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Fan configuration for 900D - Am I an idiot?

post #1 of 7
Thread Starter 
Hi guys, this will be a long post, but I am going to make it as easy to follow as I can.

I have a watercooling thread in progress already, but I figured I should figure my case fan setup here, separately. On top of my watercooling loop, I want a solid, low-noise fan setup plan for my new case. For me, silence is king.

The case I plan on is that Godzilla monster, the Corsair 900D.
I know this case already has front and rear fans, but I will assume they are ‘loud’ and plan a scenario without them.


Top: 2 x 140mm –or- 4 x 120mm
Rear: 1 x 140mm
Front: 3 x 120mm
Radiator: 8 x 120mm (Push/Pull) – Setup just like the rig in the picture. Both sides of the case at the bottom have mesh the fans can breathe with.

OKAY, so this is the setup I have in mind. Please feel free to recommend a better performing product, or a similar performing product that costs less money!

Top: 2 x Noctua NF-A14 ULN – connected together with rear to a 12v molex
Rear: 1 x Noctua NF-A14 ULN – connected together with tops to a 12v molex
Front: 3 x Swiftech Helix120-PWM (connecting to 1st Switchech 8way PWM splitter)
UT60 480 Radiator: 8 x Swiftech Helix120-PWM (connecting to 2nd Switchech 8way PWM splitter)


The Swiftech 8-Way PWM splitter I have in mind is shown below; this hooks into the PSU so I don’t have to worry about motherboard PWM amperage.



I am using an Asus Maximus V Formula motherboard that has 8 fan headers. All of these fan headers are 4-pin, so I assume that they are all PWM ready. I looked over the whole manual and did not find anything but the diagram of what each pin in each header is (page 1-41). It only states that the CPU_FAN maximum is 1A.

CPU_OPT
CPU_FAN
CHA_FAN 1,2,3
OPT_FAN 1,2,3 (beside each of these is a 2-pin OPT_TEMP header)

("OPT" means "optional fan" according to the manual)




Top + Rear: SO, I figure I can daisy chain the 3 x 140mm exhaust fans together with a single 12v molex.
At max speed the Noctua NF-A14 ULNs run @ 800rpm, while the low noise adapter could reduce them to 650rpm. I do not think 800rpm from a 140mm fan would be audible either way, but these fans sure are ugly compared to other liners... And painting/dyeing them voids the warranty and could ruin the balance.

Front: The front 3 x 120mm Swiftech Helix120-PWM will connect to the 1st Swiftech 8-Way PWM splitter and that PWM connector will connect to CHA_FAN1.

UT60 480 Radiator: The rad 8 x 120mm Swiftech Helix120-PWM will connect to the 2nd Swiftech 8-Way PWM splitter and that PWM connector will connect to CHA_FAN2. I will also connect a temperature cable from OPT_TEMP2 next to it, and connect that to the radiator itself.


THIS way I believe Asus Fan Xpert will be able to control my front fan speeds (3x) depending on CPU temperature (where I could set rpm to rise at a designated cpu temperature threshold)
It would sure be nice if Asus Fan Xpert controlled the radiator fan speeds (8x) according to my radiator temperatures (where I could set rpm to rise at a designated radiator (OPT_TEMP2) temperature threshold)

Closing Thoughts:
- I would sure like to use the Noctua NF-F12s in place of the Swiftech Helix fans for my eleven 120mm, but that would cost nearly twice as much, and the color scheme would be terrible.
- I know the Noctua 14's clash with the color scheme as it is, but are there any other 140mm exhaust fans that would work as well as these vertically and horizontally? The TY-140 has to many bad reviews for me to even consider.
- I would sure like to the use the Scythe Gentle Typhoon AP-15's, but they do not come in a PWM form, and I know of no other way to make my motherboard control my fan speeds than to go the PWM route.
- I know splitter PCB boards exist for voltage controlled fans, but then there's no way to hook up a board with 8 fans to a single fan header without burning out the header, so being plugged directly into a 12v molex would mean max speed/noise ALL the time.


THANK YOU for taking the time to read all of this!


SO, how does this all look? Did I make a terrible assumption or error in here somewhere?

