"have to switch on and off again to get it to boot correctly."
This points to some possible hardware issues.
1. Try a new 80 conductor ribbon cable.
2. Type BAD CAPS in google.com and review the pictures to make sure your machine doesn't have this issue.
3. Increase the power supply Watts by 50 to 100 Watts more.
4. Ask the machine's maker if the BIOS was updated to address this issue.
I found a problem very similar to mine on the internet, but to get the rest of the answer I have to pay money. Can anyone figure this out for me? See Below. Thanks.
When I switch my machine on from cold and after I see Verifying DMI Pool Data I get the message HARD DISK BOOT FAILURE - INSERT SYSTEM DISK AND PRESS ENTER.
What is strange is that if I then immediately switch the machine back off and on again it will always then boot correctly. If I just use CTRL/ALT/DEL or the Reset Switch on the Front of the machine it gives me the HARD DISK BOOT FAILURE message.
It seems that once it has booted as it always does on the second try I can switch it on and off as much as I like and it will Reboot each time. If I switch the machine of for any length of time - 2 or 3 hours for instance I then get the BOOT ERROR again and then have to switch on and off again to get it to boot correctly.
I have run various diagnostic tests on the hard drive which the drive has passed (Maxtor 6Y120LO).
I wonder if it could be a power supply problem.
When your computer is switched off for a long time the memory goes to sleep. ... After this, I was able to add my third drive and boot has since been ...