My old P4 3.0g Northwood had been getting "flaky" on full load, so picked up a 3.4 Prescott of the 'bay.... works fine stability issues gone. BUT it's ****** HOT ! Currently using Zalman CNPS7700-CU (and Zalman 700 series GPU unit on a GF6800) On load I hit 62-64 C, at 1600rpm. Idle around 44. I use to run at 1000rpm.... As quietness is very important.... gave up overclocking years ago... So should I upgrade to the CNPS9500-LED or this Zalman Reserator1-Plus Will either reduce my temps much ??? Looked at the other water kits, all look a bit fussy, and a pain to fit in a case, plus still have fans running.... Have a Xaser3 case, big but not many open areas to fit stuff like rads.... Worth the hassle or just cook the Pressy !!