Hello, today I just got my PC back because I moved to Florida from Seattle and had it shipped. When I turn on my PC and error comes up:

"Reboot and select proper boot device or insert boot media in selected boot device"

I have not had this PC for more than a year, about 7 months actually. I have no idea what is wrong with it. Here are the specs..

Intel Quad Core Q6300 2.4ghz
NVIDIA 9800GT OC 512MB GDDR3
Pegatron Motherboard
That is all I know because I usually check my specs from my PC...sorry. Please help me

If nothing else has been done, might I suggest checking for loose interface cables?
It's a long haul from Seattle to Florida, there is a good chance something may have become loose. (depending how it was shipped).
Check your HD cables, the 'ribbon cable' isn't all too tight when plugged in, the power should be ok