Dual Boot Problem

I have a Mac Mini Server (mid 2011) and I have used bootcamp to dual boot a 64-bit Windows 7 Ultimate OS. When I had originally set up dual boot system when I hit option on the keyboard it only took 5-10 seconds for the different hard drives to show up. It has since started to take over a minute of me holding the option key to show the different partitions (does not include the time it takes the OS to load).

What is the normal time after a restart I should be forced to hold the option key? If over a minute is not normal, is there anything I could have possibly changed to increase the time or is there anything I can do to help reduce the time?

Thanks for any advice

Problem appears to be solved, I had a USB attached that seems to be slowing down the boot process.