Those cfm and dba figures are just reference only. In most cases they're fairy tales so it's nothing really to compare.
Rear Fan v2 (or any case fan), lets discuss casing fan setup
Rear Fan v2 (or any case fan), lets discuss casing fan setup
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Oct 7 2006, 10:09 AM
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VIP
23,414 posts Joined: Jan 2003 From: Taipei |
Those cfm and dba figures are just reference only. In most cases they're fairy tales so it's nothing really to compare.
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Oct 7 2006, 05:01 PM
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Senior Member
2,851 posts Joined: Jun 2006 |
QUOTE(sniper on the roof @ Oct 7 2006, 10:09 AM) Those cfm and dba figures are just reference only. In most cases they're fairy tales so it's nothing really to compare. LOL what a way to describe it but yes the DB and CFM all up to them to put one, there is no standard platform to compare, so its good that we discuss it here instead of trial and error (and offloading ur stuff in garage sales |
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Oct 7 2006, 11:18 PM
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Senior Member
2,249 posts Joined: Jan 2003 |
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Oct 8 2006, 12:13 AM
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VIP
23,414 posts Joined: Jan 2003 From: Taipei |
QUOTE(vey99 @ Oct 7 2006, 05:01 PM) LOL what a way to describe it but yes the DB and CFM all up to them to put one, there is no standard platform to compare, so its good that we discuss it here instead of trial and error (and offloading ur stuff in garage sales Basically..50 or 80cfm doesn't matter also.Personally.. if theres no motor noise at 5v and doesn't whine at full speed..that's a good fan di. I can guarantee that if u fit different fans of the same size n same design/blade amount...run them at same rpm via controller...there's no diff no matter what the spec says. |
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Oct 8 2006, 03:12 AM
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All Stars
14,909 posts Joined: Jul 2005 |
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Sep 9 2008, 10:48 PM
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Elite
8,711 posts Joined: Nov 2007 From: Butterworth, PG / Machang, Kelantan |
How do I control the AC Ryan 120mm fan speed? Some of them are connected to my mobo & other to PSU peripheral connectors
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Sep 9 2008, 11:24 PM
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Senior Member
2,465 posts Joined: Sep 2007 From: Kuala Lumpur Status: Freeride not dead |
Did u try speedfan? or u can get some cheap fan controllers from ngbh.
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Sep 10 2008, 12:12 AM
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Elite
8,711 posts Joined: Nov 2007 From: Butterworth, PG / Machang, Kelantan |
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Sep 10 2008, 12:42 AM
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Senior Member
2,547 posts Joined: Oct 2007 |
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Jan 25 2009, 03:58 PM
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Junior Member
17 posts Joined: Dec 2008 From: shah alam |
its true adding fan = hight/more voltage used
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Jan 27 2009, 10:34 AM
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Junior Member
444 posts Joined: Nov 2008 |
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Feb 16 2009, 11:38 PM
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Senior Member
1,141 posts Joined: Aug 2005 |
Hey guys..
Is it true that CFM doesn't matter? I thought of getting the 'Cooler Master High Performance Silent LED Fan' which has 90 CFM. Any other good fans to recommend? |
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Feb 17 2009, 12:23 AM
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All Stars
12,413 posts Joined: Jan 2008 From: KL - Cardiff - Subang - Sydney |
Guys any good led/neon 120cm fans to recommend?other than CM (they die fast) and Xigmatek (better than CM but only 1 colour available)
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Feb 17 2009, 12:23 AM
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Senior Member
2,465 posts Joined: Sep 2007 From: Kuala Lumpur Status: Freeride not dead |
CFM matters. CFM is the amount of air ma. So the more is the merrier.
