Query regarding bootup LED behaviour

Hi,

Recently got a EP9301 based board. When I power up the board, sometimes the LED marked RED (the only one marked that way) between the 2 Green LED’s lights up for as long as 10-15 seconds and nothing happens for that time. No bootup and no console messages. Thereafter the LED switches off and bootup happens. At other times the board boots up right away on power on. Any likely reason for this behaviour?

niceguyad