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post #21 of 31
ok i get what you mean and i can sign it about the cleaning factor as a haf owner *sigh*
but when i look at the case, you get 4 fans overall, thats it. no front or exhaust fan.
the left 180mm is only designed to cool down the hdd cage
the middle one is set to blow into the case, directly towards the gpu(s)
the right fan is restricted to the cpu.

the only exhaust fan is next to the gpu(s) which is a 140mm? no front or side fan either.
i remember a thread where some guy had serious problems in case of heat using this case.

sure its designed properly due to rotating the mainboard cause as we all know, heat rises.
for me and in my opinion it dont look like a good airflow if you compare it to a "standard" case where you can create a windtunnel.
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post #22 of 31
Quote:
Originally Posted by justanewguy View Post

ok i get what you mean and i can sign it about the cleaning factor as a haf owner *sigh*
but when i look at the case, you get 4 fans overall, thats it. no front or exhaust fan.
the left 180mm is only designed to cool down the hdd cage
the middle one is set to blow into the case, directly towards the gpu(s)
the right fan is restricted to the cpu.
the only exhaust fan is next to the gpu(s) which is a 140mm? no front or side fan either.
i remember a thread where some guy had serious problems in case of heat using this case.
sure its designed properly due to rotating the mainboard cause as we all know, heat rises.
for me and in my opinion it dont look like a good airflow if you compare it to a "standard" case where you can create a windtunnel.

/warning wall of text ahead

the "front" fans you are used to thinking about are the 3 x 180mm fans. they are filtered intake fans. the exhaust fan is largely not needed due to the positive pressure and the stack cooling design of the case itself. there are really 2 different way in looking at airflow. the direct way, and the pressure differential way.

direct way is how people normally look at cooling. they see a fan pushing air, and the air carries the momentum of that push and flows over the components that needs to be cooled. the air carries that heat till it's pushed yet again by another fan out of the case. this is a perfectly valid method and accurate description of cooling. however it's not the only way to look at airflow and cooling.

the 2nd way is the pressure differential way(fluid dynamics) which is abit more abstract and harder to picture in your head. as we all know from watching the weather channel:D... air flows due to a difference between high and low pressure in nature. air ALWAYS try to flow from a high pressure zone to low pressure zone regardless of what path or obstacle is in the way. air also flows in a 3 dimensional pattern so if there is something in it's path, it'll simply go round it, whether it's from the sides of from the top/bottom of the obstacle. why is this important? well, it's about how cooling works in the FT02.

you mentioned that the left(front) 180mm fan only cools the HDD cage and nothing else. from a direct cooling point of view you are correct. however from a pressure differential point of view, that fan is still providing 130 CFM as well as static pressure INTO the case. those numbers actually indicate an amount of energy that was bestowed by that fan onto the air molecules inside the case and that energy does not disappear. they are "stored" inside the case in the form of pressure and can be reused to cool something else. But only if you create a pressure differential to take advantage of that energy. this is the whole basis behind a positive pressure design. the pressure INSIDE the case is higher then the pressure OUTSIDE the case. so air will flow as far as it needs to and take whatever the shortest path it can find to escape that high pressure. IF all other paths are blocked and the only path that is left open is over and around the GPU(thereby carrying the heat from the card) and out from the top then that's how air WILL flow. another thing about the pressure differential is that the higher the differential, the faster the air flows. the faster the air flows around a heated surface, the more heat it is able to carry off thereby cooling the object down.

however there are some limitations to this design. The pressure inside the case will NEVER go above the rated static pressure of the intake fans. so that is the primary limitation of cooling for the FT02/RV02. the CFM tells us how much pressure leakage is allowed before the fans are unable to maintain that pressure. so the less a case leaks pressure, the more it's able to maintain the exhaust air velocity (hence cooling ability). why does these limitations matter? silence. the less pressure leakage area you have, the less CFM is required to maintain pressure. hence less fans/RPM is needed to keep the system cool. less fans + less RPM = quieter system for the same thermal performance. this is also the reason why you should get larger fans when possible so it doesn't have to spin as fast.

so. as you can see, as long as you have sufficient pressure inside the case and block off areas where you don't want air to leak out, you don't really NEED exhaust fans (the FT02/RV02 has a 120mm exhaust not 140mm). the exhaust fan is only there to create a low pressure zone to complete the pressure differential. technically speaking, that fan doesn't even have to be spinning since the outside of the case is lower then the inside of the case already. having the exhaust fan spinning simply bleeds off the excess energy that aren't being used so essentially creating an artificial high velocity airflow rather then allowing the internal pressure to do its work naturally. obviously a single 120mm exhaust fan isn't going to overwhelm 3 x 180mm intake fans, so the pressure bleed from that fan is "acceptable" way of directing the airflow inside the case to where you want it the most.

