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Lian Li PC-70 Air Flow Case mod - Help re-routing Air / dremel and drill to make more efficient. - Page 2

post #11 of 190
Quote:
Originally Posted by dpoverlord View Post

wait so did I make a bad choice here?
Not at all PC-70 (think that's what it is) is a very nice case.

Like Kuudere suggested,. remove HDD bay and use a 3x 5.25 bay vent adapter like Lian Li BZ-502A 120mm Front Bay Cooler Silver in bottom 3x optical bays. If like many of us you are not using your DVD drive you could use 2 of the 5.25t bay fan adapters.
http://www.kustompcs.co.uk/acatalog/info_1386.html?gclid=CL3y9ImY8bwCFVKWtAodEAMAWA

I would try using the top vent as an intake too. W don't want airflow exhausting out the top because most likely it is pulling warm/ hot air up from GPU past the CPU cooler intake and increase the CPU temp. With 120mm fans in top and front along and the 2x 92mm intakes in front bottom you should be okay. The 2x 120mm fans will supply cool air to CPU and also move on down to GPUs. There's a link in my sig about case airflow. wink.gif

If you feel competent at cutting holes, a bottom intake with case raised up 25-30mm on taller feet would be my first cut.. If case sets on floor put it on castors like this PC-76 has.
http://www.dansdata.com/pc76.htm

Once you've developed your cutting skills you could change the 2x 92mm front vent into a 120-140mm vent. Could probably use the optical bay vent and adapt it into lower front.
post #12 of 190
I think the biggest effect on GPU temps would be to get the two side-panel fans to somehow blow air directly into the intakes of your cards. Think - force feeding your cards with air. smile.gif Maybe some piece of plastic attached to the side panel to deflect the airflow a little to the right or so. Your titans do have the reference cooler that pulls in air at the top back of the card and blows it out at the back of your case, yes? That's really a good thing because the exhaust air from your cards doesn't heat up your case except for the heat from the back of their PCBs. Those newer ACX and whatnot coolers that take in air at the middle of the card and exit it to the front and back would really seem counterproductive because you'd have to deal with part of the hot air inside the case.

The back of your case already is your exhaust and probably the top of your case would be a good exhaust side too because hot air likes to go up by itself already. Getting that Lian-Li Bay adapter like doyll suggested sounds like a good idea to get cool air in from the front to cool the rest of your equipment. If your existing back and top fans are up to getting that air out you're probably already set.

A little dremel action to get in air from the bottom of your case would work too but you'd probably get a lot more dust inside. Carpet would probably be the worst thing you could place it on then, dust wise. Well, except for concrete in the basement of course biggrin.gif
Your overall airflow would be from the bottom right to the top left then... sort of

Your fan grills look pretty much optimal. There are some cases that just have mesh like holes cut into the metal and it always looks like that hinders airflow a lot to me. The ones you have seem a lot better.

That aside, a 14 year old fan controller that died honorably? thumb.gif

*edit*
something crossed my mind while making breadfast. Only if air actually touches your components, it'll cool them. So in that sense, you could also mount a 120 or 140mm fan inside the case to blow the air to e.g. onto your MB + CPU for better temps. As long as you can get the hot air out you might see lower temps in that region. Plus you can experiment with zipties wink.gif
Edited by mosi - 3/1/14 at 4:23am
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post #13 of 190
120mm intakes in top and front supply cool air to both CPU and GPU. Using all 6 optical bays for 2x 120 intakes plus top 120mm as intake and 2x 92mm front intakes will flow air nicely to components.

I would not use the 2x 92mm top back fans at all. They would cause airflow in the wrong direction.

Side panel 92mm fans may work better as exhaust than intake. Only way to know for sure is try it and see what component temps are.

Hot air will rise if there is nothing else moving the air... Which fan do very easily.

Air is always touching components. biggrin.gif
Blowing air around is not the solution. Keeping air cool as it flows to components and flowing components heated exhaust out of case without allowing it to mix with cool case air is the key.

