lm wrote:.., simpler to make, ..

SlipperySkip does not do 'simpler to make'!

To paraphrase JFK ; he chooses to do these things, not because they are easy, but because they are hard. (he just makes it look easy)

Wonderful attention to detail Jeffrey

That grill just finishes the project perfectly - another collectors item

Nice elegant design :) I just wonder, was the simplicity in style of the 50's and early 60's in USA inspired by the post war austerity designs (like the Utility designs of the immediate post-war period here in the UK and Europe) ? The designs always look cheap to build (like most Ikea stuff today ;)...

Not sure what to do next Does it get warm/hot with no load? I'm thinking your power meter may be reading/displaying fast peaks rather than a true power reading. If it is drawing 20watts from the mains it will be generating 20watts of heat so will get significantly warm. If it runs cool to touch it ...

I wonder if this coiuld be put to use in a silent pc?

http://www.dyson.co.uk/fans/

Like this (plus ssd):

http://homepage.ntlworld.com/bill_todd/PVR/passive.html

Excellent Job

It's actually kind of spooky at first

.

Those running fans, even slow fans, will not understand.

even if I remove half ore more of the fins :) I wasn't actually suggesting that. If you go for a large flat heat-sink like this: http://homepage.ntlworld.com/bill_todd/SilentPC/_wp_generated/ppeb0a9ece.png The problem will then be how to get the heat from the cpu to the heat-sink; I wonder if you c...

OK I received the heatsink today an I already installed and tested the bad news is that even with 25Watt it will not be able to run passive.

That heat-sink is designed to have forced airflow (i.e. in close proximity to a fan). The close fins cause too much drag for efficient convection cooling.

A-Tech Fabrication has created a fanless design for this mobo. You can see it here.

They're really very nice cases Pity about the price!

If you want to hide the fact that it's made of wood, give it a couple of coats of primer (with a light sanding in between) using a polyurethane foam (sponge) roller (apply the top coat with a new sponge roller). The sponge roller will give the paint a non-reflective textured surface that'll hide mos...

My other question is: do you think this setup will be sufficiently cooled completely passive? I'm sure it's possible, but you'll have to design the whole system with some care for it to work well. What CPU heat-sink do you propose to use? I have not seen any thermal resistance figures for PC type c...

At the risk of teaching granny... You'll need to pay attention to sealing the box; making sure that there is no gaps where the sound can escape prior to being 'forced' along the baffles, and pay attention to the material used for the case to stop sound transmitting straight through the sides. e.g. M...

having the air snake round a channel on the outside of the case before entering the main body then have a fan suck the air out through the heatsink and through more gentle twists round foam. The second idea would be much more fun to build, so I'm leaning that way. I suppose the question here is: Is...

Best thing I've seen here in ages :) Love the HDD enclosure - I looked at Al turnings prior to playing with my gel packs, but using brass, a much better material since it is both springy and conductive, never occurred to me :) Next, you have to move towards fanless cooling - build a chimney around t...

Regarding the foamed rubber, are you saying that I should put this in the enclosure for the drive to rest on?

Yes. The gel pack will not support the drive it'll slow squash as the gel move in the bag. You need to support the weight of the drive with something compliant but un-squashable.

What happens to drive temps when the PC is turned off? It falls ;) There is considerable thermal mass in the gelpack so the HDD stays warm for a while. The reduced rate of temperature change is actual very good for the drive it reduces the thermal stress. You may find that, if the overall surface a...

do gelpacks work for 24/7 systems or just ones that are only on in the day? (slow to warm up but need to cool each night or become ineffective) The gel pack works in two ways: It kills sound by absorbtion and the viscous gel is heavy, so adds mass, so damping higher frequencies considerably. It con...

http://hackedgadgets.com/2008/10/24/com ... k/#respond

I like it

P.S. have you thought of using a Volvo heater rad? (they are made of aluminium). Shouldn't be hard to find in Sweden.

Mike, I worked in the recording industry for 30 years and been involved with the construction of a few rooms (although none were anechoic or designed with the noise floor that you're looking for). Some random thoughts; Room in room: This will expensive and difficult to do properly. You'll need to co...

Re: Doors Mike, I suggest you replace any light weight door with a half-hour fire check door (preferably two in separate frames). They're are commonly used in offices and I've seen them used to good effect in studio's (where the cost of lead lined doors was prohibitive) BTW impressive results so far...

Instead of 2 rows of pins it's 1 big row of teeth

Have a close look and I bet you'll see that it is an edge connector adapter. Pull it gently.

http://www.aavidthermalloy.com/products/heatpipe/operate.shtml Most pipes use water and methanol/alcohol as the working fluids. Depending on the wick structure, pipes will operate in environments with temperatures as low as -40°C. Upper temperature limits depend on the fluid, but 60°C to 80°C is...

Cistron wrote:Hmm, I'm wondering about the EU (CE) electric shielding requirements (or something along those lines, I'm a layman for electrics). Will those be met?

Highly unlikely ( in my opinion) I wouldn't expect to see in europe

Why not? Pressure possibley - there's usually a low pressure in a heat pipe, it would require thick-ish copper (i.e. more expensive/less profit) to prevent a single pipe distorting across a flat surface. There are examples of flat heatpipes around (e.g. http://www.norenproducts.com/Heat_Pipes/what_i...

My PVR machine , a ibase itx mobo with a p4 mobile cpu, draws almost as much power in sleep as idle! (since sleep keeps most of the motherboard running). I now use Hibernate, which effectively uses the same power as 'off'. It might be a good idea to borrow a power meter or current meter to measure t...

Fayd wrote:as far as EM shielding the case, maybe a thick coat of paint over the interior surfaces with a metal derived paint?

Expensive, compared to ally foil.

Is that an un-screened mains power supply? YES That's a really bad idea Ishi. The screen is there for safety and to stop interference. you really need to work out a way of completely shielding the PSU before you use the PC properly, let alone sell it (I realise ATM you are still developing the proj...

Is that an un-screened mains power supply?