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Can't Boot From DVD on HP DC7800

metazog
metazog asked
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I am trying to install Windows 7 on an HP DC7800 with a new 1TB drive. I have the system boot order set to CDROM first, and I have also tried the boot options (F9) key. Neither will let me boot from DVD to begin the install.

I see the DVD activity light on during the boot process but the install never starts and fails with an error saying non-system disk which I assume is because the hard drive is blank and the system is trying to use that after booting from DVD fails.

I have tried multiple bootable disks with the same result.
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Just looked at the specs for your model, and 1TB HD not supported. Did the machine come with this drive, and do you have a smaller drive?
Also, are you running ide or SATA?

 

Author

Commented:
The macine did not come with this drive. It is SATA. I have another DC7800 which I upgraded in the same way and the 1TB drives work fine.

Commented:
open your bios and check if it is seeing the 1TB drive., maybe your board don't support 1tb, and u need to upgrade ur bios.
Does your other machine run Windows 7?
Are both 1TB drives the same make?

Author

Commented:
The machine recognizes the new drive as a 1TB drive. My other machine runs Windows Server 2008 R2. If memory serves, the drives in the other machine are not the same make as these.

Author

Commented:
OK. It looks like my DVD drive may have filed in the past two days or so. I put the old drives back in and booted up and the DVD drive can't read any disk I put in it.
 
Your machine with Server 2008, are both the 1TB and DVD on SATA?
I would look at changing the leads out from the known machine to the non working machine, 1 at a time.
Top Expert 2013
Commented:
if you can't boot from a DVD or cD, here the possible causes :
bad DVD drive, or bad media (you tried other DVD'S, so that is tested), did you try another drive ?
as said, it may also be a failing cable - it is a sata drive, right?
do you have a spare sata connector on the mobo to test it on?

you can also test the drive on another pC, to be sure !

Author

Commented:
It turns out that my DVD drive was bad. Odd, as I used it a fews days ago to burn a DVD but there you go. I replaced the drive and everything is working now.
Top Expert 2013

Commented:
tx for the feedback; unfortunately, that's how it goes...