Sapphire r9 270 OC fans spin then stop continuously

ThinhNguyen

Reputable
Aug 7, 2015
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Recently, I bought new parts and built my first gaming pc. I made sure I plugged in every wire needed to make the computer work. But when I press the power button, the cpu fan and the case fan turns on but the GPU fan spins then stop continuously with no display on my monitor. Can you guys tell me what's wrong and tell me what I need to do to fix this?
Parts:
CPU: AMD Fx6300 6 core black edition
GPU: Sapphire R9 270 dual x with OC
PSU: 500w silver EVGA
Case: Corsair Carbide spec-01
MOBO: Gigabyte GA-78LMT Micro ATX AMD Am3+
RAM: Kingston Fury Hyperx 8 GB kit (2x4GB)
HDD: WD blue 7200rpm
Monitor: HP 2009