Monitor loses signal after 5 minutes of intense gaming

[Foitos Bogdan]

Hello,i am new to this community and to graphics cards.The problem is that my monitor loses signal after a few minutes on high performance gaming although the pc still runs and i can still hear sounds lagging for 30-60 seconds.I updated all system drivers,but didn`t help.I also checked overheating with HW monitor but i didn`t see temperatures higher than 43 degrees.please help any suggestions are welcome.
My system:AMD R9 x280
Intel i5-4440
8GB ram ddr3-1600mhz

 

[huilun02]

Set the card to run at 850Mhz core clock and 1500Mhz memory clock, see if the problem still occurs.

Also, what PSU are you using?

 

[Foitos Bogdan]

I have a 600W Zalman PSU.I did as you said and now i dont have any signal lose or any other problem,but wont it hurt the performance?...i mean the max core clock is 1200 and the max memory clock is 1600.

 

[huilun02]

Did you overclock your card beyond the factory default setting? Doing so can cause it to become unstable and cause those problems.

If you did not, it means you received a bad chip that is unable to run as advertised, and can RMA it.

 

[Foitos Bogdan]

I received a program called OC Guru and with it i overclocked the card to 1100,never more than that.Anyway thanks for the good quick answer.

 

[bryonhowley]

^Agree if you did not do any Overclocking yourself I would RMA the card and get a new one. It sucks but every manufacture will have a bad part every now and then it happens.

 

[Foitos Bogdan]

Yes i think that i will RMA it.Many thanks for the answers,really helped.

 

[huilun02]

If it works fine at the factory set speeds, your RMA will probably be rejected.

 

[Foitos Bogdan]

I thought of that too but at least i will try and if it will be rejected i am anyway very happy with 1000 core clock.