Drivers/etc. for overclocking a 1520?

What drivers is everyone using? I've tried the default and the 165.01 and I got lock-ups at lower core and ram clock speeds than other people are saying are stable (<525 core and <450 ram) when running Nvidia's stability test. I'm using Rivatuner. Does this sound like a driver issue, or like there is something else going on? Am I pushing it too hard?

Thanks!

Laura

Edited to add: I'm stable with the stock drivers at 580 core, 440 ram. I got a 3DMark06 score of 3288 while running Vista in Classic view. Be sure when you compare this score to others that you are comparing apples to apples--I ran 3DMark06 at default 1280x1024 resolution which cannot be done on a 1520 with 1280x800 or 1440x900. I've been playing with clock speeds, benchmarks, and stability tests for about an hour now and my GPU has not gone above 55C according to Ntune. Rivatuner is holding clock speeds through a restart (after I figured out I had to click Save next to the option to maintain settings on restart every time I changed the clock speeds).

 

I don't think that there are any drivers out for vista that utilize the overclocking feature of the GPU very well. Vista users will have to wait a bit longer to get a driver that supports overclocking.

 

Hmmm, I had heard the opposite, that users with XP couldn't get overclock speeds to hold through a restart.

 

OT. Stella, can you please state the reasons for you trying 'Deciding which one to keep', when you mentioned earlier that you were going to return 1520? Is the graininess not really that bad?

 

I am using vista and rivatuner. When I change my clocks and hit save and then reboot...when I go back into rivatuner it still shows my stock speeds
next to where you you change the clocks. Is this correct? How do I verify that the clocks actually changed?