Missing Operating System error on HP server after installing video card

This has caused me quite a lot of grief before, even to having to format the server indavertently.

Looks like if the server has an NVIDIA motherboard and you plug in a ATI video card then for some weird reason the BIOS setting for RAID gets reset.

It tries to boot from the individual hard disk instead of the virtual RAID volume and throws this error.

Simply, go back into the BIOS settings and enable RAID again, and it will boot properly.

Go figure!

Btb this video card is weird. In VGA it gives a resolution of 1280 X 1024, but in DVI mode, only 1024X 768. Could be a monitor limitation too, as I had never before seen this monitor give me this resolution.

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