MSI R9 280X Overclock

[Ps3k0dz]

Hey everyone
i just bought this card few days ago and i pushed it from 1020 = 1150 core clock / memo clock 1500 = 1600
with voltage +19 in AB everything worked fine except yestedray i was playing arma 3 and the card start flickering for few second some black lines in the screen really dunno why she do that for me

Is this issue come from high Oc? if yes i want you guys to tell me your stable frequency if you have the same card and i 'll give it a try

also should i put +20 for power limit?
NOTE : i flashed my card to the last vbios released by MSI

rest of my specs :
Psu : Cooler master GX 550w bronze
i5 3570 k oc 4.3ghz
8 GB RAM
AMD driver 14.3beta
Windows 8.1
asrock z77 extreme4

 

[JC316]

Your problem is likely coming from that power supply. The 280x uses 216W at normal load stock, when OCed, and the rest of the system, I'm betting that it's overloading it.

 

[True Christian]

You're PSU is fine for ONE 280X, not two! If you want 2 in Xfire than you'll need at least a 750w CM GXII. Did you flash the card right? It's so easy to f*ck it up! Those lines could also be created by your GDDR5 overclock. Try putting it back to stock. It's not your core overclock because it would hard-lock if it was to high. I hoped I've helped as I'm an nVidia user but I have the same high-quality brand of PSU as you.