Re: Can't install new Windows operating system
No, there is no block to prevent OS installation. At the very least, it should boot to the DVD, even if you can't get it installed* - you should see the Loading Windows screen. I would assume a problem either with the DVD or the DVD drive. Does the DVD boot in another system? Does the 1900 DVD drive boot another DVD?
*Windows 7 is not a supported OS for this server, so you may or may not be able to install it successfully, although I'd assume you could.