There's few type of fan in my list like CM 90cfm, Xigmatek XLF, Silverstone 121/123. |
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Feb 17 2009, 02:52 AM
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Senior Member
1,550 posts Joined: Aug 2008 |
QUOTE(chyu89 @ Feb 17 2009, 12:23 AM) CFM matters. CFM is the amount of air ma. So the more is the merrier. yeah... but ure missing another important thing, air pressureThere's few type of fan in my list like CM 90cfm, Xigmatek XLF, Silverstone 121/123. well for casing, high cfm fans is enough, but for 3rd party hsf, air pressure is important too... and better if the fan has focus flow |
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Feb 17 2009, 06:17 PM
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Senior Member
2,547 posts Joined: Oct 2007 |
QUOTE(deejay220989 @ Feb 16 2009, 11:38 PM) Hey guys.. Performance of fans is typically measured by air volume per time (usually in cubic feet per minute, CFM), or by air speed. CFM values are more meaningful than air speed measurements, since they take into account the size of the fan. Obviously, a 120x120mm fan will provide better cooling than a 50x50mm fan, even if both produce the same air speed.Is it true that CFM doesn't matter? I thought of getting the 'Cooler Master High Performance Silent LED Fan' which has 90 CFM. Any other good fans to recommend? Given CFM specifications are valid only when the pressure on both sides of the fan is equal; that is, when the fan is operating in free space. Under real-life conditions, when the fan is installed in a device, the specified CFM rating of the fan will not be reached; here, it depends on installation and on the overall design of the cooling system. Larger fans provide a better ratio between air throughput and noise. To achieve the best compromise between cooling performance and noise, chose the largest fan possible. SOS: http://www.heatsink-guide.com/ QUOTE(ZeneticX @ Feb 17 2009, 12:23 AM) Guys any good led/neon 120cm fans to recommend?other than CM (they die fast) and Xigmatek (better than CM but only 1 colour available) hmm..try nucleartec led fan ... but their cfm is not so high la....suitable for modders... the led is doing fine for me around 1 year before i sold it |
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Feb 17 2009, 08:50 PM
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Senior Member
1,141 posts Joined: Aug 2005 |
QUOTE(tkh_1001 @ Feb 17 2009, 06:17 PM) Performance of fans is typically measured by air volume per time (usually in cubic feet per minute, CFM), or by air speed. CFM values are more meaningful than air speed measurements, since they take into account the size of the fan. Obviously, a 120x120mm fan will provide better cooling than a 50x50mm fan, even if both produce the same air speed. Thanks for your explaination!Given CFM specifications are valid only when the pressure on both sides of the fan is equal; that is, when the fan is operating in free space. Under real-life conditions, when the fan is installed in a device, the specified CFM rating of the fan will not be reached; here, it depends on installation and on the overall design of the cooling system. Larger fans provide a better ratio between air throughput and noise. To achieve the best compromise between cooling performance and noise, chose the largest fan possible. SOS: http://www.heatsink-guide.com/ hmm..try nucleartec led fan ... but their cfm is not so high la.... suitable for modders... the led is doing fine for me around 1 year before i sold it Anyone has any good high CFM fans to recommend? Is the 'Cooler Master 90 CFM High Performance Silent LED Fan' good? I see that alot of ppl like Scythe's fans..but they are expensive -.- |
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Feb 17 2009, 10:26 PM
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All Stars
12,413 posts Joined: Jan 2008 From: KL - Cardiff - Subang - Sydney |
QUOTE(tkh_1001 @ Feb 17 2009, 06:17 PM) Performance of fans is typically measured by air volume per time (usually in cubic feet per minute, CFM), or by air speed. CFM values are more meaningful than air speed measurements, since they take into account the size of the fan. Obviously, a 120x120mm fan will provide better cooling than a 50x50mm fan, even if both produce the same air speed. any with high cfm and good leds as well?will get 2 units of XLF and others hav to look at other brandsGiven CFM specifications are valid only when the pressure on both sides of the fan is equal; that is, when the fan is operating in free space. Under real-life conditions, when the fan is installed in a device, the specified CFM rating of the fan will not be reached; here, it depends on installation and on the overall design of the cooling system. Larger fans provide a better ratio between air throughput and noise. To achieve the best compromise between cooling performance and noise, chose the largest fan possible. SOS: http://www.heatsink-guide.com/ hmm..try nucleartec led fan ... but their cfm is not so high la.... suitable for modders... the led is doing fine for me around 1 year before i sold it |
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Feb 18 2009, 12:06 AM
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Senior Member
2,547 posts Joined: Oct 2007 |
QUOTE(deejay220989 @ Feb 17 2009, 08:50 PM) Thanks for your explaination! i just copy bulat bulat from the site actually Anyone has any good high CFM fans to recommend? Is the 'Cooler Master 90 CFM High Performance Silent LED Fan' good? I see that alot of ppl like Scythe's fans..but they are expensive -.- btw, the cm led fan seems to be only running at 60cfm and it shud be quite silent.... from my own experience and feedback i heard, cm led normally doesnt last u long... around 3 months i guess lol.... normally one of the led will die lol... high cfm fans wud be something like fm123, panaflo, delta, nmb and scythe..... but those fans are extremely noisy QUOTE(ZeneticX @ Feb 17 2009, 10:26 PM) any with high cfm and good leds as well?will get 2 units of XLF and others hav to look at other brands erm....if u want led and yet give u silence with mid cfm... then, xlf will be the choice...i am happy with it so far.... the led fan has been used for around 1 year ++ already till know and its still working.... but i got a report that the led dies too... but so far only got one case that i hear.... maybe u can try vizo led fan also... its around 70cfm... but its not as silent as the xlf tho.... so far i cant recall any higher cfm led fan already |
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Feb 18 2009, 12:24 AM
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All Stars
12,413 posts Joined: Jan 2008 From: KL - Cardiff - Subang - Sydney |
what about 140mm led uv led/neon fans?
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