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[Official] Cooler Master ATCS 840 Owners Club - Page 353

post #3521 of 4392
Quote:
Originally Posted by Pedros View Post
It's for the tubes that are connected from the bottom radiator to the gpu's. Basically i did a parallel water circuit. The 420 rad will take care of the CPU & Mobo first, then, the water will go to the bottom radiator and from there to the GPUs
All very cool.

1) It may be the perspective in the pics but there doesn't look like much clearance below the middle plate fro those tubes.

2) Is that middle plate mostly for appearance, airflow or thermal isolation?

3) Does the bottom rad intake air from below, take heat from the rad and exhaust warm air into the case?

4) I know I asked before but tell me again, please, where are your HDDs going to go?

Lots of work, all very elegant.
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WD Blue 500AZLX 500GB, in hot swap bay. Used t... Two PATA legacy drives mounted between PSU (rea... LaCie D2 Quadra 1TB e-SATA 3.0 Gb/s (for immedi... Sony Optiarc AD-7261S-OB 
CoolingCoolingCoolingCooling
Case stock fans: one 230mm front intake, two 23... CM External GPU Duct & CM 120mm Ex. Fan Noctua NF-P14 FLX 140mm (addl. bottom case intake) Noctua NF-P14 FLX 140mm (addl. rear case exhaust) 
CoolingCoolingCoolingCooling
Prolimatech Megahalems Rev. B. CPU heat sink Noctua NF-P12 1300R 120mm push fan on CPU heat ... Scythe Kaze Master Pro 6 channel fan controller 70mm fan on i-Star hot swap HDD cage (disconnec... 
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post #3522 of 4392
Hey Old ...

1) There's clearance ... maybe it's the photos

2) It's for appearance, to hide tubings and PSU and to que the airflow mainly on the area of the components

3) The bottom and the top rad are both Intake's.

4) The HDD cage was rebuilt ( cut and did some parts in matte black plexi ) and i removed most of the HDD slots. I just left space for the DVD, 2 SSD's and 2 HDD's. All these parts will be above the 180mm fan on the front.



Thank you all, for the comments I'll keep you posted.
post #3523 of 4392
Quote:
Originally Posted by Pedros View Post
3) The bottom and the top rad are both Intake's.
Pedros or anyone else, help me understand something. It occurs to me that all the radiator installations I've seen either take outside air, run it through the radiator and exhaust that warmed air (the point is the cooling fluid transfers heat to the radiator which radiates it to the airflow) into the case OR runs case air which is probably warmer than ambient air through the radiator (same process) and out of the case. Not achieving optimum cooling performance in either case.

Wouldn't it be better to mount the radiator for cross case air flow? Intake ambient air from one side, pass it through the radiator and exhaust it out of the case on the other side. Of course that might require additional fan(s) for case airflow but most set ups seem to have that anyway.
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RAMHard DriveHard DriveHard Drive
Mushkin Silverline (6 x 4)=24 GB DDR3 1333 C(OS): 120GB OCZ Vertex 3 - MAX IOPS Edition, S... D(Data): two WD RE4 1TB 3.0Gb/s (RAID 1)  Two WD RE4 1TB 3.0Gb/s to be used in hot swap b... 
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WD Blue 500AZLX 500GB, in hot swap bay. Used t... Two PATA legacy drives mounted between PSU (rea... LaCie D2 Quadra 1TB e-SATA 3.0 Gb/s (for immedi... Sony Optiarc AD-7261S-OB 
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Case stock fans: one 230mm front intake, two 23... CM External GPU Duct & CM 120mm Ex. Fan Noctua NF-P14 FLX 140mm (addl. bottom case intake) Noctua NF-P14 FLX 140mm (addl. rear case exhaust) 
CoolingCoolingCoolingCooling
Prolimatech Megahalems Rev. B. CPU heat sink Noctua NF-P12 1300R 120mm push fan on CPU heat ... Scythe Kaze Master Pro 6 channel fan controller 70mm fan on i-Star hot swap HDD cage (disconnec... 
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RAMHard DriveHard DriveHard Drive
Mushkin Silverline (6 x 4)=24 GB DDR3 1333 C(OS): 120GB OCZ Vertex 3 - MAX IOPS Edition, S... D(Data): two WD RE4 1TB 3.0Gb/s (RAID 1)  Two WD RE4 1TB 3.0Gb/s to be used in hot swap b... 
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WD Blue 500AZLX 500GB, in hot swap bay. Used t... Two PATA legacy drives mounted between PSU (rea... LaCie D2 Quadra 1TB e-SATA 3.0 Gb/s (for immedi... Sony Optiarc AD-7261S-OB 
CoolingCoolingCoolingCooling
Case stock fans: one 230mm front intake, two 23... CM External GPU Duct & CM 120mm Ex. Fan Noctua NF-P14 FLX 140mm (addl. bottom case intake) Noctua NF-P14 FLX 140mm (addl. rear case exhaust) 
CoolingCoolingCoolingCooling
Prolimatech Megahalems Rev. B. CPU heat sink Noctua NF-P12 1300R 120mm push fan on CPU heat ... Scythe Kaze Master Pro 6 channel fan controller 70mm fan on i-Star hot swap HDD cage (disconnec... 
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post #3524 of 4392
Well... there are several ways to mount rads...
with two rads, what i see the most is one as intake and other as exhaust... but the rad that's configured as exhaust will have a lower efficiency due to the air being heated ...

