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Air Conditioner Vent

post #1 of 23
Thread Starter 
Okay so I noticed my temps get pretty hot now. My AC vent is on the other side of my room and I was wondering what would happen if I moved my desk closer to the vent. I read that I would have to worry about condensation and what not. But what if I am not blowing the air directly into the case? If I blast the AC and it fills the room with cold air how would that be any different than having the air directed towards the case and into the PC?
post #2 of 23
Quote:
Originally Posted by igrease View Post

Okay so I noticed my temps get pretty hot now. My AC vent is on the other side of my room and I was wondering what would happen if I moved my desk closer to the vent. I read that I would have to worry about condensation and what not. But what if I am not blowing the air directly into the case? If I blast the AC and it fills the room with cold air how would that be any different than having the air directed towards the case and into the PC?

My brother has his high powered AC unit within inches of his PC for years now and no issues with condensation or anything.

I doubt you'r room is going to get below the dew point and cause condensation, that sounds very unlikely. I'v never had my house in condensation everywhere because my AC was too strong. wink.gif
post #3 of 23
Quote:
Originally Posted by igrease View Post

Okay so I noticed my temps get pretty hot now. My AC vent is on the other side of my room and I was wondering what would happen if I moved my desk closer to the vent. I read that I would have to worry about condensation and what not. But what if I am not blowing the air directly into the case? If I blast the AC and it fills the room with cold air how would that be any different than having the air directed towards the case and into the PC?

 

No, condensation is not possible. To see why, just imagine yourself taking a warm or a hot beverage outside on a cold day in Fall or in Winter. That hot beverage is like your computer. The cold Fall air is like the air form the air conditioning. In order for condensation to be possible, you would have to be exposing a cold object to warm or hot humid air. Think about what happens when you take a cold beverage outside on a hot and humid day. That cold beverage can't represent your computer because things like your CPU and video card generate heat. Even if you are constantly blasting cold air-conditioned air at them, they will still never become cold enough to have condensation. You'd have to blast them with extremely frigid sub-zero temp air and then immediately stop blasting that air at them and you'd have to have a warm and humid room.

 

I will never understand why people say that condensation is possible when cooling your computer with cold air like this. They must think they live in a different universe where the laws of physics are different.

 

Anyway, the difference between indirect and direct is you: indirect will result in you probably needing to wear a sweatshirt and long pants as though it's a cold winter day. Directly might be a lot more tolerable. lol

 

Before you do anything though, what are your temps and when are you seeing these temps?

 

Quote:
Originally Posted by Shaded War View Post


My brother has his high powered AC unit within inches of his PC for years now and no issues with condensation or anything.

I doubt you'r room is going to get below the dew point and cause condensation, that sounds very unlikely. I'v never had my house in condensation everywhere because my AC was too strong. wink.gif

 

The reason why you've never had condensation is because it's impossible! The only places where condensation could occur are inside your freezer or refrigerator when you open their doors. Or, on any item that you take out! That's it. That's the only way condensation would be possible: the item in question has to be far enough below the Dew Point for that to occur. There is absolutely no way an object at room temperature (or higher like computer parts) can have condensation because that object will be the same temperature as the air mass that it is inside of. Yes, even metal with as cold as it feels is the same temperature. It only feels colder because materials like metal conduct heat away from your skin a LOT faster than other objects like say cloth.


Edited by TwoCables - 4/24/14 at 5:23pm
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post #4 of 23
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

No, condensation is not possible. To see why, just imagine yourself taking a warm or a hot beverage outside on a cold day in Fall or in Winter. That hot beverage is like your computer. The cold Fall air is like the air form the air conditioning. In order for condensation to be possible, you would have to be exposing a cold object to warm or hot humid air. Think about what happens when you take a cold beverage outside on a hot and humid day. That cold beverage can't represent your computer because things like your CPU and video card generate heat. Even if you are constantly blasting cold air-conditioned air at them, they will still never become cold enough to have condensation. You'd have to blast them with extremely frigid sub-zero temp air and then immediately stop blasting that air at them and you'd have to have a warm and humid room.