/end wall of text:D

edit: bad grammer:D
Edited by psyclum - 2/7/12 at 4:21am
post #23 of 31
thanks for clearing that up, much appreciated and turned this case into a different light. ( meh bad english skills, sorry about that )
i guess i just need to try this case once or see it in action.

your wall of text, the context makes sense. perhaps i dont saw or recognized that cause i only believe in those standard flows which seems to me the most logical way to cool and move air properly.

but still one question, you push so much air into the case, where can it get out? i dont see much mesh, holes or whatever.
of course i also know that the cpu cooler is sucking the air in and out, but that much?
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post #24 of 31
Quote:
Originally Posted by justanewguy View Post

but still one question, you push so much air into the case, where can it get out? i dont see much mesh, holes or whatever.
of course i also know that the cpu cooler is sucking the air in and out, but that much?

the amount of air that can flow through an opening is directly proportional to the pressure differential that is created.

for example. a door has about the same amount of surface area as the intake port of a commercial jet engine:D the CFM that can flow through that area is completely dependent on how much pressure differential that jet engine is able to provide:D

so the 120mm hole on the top of the case where the exhaust fan is can exhaust as much air as the amount of pressure the 3 x 180mm fans is able to generate. you can boost that by actually powering exhaust fan. and you can go as far as putting a 250 CFM delta fan on the exhaust port if you really want to how much air you can pull through that hole:D

remember the pressure differential method of looking at airflow is somewhat abstract and can be hard to grasp at times. it's like if you take out a can of compressed air. the opening where the compressed air comes out is less then 1 millimeter, but it's pushing good CFM if you are blasting air out of it:D
post #25 of 31
Quote:
Originally Posted by marccoc View Post

Hi guys,
I have absolutely zero knowledge in cooling so I'll need your help choosing what cooling to get for this new rig I'm building right now:
maybe I should specify that I won't use more than 2 SSD (only one actually, but want to have space to add another one if I ever want to)
No bling bling light. I hate it. All I care for is cost saving, performance and noise (silent).
CPU: i7 2600K
Mobo: ASUS P8Z68-V/GEN3
GPU: AMD Radeon HD 7970 (will go Crossfire in a year or so)
Memory: 8 GB DDR3 1600 MHz (2x4GB)
Hard drive: 160Gb SDD
PSU: SeaSonic X-SERIES X-1050
OS: Win7 64bit
Monitor: Asus VG236HE
Cooling: ????
Case: ????

honestly for a purely gaming rig, it would be better to go with a nvidia card like gtx580 and you don't need such a big psu, a seasonic x850 would more than suit your needs

as for cooler, listen to ehume, he knows what hes talking about, get a silver arrow and get a relatively big case, so you have room to manage your cables and have good airflow, I personally prefer the nzxt phantom
   
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post #26 of 31
Quote:
Originally Posted by chinesethunda View Post

honestly for a purely gaming rig, it would be better to go with a nvidia card like gtx580 and you don't need such a big psu, a seasonic x850 would more than suit your needs
as for cooler, listen to ehume, he knows what hes talking about, get a silver arrow and get a relatively big case, so you have room to manage your cables and have good airflow, I personally prefer the nzxt phantom

HD 7970 W/ all system consums about 300w so Corsair TX/HX is enough for OCing 5Ghz and CrossfireX

Cpu Cooler

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TT FRIO OCK
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post #27 of 31
Hey hey ...

I would just like to say that as a Silverstone Raven 02-e owner ... this case while not the biggest most bada$$ in the world ... definitely has enough cooling and size for any Dual GPU setup as long as the cards are less than the indicated 12.2" ...

I have a 2500K at a perfectly stable 4.8Ghz cooled by a Thermalright Silver Arrow and with an average ambient of 30°C ... @Idle I'm around 42°C and under full load using prime95 I hit a max of 77°C

I am going to mod the front of the case to fit a fan (TY-140) blowing directly at my GFX card but that is only cause this is OCN and we void warranties ... biggrin.gif ... pictures of my rig can be seen here

Here is some proof of temps ...

338
338



:: EDIT :: ... If you want something that looks "cleaner" ... look at the FT02 ... same internals ... more mature external look ...


As for memory ... Corsair's LP Low Voltage Vengeance series is very good ...

I am a nVidia boy ... Not against AMD though ... ... The 7970 is a very good card at the moment ... but If you can hold out for nVidia's new cards or maybe get a cheaper card for a couple months ... just a thought ... but u really can't go wrong with a 7970
Edited by Emissary of Pain - 2/7/12 at 5:46am
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post #28 of 31
Quote:
Originally Posted by Emissary of Pain View Post

I have a 2500K at a perfectly stable 4.8Ghz cooled by a Thermalright Silver Arrow and with an average ambient of 30°C ... @Idle I'm around 42°C and under full load using prime95 I hit a max of 77°C
I am going to mod the front of the case to fit a fan (TY-140) blowing directly at my GFX card but that is only cause this is OCN and we void warranties ...
if you do it right, why would putting a TY140 in the 5.25 bays void any warranties?biggrin.gif
post #29 of 31
Quote:
Originally Posted by psyclum View Post

if you do it right, why would putting a TY140 in the 5.25 bays void any warranties?biggrin.gif

I like the way u think ... what suggestions have u got ...

I guess it wouldn't void warranty either way ... but the hard drive cage mod will ... biggrin.gif ... that is if I get a good price on water cooling in my country ... looking at the 540 rad conversion like in the MOTM ...


I can't find modders mesh in my country ... so I will need 2 look at a new way to mount the TY-140


:: EDIT :: I must be the only OCN member with 500+ posts and only 4 rep ... lol ... no wonder I don't get taken seriously ... tongue.gif
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Win 10 Pro  Dell U2412M Coolermaster Mech (brown switches) Corsair RM1000i 
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post #30 of 31
Quote:
Originally Posted by Emissary of Pain View Post


I can't find modders mesh in my country ... so I will need 2 look at a new way to mount the TY-140

it may not be called modders mesh but alot of the hardware stores have screened doors(not the heavy guage steel security type screen doors, but the aluminum mesh type) that have something like modders mesh on them. maybe you can find one and try to find replacement parts from the screen door manufacture?
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