Green vertical lines when playing games

[maks_the_beast]

I have an xfx 390 which was slightly overclocked but i set it to just oc the memory and i rarely get green vertical lines . I reseted everything to factory settings and it still does that but like i said it only happens once a day for a split second. My gpu doesnt reach 80c because i play bo3 locked at 75fps when it normally runs at 100 minimum and fifa in windowed mode locked at 30-60fps with getting 200fps minimum without vsunc so it doesnt go 100%. My monitor has freesync would it be that. I dont want to send the cad back so im trying to find methods to fix this

 

[dextermat]

Hi,

Most likely a defective gpu, bad driver or failing PSU.

Try with a know working PSU or try reinstalling older driver.

If all fails I would RMA the card

 

[maks_the_beast]

The psu is a bit dodgy since i got the card but i dont want to spend most of my money on a new psu