How to get air flow to the bottom hard disk rack?

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smalltech

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Apr 10, 2009
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1. I have a disk that is on the bottom most rack that cannot receive air flow from the front fan because the front fan it too high. Is there any way to let the bottom disk receive air flow?

2. I intend to add fan b and fan a, does fan b or fan a helps to cool disk 3?

3. Should I install the kind of hard disk fan that will attach above/below the hard disk? Any recommendations?

Thanks

(note: rack above disk 1 gets very little/no air so i do not use it. i leave a blank layer between disk 1 and disk 2 for better air flow. i leave a blank layer between disk 2 and disk 3 for better air flow.)
 
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smorizio

smorizio

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the hard drive in the lower bay should be fine. hard drive dont make that much heat and there lots of air space around it. use a good hard rive tool like hdtune if the drive sits around 40-50c your fine. if it sits in the mid 60-70c then look to move the fans on the front case.
 
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jperry4747

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If you do desire to keep it cooler so you dont have to worry you can adjust your front fan and move it down to the next set of screw holes this should not cause any problem if you make sure your wires are moved so it be placed in properly and keep your system Cool. :j

Also you do have enough room for air that it should stay cool enough but if you do feel more comfortable moving the fan then go right ahead.


 
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smalltech

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If you get 2 smaller fans, the fan will only be attached with a corner screw?


The drive is 40 degrees.


CM 690 II Advanced


The drive is 40 degrees.
 
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smalltech

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"Then Google came along and published "Failure Trends in a Large Disk Drive Population", a research paper that some consider to be the Bible of HDD failure. Pulling data from more than 100,000 consumer hard disk drives, some of its major findings included:

Hard disk temperatures higher than 45°C led to higher failure rates

Temperatures lower than 25°C led to higher failure rates as well

Aging hard disk drives (3 years and older) were much more prone to failure when their average temperatures were 40°C and higher

What is a Safe Hard Disk Temperature Range?

Drawing conclusions from the Google paper, smaller independent studies and tech forum users:

Hard Disk Temperature
Less than 25°C:
Too cold

25°C to 40°C:
Ideal

41°C to 50°C:
Acceptable

More than 50°C:
Too hot

source http://www.buildcomputers.net/hdd-temperature.html"

I am asking how to make the disk 3 cooler. Please don't tell me XX degree is ok, I am just trying to make it cooler. My preference is as low as possible under 40 degrees. I am sure it will not get too cold by adding fans, at most a few degrees lower than 40 degrees.
 
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