I have an old 8KHA+ that's been fine for years, Rev 2.0, caps OK, Athlon XP 1900+, latest BIOS upgrade. It has an ATI Radeon 9700 Pro. I have an extra ATI Radeon AIW 9800 Pro I'd like to install, but when I do, the power supply just kicks out instantly upon pressing the start button. PS is Antec 430 True. I tried a different PS, Vantec 420, same thing. I put the 9700 back in, have to unplug the ATX connector from the board, plug back in, presto, starts right back up where it left off. Have tried many times, nothing. Poof, shuts down before a fan even gets to make one revolution!! Oh, the 9800 came out of one of my other computers, known good. Is there something about the AGP on a 9800 that won't let it run in this board? Voltage different? I have another 8KHA+ in another box, perhaps I'll try that one, but expect the same result. Any suggestions?