Issues with booting; using vista os

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Guest

Guest
Using windows vista OS. Installed new hard drive, power supply and added memory. After installing OS on new hard drive and immediately upon all power ups need to press f1 to continue. Boot sequence is hard drive first. Installed new OS with OS DVD first. How do I correct to where it boots normally without the press of f1?

Forgot to add I'm using the OS on a Dell Dimension 9200. I understand Dell computers are extremely proprietary.