Need Help with overclocking gpu

[Sadric]

So I've only recently decided to push my R9 390 Sapphire TRI X a little bit further on MSI Afterburner and Valley Benchmark.STOCK clock[1040,1500]
However,I cant seem to get a stable OC[1100,1600] at all,keeps getting 'flashing white/blue dots on my monitor'.I've turned up the voltages by 38mhz and power limit by 15% alr.
Any experts willing to help up?
My RIG if it helps:
MSI Krait Gaming Z170
I5-6600K 3.5Ghz[lowered down from 4.1ghz to see if it solves this unstable problem]
2x8 corsair vengeance lpx 2400mhz
Corsair RMi750

 

[Rogue Leader]

I see now.

https://www.youtube.com/watch?v=F3K5RPCch4s This video?

To me still looks like its blowing hot radiator air over your GPU which limits your overclocking capability. It works yes, buit you will still have that issue. IMO

 

[Sadric]

10:40 - 13 :20 in the video,you meant this setup?

 

[Rogue Leader]

10:40 - 13 :20 in the video,you meant this setup?

Ok I missed that part, had to skim the video (at work).

So what he is saying is to offset the radiator on the top of the case because it interferes with the motherboard. Yes you can do that (and the radiator should be on the outside so the fans blow out), however you may need to drill some holes to do that offset so you can securely mount it. I mean you could just mount it on the one side but that doesn't seem super safe.

 

[Sadric]

Dont really feel like drilling holes on the case...radiator on the outside as in outside the case or below the top fans?

 

[Sadric]

And would only securing the rad + fans be too heavy that it might potentially damage the screws/threads?

 

[Rogue Leader]

Dont really feel like drilling holes on the case...radiator on the outside as in outside the case or below the top fans?

Radiator against the top of the case, fans below it blowing out through it. If you can find a way to secure it like that it would be the optimal setup. Maybe 2 screws and 2 ties of some sort.

 

[Sadric]

alright,i'll try it in awhile.

 

[Sadric]

Ok,sad thing is that OC3D's method only works with 240mm rads.But if I do not want to move the rad to the top...Can i actually just upgrade the fans in my system? whether it is front or top?I do know that static pressure fans are made specifically for rads tho.

 

[Rogue Leader]

Ok,sad thing is that OC3D's method only works with 240mm rads.But if I do not want to move the rad to the top...Can i actually just upgrade the fans in my system? whether it is front or top?I do know that static pressure fans are made specifically for rads tho.

Well you already have rear and top fans, IMO the problem that limits your overclocking as your intake fans are blowing through a radiator which is not providing cool air into the case and the radiator is slowing the airflow down as well.

 

[Sadric]

I guess I'll look into aircooling option then,cause my case doesn't support much option,or I can just change my case to fractal design s right? But then is it really that crucial to avoid 80 degrees in OC?

 

[Rogue Leader]

You want to stay in the 80 range especially because you had those memory temp problems. The R9 390 throttles at about 94deg C but at that point you almost definitely have memory heat problems. It should still work fine for now like I said you're just limited in your overclocking a bit.

Now that said, I don't know that I would go spending money to help this, only because you're not gonna get $50 or whatever of extra performance for the $50 you spend. Not worth it.