I will never understand why people say that condensation is possible when cooling your computer with cold air like this. They must think they live in a different universe where the laws of physics are different.

Anyway, the difference between indirect and direct is you: indirect will result in you probably needing to wear a sweatshirt and long pants as though it's a cold winter day. Directly might be a lot more tolerable. lol

Before you do anything though, what are your temps and when are you seeing these temps?


The reason why you've never had condensation is because it's impossible! The only places where condensation could occur are inside your freezer or refrigerator when you open their doors. Or, on any item that you take out! That's it. That's the only way condensation would be possible: the item in question has to be far enough below the Dew Point for that to occur. There is absolutely no way an object at room temperature (or higher like computer parts) can have condensation because that object will be the same temperature as the air mass that it is inside of. Yes, even metal with as cold as it feels is the same temperature. It only feels colder because materials like metal conduct heat away from your skin a LOT faster than other objects like say cloth.
Quote:
Originally Posted by TwoCables View Post

No, condensation is not possible. To see why, just imagine yourself taking a warm or a hot beverage outside on a cold day in Fall or in Winter. That hot beverage is like your computer. The cold Fall air is like the air form the air conditioning. In order for condensation to be possible, you would have to be exposing a cold object to warm or hot humid air. Think about what happens when you take a cold beverage outside on a hot and humid day. That cold beverage can't represent your computer because things like your CPU and video card generate heat. Even if you are constantly blasting cold air-conditioned air at them, they will still never become cold enough to have condensation. You'd have to blast them with extremely frigid sub-zero temp air and then immediately stop blasting that air at them and you'd have to have a warm and humid room.

I will never understand why people say that condensation is possible when cooling your computer with cold air like this. They must think they live in a different universe where the laws of physics are different.

Anyway, the difference between indirect and direct is you: indirect will result in you probably needing to wear a sweatshirt and long pants as though it's a cold winter day. Directly might be a lot more tolerable. lol

Before you do anything though, what are your temps and when are you seeing these temps?


The reason why you've never had condensation is because it's impossible! The only places where condensation could occur are inside your freezer or refrigerator when you open their doors. Or, on any item that you take out! That's it. That's the only way condensation would be possible: the item in question has to be far enough below the Dew Point for that to occur. There is absolutely no way an object at room temperature (or higher like computer parts) can have condensation because that object will be the same temperature as the air mass that it is inside of. Yes, even metal with as cold as it feels is the same temperature. It only feels colder because materials like metal conduct heat away from your skin a LOT faster than other objects like say cloth.

Well when I first build my PC and had the stock heatsink on my 2500k, it was hitting 66c @ 3.3 and idled at 45c. I then bought my Hyper 212 and that helped a lot. My new temps were around 55c at 4.0 Ghz and idled at 30c. I've noticed over the last year my temps slowly but surely increased. Now I get 66c ~ 70c doing the same applications @ 4.0Ghz with even less voltage than before and 39c idle. A few months ago I took off my Hyper 212 and blew all the dust off and reapplied the thermal paste but nothing changed. And now that I just got my r9 290, that thing chills at 78c while gaming. For some reason something has happened and my temps just keep slowly rising. I live on the East Coast and it is fairly humid on this side. Today's humidity was 29%
post #5 of 23
Quote:
Originally Posted by igrease View Post



Well when I first build my PC and had the stock heatsink on my 2500k, it was hitting 66c @ 3.3 and idled at 45c. I then bought my Hyper 212 and that helped a lot. My new temps were around 55c at 4.0 Ghz and idled at 30c. I've noticed over the last year my temps slowly but surely increased. Now I get 66c ~ 70c doing the same applications @ 4.0Ghz with even less voltage than before and 39c idle. A few months ago I took off my Hyper 212 and blew all the dust off and reapplied the thermal paste but nothing changed. And now that I just got my r9 290, that thing chills at 78c while gaming. For some reason something has happened and my temps just keep slowly rising. I live on the East Coast and it is fairly humid on this side. Today's humidity was 29%

 

29% humidity means nothing without knowing the temperature. Also, humidity means nothing to air cooling because you're talking about inanimate, non-biological objects. Even if they were biological, they would have to be warm-blooded biological creatures for them to feel the effect of warm or hot humid air. Also, for 29% humidity to feel truly "humid" to us, the temperature would have to be at least a 100°F.

