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Can you help fix my 300 airflow? - Page 2

post #11 of 14
Quote:
Originally Posted by ehume View Post
Your problem is that you bought an Antec case. I made that mistake with my first case too. I was in a hurry, never built a computer before, bought it on Antec's rep.

Based on what I've seen in their designs, their cases deserve zero rep, with the sole exclusion of the DF-85.

I bought a much better case - and it cost $80 less. Don't waste any more money on that tomb you have your computer in.
Atleast Antec finally got it when they built the 1200. Took long enough for cable management huh.

Quote:
Originally Posted by iCrap View Post
0_0 how did you cable manage that 300 so nicely. Mines a dissaster compared to that.

Anyways moving my card to the lowest slot then having an intake fan on the side panel helped a bit. i also have a 120mm fan in the 3 drive bay slots. All fans are intake on my case... all the grills are cut out and no exhaust fans.
Yea my #2 PC's 300's cable management is a disaster too. I would drill but there is no 2nd side.

My 300's airflow is simple just 2 front intakes and a side intake to go along with the top and back stock fans (exhaust) IDK what else you can really do with that case.
Edited by jagz - 6/17/11 at 1:38pm
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Simplicity
(16 items)
 
#2 PC
(12 items)
 
 
CPUMotherboardGraphicsRAM
i5 6600k MSI Gaming Z170A EVGA GTX 980 Classified Crucial Ballistix Tactical (2 x 8GB) DDR4 2666 
Hard DriveCoolingOSMonitor
Samsung Pro 950 Cryorig H7 Windows 7 Ultimate x64 CrossOver 2560x1440 IPS 
PowerCaseMouseMouse Pad
Rosewill Capstone 550-M Phanteks Enthoo Pro RAZER Abyssus Mirror Special Edition XTRAC Ripper 
AudioAudioAudioAudio
Asus Xonar Essence STX Dayton Audio B652 Lepai Tripath Class-T Hi-Fi Audio Mini Amplifier 8 Inch 60-Watt Powered Subwoofer 
CPUMotherboardGraphicsRAM
Intel q9300 Intel DP45SG MSI TFII GTX 660 Corsair Dominator 1333 
Hard DriveCoolingOSMonitor
Corsair Force 3 90gb Deepcool Gammaxx 300 Windows 7 Samsung SyncMaster 932bw 
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Dell Rosewill Lightning 800w CM Stryker Dell 
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post #12 of 14
Quote:
Originally Posted by KC_Flip View Post
If I lower the card, I wonder if an intake fan on the side panel (roughly between the card and PSU) would alleviate any competition. That could also provide some cool air directly to the card.
Reply- Yes, I forget there is one fan opening on side panel of Antec 300. You definitely should try this.

Not sure how well this would work as it's a random thought, but adding another fan above that as exhaust could pull some of the air from the top of the card as well as air from the front of the card as it is blown back by the elbow.
Reply-I am not sure which fan you are referring to. Where is this fan located?

Unfortunately, 2 of the 3 slots are being used. The second slot has a fan controller. Before using the controller, I had two 70mm fans side-by-side, which fit perfectly into the two bays. Although, I may still be able to fit the fans behind the controller and get decent airflow from one slot being open.
Reply-Yes. Member ehume has done something similar. He added a 120mm fan which fits three 5.25'' bays but 1 of the 3 bays is occupied by a fan controller. So, this idea works.
http://www.overclock.net/air-cooling...y-warning.html

Also, I do have an Antec Spot Cooler as you mentioned. Would that completely negate the need for some sort of elbow to be added?
Reply-The elbow has 2 functions. It not only directs the card's exhaust to make that turn, it also shields the card's front from the incoming air of the case front fan. It prevents the card's hot exhaust being pushed back into the card. So, I would keep the elbow.

The hot exhaust from card's front does not have a large velocity of its own. So, it is possible that it cannot make that turn by itself at the elbow. That is why a PCI slot fan with a longer length can help as its fan is closer to the elbow to provide a drafting force. If this is not enough (or if you use a shorter length PCI slot fan), then a Spot Cool is needed at that location to provide the necessary draft.




