2 Beeps, no display

AznCountry

Commendable
Dec 7, 2016
3
0
1,510
I just built a new computer (using some used parts) but when I power it on it beeps twice consecutively. There's no display either. I read somewhere that it was probably a problem with the ram so I pulled out each one and tested it with one in and none in, still beeps. Should I buy new ram sticks?

CPU: i5-3470
MOBO: Dell Alienware Aurora R3 (pulled from a slightly older working unit)
RAM: 2x4 Ballistix DDR3 (also pulled from working unit)
GPU: GTX 1050ti SC
PSU: EVGA 500w
Harddrive: Seagate 1TB