Suck or Blow

jesus2nd

jesus2nd

jesus2nd

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14 Jan 2013
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Leeds, YORKSHIRE
Now then,

This spike in the weather has increased my temp levels on both the processer and the GPU underload so I figured I'm best getting some more fans...But I don't have a clue what to go for.

My case is massive so size isn't an issue, off the top of my head I only have one fan on the top of the case and that's sucking out. Would it be worth setting up one on the front and one on the back (Suck cold air in, Blow warm air out)? Or would a larger side fan be more effective?

Hit me with your suggestions/insults/thoughts/ect...

Sam
 
Hey there dude, what case do you have and what sized fans do you already have installed in/on it. An exhaust fan (blowing out) on the back would be handy, as would an intake (sucking in) on the front.
Side fans I haven't used for a long time since my cpu cooler prevents me fitting one on the case.
If you give us more info, I'm sure the cooling gurus can help you out more
Hak
 
Eyup,

I have a thermaltake Element T Mid-Tower Chassis...its pretty chunky

I'm not at my PC at the moment but off of the top of my head I have either just one big one on the top sucking out and I think I have one set up on the back
 
I would be tempted to put a couple of decent 140mm fans in the front.
Depending on the size of your cooler on your cpu there is also that big fan you can put on the side of your case too.
What temps are you getting atm?
 
Hakanese said:
I would be tempted to put a couple of decent 140mm fans in the front.
Depending on the size of your cooler on your cpu there is also that big fan you can put on the side of your case too.
What temps are you getting atm?
Click to expand...

Around 30c idle'n and up to 50-60 under pressue. Same with the Graphics card.

I am aware that they are not TOO bad. I just want something to tinker around with though, see if I can get them any cooler.

I have a Phanteks PH-TC14PE_RD cooler installed over the CPU

Edit: Obviously before this weather they were a lot lower, doesn't help that I'm in the hottest room in the house.
 
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OLDPHART said:
A side panel fan may help with cooling as its blowing straight onto the mobo.
Click to expand...

Agreed.

Make sure the top pulls air out. And have front and side suck air in.

I have a side one on the HAF-X and recently installed a 120mm in the drive bays to suck more air in over the mobo. I can easily fit another 120mm in the front too, so I might do that this weekend.
 
2x 120mm or 140mm front fans with a decent static pressure rating should make a huge difference. Reason I say decent static pressure is because grill and HDD cage create significant resistance to airflow and fans without decent static pressure will loose much of their cfm to resistance.

If you are not using your 5.25 optical bays a 120mm intake there will blow air almost directly to CPU cooler.

Removing your unused PCI slot covers often helps too once you have decent intake airflow.

The important thing is to supply cool air to components. This usually means the more cool intake air directed toward the CPU / GPU coolers helps, but we have to be sure the hot air coming off of components is exhausted from case without mixing with / warming up the air going to components.

With the high heat generated by many of today's GPUs the old "air in the front/bottom and out back/top" is not always a good idea. Reason is the hot GPU exhaust can pre-heat the air going into CPU cooler.

To monitor how case is cooling a cheapo indoor/outdoor wired remote digital thermometer works great. You can monitor what the temp of air going into CPU / GPU cooler intakes actually is. Refrigerator or terrarium thermometer of same basic design work good too. Can be had for £3-4 on auction site. Twist a piece of insulated wire into the last 6" or so and mount it in front of cooler about 1-2" and set the readout where it's easy for you to keep an eye on to see what the air temp going into cooler is at idle and load. They shouldn't be more than a few degrees warmer.. 5c at most than the room. Every degree warmer is a degree warmer the component will be.

If you want to get fancy you can use PWM signal from CPU fan socket to control the case fans automatically so the ramp up as CPU demands air to stay cool. Can do this with PWM fans and PWM splitter with molex power socket or with 3pin voltage regulated fans and asking Tealc to make you a PWM adapter.
http://forums.overclockers.co.uk/showthread.php?t=18421145&highlight=pwm+adapter

Can even use PWM signal from GPU to control case fans supplying it. ;)
 
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Cheers lads, just got back from work so I can have a proper look at it. I was right, I only have one fan on the top and that's it.

Side panel does look at bit restricted by my CPU cooler so I might have to look for a low profile fan?

Definitely going to be getting some front and rear fans

Thanks
 
Do keep in mind you want airflow not airblow. Air flows just like water but is much harder to keep in on course. Using side and top fans blowing at 90 degree angle can help but can also confuse the front to back flow of air from cool intake to component and component's hot exhaust flowing out of case. This can cause the hot exhaust to mix with and raise the component intake air temp and therefore the component temp. Every degree increase in air going to components is a degree hotter the component will be.
 
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