Having problems supporting system I built using EliteGroup K75SA m/b,AMD AthlonXP 2000+, GeForce2 MX400 64Mb, 256 DDR2100 and WD40Gb7200 HDD. Hard drive gets dropped by Bios, i.e. no Pri.Mater IDE on boot. Rectified once by reattaching cables, but reoccurence baffling. Will try replacing CMOS battery, but should be new.Any suggestions, or known problems with this mobo,gratefully received.