New Build Won't Boot from Disk

I have a Biostart N68S3B MOBO. When I boot it up, everything loads, I do get one message on the screen that says "DQS training failed on previous boot, reverted to slower DRAM speed" but other than I don't see any problems. When I get the option to go to Bios or continue with default settings it brings me to a screen that says the below.

Reboot and Select proper Boot device or Insert Boot Media in selected Boot device and press a key

When I press a key, it just keeps displaying that same message. Does anyone know what the problem can be? I've tried more than one installation disk too. Is there even a way to get to dos from here? Any help would be appreciated. Thanks.

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Have you installed ...

any operating system on the hard drive yet? If not you can't boot to anything other than the CMOS Setup where you can set up the BIOS and select the boot order.

Then you make use of a bootable Operating System installation CD or DVD to boot for the OS Installation.

The "DQS training failed ..." message indicates that you might have mismatched RAM or you might have the timing or speed set incorrectly (try AUTO) or you have the RAM in the wrong slots for your configuration or you are running an unsupported RAM speed. READ what your motherboard manual tells you about populating the RAM slots and the RAM supported by the board.

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Re: boot

I'd first solve that setting problem.

Then check
(a) what boot device you selected
(b) if those installation disks (what installation disks?) will boot on another PC

If motherboard, CD/DVD-drive and hard disk are OK it should boot from a bootable disk.


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