New GPU - no output at all

Cupid m3

Reputable
Jul 18, 2014
15
0
4,510
Hi guys
got today my new r9 270 and i dont get any output at all.
My board have built in graphics - i checked the bios that ext. gpu isnt disabled and also cleaned the PCIE socket and checked with 2 different HDMI cables.
what can be the problem??
thanks