Finally done but not recommended. Shuttle SN41G2 Custom made internal 80mm - 120mm fan shroud.

[ckaiy_cool]

From the top you can se the space from drivebay.
You can see the tape on the shroud to not have contact with graphic card.

[ckaiy_cool]

front with the fan controller.

My shuttle is really silent that it sound like its only the harddrive giving noise.
But im not that happy with the temps.

System = 47 Degrees
CPU = 57 Degrees
Board = 51 Degrees
This is on idle.

Dont know if its the angle of some sort thats doing something to make the air move a bit wierd.

[craigbru]

Great aluminum work!

Do you think the shroud may too restrictive to the airflow?  A small space will only move so much air, regardless of the fan.

[ckaiy_cool]

thanks for the reply. The work on tha aluminum was pretty simple thanks to ZUT50 about the score the edges.
Man i really put alot of effort to this and now i feel like it was a wast of time.
When the lid is of i get the temps on idle.

System = 34
CPU = 39
Motherboard = 37

Don't know but i think i will go for the noctua 80 mm fan that is quiter than nexus 80mm and a little stronger in air blowing.

Doooh!

[craigbru]

So, you get great temps with the cover off?  It sounds to me like it might be simply the lack of fresh air...  It's most likely just pulling already warmed air through.  Maybe you need to get some more ventilation in the case.  Possibly even some ductwork to route fresh air from the outside.

[chaoswynd]

Grab one of those Sunbeam acrylic cases and mount an additional 80mm intake with it.  Should help to privide for significantly more airflow.  Might want to throw some filters on it before hand though.

example: http://www.xoxide.com/sunbeam-shuttle-xpc-mod-clear.html

[ckaiy_cool]

If someone is looking for a fancontroller i can recommend the Akasa fan controll jr. "AK-FC-06BK"(Black)  or "AK-FC-06SL"(Silver) so you get rid of the shity floppy drive space.

[ckaiy_cool]

i thanks for the tip of the akryl case but i live in sweden and don't have any shippers over here with those covers. however it would be to expensive.
I have bought al materials that i used for 76.34 US-dollars. and thats inclusive the fan and fancontroller.

[hugh]

you kidding? that means like what? $40 for a piece of aluminium?... or were the fan and such real expensive?

[ckaiy_cool]

i don't know how to count the us-dollar really. but i can say that the aluminum, nuts, glue, screws and bricks didn't cost more than the  noctua fan

[elitekey]

...When i'm done i will run the sketch through a scanner with measurments so that others can take advantage of it

hey, where is the sketch?

[tartin]

thanks for the reply. The work on tha aluminum was pretty simple thanks to ZUT50 about the score the edges.
Man i really put alot of effort to this and now i feel like it was a wast of time.
When the lid is of i get the temps on idle.

System = 34
CPU = 39
Motherboard = 37

Don't know but i think i will go for the noctua 80 mm fan that is quiter than nexus 80mm and a little stronger in air blowing.

Doooh!

Don't get discouraged, you can get this system of yours working quiet & cool!

A few questions:-
- What was the fan's RPM at these readings?
- Which NF-S12 do you have? Is it the NF-S12-800 or the NF-S12-1200?
- Were you running the fan with the U.L.N.A.?

It's hard to see from your pics, but have you removed the grill from the rear panel?
Removing the rear grill will help lower your CPU & system temps by about 2°C.

Have you installed the nForce2 Cooling Patch by The NGO Group?
I've found it reduces idle/load  temperatures by about 2°C on Shuttle & ASUS nForce2 motherboards and about 10°C on a Gigabyte nForce2 motherboard.

Because you are using a Duct Reducer, the 120mm fan's efficiency is being hampered somewhat.
I also considered what you have done when I modified the cooling in my SN45G (see Sig.), but chose the run two identical Nexus 80mm fans in a push-pull configuration instead. This set-up has served me well and I get idle CPU temps of +21~22°C above ambient temperature with both fans at ~1100RPM (i.e. 20°C room temp -> 41~42°C CPU temp).

[ckaiy_cool]

Don't think i wont release it because the resaults.

