Strange Start-up

[thegranitess]

This is my first post. The truck is a 04' Trailblazer with the I-6. The problem is at start-up, initially it takes a few seconds/ cranks to start. As its starting there is a scrolling noise(like a hard drive spinning up) from behind the dash/cluster. Also if the truck sits for a while the clock returns to 12:00, but the station pre sets are still saved. Watching the voltage gauge there is no change or surge.