Quote Originally Posted by derektm View Post
I've tried up to 2.1V on PLL and 1.5V on the VTT (QPI/DRAM). Lowest mem dividers as well. I'm going to sell a couple of these chips and buy a good watercooling setup and see if that helps me any.

I may go to Frys and see if I can find a 3837 or 38B next. It would be awesome if I could find a chip that does 4GHz with <1.3v because then I could just stick with air cooling.
I am really not sure where the variation is coming with regards to clocks on batch numbers. Need to get a good database going.

Mine is 3838A557, and it doesn't matter how much voltage I give it, it wont do 4GHz stable.

But it runs 3.8Ghz with 1.27V.

I am on water.

Eh, its good enough. I am not one to hunt around for a chip. Sure wish I would have waited to purchase though, down $70 from what I paid. If it fails I will RMA, but if not I will stick with it.