Sorry about that, the rig in question is in my sig - Nevermore.
Reply-OK, I see
See above
post #13 of 14
Thread Starter 
Had to steal your reply formatting idea.
Quote:
Originally Posted by windfire View Post
Yes, I forget there is one fan opening on side panel of Antec 300. You definitely should try this.

Reply - My 300 is actually modded with a window, but I could easily cut holes in the acrylic. I spent the last hour with a piece of cardboard and some fans trying to mockup a setup for the side panel before cutting any holes, but I just didn't have any luck.

I am not sure which fan you are referring to. Where is this fan located?

Reply - I was referring to possibly adding an intake fan on the side (somewhat at the level between PSU and card) and also adding an exhaust fan right above it to pull some of the exhaust from the top of the card. Experiments with the cardboard side panel didn't show any improvement with temps though.

Yes. Member ehume has done something similar. He added a 120mm fan which fits three 5.25'' bays but 1 of the 3 bays is occupied by a fan controller. So, this idea works.
http://www.overclock.net/air-cooling...y-warning.html

Reply - I may give it a shot then.

The elbow has 2 functions. It not only directs the card's exhaust to make that turn, it also shields the card's front from the incoming air of the case front fan. It prevents the card's hot exhaust being pushed back into the card. So, I would keep the elbow.

The hot exhaust from card's front does not have a large velocity of its own. So, it is possible that it cannot make that turn by itself at the elbow. That is why a PCI slot fan with a longer length can help as its fan is closer to the elbow to provide a drafting force. If this is not enough (or if you use a shorter length PCI slot fan), then a Spot Cool is needed at that location to provide the necessary draft.

Reply - Now I just need to figure what I can use for the elbow.
windfire, I greatly appreciate all of the input you have given, as well as everyone else. I'm beginning to think though, that ehume might have been right from the beginning. With all of the changes/mods that will need to be made to change the airflow style of this case, it may be time for something new. HAF 922 anyone?

I'll run it without the side panel for the time being, until I can figure out what I want to do. Thanks again.
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post #14 of 14
Quote:
Originally Posted by KC_Flip View Post
Had to steal your reply formatting idea.


windfire, I greatly appreciate all of the input you have given, as well as everyone else. I'm beginning to think though, that ehume might have been right from the beginning. With all of the changes/mods that will need to be made to change the airflow style of this case, it may be time for something new. HAF 922 anyone?

I'll run it without the side panel for the time being, until I can figure out what I want to do. Thanks again.

As you have an acrylic windowed side panel and can open up any window that you like, this is even better as you can position the fan at exactly where it is needed.

Pointing an intake fan right at the space between the card and the PSU should be beneficial if the front case fan(s) do not supply enough air to reach both the card and the PSU. And you are smart to use a cardboard paper to simulate the side panel to study various side panel positions.

However, I do not think adding a second side panel fan (to extract the hot air exhausted from the card) would help. This is because the majority of card's hot exhaust comes from its front (vs from its side). And if you position this fan closer to the card's front, it will not only suck out the hot air but will also intercept the cold air (coming from the case front) to reach the card's intake fan. So, it does harm and good simultaneously. Not a good idea, IMHO.

Even if you opt for a new case, you would still have to manage well the thermal dump from the card's front.
I look ahead and propose a 'top-exhaust' solution to solve this problem. I have suggested this method to some members who have reported good result. Here are a few:- (all having cards with internal heat dump)

1. http://www.overclock.net/air-cooling...w-chassis.html
(HAF932 with single HD5970BE Post #16 and 28)

2. http://www.overclock.net/computer-ca...eed-fan-2.html
(CM690 II Advanced with Asus GTX570 DirectCU II post #15)

3. http://www.overclock.net/air-cooling...ase-fan-3.html
(Antec 300 with Asus HD5850 DirectCU II )

4. http://www.overclock.net/computer-ca...ii-best-2.html
(HAF932 with MSI GTX580 Twin Frozr II SLI. Post #12)

HAF 922 is a good case. So is 690 II Advanced. But HAF 932 should be the best, IMHO.

Edit 1:
To form the elbow, I think a cheap and good material is transparent plastic that comes from a computer fan or thermal paste product wrap. Cut the right size and shape and fold it.


Edited by windfire - 6/17/11 at 8:16pm
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