These are probably two different things. There is a normal series of beeps every boot, as USB and other peripherals initiate. The only time to worry about beeps is if there is no video, or other boot failure. Otherwise, the beeps are okay.
You are correct in looking in the SEL to find out why the fans are running full speed. Usually it is a fan plugged in to the wrong location or something. If you can't get the SEL from EFI, you can also run it from Windows or Linux. Download Center