In my opinion, the best PSU's on the market are from (in order) PC & Power & Cooling, Enermax, and Antec.
I wouldn't have said that about Antec in the past, not until the True Power Series was released, because of inconsistent quality levels. For instance, I had far better results with the older 300W Antec PSU's (which you nearly couldn't kill) than the newer 400W "P4 ready" units. I can remember hooking up a brand-new 400W model to a rig with two Cheetah 10,000RPM SCSI drives, and I couldn't even get the drives to spin up. And not surprisingly, I ended up having to RMA quite a few of these units. Not all my customers listen to me; some have minds of their own.
But I've been willing to give the newer True Power devices a try, and I've been happy with the end results, especially now that the PSU's have dedicated output circuits for each line. This means that all the power that can be drawn from the PSU via each line combined, which enhances stability (unless you load the whole PSU above its rated wattage.) Um, don't do that.)
However, in comparison to Enermax, I do not believe that their system of dual-thermally controlled fans is any better than what Enermax has already been offering for several years. What's the sincerest form of flattery?
My take on a review I saw of an Enermax EG-365P-VE at <A HREF="http://www.silentpcreview.com/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=9&page=1" target="_new">SilentPCReview</A>: Be advised of this. There are testing conditions performed by a single individual, and there are real world conditions that are encountered by people who work in the field on a regular basis. As a result, I can say this:
3000RPM for a fan is NOT exceptionally loud. Consider it a moderate level. 7200RPM, on the other hand, can really get on your last nerve. I should know; I'm sitting here next to a system with a Delta on my processor heatsink, and people are always sneaking up on me because I can't hear them.
32 decibels is not that loud, either, and the great majority of people who have a fan in a PSU that runs at this noise level never pay any attention to it once the computer is running ... nor do they hear it when listening to music or playing a DVD. They only notice it if it stops.
However, there are some extra options if you can hear in frequencies that only affect canines, such as someone grinding their teeth across a crowded room.
<A HREF="http://www.dynamat.com/" target="_new">Dynamat - the premium engineered sound control material</A>
<A HREF="http://www.extremetech.com/article2/0,3973,506,00.asp" target="_new">Silencing Your PC</A>
Enermax makes a series of PSU with a pot on the back to control the 80mm fan in the rear, such as the EG365P-VE FMA, the <A HREF="http://www.enermax.com.tw/eg651p-ve-fma.htm" target="_new">EG465P-VE FMA</A> and the <A HREF="http://www.enermax.com.tw/eg651p-ve-fma.htm" target="_new">EG651P-VE FMA</A>. I am particularly fond of this series, both in terms of performance, and because the air flow can be adjusted manually. With a good internal cooling system to keep the thermally-controlled internal 92mm fan running at a low level, these PSU's can be adjusted to be nearly inaudible.
I am also a big fan of the Enermax manually adjustable fans, which can be spun down from 3000 to 1000RPM's (+/-10% adjustable). Position them correctly in a desktop case, and combined with the Enermax FMA PSU, you can adjust the system noise to a very low level, and balance the airflow moving through the case. All cases have "hot spots", and being able to decide which fan has the higher RPM can make a big difference.
My main Intel rig, which has <i>five</i> of these fans (not counting the two 60's in the rear) plus the 550W PSU can barely be heard when switched on. The Maxtor hard drives and the optical drives when spinning up are louder than all the fans combined. That's an actual, real world condition. Truth.
There are other options for excellent fans, too ... ThermalTake, Vantec, Pabst, and Panaflo being the best high performance "silent" fans that come to mind.
It's the case fans that usually cause more noise than any other, with fluid and sleeveless fans being the quietest, and ball-bearing fans making the most racket. Be aware, though, that ball-bearing fans usually last the longest before needing a replacement.
Cases: If you like Antec cases ... go check out <A HREF="http://www.chieftec.com/products/products.htm" target="_new">Chieftec</A>. For the most part, many of their cases are identical to similar offerings from Antec, and the prices are usually better. The Dragon series is a popular choice, with my only complaint about these cases being how close the drive bays are to the mainboard ... I prefer long cases to those that are tall and slim. I dislike removing the hard drives just to get at the video card, but for some people, that's just not an issue.
Hmm... In general, if you put enough various drives to fill a mid-tower case in a full tower case or even in a server case, would this kind of extra room and space have great "cool-friendly" benefits?
Yes, to a certain degree. Having extra space between components is a good way to help them get rid of the heat radiating from the devices. However, that does little good if the cooling solution is shoddy. It may take longer to heat up the ambient air in the case if it is larger, but you still have to find a way to get cool air in, and the hot air out, or you'll just end up with a big, hot, stagnant case.
Would there generally be lower requirements for case fan cooling (not including heatsink fan and PSU fan, but maybe also including harddrive and video card fans) if this were to be done?
Not in my opinion. There's a lot more air in a big case that must be moved, which means you need more fans to get the air out, instead of letting it heat up and hang around the devices and the mainboard.
Of course, getting something really small and packing it with components is not a good idea either, as cases like this have little room to allow sufficient air flow, and the components are usually too close to together for any efficient cooling to take place.
I prefer to create a small amount of negative air flow in a case, which means it will be drawn in through the front and exited expeditiously out the back. The problem is that this kind of vacuum also causes air to be sucked into the cabinet from every opening, floppy drive's, CD-ROM's, modem phone jacks, etc. This is why I normally tape all opening shut on the inside of the case, always use aluminum filters to keep the fans and the interior as clean as possible, and clean the entire case once a month. Heat and dirt kill computers.
So what's the best route for a desktop system?
How about a well-made mid-tower, with a good cooling system. Nothing that's going to create a wind-tunnel in the case laden with dust and cat hair, but not something that just sits there and allows your components to fry in their own juices.
My favorite mid-tower cases:
Chieftec
Antec
Codegen
Enlight
Enermax
AOpen
Thermaltake
Inwin
Leadman
Skyhawk
Aluminum:
Cooler Master
Lian-Li
Enermax
All in all, I probably end up using more Enermax, Chieftec, Enlight, and AOpen cases than all the rest combined. I do love aluminum cases (despite the price), because they are consistently well-made, light in weight, and have good internal layouts (plus, they look great) ... but as for cooling, they really don't make much difference. You can cool a well-built steel case just as well as one that is aluminum, IMHO.
I'll include server cases later, if you wish, after reading this post.
Toey
<font color=red>First Rig:</font color=red> <A HREF="http://www.anandtech.com/mysystemrig.html?rigid=17935" target="_new"><font color=green>Toejam31's Devastating Dalek Destroyer</font color=green></A>
<font color=red>Second Rig:</font color=red> <A HREF="http://www.anandtech.com/mysystemrig.html?rigid=15942" target="_new"><font color=green>Toey's Dynamite DDR Duron</font color=green></A>
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