Report "Abit fatal1ty aa8xe v1.0 - DIMM 1&2 works fine with all DDR2 PC2-4200 533 mhz ram but as soon as I boot with all 4, it beeps and I get a post code AF. I've flash upgraded the bios and cleared the cmos by jumpering the pins, removing the battery and disconnecting the power from the atxpwr1 and atxpwr2 for 20 minutes (atxpwr3 not connected) but it did not help. any suggestions?"