In my case, i decided to do both intakes to give the maximum efficiency to both. What i did was use the front as intake too, but without any components in front of the air flow. I used a Silverstone Air penetrator fan, that creates a better air column ( instead of spreading the air through the case ) that will make the air front the rads flow to the rear of the case and then a S-Flex 1900rpm in the back to exhaust that air.

Watercooling works better when rads are set up as intakes... the problem for most of the users is that, using rads as intake will warm the air inside the case and then there's not available fans to exhaust that air ....

The way i did, works great in this case with my fan setup ... but it was something i had to test using the front as intake or as exhaust ... i had better results with the fan as intake...

So, bottom line is, for max performance you should have the rads as intake ... if you can exhaust the warm air using the other fans of the case that are working with radiators. If you can't do that... then... well... using the top rad as exhaust will be an option but with worst efficiency than the rad that will be working as intake.

I used push-pull configs on both rads...
post #3525 of 4392
Update... Ready for Lanfest




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post #3526 of 4392
Rear GPU duct (like in the 840) vs side panel fan (like in the HAFX)??

What would be better for extra GPU cooling??
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post #3527 of 4392
Quote:
Originally Posted by Pedros View Post
So, bottom line is, for max performance you should have the rads as intake ... if you can exhaust the warm air using the other fans of the case that are working with radiators. If you can't do that... then... well... using the top rad as exhaust will be an option but with worst efficiency than the rad that will be working as intake.
OK I understand what you did but I'm not sure you answered my question. Would you get even better cooling if the two rads moved their air side to side never mixing with case air and using separate fans for case air movement?

If all the heat transferred to the rads is sent directly out of the case, the case air flow fans have less work to do.

