MAX OC on a 4870 with stock fan

[Ric0h]

How much can I overclock it (stable and with no heat issues)

I dont want anything crazy, just nice useful Overclocking. (for example on my Q6600 it would be 2.9)

Also, I can crank up the fan speed, if you guys teach me how.

 

[ricanflow]

We cant tell you how much, it depends on your card.

 

[Ric0h]

So if I am going to overclock then I should do Whatever the factory overclocked version is?

And do factory overclock, do they crack up the fan?

 

[gurusan]

no way to tell...just keep pushing it.

 

[Ric0h]

How will I know when to stop? Don't want to burn it, nor I want to do anything crazy.

 

[gurusan]

you cant break a card by pushing the mhz up. it will just be unstable. just keep clocking til it's no longer stable then back off a bit til it is.

 

[zmatt]

You will know it is unstable by seeing artifacts. These are little random things that will show up when you are playing games. Strange no game related anomalies are a sign of a card pushed too far. Also some times it may crash the computer under load.

 

[ricanflow]

ATI Tool has an artifact scanner, you run that and if you get any errors, youve gone too far.

 

[zmatt]

EDIT:


Sorry I thought I was in a different thread.

Yeah ATI tool should be able to test your card, If you get any artifacts you have gone to far.

 

[gurusan]

it should. works fine for me