Just built new pc and when I try to boot it beeps and won't output

mdanielsbusso

Prominent
Sep 24, 2017
16
0
510
So last night I built my first ever pc. IT took me 3 hours, and when I went to power it up for the first time it didn't work :(

My specs are -
Asus h110m-d mobo
4gb crucial ddr4 ram
1tb Seagate barracuda hard drive
Intel Pentium g4400
MSI gtx 1050 2gb OC dual fan
EVGA 500w 80 plus PSU
AvP pulse case
Asus wifi card

When I try to boot all I get it a continues beep in codes of 3 (beep, beep beep, beep, beep beep etc.)

The CPU fan is spinning as well.
We get no output onto the monitor - please help me as this is my first build and it's not working :( - thanks in advance, max.