Edit: A friend asked me "Why are you even doing this? You hardly game right now".
The answer is simple.
I read these water cooling forums for so long, and saw so many pictures of your rigs that I just knew down to my bones "I NEED THIS".
I'm a victim.
Edited by Dragon-Emperor - 4/4/13 at 5:34am
post #2 of 7
Hi my names Rayleyne, I am a watercooler and as such i am too a victim, Please join the club.


Fan setup looks fine from brief glance.
MEGATRON
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 4710MQ P170-SM-A Nvidia GTX 980M @ 1470mhz 32GB DDR3L 1600mhz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD 840 EVO Msata 250GB SanDisk SDSSDX120GG25 HGST 1TB Blu-Ray 
CoolingOSMonitorKeyboard
OverCharged Cage fans Windows 8.1 + Virtual Machines Modified 1080P glossy IPS 60hz Stock 
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240 Watt Brick 
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MEGATRON
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 4710MQ P170-SM-A Nvidia GTX 980M @ 1470mhz 32GB DDR3L 1600mhz 
Hard DriveHard DriveHard DriveOptical Drive
Samsung SSD 840 EVO Msata 250GB SanDisk SDSSDX120GG25 HGST 1TB Blu-Ray 
CoolingOSMonitorKeyboard
OverCharged Cage fans Windows 8.1 + Virtual Machines Modified 1080P glossy IPS 60hz Stock 
Power
240 Watt Brick 
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post #3 of 7
Welcome! I'll try to help.

Good choice on PWM splitter

I can't be sure what 4pin sockets are PWM. Pretty sure the CPU_Fan is PWM.. and probably CPU_Opt Often the others have no PWM. Test the others to see if the 4th pin is actually PWM. I know of case that even though manual says it is the 4th pin is NOT pwm pin/signal.
Last page of this thread
http://www.overclock.net/t/1353732/trouble-with-pwm-control-on-chassis-fan-headers-w-pwm-splitter/30

Why not have all the case fans PWM and controlled using the Swiftech splitter? Than you can use cheaper fans that will be quiet at low rpm but if GPU or whatever get hot they will speed up. wink.gif

Radiator temp with be directly related to CPU temp it cooling so you can use CPU temp to control radiator fans. Same as automobile industry does.

Could you please give me the bad reviews of TY-140 fan?

You might want to consider the Scythe Slip Stream 140 PWM Adjustable VR

So far I've been able to resist the dark wet side of cooling biggrin.gif
post #4 of 7
Thread Starter 
Quote:
Originally Posted by doyll View Post

Welcome! I'll try to help.

Good choice on PWM splitter

I can't be sure what 4pin sockets are PWM. Pretty sure the CPU_Fan is PWM.. and probably CPU_Opt Often the others have no PWM. Test the others to see if the 4th pin is actually PWM. I know of case that even though manual says it is the 4th pin is NOT pwm pin/signal.
Last page of this thread
http://www.overclock.net/t/1353732/trouble-with-pwm-control-on-chassis-fan-headers-w-pwm-splitter/30

Why not have all the case fans PWM and controlled using the Swiftech splitter? Than you can use cheaper fans that will be quiet at low rpm but if GPU or whatever get hot they will speed up. wink.gif

Radiator temp with be directly related to CPU temp it cooling so you can use CPU temp to control radiator fans. Same as automobile industry does.

Could you please give me the bad reviews of TY-140 fan?

You might want to consider the Scythe Slip Stream 140 PWM Adjustable VR

So far I've been able to resist the dark wet side of cooling biggrin.gif

Thanks for your reply!

After you mentioned "to see if the 4th pin is PWM", it made me realize that while the page in my motherboard manual does not have any sentences explaining PWM to me, it certainly had pin diagrams!


So it looks like CPU_FAN, CPU_OPT, OPT_FAN2 and OPT_FAN3 all have an "OPT FAN PWM pin"!

... But after reading that thread you linked, I really want to test out those headers and see if they REALLY are PWM fan headers. I have no PWM fans right now, but may go pick some up to test. I'd have to order the Swiftech Helix 120s online from America, but I could pick up a Noctua NF-F12 here to test.

And ohhh good call about radiator to CPU temp! That makes lots of sense.

I had tabs upon tabs open last night, and in a few forums I had found people saying the TY-104 would make clicking noises and have terrible horizontal performance. But I cannot find those negative posts to back-up my words now, so I'll have to take them back. I'll look into reviews on the slip stream though.


