M14x Continuous beeps on start up

[Presbian]

Hi, just wondering if anybody has any idea what may be causing it or how to fix the issue. After the windows start up screen bar loads the computer beeps constantly for maybe 15 to 20 seconds before continuing to boot. There are no issues after boot, and everything works fine after the constant beeps. any insights? Also replaced the keyboard thinking it was a stuck key, no change, and checked and reseated the ram, so it's not that either. Checked the motherboard beep charts and there is nothing about continuous beeps. Cheers

 

[RunLuke]

Your motherboard manual might tell you what the beeps mean.