With reference / blower GPUs having airflow from top and front to back and lower side is probably the easiest. Only requires changing 3x optical panels for grille & fan and removing HDD cage.
post #14 of 190
there is nothing wrong with smaller fans, they have their uses. Smaller fans generate higher static pressure but a reduced CFM at the same decibel cost. this is because the smaller fans can spin at a higher RPM at the same decibel level of larger fans. smaller fans are actually good intake fans since they produce relatively high static pressure and are able to overcome air filters better. the down side is you'd need ALOT more fans when you are using smaller fans and eventually your system starts to look like this



biggrin.gif and the harmonic noise of having so many fans spinning at similar RPM becomes a problem.

you can easily add a 5.25 bay fan adapter



as suggested by others which would eliminate the need for dremel.

personally i'd evaluate your overall airflow profile inside the case and unplug unnecessary fans. the 2 fans above your PSU as well as the roof fan are not really contributing to the overall cooling of the system. i would unplug these fans since they are simply contributing to noise and dust. I would replace the fan grills of the side panel intake fans as well as the front intake fans with aluminum mesh filters such as these



leave the 2 rear exhaust fans behind the CPU as grills since they are just exhaust and doesn't bring dust in.

adding the 5.25 fan adapter would help, but i would definitely consider relocating your HDD 1st. moving the HDD to the 5.25 bays using something like this



would kill 2 birds with 1 stone. you are adding intake air and removing airflow blockage from the front intake fan to your GPU. removing the HDD cage from the bottom would vastly improve the cool airflow to your GPU which are the hottest of your system.

overall these recommendations would improve both acoustic profile(disconnecting fans that are too far away from the heat source to matter) as well as thermal performance (removing cool air blockage by the HDD cage) of your system for another 14 years down the road w/o having to dremel tongue.gif
post #15 of 190
Thread Starter 
On my phone will read this on my computer.

I am not sure the 5.25 bays are good intakes for air since they are at the top. I think you guys are thinking this case is like a modern case where the guy would be higher up. The 2 goes are literally on the the floor.

The 2 side panel fans are intakes into the case and blow basically on the gpus. Directly across from this are 3 wd red 3tb drives and 1 3tb Seagate drive. There are 2(want to say 80 or 92) fans in taking air with a mesh dust filter into the case blowing the air onto the drives. I doubt this air circulates onto the gpus.

On the 5.25bays there is nothing now except the EOL digidoc and the Blu Ray player (funny I only use it for old games).

On the top there is 1 120 outtake fan.

Back. 2 80/92(cant remember size) outtakes above the psu(psu has the massive fan blowing hot air out and these 2 fans help love it out.

Moving down: 2 120 fans connected to that massive heats ink blowing air to the back leading to the 2 92/80(lol can't remember) fans pulling it out.

Got wise I think the Temps on the titans run hit since the one on the top in reality is in taking the air from the other guy. Hot air from hot components. So the 2 92 fans will at least blow colder air.

Let's see what happens when the new fam and controller comes in.

Right now the titans hit 70c idling Sometimes at 75% fan usage. 88-90c in game for some reason the titan fans only go to 85%usage I don't know why the profile is set to 100%.

I am all for optimizing the air setup since.... I really don't want to spend a K in WC
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post #16 of 190
careful examination of this pic



would show that if you mount the 5.25 fan adapter/hdd cage on the bottom most 5.25 bays it would still benefit the CPU portion of the overall cooling schema. the top of the adapter does not exceed the height of the PSU. however if you leave the fans above the PSU and the roof fan running. the resulting low pressure of those fans will simply redirect the airflow upwards where there are NO hot components to cool. you want the low pressure generated by the 2 rear exhaust behind the CPU to be the main exit points for airflow so it will carry the hot air out of the case.

if you look at your existing HDD cage, it's ENTIRELY blocking the cool airflow from the front intake fans from the TITANS which are 265w cards each. you are looking at 795w worth of heat that NEEDS cooling air and you are blocking part of that cool air feed with a huge brick of HDD's...

yes you do have 2 fans on the side panel but it's supplying air towards the exhaust end of the card. the intake side of the card is still towards the front of the case which the bottom front fan is supposed to supply. besides, considering the amount of heat the titans are putting out, and considering you are already using LOW CFM (small)fans in the 1st place it's a good practice to use all 4 to supply cool air for the GPU's. the 5.25 fan adaptor/cage is simply supplying additional air to help the CPU out.