I noticed one more thing.
Does any one have problem with cpu showing wrong mhz, mine barton 2800 + is showing 1250mhz when it's actually suppost to show 2075mhz.
This is only when i controll the fans.
I fix it by shuting down the computer and remove powercord and press start button once while it's shut down.
Reseat cord and pressing start and the processor shows right, but when rebooting computer it's showing 1250 mhz again.
My following modifications i done is:

PSU fanreplacement. (Have fancable going to a fanmate on motherboard before fancontroller.)
ICE fanreplacement. (Cable was going to the cpufanmate on motherboard now it's going to the fancontroller.)

Any suggestions.

[ckaiy_cool]

My noctuafan was moving in about 1000 RPM and there was no change when i moved it to 1200RPM and lover speed was out of the question.
I have the NF-S12-1200 i wasn't using the u.l.n.a adaptor since i have the akasa fancontroller.
And no my fangrill is cutted out which made a significant resault with the 80 mm fan.

Before this modification my cpu was at 36-42 idle and 48-54 when at full load i think it was perfect exept it was a little loud with the papstfan and psu 40mm adda fan.
I don't like the push pull configuration since the internal things are coming outside the box.

[ckaiy_cool]

I noticed a small gap between the shroud and the rear case so i put some silvertape that covered the area and now the the temps seems to be normal the cpu is at 45-46. system is around 40-41 and motherboard the same.

I used the cpu motherboard fanmate and now i don't get the cpu wrong showing so it's probbably something to do with that. now i controll the psu fan instead.
Will let the computer be on in an hour and report resaults later.

[DickH]

I have not been on in a while, but I saw this and have to post.  Your shroud is a nice idea, but you have a huge flaw that has somehow been missed.  The idea of a shroud is to direct airflow for whatever reason and your shroud is missing a bottom.  You are losing so much air because of that.    Try using tape to close the bottom and see if it helps, I can almost promise you will see better cpu temps.

[ckaiy_cool]

If you look at the original design you can se that there is no bottom plate at the original design that makes the air direct to the rear so that's why i didn't do any.
By the way been idle for a hour and the temps are.

CPU - 43
System - 39
Motherboard - 40

[DickH]

Ok ok, im just saying that you could be getting more from the fan  by just having a bottom.

[ckaiy_cool]

This modd sucked ass. LOL

Temps in full load for half an hour.

CPU - 58
System - 51
Motherbooard - 53

Overall this has been fun to experiment with and i must say im proud of my effort i've done.
Thanks everyone for the help and hope that someone maybe been a bit inspired to make own modds this is my first modification that is total custom and it's not the last B)

Have a nice weekend everyone.


By the way does anyone else get any wrong when controlling the ice fan through a fancontroller or speedfan like i have with the cpu barton 2800+ showing 1250mhz.

[hugh]

Ok ok, im just saying that you could be getting more from the fan  by just having a bottom.

what dick said. i commented on this back at the beginning of the mod, and you said you would be putting a bottom on yet it doesn't look like you have, you might as well not put a fan in the case if you're not gonna have a sealed duct...

[ckaiy_cool]

If you look at the original shroud the only thing it's sealing is about 20mm of the fans 25mm wide at the bottom and i can say that the fan is holdin the entire shroud stiff and strong so i don't understand why it should make such big improvment, i'm pretty sure that the air is crossing inside the shroud because of the angles and making it rotate in some kind of cirkle.
The original shroud makes the air blowing straight through the fins and out the back.

[hugh]

with the shroud you need it to be as air tight as possible for pressure reasons.

here is a very simple analogy

turn on a hose pipe, and then make a big hole in the hose somewhere along the line. water will come out of the hole so the water coming out of the end won't have as much pressure, i.e a weaker flow of water

[ckaiy_cool]

I understand what you mean but if you take a look at this pic you understand what i mean.
How ever this mod i don't recommend any other to do in future i would rather go to a 92 mm mod since then the fan gets centered to the ICE.

[DickH]

Just try implementing a bottom, tape cardboard down there and check temps.

[Zut50]

Hi ckaiy, very nice work. :-) Its a shame about the temps, but don't give up yet. Not everything works the first time.

I agree with DickH that you should just try a bit of cardboard.