Editing here. Looking at the 840 again it is clear that there's not much room for a top rad to be installed with side to side air flow so it would need to be atop the case or in a stacked addition to the top (as some have modded). Bottom could work especially if the psu is top mounted. And it appears a side to side rad could fit in Pedros's case where the 3.5 cage was removed. So practical issues in mounting. But the question still holds. Assuming you modded to do it, would radiators with all airflow outside the case be more effective?
Edited by Old Guy - 5/15/11 at 5:46am
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Mushkin Silverline (6 x 4)=24 GB DDR3 1333 C(OS): 120GB OCZ Vertex 3 - MAX IOPS Edition, S... D(Data): two WD RE4 1TB 3.0Gb/s (RAID 1)  Two WD RE4 1TB 3.0Gb/s to be used in hot swap b... 
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WD Blue 500AZLX 500GB, in hot swap bay. Used t... Two PATA legacy drives mounted between PSU (rea... LaCie D2 Quadra 1TB e-SATA 3.0 Gb/s (for immedi... Sony Optiarc AD-7261S-OB 
CoolingCoolingCoolingCooling
Case stock fans: one 230mm front intake, two 23... CM External GPU Duct & CM 120mm Ex. Fan Noctua NF-P14 FLX 140mm (addl. bottom case intake) Noctua NF-P14 FLX 140mm (addl. rear case exhaust) 
CoolingCoolingCoolingCooling
Prolimatech Megahalems Rev. B. CPU heat sink Noctua NF-P12 1300R 120mm push fan on CPU heat ... Scythe Kaze Master Pro 6 channel fan controller 70mm fan on i-Star hot swap HDD cage (disconnec... 
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RAMHard DriveHard DriveHard Drive
Mushkin Silverline (6 x 4)=24 GB DDR3 1333 C(OS): 120GB OCZ Vertex 3 - MAX IOPS Edition, S... D(Data): two WD RE4 1TB 3.0Gb/s (RAID 1)  Two WD RE4 1TB 3.0Gb/s to be used in hot swap b... 
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WD Blue 500AZLX 500GB, in hot swap bay. Used t... Two PATA legacy drives mounted between PSU (rea... LaCie D2 Quadra 1TB e-SATA 3.0 Gb/s (for immedi... Sony Optiarc AD-7261S-OB 
CoolingCoolingCoolingCooling
Case stock fans: one 230mm front intake, two 23... CM External GPU Duct & CM 120mm Ex. Fan Noctua NF-P14 FLX 140mm (addl. bottom case intake) Noctua NF-P14 FLX 140mm (addl. rear case exhaust) 
CoolingCoolingCoolingCooling
Prolimatech Megahalems Rev. B. CPU heat sink Noctua NF-P12 1300R 120mm push fan on CPU heat ... Scythe Kaze Master Pro 6 channel fan controller 70mm fan on i-Star hot swap HDD cage (disconnec... 
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Logitech K330 Wireless w/mouse Seasonic Platinum-860 80 Plus 860 Watts ... CM ATCS 840 (minor mods) Logitech K330 wireless 
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Some freebee with an advert on it Cyber Acoustics CA-1001WB 5.25" Drive Bay for now  i-Star USA three bay, 3.5" hot swap cage (in tw... Drive A: Internal FDD w/ multi card readers & 1... 
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post #3528 of 4392
Quote:
Originally Posted by BlackandDecker View Post
Rear GPU duct (like in the 840) vs side panel fan (like in the HAFX)??

What would be better for extra GPU cooling??
The GPU duct indeed helps carry out the exhausted hot air from the GPUs by a degree or so...however any side panel fan directed to the GPUs will act as a better cooling solution since it will automatically be taking ambient air outside of the case.
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post #3529 of 4392
Quote:
Originally Posted by Old Guy View Post
OK I understand what you did but I'm not sure you answered my question. Would you get even better cooling if the two rads moved their air side to side never mixing with case air and using separate fans for case air movement?

If all the heat transferred to the rads is sent directly out of the case, the case air flow fans have less work to do.

Editing here. Looking at the 840 again it is clear that there's not much room for a top rad to be installed with side to side air flow so it would need to be atop the case or in a stacked addition to the top (as some have modded). Bottom could work especially if the psu is top mounted. And it appears a side to side rad could fit in Pedros's case where the 3.5 cage was removed. So practical issues in mounting. But the question still holds. Assuming you modded to do it, would radiators with all airflow outside the case be more effective?
Ohhhhh, now i understand your question.
yes... it would be better indeed ... now warm air from rads in the case... and you could had intake fans ... and use the top and rear as exhausts ...

But... that's lots of mods you have to do ... side panels must be cut ... and on the bottom ... you can add a 280mm rad ... not more... i mean ... you can if you use your PSU on the top ...

That's a good idea though! I didn't remember that Side rad mounting idea ... pretty cool!
post #3530 of 4392
Quote:
Originally Posted by bulmung View Post
I won this case in a contest a year ago. They did not ship the case with those fan brackets. Now begins the hunt to find them, thanks for the info.
I've only found 3 of them in my garage. I'll try to find the fourth. If so you can have them as I'm already invested in a 420 setup.

edit: found the last one. PM me your address if you want it and I'll mail them over. On me if you're conus.
Edited by mobius9 - 5/15/11 at 11:30pm
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