this is your case, and you are going to do what you feel works best. but i'm just letting you know that you shouldn't underestimate the amount of heat that triple titans can put out and the existing fans you have on the case was NOT designed to cool down 3 x 265w cards. when that case was originally built. there was no such thing as 265w cards biggrin.gif we are talking about the beginning of the pentium4/GeForce2 with a whopping 32 megs of video RAM era back in 2000 biggrin.gif here is an example of the state of the art video card your case was engineered for smile.gif



if you were cooling a SINGLE card like this (there was only 1 AGP slot on the mobo tongue.gif ) then blocking the front intake fans with bricks of HDD wasn't a big deal. but for triple titans.... you may want to reconsider what is blocking your cool air intake and maybe remove any obstacles between the cool air and the titans smile.gif

your titans hits 70C idle... my GPU hits about 70C while i'm gaming... this means you are TOTALLY wasting your titans by not supplying it with enough cooling air... most people who has enough money to invest in 3xTitans have enough sense to get a case that can supply enough cooling to allow the titans to breath. i'm not saying your case is not a good one, but DO REALIZE it was NOT designed to handle the amount of heat you are subjecting the case under and steps are necessary to allow a case of that age to take on the thermal challenges of today's GPU's.
post #17 of 190
Thread Starter 
Long but amazing post! (Click to show)
Quote:
Originally Posted by psyclum View Post

careful examination of this pic



would show that if you mount the 5.25 fan adapter/hdd cage on the bottom most 5.25 bays it would still benefit the CPU portion of the overall cooling schema. the top of the adapter does not exceed the height of the PSU. however if you leave the fans above the PSU and the roof fan running. the resulting low pressure of those fans will simply redirect the airflow upwards where there are NO hot components to cool. you want the low pressur generated by the 2 rear exhaust behind the CPU to be the main exit points for airflow so it will carry the hot air out of the case.

if you look at your existing HDD cage, it's ENTIRELY blocking the cool airflow from the front intake fans from the TITANS which are 265w cards each. you are looking at 795w worth of heat that NEEDS cooling air and you are blocking part of that cool air feed with a huge brick of HDD's...

yes you do have 2 fans on the side panel but it's supplying air towards the exhaust end of the card. the intake side of the card is still towards the front of the case which the bottom front fan is supposed to supply. besides, considering the amount of heat the titans are putting out, and considering you are already using LOW CFM (small)fans in the 1st place it's a good practice to use all 4 to supply cool air for the GPU's. the 5.25 fan adaptor/cage is simply supplying additional air to help the CPU out.

this is your case, and you are going to do what you feel works best. but i'm just letting you know that you shouldn't underestimate the amount of heat that triple titans can put out and the existing fans you have on the case was NOT designed to cool down 3 x 265w cards. when that case was originally built. there was no such thing as 265w cards biggrin.gif we are talking about the beginning of the pentium4/GeForce2 with a whopping 32 megs of video RAM era back in 2000 biggrin.gif here is an example of the state of the art video card your case was engineered for smile.gif



if you were cooling a SINGLE card like this (there was only 1 AGP slot on the mobo tongue.gif ) then blocking the front intake fans with bricks of HDD wasn't a big deal. but for triple titans.... you may want to reconsider what is blocking your cool air intake and maybe remove any obstacles between the cool air and the titans smile.gif

your titans hits 70C idle... my GPU hits about 70C while i'm gaming... this means you are TOTALLY wasting your titans by not supplying it with enough cooling air... most people who has enough money to invest in 3xTitans have enough sense to get a case that can supply enough cooling to allow the titans to breath. i'm not saying your case is not a good one, but DO REALIZE it was NOT designed to handle the amount of heat you are subjecting the case under and steps are necessary to allow a case of that age to take on the thermal challenges of today's GPU's.

First: THANK YOU for taking the time to write that to me.

Let me see if I can summarize a few things to make sure I understand it right.

In this photo Yellow is my current air flow, Pinkish color is where you are saying my cold is being moved to, Blue is your solution


1. So would it be better for me to turn off the top PSU fans? I was under the impression that if I turned them off, more hot air would build up since the PSU would have no escape point. Or would it just escape through the non working top fan ports?
Then reverse the top 120mm fan this way it blows air down into the case. To cool the GPU / CPU since we are already moving the hot air to the rear (which is whymy feet at least they are always warm)

2. Move the HD Cage thats on the bottom and put them into my 5.25 bays? This is doable for sure. I just would need to come up with a way to clamp them in. Any solutions you guys can think of? Maybe I can just keep them in the cage as they are and find some zip ties to clamp them in? Didnt see an adaptor

3. The pictures below are the 2 80mm fans that sit in the front of the case specs from the Mouser site say these 2 fans are 80x80x25mm fans @ 31.4CFM at 28dBA. I personally barely hear them and it feels they do not push much cold air at all.




What you are saying is if I move the fan cage bay up I can purchase

from http://www.kustompcs.co.uk/acatalog/info_1386.html?gclid=CL3y9ImY8bwCFVKWtAodEAMAWA

The problem is, that I dont see how this would fit on my case since my case doesn't have anywhere on the front to place that massive front fan. Unless I am mistaken.

