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Author Topic: [WTS] Delta 120mm 130CFM Fan PROMOTION: 4 fans for the price of 3!  (Read 12743 times)
godofal
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September 16, 2011, 02:52:23 AM
 #21

quick question: how would this fan compare to a reference cooler on a HD5870? can anyone tell me how it compares to that?
in terms of sound production ofc
would it be louder than that cooler on 50% speed?
reason i'm asking is becouse i'm mining in my bedroom, and 50% on that card is really max for my comfort Tongue

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Every time a block is mined, a certain amount of BTC (called the subsidy) is created out of thin air and given to the miner. The subsidy halves every four years and will reach 0 in about 130 years.
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sc8nt4u (OP)
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September 16, 2011, 02:57:04 AM
 #22

quick question: how would this fan compare to a reference cooler on a HD5870? can anyone tell me how it compares to that?
in terms of sound production ofc
would it be louder than that cooler on 50% speed?
reason i'm asking is becouse i'm mining in my bedroom, and 50% on that card is really max for my comfort Tongue

No, it'd be louder. I'd say it's about 80% fan on a 5970.
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September 16, 2011, 06:11:42 PM
 #23

allright, im going to pass then
had this idea of using some wide tubing + that fan to make an air duct for fresh air
but if it would mean even more noise than i have right now i'l pass

thanks anyway!

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January 16, 2012, 01:06:50 AM
 #24

probably the best thing I have ever purchased with bitcoin is these fans!!
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January 22, 2012, 09:39:50 PM
 #25

bump for ya
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February 03, 2012, 03:43:15 AM
 #26

I got mine in yesterday, they were packaged nicely, arrived in working order, and sound like vacuum cleaners (and move about as much air!).

They are awesome, and for the price can't be beat.
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February 04, 2012, 07:47:00 PM
 #27

Can anyone comment on how loud (or quiet) these fans are when used with a fan controller?
sc8nt4u (OP)
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February 05, 2012, 05:14:04 AM
Last edit: February 05, 2012, 05:30:37 AM by sc8nt4u
 #28

Can anyone comment on how loud (or quiet) these fans are when used with a fan controller?

Assuming a linear correlation between voltage, CFM, and RPM. Turning the voltage down to 5V would net you a ~ 0.417 ratio (5V divided by 12V), resulting in ~54RPM at ~1333 RPM @ 5V .

However, sound is on a logarithmic scale and would scale differently. The equation to figure out sound would look something like this:

log(1333 rpm/3200 rpm) = log(x dB/48 dB), x ~ 20dB. Looking up other fans that spin @ 1300rpm +/- 10%, I see that this noise level aligns well with other fans.
rjk
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February 05, 2012, 05:18:46 AM
 #29

Can anyone comment on how loud (or quiet) these fans are when used with a fan controller?
See post 25, just a few post up from yours.

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February 06, 2012, 07:57:02 PM
 #30

Fans aren't silent but they aren't designed to be...

They have helped my rigs cool down and can run the gpu fans a bit lower.

Buy with confidence!

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February 09, 2012, 06:12:44 AM
 #31

Seller was very prompt, faster than I'd expect. This 1 fan in a nzxt tempo evo made my temps drop 15C, its really pumping air in there. Contemplating buying 2 more to make it a vacuum, But doubt i'll survive the noise.
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February 09, 2012, 06:35:59 AM
 #32

Seller was very prompt, faster than I'd expect. This 1 fan in a nzxt tempo evo made my temps drop 15C, its really pumping air in there. Contemplating buying 2 more to make it a vacuum, But doubt i'll survive the noise.

 Grin
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February 10, 2012, 02:58:03 PM
 #33

bump
mc_lovin
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February 12, 2012, 03:47:52 AM
 #34

bump for the fan man!
JWU42
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February 14, 2012, 03:29:54 AM
 #35

8 fans total and still could use more...

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February 15, 2012, 10:03:26 PM
 #36

Score again for the fan man. Another 4 fans, and fast delivery.
sc8nt4u (OP)
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February 19, 2012, 04:46:25 AM
 #37

bump
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February 24, 2012, 12:23:37 AM
 #38

bump
DBordello
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February 29, 2012, 05:27:43 AM
 #39

I bought four of these fans.  The product was well packed and delivered quickly.  The fans are fantastic.

However, the 3 pin to molex adapters are absolute junk.  Before I had even used two of them, one had pulled the prong out of the molex adapter and two others had the wires separate from the molex prongs. 

If you purchase these, I advise you consider buying 3 pin to molex adapters separately. 

Dan

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March 03, 2012, 08:52:42 PM
 #40

bump for ya

However, the 3 pin to molex adapters are absolute junk.  Before I had even used two of them, one had pulled the prong out of the molex adapter and two others had the wires separate from the molex prongs. 

If you purchase these, I advise you consider buying 3 pin to molex adapters separately. 

Dan

I haven't had any issues with my adapters when I got them.  Might just be luck of the draw, but I like these molex adapters.  I also have a molex crimper in case they came loose Smiley
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