Does coolers produce harmful magnetic fields for computer?

[AstroGuardian]

Hello,

I have this 12cm cooler. It can be mounted on a back of a computer case. The case is Thermaltake SViking. I want to use this cooler as an exhaust cooler.
But the cooler works on 220V and 10 Amps. I read somewhere that cooler produce EM fields. So can this cooler be harmful for the computer electronics (MB, PCI cards, CPU, HDD's)?
And whats is the range if the EM field is too strong?

Thanks

 

[Navid]

Originally posted by: AstroGuardian
But the cooler works on 220V and 10 Amps.

10A from 220V is a very large value. That is 2200 VA (Apparent power). Your entire computer uses something close to that!

Where did you get those figures (220V and 10A) from?

 

[futuristicmonkey]

<div class="FTQUOTE"><begin quote>Originally posted by: Navid
<div class="FTQUOTE"><begin quote>Originally posted by: AstroGuardian
But the cooler works on 220V and 10 Amps.</end quote></div>
10A from 220V is a very large value. That is 2200 VA (Apparent power). Your entire computer uses something close to that!

Where did you get those figures (220V and 10A) from?</end quote></div>

Anyone's pc - and I mean anyone...I don't care if you have octuple-sli or whatever -- there is no way in hell your computer is going to be using anywhere near 2200VA. Think about it, that's a ~2200W power supply. Not even close, with inefficiencies and whatever else factored in.

About that cooler, why would you want to cool the exhaust of your computer? If anything, cool the intake -- unless your computer's home is some _very_ odd/extreme environment - which I cannot imagine.

Edit: That "cooler" uses more power than an average refridgerator. You sound like you're in Europe, with ~230V line-to-neutral service. Here, in North America, fridges are commonly connected to 115V, 15/20A circuits -- which would be wholly inadequate for this "cooler" of yours. I'm interested in more details of your setup/application.

 

[Navid]

Yeah, you are right. I was thinking 200, not 2000!
As I said, that is a very large number and I am curious where the figures came from.

 

[AstroGuardian]

Well those figures are written on the cooler itself. The thing is that i have 5 disks in my computer and i want to cool them as much as possible since i have mission critical data in them. If this cooler is the exhaust cooler then it will draw air from the front of the case where the disks are located. So it will super-cool them. And that's what i need.

I found some tech specifications on the internet about that model of cooler. I don't remember the model number but i will check when i get back home and will write the link where you can see it and it's specs.

I mentioned that this will be mission critical machine. You have it's configuration. And i don't want to screw it up with some crazy over sized cooler. Do you think it can be harmful? I also plan to mount it on the back of the case but on the outer side. Will the case than act as a Faraday cage?

 

[Navid]

You keep talking about a "cooler".
Do you not mean a "fan"?

Can you not use a 120mm fan and power it from your PSU (12V)?

If your main objective is to cool your hard drives, your best bet is to place an intake fan to blow right onto them.

 

[NeoPTLD]

Post a picture and model #. Something is not right. There is no way in hell a 120mm fan can be 2.2kVA.

60Hz fan produces unacceptable level of interference if you use a CRT nearby (and you'll know it form the shaking on the screen). Otherwise you're fine.

 

[PottedMeat]

Yeah, 220V@10A sounds like a damn window mount air conditioner.

All you need to do is make sure air clearly flows into the case over the drives and blown out the rear.

 

[lumbus]

10 amp at 220 V is more than the air conditioner I just bought... It's labeled "Cools a livingroom" on the box.

You say you will "cool the exhaust"... I'm sorry, that makes no sense at all. You're going to cool the hot air coming out of the case? You do realize that any cooler also makes heat (it makes more heat than it cools, in fact, since it's less than 100% efficient). In the case of an air conditioner, you make sure that the heat goes outside of your house. If you blow cool air away from your computer, you'll probably be heating up your case. If you're going to use this cooler, you need to mount it in such a way that it blows cool air into your case.

I would also guess that vibrations and excessive noise would be a bigger problem than EM fields. This thing has some sort of compressor, right?

 

[AstroGuardian]

I don't have the model number with me at this time. But i will check it and will write it so you can see the specs yourself.

This fan is more like a big and powerful 120mm fan like those mounted on servers. It is fast, loud and moves a lot of air.
If i mount it on the back of the case for exhaust it will cool the entire system and the HDDs will be the first.
I don't mind the heat and noise produced by this fan nor i use a monitor close by. The PC will be locked in some kind of a "server room" and i will operate it remotely.

I must check the specifications again. Or i will post the site where stats are written and you can see by yourselves. I will do that tonight (i am located GMT+1

Thanks for the interest to help me guys. I appreciate it.

 

[lumbus]

So it's just a fan? I thought you were saying it was something that actually COOLED the air. If it's just a fan it'll work to use it on the exhaust. There's no way it's a 2000W fan though. That would probably make your computer into an airplane.

 

[Nathelion]

and I hope the room your computer will be in has darn good air conditioning in and of itself if you're going to put a 2000W gadget in there. That's a freakin huge heating element

 

[AstroGuardian]

OK, so here is the model number and specs:

manufacturer: Comair Rotron
model: MX3B1 (i found some specs in the internet using this model name)
And what i overlooked is that this is 220V and .10/.09A... does this mean that it's 0.1 or 0.09 amps? and not 10 amps?
Impedance protected (what does this mean anyway?)

So what do you think?

 

[Modelworks]

yeah thats 100milliamps not 10 amps.
I was like the other posters, wth kind of cooler is using 2200 watts

Impedance protected means that if the fan blade stops turning because something gets stuck in it the current to the windings will still remain the same.
A motor without it would have a current increase , maybe to the point of burning up the windings.

You might consider looking at server fans. Most of those are 12 volts, would be better than messing with 220volts.

On any pc I have built with lots of hard drives, I've found that just using 80mm fans in front of them keeps them more than cool enough.

Anything I considered mission critical I wouldn't overlcock and if it was important enough I would use ECC memory.

As for the magnetic field, I wouldn't use any shaded pole type motor as these have a slightly stronger field than other types of motors. I saw one of these affect a monitor display.

 

[highwire]

A 2.2kva 120mm fan would probably produce about 10kg of thrust. Is "liftoff" a part of this "mission"? Or maybe your numbers are wrong.

 

[covert24]

Originally posted by: highwire
A 2.2kva 120mm fan would probably produce about 10kg of thrust. Is "liftoff" a part of this "mission"? Or maybe your numbers are wrong.

i loled

 

[AstroGuardian]

yes, i apologize. My numbers are wrong. It's not 10Amps but 0,1Amps

So did you check the model? Will it produce harmful EM fields?

 

[Mike2002]

I doubt the fan would produce any problems with em fields, but you will have a problem connecting the fan to a proper power source. I would just buy a 120 mm fan from newegg with a standard molex connector so it'll plug right into your power supply. You won't have to deal with having to plug your one cooling fan in along with your computer.

 

[bobdole369]

I LOLed so hard when I realized that this was about a 220V fan that pulled 100ma, not a freakin 2200W A/C unit, which is bigger than some window A/C units I've seen.

Short answer - Don't worry about EM at that current level. It's fine.

 

[AstroGuardian]

Thank you guys.... You are the best arround