Slim 140mm Fan?

[Synomenon]

Anyone know of any slim 140mm fans that can be purchased in the USA?

I need a slim 140mm fan for an upcoming build w/ a Thermalright AXP-140.

This is what it looks like w/ a 120x20mm fan:
http://img24.imageshack.us/img...558/axp140120x20mm.jpg


The ledges on the heatsink at each end of the 120mm fan are for mounting a 140mm fan. So it looks like the 140mm fan would have to be slimmer than 20mm.

I'm using the AXP-140 because it covers over both sticks of RAM and the chipset heatsink on my motherboard and a 140mm fan on it would cool everything.

If I can find a slim 140mm fan, I'd also remove the noisy 80mm fan from the PSU.


Last thing. The case is a SilverStone SG05. It has a single 120mm intake fan in the front. This is what the airflow is supposed to look like:

http://img197.imageshack.us/img197/6703/geminiis.jpg


Fresh air is supposed to be sucked into the case by the front intake then exhausted by the 80mm PSU fan. However, Thermalright recommends installing the fan on the AXP-140 so that it blows downwards / into the AXP-140's fins. This is opposite of how the airflow is supposed to go.

What should I do w/ this setup (assuming I can find a slim 140mm fan to put on top of the AXP-140)? Follow SilverStone's intended airflow path (and have the 140mm fan on the AXP-140 blow upwards into the PSU (which has had its 80mm fan removed) or follow Thermalright's recommendation and have the 140mm fan on the AXP-140 blow downwards into the AXP-140's fins and onto all the components below the AXP-140?

 

[aigomorla]

the 140mm fan wont fit unless its less then 20mm...

thats gonna be hard..

Originally posted by: IsLNdbOi

Follow SilverStone's intended airflow path (and have the 140mm fan on the AXP-140 blow upwards into the PSU (which has had its 80mm fan removed) or follow Thermalright's recommendation and have the 140mm fan on the AXP-140 blow downwards into the AXP-140's fins and onto all the components below the AXP-140?

Ummm... your psu doesnt even seem like the type meant for that diagram.
If your psu had a top vent in which it could draw from the AXP, i would follow silverstone's plan.

Thermalaright never accounted for your case setup, that is why they are asking you to blow down so your board gets air.

But in a case that small like yours, it wouldnt matter. That PSU's fan alone would recycle the air.

 

[Synomenon]

Yes, the PSU is the type meant for that diagram. That's how SilverStone planned for the airflow in this case. In through the front fan and out through the back via PSU sucking hot air out. The PSU has that 80x15mm fan in it sucking air into the PSU and it has a large exhaust vent (no fan) on the back. I guess if I do remove that 80x15mm fan from the PSU and cut open a larger hole on the bottom of the PSU, that would give me 20mm (space b/w top of AXP-140 and bottom of PSU) + 15mm (width of PSU's stock fan).

 

[middlehead]

FrozenCPU has a category of 140x20mm case fans, but the only 140x15 I could find in a quick search is inside a CoolerMaster laptop pad (the NotePal Ax). The pictures make it look like that's purely the fan's dimensions though - it looks like it's mounted right in the middle of the pad rather than inside of the traditional box of a case fan.

 

[Synomenon]

I found some Aerocool 140x20mm fan on Newegg. Ordered it, but now I have to find a way to squeeze it in there. I've read threads on heatpipe heatsinks before where people mentioned that they bent the heatpipes to make the heatsink shorter. Not sure if that would work w/ the AXP-140 since the heatpipes go on both sides.

I could try running the AXP-140 passively, but I've read that its fins are too dense for running it passively. Could I simply remove every other fin to make it more passive-cooling capable?

 

[bloodugly]

for the AXP-140, Thermalright's website says this: Recommended fan: 120*120*25mm or 140*140*25mm fan.

 

[bloodugly]

Originally posted by: IsLNdbOi
I found some Aerocool 140x20mm fan on Newegg. Ordered it, but now I have to find a way to squeeze it in there. I've read threads on heatpipe heatsinks before where people mentioned that they bent the heatpipes to make the heatsink shorter. Not sure if that would work w/ the AXP-140 since the heatpipes go on both sides.

I could try running the AXP-140 passively, but I've read that its fins are too dense for running it passively. Could I simply remove every other fin to make it more passive-cooling capable?

its fins are no more dense than your typical heatsink. I think chopping it would only make its performance worse. Passive cooling only works if you have a cool running chip (low wattage), or you live up north and wear a blanket around in your house.

