did you boot from a disk to do the update or from inside the bios. if it was a windows update it may have bricked the mb. first off if the mb has onboard video see if the mb is using that port instead of gpu. if not...power off and clear the cmos.. if there no video turn the pc on see if there any post beep or windows start up sounds. if there are none see if the mb is turning on floppy or cd rom drive.
https://downloadcenter.intel.com/download/17930/BIOS-Update-DPP3510J-86A-
use a usb stick and usb 2.0 port see if the bios can recover from bad flash.