an "Athlon XP 1100Mhz". That made no sense at all! So I went in to the bios and noticed that the FSB was set to 100Mhz (why? I have no idea!). So I set it to 133Mhz and rebooted and now it recognized the CPU as an "Athlon XP 1700+". Still does not make sense since it should be an 1800+. I then noticed that on random reboots it would detect the CPU was an "Athlon XP 2000+". So I said, what the heck - if it can randomly work as a 2000+, then I might as well try and force it to. I changed the multiplier from 11 to 13 and rebooted. Obviously I didn't expect this to work since the multiplier should be locked right? But no, it booted fine as a 2000+ and now i'm stressing it with Sandra and seems to be fine!! Oh, and i upped the voltage by 0.5 and it's running at 1.54V right now. No other changes. I tried to up the multiplier to 14, but it wouldn't boot, so i reset the bios.
Is this odd or what? Is anyone else facing weird issues with this CPU?