I suppose one thing still eating at me is my choice of fans. I am going the PWM rout because it feels like the logical choice where I'll have all my temperatures and RPMs show up in Asus AI Suite and FanXpert, where I'll be able to setup cooling plans and not have to manage it myself.
The alternative, being voltage regulated, would require me to purchase a fan controller like a BitFenix Recon (not that $40 is a big deal); but then I would have to adjust all my own fan speeds with dials and sliders and I believe voltage controlled fans are supposedly louder. But I'd be able to choose the Gentle Typhoon AP-15s if I went that route!

Ahh choices
post #5 of 7
I'm sold on using PWM signal from CPU and GPU to control case fan speeds. Everything idles at 700rpm and ramps up as needed to supply air for case and CPU / GPU as they need the air. Why have case fans running at speed / noise of full on processing / gaming when system is idling when surfing the web / writing / watching video?.. and the only time I change fan speed is more for fun than needing to. Open up ET6 and max rpm fans to show someone what it sounds like. The truth is 3x TY-140 or similar intake fans cool my case at 1000rpm or less... and I've setup a couple other systems the same.

TY-140/143/147 are all same fan design
TY-141/145 are a different blade design and ball bearing w/ 147 black/white colors
The TY-140/147 are same fans but 147 is black housing w/ white fan.
TY-143 is ball bearing 6w 2500rpm 130cfm..

ehume on here uses TY-140 and think he commented on the tick. He's very picky about noise. His review on Vortez of TY-140 and kaze Maru /Slipstream and others may be of interest.
http://www.vortez.net/articles_pages/120mm_and_140mm_fan_comparison,22.html

Also his thread "The Well Dressed Megahalems - 65 fans and 112 setups"
http://www.overclock.net/t/724577/the-well-dressed-megahalems-65-fans-and-112-setups-56k-warning

Tator Tot and .... drawing a complete blank another member has big long thread reviewing fans.

Sound bites of fans
http://translate.google.com/translate?langpair=auto|en&u=http%3A%2F%2Fwww.hardwaremax.net%2Freviews%2Fluefter%2F620-test-scythe-und-silverstone-140-mm-luefter.html

Sound bites of coolers. You can expect similar noise in a case with grill, filter, hdd cage in airflow.
http://www.hardwaremax.net/reviews/kuehler/488-test-thermalright-archon-sb-e.html?showall=0&start=6

Fan dBA/cfm graphs you can click on fan name to highlight it and it appears on line graph. Click highlighted to remove from graph
140mm fans
http://www.hardware.fr/articles/886-26/recapitulatif-db-a-vs-cfm.html
120mm fans
http://www.hardware.fr/articles/874-35/recapitulatif-db-a-vs-cfm.html
Edited by doyll - 4/5/13 at 2:08am
post #6 of 7
Thread Starter 
Wow Doyll, those were some REALLY good reads.thumb.gifthumb.gifthumb.gif

In particular, eHumes reviews at
http://www.vortez.net/articles_pages/120mm_and_140mm_fan_comparison,22.html
were very convincing!
The Scythe Kazemaru 2 sounds like a total 140mm winner (in black too!), but considering it was mentioned “As sleeve bearing fans these should best not be employed with their airflow directed upward”, that eliminates them from my 2xtop 140mm fan slots.
The TY-140 really does seem a solid contender. I feel rather goofy having ruled it out before from just a few bad mentions of it. I just hope the 900D has 120mm fan holes on the rear 140mm exhaust area to accommodate this awesome fan.

I also really liked hearing the sound comparisons on this page
http://www.hardwaremax.net/reviews/kuehler/488-test-thermalright-archon-sb-e.html?showall=0&start=6
Really, That’s an AWESOME idea. I wish more review sites went this far!


I really do want to go with PWM route. Having 3 sets of fans – intake, exhaust, radiators, each on different PWM splitters – and those splitters each plugged into one of the PWM headers, in addition to a PWM pump on a header as well would make all too much sense. I hope it works.

I have made a thread on the Asus boards, and a post in the Maximus V fan club thread and have been searching google.
I found one gentlemen who went through a similar experience in this thread, but he seemed unable to control all the PWM fans from his bios or FanXpert, which could ruin everything in terms of silence (each set of fans would have an optimal noise/cooling rpm). I have since replied to him and private messaged him asking about how things turned out.