 

[Synomenon]

What about the info. on some sites saying that heatsinks with higher fin density don't do as well when passive? From pics. I've seen it looks like the AXP-140 has more fins (closer together too) than something like the Cooler Master GeminII.

Anyway, I would be using it with a Q9550S which I believe is 65W. I'm running a 95W Q6600 right now in a SilverStone SG03. Heatsink is an EnzoTech Extreme and it's running passively w/ only the PSU's fan cooling it (sucking the hot air away from it). I live in the desert SW too.

 

[bloodugly]

I'd just stick a 120mm 800rpm fan on it and not worry about it. A good fan at 800rpm won't be audible, unless you spend most of your time with your ear right up against your case.

 

[Synomenon]

Thanks for the advice guys. As the picture in the OP shows, a 120x20mm fan fits very well so I've ordered this fan:

http://www.performance-pcs.com...=408&products_id=22997


I've read that Yate Loons are pretty good AND this slim 120mm fan has fewer, but larger blades than other slim 120mm fans so it should be more quiet / have less turbulence.

 

[bloodugly]

You'll probably be happy with it. Its sleeve bearing, so it may get noisier after a while, it usually takes me a year or so of having my PC running 24/7 with Yate Loons. Yates are a great value, and at their price they're pretty much disposable.

 

[aigomorla]

Okey i dont think u understood what i was meaning...

The type of PSU that is used in that diagram is like This:

http://www.newegg.com/Product/...x?Item=N82E16817371015

U see how the bottom has a large fan?

That fan draws air up and spits it out the back.

The kind of PSU YOU have i think is this:
http://www.newegg.com/Product/...x?Item=N82E16817153023

It only has 1 fan on the rear that pulls air from one side and spits it out on the other.

Whatever fan u use on that sink with the psu above WONT be a good idea..
You'll have back pressure with that little room.

That is why i said you should go get a PSU that matches the model silverstone showed.

 

[Zepper]

I don't see how any fan would work well up against the PSU like that. IMO, a HSF that large is irrational in such a small box...

.bh.

 

[Synomenon]

Originally posted by: aigomorla
Okey i dont think u understood what i was meaning...

The type of PSU that is used in that diagram is like This:

http://www.newegg.com/Product/...x?Item=N82E16817371015

U see how the bottom has a large fan?

That fan draws air up and spits it out the back.

The kind of PSU YOU have i think is this:
http://www.newegg.com/Product/...x?Item=N82E16817153023

It only has 1 fan on the rear that pulls air from one side and spits it out on the other.

Whatever fan u use on that sink with the psu above WONT be a good idea..
You'll have back pressure with that little room.

That is why i said you should go get a PSU that matches the model silverstone showed.

Nope, the PSU in the SG05 has a fan on the underside / bottom, not on the rear like the one you linked to at Newegg.

Originally posted by: Zepper
I don't see how any fan would work well up against the PSU like that. IMO, a HSF that large is irrational in such a small box...

.bh.

I guess you haven't seen the large SG05 thread at HardForums. Lots of people using even larger heatsinks in the SG05 like the Cooler Master GeminII (not the GeminII S, but the original GeminII) w/ great results. I'm not going w/ the GeminII because I'd still need an 80mm fan blowing on the chipset. The Thermlright AXP-140 hangs over the chipset heatsink AND the RAM so a fan on the AXP-140 would coold everything. The GeminII however hangs just a little bit over the chipset.

 

[aigomorla]

no because this diagram shows hot air going into the psu.

http://img197.imageshack.us/img197/6703/geminiis.jpg

the only way to do that is if you had a 120mm fan on the bottom side of your psu.

 

[Synomenon]

Damn tiny cell phone keyboard keys.

 

[Synomenon]

Originally posted by: aigomorla
no because this diagram shows hot air going into the psu.

http://img197.imageshack.us/img197/6703/geminiis.jpg

the only way to do that is if you had a 120mm fan on the bottom side of your psu.

Sorry, what are you saying no to?

As I mentioned above, there is an 80mm fan on the bottom side of my PSU and it would suck the hot air up into the PSU just like the picture shows. That's how all of SilverStone's Sugo cases work airflow-wise.

The other Sugo cases just happen to be larger and can fit standard ATX sized PSUs. The SG05 is much smaller and uses SFX PSUs.

 

[aigomorla]

oh then nm..

i never saw a psu with 80 mm fan in the bottom.

 

[Synomenon]

It's a SFX PSU, not a standard ATX.