Took two hard drives out and installed one 120 Gig as Master.POST is slow then i get a hard drive failure message If i instal one of the old drives as slave then things return to normal.Any ideas please.
Well, as woodchip suggested, did you use the auto detect in the Bios? If so, are you installing your operating system on your new one or leaving it on your second drive? You would need to boot from the drive on which your operating system is installed - but of course, you already know that! :-)
The first thing I would look at is your jumper settings on your new drive, and whether the old drive is set as slave. Western Digital drives with a slave drive attached, need the jumper settings "Master with Slave".
Check both jumper settings and that your drives are attached to the cable correctly.
Changed boot order in BIOS.Boot up from XP cd.Formatted the drive then installed WindCanged boot order back on completion.This is the second machine in a week that this has taken place.Is it something that i am doing.
"On both machines the Slave drives are from different manufacturers than Western Digital.Would this be an issue."
No I don't think so. :)
If I understand correctly, the problem is only when the new drive is a standalone Master? This suggests to me that the jumper settings on the new drive, are incorrect - but there again, I may be wrong - unless, of course the settings on both drives are wrong.
Set the new drive as Master, without slave and try again - incidentally are you using an 80 pin cable, because the attachment of the hard drives to this can be important. Blue to motherboard, black to master and grey to slave - I think is correct (remembering offhand).
When installing Windows XP it can partition and format your hard drives during installation - again you probably are aware of this already. :-)