ZB3CLral.jpg?1DaRig_1274.jpg

3a Maybe I can buy a stronger fan to replace those 2 fans? Or what about getting a 120mm fan that will blow air towards the GPU that sits in the HD Cage. the only problem though is that it would just be recirculating the flow from the 2 80mm front fans. Also, the dust filter is mesh and I put a swifter dust collector in front so its easier to clean. IS this ok?

4. Should I add more fans in front of the gpu? Or is this just a bad all around idea, my gut says bad idea.
dwfdcLxl.jpg?1

4 Did I get that right?

5, Where should I put the new Fan controller I ordered ?
OMG this is hilarious https://www.youtube.com/watch?v=knlJRyDvBwE
But whats funny is I did not even remember I could speed the bottom fans. it was set to low. Just changed it to high.
Edited by dpoverlord - 3/2/14 at 2:25pm
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post #18 of 190
Actually your current airflow doesn't look that bad, it might just be too little. If you can get your HDD's up into the 5.25 slots then things will probably improve down there for the GPUs.
You'd need to get in as much air as you can down there because the titans are probably hungering for cold air. Do the cards run cooler if you leave the side panel off?

There are HDD cages that are made for 5.25" slots. Maybe you can use those.
this one's already silver and might fit your case color
http://www.frozencpu.com/products/12636/cpa-558/lian_li_ex-33a1-p_triple_35_internal_hdd_mount_kit_w_mesh_front_and_individual_power_control_-_silver.html
some other random one I found
http://www.newegg.com/Product/Product.aspx?Item=N82E16817996019

Those only fit 3 HDD's though and you said you have four. From the looks of it, moving three HDD's up might already get you a nice opening for cold air down there though.

As for getting a 120mm fan down there, you're right. Your case doesn't have a port there. If you need to replace the bottom fans with something bigger you'd need to cut a proper hole down there. The hard part is not making it look ugly. Covering up the intake with mesh would work but cutting straight lines or perfect circles with a dremel is kind of complicated wink.gif
How about getting a fan in the door right of your window? Does it fit or totally collide with the HDD cage?
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post #19 of 190
Thread Starter 
Quote:
Originally Posted by mosi View Post

You'd need to get in as much air as you can down there because the titans are probably hungering for cold air. Do the cards run cooler if you leave the side panel off?
Thanks! I added some more photos was editing my post as you replied back if you could look through again. I just realized y front 2 fans were set to low. I am going to monitor the temps. I will then take the side panel off. FYI it's never really on since with the side panel fans I can not properly close it due to the heatsink of my cpu. I am curious now though of making it an exhaust. However, it would blow the air onto my legs and thats worse than the rear.
Quote:
Originally Posted by mosi View Post

There are HDD cages that are made for 5.25" slots. Maybe you can use those.
Those only fit 3 HDD's though and you said you have four. From the looks of it, moving three HDD's up might already get you a nice opening for cold air down there though.
I now only have 3 in the cage. I put the 4th drive on the floppy bay area with the 2 ssds. I like the Lian Li one.. But wow $70 for that is really excessive dont you think? Will check prices elsewhere on it but that would fit everything perfectly. I wonder if I really need to "cool" the hard drives, I probably do though.
Quote:
Originally Posted by mosi View Post

this one's already silver and might fit your case color
http://www.frozencpu.com/products/12636/cpa-558/lian_li_ex-33a1-p_triple_35_internal_hdd_mount_kit_w_mesh_front_and_individual_power_control_-_silver.html
some other random one I found

http://www.newegg.com/Product/Product.aspx?Item=N82E16817996019
As for getting a 120mm fan down there, you're right. Your case doesn't have a port there. If you need to replace the bottom fans with something bigger you'd need to cut a proper hole down there. The hard part is not making it look ugly. Covering up the intake with mesh would work but cutting straight lines or perfect circles with a dremel is kind of complicated wink.gif
How about getting a fan in the door right of your window? Does it fit or totally collide with the HDD cage?

Not sure I am following you mean just get a regular fan and have it blowing into the case? I could do that but prefer not to. I am curious now if there will be a change with me settings the front fans to high. It has the lian li mesh dust cover and I put a swipper dust cover in front to block out the dust. Thoughts?

On Lian Li's site these options might work what ya think?

