I have attempeted to replace my HDD. With new HDD, floppy & CD drive attached I get message 'INSERT SYSTEM DISC AND REBOOT' I have tried booting with no drives attached. I get message VERIFING DMI POOL DATA...... I leave this for some ten minutes, nothing else happens. I have tried many many settings in the BIOS including load fail safe defaults & Load optimized defaults, all to no avail! I have tried removing CMOS battery switching on and waiting for memory test to complete and switching off... also to no avail. I have tested two HDD two CD drives & two floppy drives to no avail. I am at a loss as to what to try next. Please advise.