 

So, 29% at 70°F is dry and very comfortable. That results in a Dew Point of only 36°F:

 

http://www.dpcalc.org/ (a Dew Point calculator - use the radio buttons above the sliders to adjust it in different ways).

 

This means that water vapor can only condense on an object if that object is 36°F or colder.

 

Anyway, is this the Hyper 212 Plus, or EVO?


Edited by TwoCables - 4/24/14 at 6:35pm
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post #6 of 23
Quote:
Originally Posted by igrease View Post


Well when I first build my PC and had the stock heatsink on my 2500k, it was hitting 66c @ 3.3 and idled at 45c. I then bought my Hyper 212 and that helped a lot. My new temps were around 55c at 4.0 Ghz and idled at 30c. I've noticed over the last year my temps slowly but surely increased. Now I get 66c ~ 70c doing the same applications @ 4.0Ghz with even less voltage than before and 39c idle. A few months ago I took off my Hyper 212 and blew all the dust off and reapplied the thermal paste but nothing changed. And now that I just got my r9 290, that thing chills at 78c while gaming. For some reason something has happened and my temps just keep slowly rising. I live on the East Coast and it is fairly humid on this side. Today's humidity was 29%

Wait, what???? How is that humid. Average humidity in Minnesota is 50 to 85%.

85%, now that's humid especially when its over 80°F. You will soak in your own sweat and beg for mercy! I have to hide in my air conditioned 55°F basement area all summer and hide from the unforgiving summer sun. santa.gif

Today's humidity is 87% here.
Edited by Shaded War - 4/24/14 at 6:49pm
post #7 of 23
Quote:
Originally Posted by Shaded War View Post


Wait, what???? How is that humid. Average humidity in Minnesota is 50 to 85%.

85%, now that's humid especially when its over 80°F. You will soak in your own sweat and beg for mercy! I have to hide in my air conditioned 55°F basement area all summer and hide from the unforgiving summer sun. santa.gif

Today's humidity is 87% here.

 

Oh wait a minute. I wonder if he meant to type 92%. I mean, he's right: the east coast is usually the most humid part of the country due to the build-up of moisture in the air as it moves across the country. By the time it ends up on the east coast, it's extremely humid. That's why the west coast is so dry.


Edited by TwoCables - 4/24/14 at 6:53pm
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It's a computer!
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post #8 of 23
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Oh wait a minute. I wonder if he meant to type 92%. I mean, he's right: the east coast is usually the most humid part of the country due to the build-up of moisture in the air as it moves across the country. By the time it ends up on the east coast, it's extremely humid. That's why the west coast is so dry.

No that was not a typo but here in VA it can get pretty humid.
post #9 of 23
Quote:
Originally Posted by igrease View Post


No that was not a typo but here in VA it can get pretty humid.

 

I know, but 29% is very dry. That's the opposite of "humid".

 

Anyway, I finally saw in your Profile (you never answered this question) that you have the Hyper 212 Plus. So, now I have another question for you:

 

Did you fill the gaps in between the exposed heatpipes as shown below before applying the paste normally? Or, did you just apply the paste as you do with any solid-base heatsink?

 

http://archive.benchmarkreviews.com/index.php?option=com_content&task=view&id=150&Itemid=62&limit=1&limitstart=5

 

(ignore the part about lapping the heatsink - that's going just a bit far I think lol)

It's a computer!
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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It's a computer!
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post #10 of 23
Thread Starter 
I just did what I did last time. I put a pea size amount of thermal paste on the cpu and put the heatsink on. And yes I guess I have the Plus Hyper 212 because of the fans but other than the fan I see no difference between them.
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