Not sure if I can re-use my hard drive cage


EX 23N
http://www.lian-li.com/en/dt_portfolio/ex-23n/

EX-332
http://www.lian-li.com/en/dt_portfolio/ex-332/

EX-33
http://www.lian-li.com/en/dt_portfolio/ex-33/

EX-33A1
http://www.lian-li.com/en/dt_portfolio/ex-33b1/

EX-34
http://www.lian-li.com/en/dt_portfolio/ex-34/
Edited by dpoverlord - 3/2/14 at 3:02pm
X99 King Build
(18 items)
 
Da Rig2
(20 items)
 
CPUMotherboardGraphicsRAM
Intel 5930k Asus Rampage V Extreme EVGA 1080 Founders Edition Crucial Ballistix 32GB Sport (4x8GB) 
Hard DriveHard DriveHard DriveHard Drive
2 - Samsung Pro 850 2TB Raid 0 Seagate Barracuda 3TB 7200rpm 3 WD Red 4TB NAS(No array) Samsung Pro 850 1 TB 
Optical DriveCoolingCoolingOS
LITE-ON 12X Blu-ray  ThermalRight SB-IE Custom 10 fans Win 7 X64 
MonitorKeyboardPowerCase
Samsung 55" / 65" Microsoft Sculpt EVGA G2-1300 Lian Li Custom Modded PC_70 
MouseAudio
Razer Deathadder Chroma Creative X7 
CPUMotherboardGraphicsGraphics
Xeon X5660 Gigabyte X58a-ud5 rev2 (Custom Bios mod FF3 10/... EVGA Titan EVGA Titan 
RAMHard DriveHard DriveHard Drive
12GB 3 2GB dimm G Skill PC3 10700 7-8-7-22 (84... Seagate 2 x 1.5GB 3 WD Red 3TB  Samsung Pro 840 
Optical DriveCoolingOSMonitor
LITE-ON 12X Blu-ray  10+fans and Ultra 120 Extreme cooler Win 7 x64 Dell 30" 
MonitorMonitorKeyboardPower
Dell 30" Dell 30" Microsoft 4000 ergonomic keyboard EVGA G2 1300 
CaseMouseMouse PadAudio
Lian Li Custom modded  Razer Copperhead Razer eXact Mat Onboard and Logitech speakers 
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Reply
X99 King Build
(18 items)
 
Da Rig2
(20 items)
 
CPUMotherboardGraphicsRAM
Intel 5930k Asus Rampage V Extreme EVGA 1080 Founders Edition Crucial Ballistix 32GB Sport (4x8GB) 
Hard DriveHard DriveHard DriveHard Drive
2 - Samsung Pro 850 2TB Raid 0 Seagate Barracuda 3TB 7200rpm 3 WD Red 4TB NAS(No array) Samsung Pro 850 1 TB 
Optical DriveCoolingCoolingOS
LITE-ON 12X Blu-ray  ThermalRight SB-IE Custom 10 fans Win 7 X64 
MonitorKeyboardPowerCase
Samsung 55" / 65" Microsoft Sculpt EVGA G2-1300 Lian Li Custom Modded PC_70 
MouseAudio
Razer Deathadder Chroma Creative X7 
CPUMotherboardGraphicsGraphics
Xeon X5660 Gigabyte X58a-ud5 rev2 (Custom Bios mod FF3 10/... EVGA Titan EVGA Titan 
RAMHard DriveHard DriveHard Drive
12GB 3 2GB dimm G Skill PC3 10700 7-8-7-22 (84... Seagate 2 x 1.5GB 3 WD Red 3TB  Samsung Pro 840 
Optical DriveCoolingOSMonitor
LITE-ON 12X Blu-ray  10+fans and Ultra 120 Extreme cooler Win 7 x64 Dell 30" 
MonitorMonitorKeyboardPower
Dell 30" Dell 30" Microsoft 4000 ergonomic keyboard EVGA G2 1300 
CaseMouseMouse PadAudio
Lian Li Custom modded  Razer Copperhead Razer eXact Mat Onboard and Logitech speakers 
  hide details  
Reply
post #20 of 190
Post #13, #16 & #18 are all saying similar thing.
Front and top in with back and side out moves cool air toward CPU and GpUs.
Back above PSU off as they only steal cool air.
Front bottom 92mm fans with HDDs moved up to top means more cool airflow toward GPUs
Back and side pull heated air from CPU and GPUs out of case.
There is very little heat from components that can warm up intake air from top and front intakes... only HDDs.
The 3 small back vents by PCI slots are also exhaust.
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  • Lian Li PC-70 Air Flow Case mod - Help re-routing Air / dremel and drill to make more efficient.
Overclock.net › Forums › Cooling › Air Cooling › Lian Li PC-70 Air Flow Case mod - Help re-routing Air / dremel and drill to make more efficient.