Hi,In my quest for a quieter PC, I am now looking at either a peltier cooler, or, something I am not overly keen on, water cooling.I have found a reasonably priced peltier cooler, but I just thought I would see if anyone has had any experiance with this technology.This is the cooler I am looking at > http://www.pcnextday.co.uk/product_detail....OL47&pgroup=CPUCheersDan.

Peltier Cooling is a way to transfer heat from the surface of something like a processor to a heat sink, more effeciently. You will still have to remove the heat from the heat sink, so you will still need a fan to do that job, which will put you back in almost the same place. Liquid cooling is another way to remove head but then you need a device to remove the heat from the liquid, which in some instances is a fan again. Why not just look for a quiet fan to mount in your PC case in addition to the one you already have, for more air flow.

Bob,I already have a "quiet" fan, but its just not queit enough for my liking, my PC is in our bedroom, and the CPU fan still makes quite a din when the missus is trying to sleep ;).Apparently, the fan on this peltier cooler is very slow running, and as a result very quiet.I was also looking at the Zalman passive water cooler, it has no fans, but a big aluminium cooling tower, but I just do not like the idea of having water in/near my PC.Still for

Can you reduce the CPU fan speed in your BIOS? My CPU fan defaults to between 3000 and 5000 RPM, but if I set the Q Fan Control to 11/15, it idles at 2200 RPM and is barely a whisper. Granted, CPU temps are higher as a result, but I long ago gave up caring what the CPU temp is, particularly when thermal shutdown temps are around 90C and I can't get mine past 55C.Gary

My fan does speed up and slow down according to the CPU temp, but the CPU does ran pretty hot, Prescotts are notorious for it.Dan.

First step water cooling. Then you can start thinking about adding peltiers.Water transfer heat much much better than air so it will help. Also using big radiators mean you can cool passively quite well without noisy fans.Peltiers however will not help with your sound issue. I would only use Peltiers if I am very serious about my overclocking and don

Another thing to watch out for: you don't want to exceed the heat transfer capacity of the PJ...had one in use a while back that was designed for a Celeron I think...the P4 CPU generated more heat than the PJ was able to transfer, and it got hot fairly quickly.Really, I think the usefulness of the PJ is to actively and aggressively transfer heat away from the surface of the CPU package...it will produce a much steeper thermal gradient across the junction than across the mechanical junction of a normal heat sink...but noise will be a function of the apparatus used to transfer the heat from the back side of the PJ, which is probably going to be a finned heat sink and fan much like what you're trying to replace.RegardsBob ScottATP IMEL Gulfstream II-III-IV-V L-300

Also what I forgot to mention is that with watercooling if you watercool your CPU it won