120 mm fan on processor?

[Killeruk]

I was wondering if you can buy a 120mm fan adaptor to put on your processor?

Thanks

 

[xXgambitXx]

you can, they're pretty common at any case modding site. also i think NewEgg has some.
however, you're not going to notice much of a difference to make it worthwhile. adaptors have a bad reputation for restricting airflow.

 

[Shimmishim]

yeah, i herad that as welll AFTER i ordered my 80 to 60 mm adapter...

i'd just stick with a nice hs taht can support a 80mm fan ... i.e. the slk 800 / 900

 

[Ilmater]

Just for comparison's sake, I am putting a 92mm fan on top of my Swiftech 462+, but I'm not using an adapter. I just bent the fins on the sides and used some spacers. The fan now sits just above the HS without any vibration at all. Plus, because of where the NB of the Epox 8RDA+ is, it'll even cool it a little. I'm sure it won't make as much difference as the CFMs themselves would imply, but it will make SOME difference over a comparable 80mm fan.

Just some food for thought.

 

[Muzzy]

I want to put a 92 mm on my Thermalright AX-478. Mainly to get the same cooling, but less noise.

 

[godmare]

Well this won't restrict airflow, when it becomes available. It doesn't accept a 120mm fan directly, but this is a major improvement over 'normal' reduction adapter

 

[godmare]

Zalman official site, click on the pic that says "Bracket FB123" at the top.

EDIT: argh, Zalman's site sucks.. go to the 'products' portion of their site first, then that gif pops up...

 

[Eug]

While 60 --> 80 mm may be an improvement, people have said that going from 80 --> 92 yields only marginal differences in temps at best, even with undervolted fans (assuming the heatsink is a good one).

Thus I don't see the point of 120 mm on a processor.

 

[godmare]

Originally posted by: Eug
While 60 --> 80 mm may be an improvement, people have said that going from 80 --> 92 yields only marginal differences in temps at best, even with undervolted fans (assuming the heatsink is a good one).

Thus I don't see the point of 120 mm on a processor.

Because the difference in airflow between an 80mm and 92mm fan is usually only marginal, while the difference between an 80mm or 92mm and a 120mm fan is much more pronounced.
The best example (and the most easily found specs) for this is the Vantec Stealth series :
80mm Stealth: 21dB, 27cfm;
92mm Stealth: 20dB, 28cfm;
120mm Stealth: 28dB, 53cfm.

 

[Muzzy]

Originally posted by: Eug
While 60 --> 80 mm may be an improvement, people have said that going from 80 --> 92 yields only marginal differences in temps at best, even with undervolted fans (assuming the heatsink is a good one).

Thus I don't see the point of 120 mm on a processor.

I have also read that too. The reason that I would still want to go to 92mm is to get the same cooling, but with less noise. Must be getting old, can't stand loud fan anymore. Don't know how those people with the Delta screamer fan stand it

 

[Demogorgo]

Before you do this, make absolutely sure that there is enough room in your case for the big 120mm fan. I was going to put a 120mm fan on my 80mm heatsink with the help of an adapter, but then I saw that my motherboard places the CPU at the top-left corner of the motherboard and I was barely able to fit the 80mm heatsink due to my mid-tower PC case that places the PSU right above the CPU. I would only recommend this if you have a full-tower case.

 

[farmercal]

The Zalman ZM-F2 90mm produces 38 CFM @ 20 db with the resistor connected and only spins at 16000 RPMs. That's a lot of cool with a little noise and it is a 92mm fan.

 

[OulOat]

Originally posted by: farmercal
The Zalman ZM-F2 90mm produces 38 CFM @ 20 db with the resistor connected and only spins at 16000 RPMs. That's a lot of cool with a little noise and it is a 92mm fan.

Wow, finger chopping fun!

 

[Muzzy]

It also make magarita!!!

 

[Eug]

Originally posted by: godmare

Originally posted by: Eug
While 60 --> 80 mm may be an improvement, people have said that going from 80 --> 92 yields only marginal differences in temps at best, even with undervolted fans (assuming the heatsink is a good one).

Thus I don't see the point of 120 mm on a processor.

Because the difference in airflow between an 80mm and 92mm fan is usually only marginal, while the difference between an 80mm or 92mm and a 120mm fan is much more pronounced.
The best example (and the most easily found specs) for this is the Vantec Stealth series :
80mm Stealth: 21dB, 27cfm;
92mm Stealth: 20dB, 28cfm;
120mm Stealth: 28dB, 53cfm.

Yeah, but it doesn't do much good swirling heat around the case.

 

[godmare]

Originally posted by: Eug

Originally posted by: godmare

Originally posted by: Eug
While 60 --> 80 mm may be an improvement, people have said that going from 80 --> 92 yields only marginal differences in temps at best, even with undervolted fans (assuming the heatsink is a good one).

Thus I don't see the point of 120 mm on a processor.

Because the difference in airflow between an 80mm and 92mm fan is usually only marginal, while the difference between an 80mm or 92mm and a 120mm fan is much more pronounced.
The best example (and the most easily found specs) for this is the Vantec Stealth series :
80mm Stealth: 21dB, 27cfm;
92mm Stealth: 20dB, 28cfm;
120mm Stealth: 28dB, 53cfm.

Yeah, but it doesn't do much good swirling heat around the case.

The 120mm Stealth cited above pushes 53cfm, as noted. That's about as much as Sunon's 'high output' 80mm fan. It's also about the max output of both Y.S. Tech's popular 80mm adjustable fan, as wwell as Thermaltake's original Smart Case fan, while being less (though amply enough, if setup properly) than Thermaltake's Smart Case Fan 2 and the Vantec Tornado of lore.
A loud and powerful 120mm fan will provide maximum airflow to the most crucial and easily heated portion of your computer, and a quiet 120mm with nominal airflow will provide ample and comparable airflow and cooling while being much quieter.
As for heat swirling around in your case, it's a lot better than heat building up in two or three spots, and really not relevant on top of that due to case fans providing cool air intake and hot air exhaust.

Personally, I wouldn't bother with a 120mm fan in my case, as a quality heatsink (eg Thermalright, alpha, etc) will provide excellent performance with low airflow 80mm fans, but that wasn't exactly the thread topic.

 

[farmercal]

Oops! I meant 1600 RPMs. I guess I have fat finger-itis.