His radeon hd 4870 overclocked

[blitzburgh39]

ok. when i have my 4870 overclocked to 780 gpu and 1100 mem clock and i play cryostasis... anywhere bright. like his hands right on the screen. have like black squares that pop up all the time. is this artifact? but when i go back to stock settings. they are gone.

i used auto tune in CCC to overclock. can anyone help meh? thank ya very much!

jimboooo

 

[blitzburgh39]

fast... i autotuned. idk. ive seen a lot of people say they overclock theirs

 

[blitzburgh39]

then what should i overclock it to.

 

[blitzburgh39]

ok got it fixed. overclocked to 780 gpu and 1010 mem clocks. no more blocks! !!!!

jimbo