How do you know? Have you tried? I've seen some on OC Forums with about a 90ish degree angle bend and it's still fine. 3/8" is fine for normal use, but it's not so great when it comes to water flow...
ive installed a few 1/2" setups and while they are the best for waterflow they are still extremely hard to get the bends you want without the tube collapsing. most times i had to used at least 2 elbows to make it work.
please dont .. i tried it , and it showed as a x800 xt PE , ( i have X800 XT) and then it ran hot and crashed alot , so i tried to go back and fried it , and waited 6 agonizing weeks to have warranty work done on it.
how is the amd x2 working out for ya?
thats because you didnt use an aftermarket cooler. You need an aftermarket cooler. My friend has his x800Pro flashed to an X850XTPE with the zalman cooler.