New bought Gaming destop only start sometimes

Phanqixiang

Reputable
Jan 6, 2015
2
0
4,510
Spec:
Graphic card: MSI r7 260x 2gb DDR5
Ram: 8gb hyperx ram
Power supplies: 550 watt
Hard Drive: 2TB
Processor: AMD A10-6790K 4.0ghz
Motherboard : ASUS A88XM-A

The monitor displayed nothing after i bought the new gaming destop back to home and connected it to LCD monitor from motherboard VGA socket,i consulted a pro and found that i need a DVI VGA connector and connect the monitor from graphic card and the my PC works fine,i even installed some games and played for a few hours.

The next morning,i woke up and start the computer again and it came back to it's original problem,it displayed nothing but the power on button was flashing lights.I connected the monitor to other PC and use another working monitor to connect to the my new PC,both of monitors worked fine on other PC but it didn't work well for my new PC.A few hours later,my brother went straight turned on the PC and it magically worked again.As usual i played games.

Furthermore,the next day which is the day i post this thread to ask for help,it doesn't work again,the power on button is flashing light and the fans are working.I think it's the hardware problem but i haven't go through to check the functionality of the hardware,i just ensure the cables are connected firmly.

Everything is new,i just can't figure out what's the real problem.Any possible problem for me to look out for?Or does it have any fix for this without replacing a new hardware?