Originally Posted by larymoencurly
If your PSU is wearing out, then changing some of its capacitors to high quality Japanese brands and maybe replacing the fan will make it just like new.
SilentPCreview.com has some articles and messages about water cooling PSUs, but water cooling is risky without using a grounded AC outlet. The catch is, I believe all certification organizations require PSUs to be safe even with an ungrounded outlet, and the kind of insulation that can be trusted for that is so thick that it prevents good cooling. Maybe water cooling just the low voltage section would be good enough. Also there have been some ATX PSUs made with internal heatpipes.
There are already plug and play watercooling solutions with certain server boards. A 1U rack that just slots in and uses quick connects to link up with the server case's hot and cold water supply lines.
These are perfectly safe.
There is no reason why you can't have a power supply that uses a solid, one piece waterblock on which the only connections are outside of the power supply's case. If the whole thing is watercooled, the entire PSU can be encased in a block of silicone for all it matters.
As for "some" being made with heatpipes, most good ones are now, not just some.
As for replacing the caps and fan on my PSU, I could do that... or I could just spend some money, swap it out, and my pc is down for an hour or two to route the cables.
Or, I could take my PSU out, take it apart, make a list of all the caps I need, put it back together, put it back in my PC... order the parts, wait for the parts to show up, take it all back apart, spend the afternoon replacing capacitors, test everything to make sure it wont start on fire the first time I plug it in, put it back, reroute all the cables again...
Yeah, I don't have the time for that, and I took a day off work... well, lets just say it would be cheaper to just buy a new power supply.