Question Display goes black and in few seconds it returns normall

[AlisaAbe]

so, the thing is - while playing my display goes back but i can hear sound of game and after few seconds display comes back. I dunno what problem can be, but i think it might be fault of RAM, it uses about 4800mb in game while i have 5200mb installed. Please, help me guys d;

CPU : AMD A8-5500
Motherboard: Lenovo 10117
Ram: 6gb (5,19gb available)
SSD: 120GB
TEAM 2.5" SATA3 GX1 120GB, T253X1120G0C101
HDD: 500GB
GPU: XFX 460 4GB
PSU: XN051 | XP400R7
OS: Windows 10 pro

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to list your specs. List them like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

How old is your PSU?

 

[AlisaAbe]

When posting a thread of troubleshooting nature, it's customary to list your specs. List them like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

How old is your PSU?

CPU : AMD A8-5500
Motherboard: Lenovo 10117
Ram: 6gb (5,19gb available)
SSD: 120GB
TEAM 2.5" SATA3 GX1 120GB, T253X1120G0C101
HDD: 500GB
GPU: XFX 460 4GB
PSU: XN051 | XP400R7
OS: Windows 10 pro

i bought PSU week ago.