If this motherboard does not give me the control over these fans as I want – I will look into a PWM or a VRM fan controller to get the job done.
I’ll post back when I get some answers!


Also, my current PWM fan choices are these:
4x radiator fans = Noctua NF-F12 (120mm PWM)
3x front case fans = Noctua NF-S12A (120mm PWM)
3x exhaust fans = TY-140 PWM or, depending on availability, the Noctua NF-A15 (140mm PWM)

The Noctuas aren't my colour style, so I may attempty DYEING a couple black, as seen in this thread, so as to not use paint and mess up their balance. "Sealed bearing" units cannot be disassembled, but I figure if I can mask off the motor opening air tight, I could dye the entire unit black all at once. We'll cross that bridge when it comes to it. I'll be sure to make a video if I do! wink.gif
Edited by Dragon-Emperor - 4/6/13 at 8:30pm
post #7 of 7
Quote:
Originally Posted by dragon-emperor View Post

Wow Doyll, those were some REALLY good reads.thumb.gifthumb.gifthumb.gif

In particular, eHumes reviews at
http://www.vortez.net/articles_pages/120mm_and_140mm_fan_comparison,22.html
were very convincing!
The Scythe Kazemaru 2 sounds like a total 140mm winner (in black too!), but considering it was mentioned “As sleeve bearing fans these should best not be employed with their airflow directed upward”, that eliminates them from my 2xtop 140mm fan slots.
The TY-140 really does seem a solid contender. I feel rather goofy having ruled it out before from just a few bad mentions of it. I just hope the 900D has 120mm fan holes on the rear 140mm exhaust area to accommodate this awesome fan.

I also really liked hearing the sound comparisons on this page
http://www.hardwaremax.net/reviews/kuehler/488-test-thermalright-archon-sb-e.html?showall=0&start=6
Really, That’s an AWESOME idea. I wish more review sites went this far!


I really do want to go with PWM route. Having 3 sets of fans – intake, exhaust, radiators, each on different PWM splitters – and those splitters each plugged into one of the PWM headers, in addition to a PWM pump on a header as well would make all too much sense. I hope it works.

I have made a thread on the Asus boards, and a post in the Maximus V fan club thread and have been searching google.
I found one gentlemen who went through a similar experience in this thread, but he seemed unable to control all the PWM fans from his bios or FanXpert, which could ruin everything in terms of silence (each set of fans would have an optimal noise/cooling rpm). I have since replied to him and private messaged him asking about how things turned out.


If this motherboard does not give me the control over these fans as I want – I will look into a PWM or a VRM fan controller to get the job done.
I’ll post back when I get some answers!


Also, my current PWM fan choices are these:
4x radiator fans = Noctua NF-F12 (120mm PWM)
3x front case fans = Noctua NF-S12A (120mm PWM)
3x exhaust fans = TY-140 PWM or, depending on availability, the Noctua NF-A15 (140mm PWM)

The Noctuas aren't my colour style, so I may attempty DYEING a couple black, as seen in this thread, so as to not use paint and mess up their balance. "Sealed bearing" units cannot be disassembled, but I figure if I can mask off the motor opening air tight, I could dye the entire unit black all at once. We'll cross that bridge when it comes to it. I'll be sure to make a video if I do! wink.gif
I see no reason to not have intake and on same control. And there is no reason for 3x 140 exhaust with 3x 120 intakes. 2x 140mm fans have same area as 3x 120mm fans. Meaning 3x 120mm fans move same amount of air as 2x 140mm fans of similar design and speed.. and you really want a little more in than out so the air inside of case is slightly higher pressure than outside. This means a little air leaks out optical drive, switchs, buttons, usb sockets, etc. instead of being sucked in with dust. wink.gif

I assume you are water cooling both CPU and GPU. If that is turn you don't need much airflow through the rest of case. My R2 has 3x TY-140 intakes, no exhausts.

Dyeing fans; Have you considered using leather/vinyl dye like is used on car interiors and furniture? It covers like paint but is runny like water. Usually spray or dauber applied.
http://www.vinyldye.co.uk/

I used to use Tandy Leather dye, but that was many years ago. What I have used was not water base.
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