Originally Posted by Martian
It was tried a while ago by a forum member named Lucious I believe. He was not sucessful even with volt mods. He was able to hit 2.56 GHz stable (using RMclock) but not 2.66 GHz. Chances are there's a few 755's out there that could do it (with volt mods) but good luck finding one of those golden ones.
I still have confidence that it can be done. It would involve as you said, finding the right chip. I could have also gone a lot farther with the cooling. The bottom of the heat sink had more imperfections than the surface of the moon. If you were to lap the heatsink it might run stable. A forum member by the name of HKPolice is trying that as I speak.
The speed of the fan could also be upped via a bios hack or workaround. In my GPU overclocking adventures I stumbled upon the Fn-R combination that brought up the fan speed control bios page. It only works when you have a heavy load on the GPU, and intermittantly at that. This allows you to set the fan speed higher than you can with tools like i9kfangui or the like. The problem is, your bios will NEVER set your fan that high automatically.
I can tell everyone that the system IS bootable and benchable as long as a volt mod is used. It will not POST at stock voltage.
I can also tell everyone that these laptops (9300s and xps2) are some of the easiest to take apart and put back together that I have ever seen. I must have taken mine apart at least 25 times trying to get the right wires in the right socket. I did misplace my wire once and grounded something completely different... it just didn't boot. I fired it up a few times without tightening the screw to secure the chip in place... no problem it just didn't boot. Freaked me out at first though.
My advice to anyone who wants to try a volt mod - If you want a near sure thing, go for the 1.7. If you want to tinker at the risk of it not working, go with a 1.8 or a 2.0. If it doesnt work you can always sell it. The fact that mine still works is enough for me to say that most people won't do any permanant damage by trying.
Oh and btw my name is lucidchaos. You were close though