ToasterIQ2000 wrote:The 120mm x 1, 2, or 3 120mm fans sized radiators I think would always need loud fans.

Nope, quiet fans are enough. The improvement in cooling between completely passive and a very small amount of airflow is huge, while that between a little bit of airflow and loads isn't as big as you might think.

Looking at your reasons for quieting, you might want to think a little bit more outside the box to get the level of quietness you need. HDDs for instance you may want to think about using a largish, remote array of disks running over a network for most of your storage (parked in say a garage or some...

If you can come up with a solution that moves heat great distances (relatively) utilizing no energy you'd be able to make a very large chunk of change. By all means try. But if you arent some brilliant engineer chances are you are going to be banging your head against a wall. It's been asked many t...

I had a shroud of some kind in mind. Ah, sudden "ping" noise in head. For some reason I was under the impression you were thinking of building the radiator into the fan blades :oops: I suspect you're asking the poor PSU fan to do too much there - they're usually weak 25mm jobbies. If you were to us...

peterson wrote:Has anyone here ever considered mounting a radiator on the PSU fan??? I mean, the PSU fan rotates allways anyway. Perhaps it could do twice the job.

In case you were in any way serious, how exactly would you make the seals work?

Yeah, my calculations i sbased on 5 l/m but i wrote 5 l/h, sorry about that. You are right in your assumption that i was calculating the diffrencese between water in and out. But if the temperature is the diffrence between CPU-core and water, I think the conclusion would be the same. 10 Degress is ...

I didn't have time to read the entire ting, but I'll do later today, but those numbers doesn't seem rigth, the seem to indicate that a flow rate of about 5 l/h gives a 10 c increase in temperature. FOr that to happen you need to output 3500 Watts of heat. AtW Those numbers are litres/minute not lit...

According to my calculations flow should almost never be a problem, but i might be wrong. Even a real flow of 100l/h should be more than enough, so I would guess bad cooling because of low flow is very rare. Blocks will still cool at low flow, but the cooling performance falls off dramatically. See...

pdf27, if I were to go the watercooling route, what kind of air cooling would I still need? Would I still need a case with excellent airflow, or would that not matter much? I will have to do some reading up on this. Probably not a lot. I've not build a WC system yet, but am in the process of assemb...

When you hit that brick wall, you are really looking at installing a watercooling or phase change system to get past it. In your case I'd really think about watercooling - particularly if you have some sort of variable fan speed controller it will give you both better temps when overclocking with p...

While thinking through plans to build a new PC (somewhat delayed due to redundancies where I work - they haven't announced who it is yet), I suddenly realised that my plans to use a passive PSU were probably barking up the wrong tree. Current plan is to use a watercooled system inside a SilverStone ...

He still doesn't believe you guys. Let's touch up on turbomachinery design 101... Most machines DO NOT operate at 7200 rpm in the X, Y, Z axis for 8 hours a day, 260 days/year. They are also significantly larger than the hard drive. The turbomachines (turbomolecular pumps to be exact) I work on rel...

whoa did not mean that hard numbers are bad, and real #s on sound are as scarce as hen's teeth rather that all 'fibbing' is (a strange euphemism for BS), whether temp, watts, noise, etc Yeah, I know - was just trying to explain why we're rather more... strict... about dBA numbers than anything else...

an outsider reading this thread would have to be amazed at the credence given to flow rates and temperatures, and the immediate skepticism with which db(A) 'values' are met Yeah, it's a holdover from the history of SPCR - the watercooling forum is relatively new, but we're all used to people tellin...

Problem is, most good CPU blocks are more equivalent than the equivalent GPU blocks, so unless you fudge it a bit you'll end up cooling the CPU rather badly. Did you mean "more restrictive than"? Yes :oops: Letting some 1/3 of the water pass the GPU on a parallell loop is bound to hurt flow through...

I'd say it probably is possible, but only for some pumps/block combinations. Presumably you'll have to be operating in a very shallow slope section of the P-Q curve, and have in practice to be operating identical blocks. It isn't like you've got any straight lines on the graph, so things get a littl...

I wouldn't be too sure about that - I reckon a fair percentage of sales so far will have been to forum members. Where else will you find large numbers of silence obsessives willing to spend lots of cash for a handful of dBs?

Edward Ng wrote:I once had a machine with these specs:

What did you do with it, hoover the floor?

Nexus every time. See the recommended fans section of the main site for more details.

First of all, Welcome to SPCR . Secondly, most of it looks good but there are a couple of places you might want to think about. Firstly, the Northbridge block. Unless you have a very hot northbridge/are doing massive overclocks there is no benefit to watercooling (passive air cooling is almost alway...

I think it's equivalent to a reservoir, to allow for the fact that water will actually escape from a watercooling system over time (mainly through the walls of the tubing, at a very slow rate).

CyberBlade wrote:Oh ... ok
This is the only wb that I'm able to BUY around here. In fact I'm having a hard time getting one. (making is always an option)

Where are you?

CyberBlade wrote:Why I'm planning on buying a Zalman WB2 water block... Was there something wrong with it?

Nothing actually wrong with it, but it isn't a particularly high performance design. There are other blocks out there (e.g. by Swiftech or Danger Den) that will probably outperform it.

1) Never heard of anyone using one - TBH a good fanned PSU will probably not add much/any noise to your system, while giving some case ventilation (your HDDs may well cook otherwise). Remember any passive coolers like the NB will also need some airflow. The only totally fanless person I've heard of ...

Acer AL718 17" TFT. Faint whine only really audible under quiet ambient conditions. High pitched pure tone, probably in region 18-20kHz (my parents can't hear noises of a similar pitch). Volume varies with the colour the screen is displaying - little/no sound for pure white screen (so SPCR is pretty...

Nice job on the silencing, but that's one of the ugliest cases I've seen in a while
Still, accoustics come first!

alexander wrote:What is a stand off?

It's a piece of metal or plastic that stops the electrical contacts on the back of the motherboard touching the case and shorting out.

Edward Ng wrote:pdf, check my original reply.

Oops . Serves me right for posting late at night!

Sounds odd to me - the pump is meant to be watercooled after all...
Hang on, is the DDC a mag drive or is there a seal on the shaft?

H20-220 kit comes with the MCP650 pump. The other two have the MCP350 pump, one has a 80mm radiator and the other has a 120mm. Suposably you can mount the 120mm outside the case on a 80mm fan thing with MCB120 Radbox, which I believe is not included and costs extra. For now I'll look for a comparis...