Dell Dimensions 2400 Primary Drive 0 Not Found

if just set optimal defaults in BIOS windows are not perhaps on the
drive you try to boot from.BIOS can have changed drive.

Your computer cannot find a boot-able storage device, i.e. hard disk drive, to boot from. Either your hard disk drive is defective or the OS (operating system software) is corrupted and needs to be re-installed.

when the operating systems was setup on your hard drive, the incorrect partition was set. this causes that screen to appear. more often people will choose that way so that you may have full advantage od a smaller hard drive. this will not affect the performance of the system in any way. the fact that you have to hit the f1 key on startup is just an inconvenience.

your mainboard is broke down. it doesnt see HDD.

sounds like your floppy drive is failing, you could get it replaced or simply turn it off via the BIOS.
to turn it off simply hit the F2 key. On the first screen usually it will list your Hard Drives, CD ROMs', and the Floppy. scroll down to the floppy and hit enter ot the corresponding key form the bios's legend at the bottom or right hand side of the screen untill you see disable.
Next you can navigate to Save & exit or hit F10 to do the same. G/L.

Sounds like you have a bad/disconnected Hard Drive and the system is looking for a second boot device (ie: Floppy with a disk) or your primary IDE channel on your motherboard is bad

It sounds like you may have the IDE cables hooked up backwards on your motherboard.. The IDE cable slot on the motherboard labled IDE1 should be where your Hard drives are if you want them to read as primary. The Optical drives are usually on IDE2, designating them as secondary.
Let me know if you need more help.

Hit F2 to run setup.
At the HDD set up portion leave Primary drive as it is.
Set the Secondry drive to none or automatic.

Strike F2 to go to the bios to run the setup utility

Don't touch anything , save and reboot

If primary hard disk still not found

reboot press F2 to re-enter the bios

Look for Auto Detect Hard Disks

if the computer shows a hard drive is detected

set the drive to LBA if possible

save and reboot



Az.

usually on the Dimensions, it's a blue or grey SATA cable that goes from the drives to the motherboard. Dell has those as accessories, amongst others online