Reference 5850 overclocking

[Spokwiththeears]

I'm going to overclock my 5850 soon and I'd like some advice on what I need to do please.

I'm also thinking of buying a Zalman VF3000A to put on it so that it stays cool when overclocked, can someone who has one of these give me their opinions on it?

Thanks.

 

[Spokwiththeears]

I don't plan on pushing it to its limits, just a reasonable overclock to hopefully raise the minimum fps in a few games. I'll have a go at overclocking with the stock cooler as you say. What software do I need for overclocking and how can I test for stability?

 

[Spokwiththeears]

Ok, what is the maximum voltage I should be using? and what temperatures are safe?