Will this fan setup work?

TheRift said:
No-one has mentioned this, but that fan setup is a crap idea: heard of a short circuit before? Air comes in on one fan, then sucked out almost immediately by the other fan right above it, the other fan will then suck that outgoing air back in again.

I usually run more intakes, more often they sit on the hard drives. Leaving no fan on my drives with just an exhaust fan caused nonsense. With the new H50 installed I keep some fans on the side panel to offer some cooling air for the radiator since I had no intention of turning other fans around. Besides, with the rear fan quite close to the meshed side panels, more air gets pull in and straight out rather than the hot gathering air.
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the fans don't suck that strong, the idae is that it creates a airflow in the case, removing heat pockets, the fact that heat rises to the top, pulled out, rises past the case. cool air is pushed in from lower down outside from to replace the hot air that has been pushed out by the top fan....


So whats the consensus?
 
Put your hand at the back of the fan, is the hot air rising immediately? Put your hand near the intake fan, where's the air pulled from? Look at the intake port of the intake fan, it's not pulling air in in a straight line. Some expelled hot air is going to pulled in again, but then probably not going to make much of a difference 'cos it's really a minimal amount of heat you feel in the air.

Putting it into practice is the only way to go anyway.
 
As long as there's ventilation holes on the bottom from where can enter then all is good. :)
 
If you guys have space on your motherboard tray for this, then it is worth more than having many 12cm fans:

http://c1.neweggimages.com/NeweggImage/productimage/00-887-011-03.jpg

Cooler Master STF-B01-E1. Cut a hole in the tray and mount this on it. It'll flow air across the motherboard as well as under it.

I just broke my one about a week ago. It's now R300 or so which is 3x what the original cost 5-6 years ago.
 
:D

Tube fan, about 34cm long, motor is on the top. Motor can be a bit buzzy though. I had it in my new rig about 2 weeks ago, but the bearing ofcourse has become noisy over 5-6 years so I removed it. Northbridge temps now noticeably up.
 
TheRift said:
:D

Tube fan, about 34cm long, motor is on the top. Motor can be a bit buzzy though. I had it in my new rig about 2 weeks ago, but the bearing ofcourse has become noisy over 5-6 years so I removed it. Northbridge temps now noticeably up.
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Buzzy? Not cool...

The cap buzzing on my GPU is bad enough...
 
It was quiet for many years. I think I messed it up somewhere along the line (dropping it, etc). I must actually look around for other ones like it. I'm sure it is not a unique piece of kit.
 
It r true :D

I just went to dig the fan out the bin and have another look. The fan part is supported in a bearing housed in a anti-vibration rubber mounting on the one end. Seems that bearing is the one that actually got noisy. Pity it broke after so long. :(
 
For the people that have a intake fan in the front. Wrap the fan with a panty hose, will keep some od the dust away :D
 
I know this is sort of a high-jack:

My intake fan on my case has "stopped" working. The reason I use "" is because it is still spinning but I can not feel ANY air coming from it even 3 cm away... I have the same exhaust fans which can be felt 50cm away. All the fans are set to 100% and since my intake has "stopped" my GPU starts to heat up :(

What could cause this?
Thanks
 
PCsToGo said:
I know this is sort of a high-jack:

My intake fan on my case has "stopped" working. The reason I use "" is because it is still spinning but I can not feel ANY air coming from it even 3 cm away... I have the same exhaust fans which can be felt 50cm away. All the fans are set to 100% and since my intake has "stopped" my GPU starts to heat up :(

What could cause this?
Thanks
Click to expand...

Did you check that by removing them from the case or are you testing it by putting your hand inside the case? If there's a filter on the front of it then it might be clogged. My old ones were clogged bad enough for the filter to deform as if it was being sucked in by the fan.
 
Random717 said:
I've only ever seen aftermarket fans that do this... the factory defaults all blow down onto the heatsink?
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No. I've worked on many PCs and they all blow away (suck) from the heatsink. Even my old P1 in the garage is the same.

You never want to blow on a heatsink - dust collects and its the devil. I've seen CPUs burn becuase there heatsinks where clogged up with dust.
 
Well that's just the weirdest thing then. Every CPU I've ever had blows air down.

And the dust reasoning doesn't apply. Now instead of the fan blowing dust down onto the heatsink, it winds up sucking dust into the heatsink from the sides. Either way, dust is going to get in. If you think the dust blowing down blocks the fins at the top, then if it is pulling air out the top it will block the fins on the side.
 
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