Best 120x120x25mm fan that can deliver 70 CFM???

[SUBMAN1]

Update: Still messing with my new sys. The sys as a whole has amazing frame rates in games, but the PSU is a little noisier than I originally anticipated. I am at the point where I think I am going to pull it apart and mod it.

Researching it, there is an ADDA fan in this thing that puts out 85 CFM @ 39.1 dba @ max speed of 2200 RPM. This is a little too loud for my blood, even though it isn't terrible. The box on the Silverstone states 24 dba minimum but at lowest speed it is more like 30 dba before ramping up to the 39.1 dba at the max speed of the fan (So where did they get the 24 dba number from? Advertising gone wrong again)

So the question is, who makes a 120mm x 120mm x 25 mm fan that delivers about 67-70 CFM (I want to stay within 80% of the CFM of the original ADDA that shipped in the Silverstone PSU) and is relatively quiet? I anticipate this will be somewhere around 1600 to 1800 RPM and the max db output should be around 30 dba. This also means that the normal op of the PSU should have a db output of somewhere around the high teens to mid 20's.

I've found a company called Globe that makes one in the range I am looking for, but I can't find where they are sold!!! Ahhhhh! Anyway, any help you guys can offer would be appreciated.

Thanks,

-S

[jumpy]

I have a couple of DELTA 120 x 120 x 38mm fans going spare
from the blurb:

Welcome to 190 cubic feet of wholesome goodness. It sure "feels" like it too. The FFB1212EHE has "Server Use Only" written all over it. If you do decide to strap this jet engine in a desktop PC, be sure to apply a second sheet of Dynomat to save your ears.

Specifications: 120x120x38mm, -->190.00<-- CFM @ 4000 RPM, 59.0 dBA, 24.00 watts, 2.00 amps, 12v DC, 3+4 pin Molex connectors.

Do not use the Sidewinder Rheostat with this fan. Also note the power requirements of the FFB1212EHE, there is a 3.00 amp startup requirement too.

Go here there's loads of fans/water cooling/heatsinks etc to choose from. Pretty decent kit too, if a little to the extreme end of the scale at times hehe ...190cfm lmao what was I thinking?!


ps. if you get anything like one of those 190cfm monsters, keep yer piggies well away when it's spinning, else it'll have 'em off!

[SUBMAN1]

Originally Posted by jumpy

I have a couple of DELTA 120 x 120 x 38mm fans going spare
from the blurb:

Go here there's loads of fans/water cooling/heatsinks etc to choose from. Pretty decent kit too, if a little to the extreme end of the scale at times hehe ...190cfm lmao what was I thinking?!


ps. if you get anything like one of those 190cfm monsters, keep yer piggies well away when it's spinning, else it'll have 'em off!

What were you thinking? :rotfl: Those Deltas move air but wow! 59 dba!

My last system you could not hear unless you put your ear right next to it, but the new one is just noticable is all. I would like to make a silent system out of it but I have already given in to the fact that my power draw is so high with dual core CPU and x1900 XTX (soon to be 2 XTX's!) that the best I can hope for is relatively quiet.

Those Delta's though - WHIIIRRRRRRRRRRR! That has got to drive you nuts!

-S

[Skybird]

In the 120 departement, the item by Rheinmetall does a significant job in silencing complaints about too hot temperatures.

[SUBMAN1]

Originally Posted by Skybird

In the 120 departement, the item by Rheinmetall does a significant job in silencing complaints about too hot temperatures.

Where I am going is near silent and still able to move some CFM.

I can't find these guys that you mention. Do you have a link?

-S

[Skybird]

Sorry, I was just pulling your leg. Try here:

http://www.fprado.com/armorsite/leo2.htm
http://www.military.com/soldiertech/...rd2A6,,00.html

[SUBMAN1]

Originally Posted by Skybird

Sorry, I was just pulling your leg. Try here:

http://www.fprado.com/armorsite/leo2.htm
http://www.military.com/soldiertech/...rd2A6,,00.html

Hahahaha!

Just looking at that Leapard however it would seem the designers made it capable of dishing it out but surely not taking it. That thing has straight sides! No way to deflect an incoming round properly, even with reactive armor!

The Leopard 2 is better and the designers took those ideas into account, but they screwed up again and made what looks like shot traps! Nice tank, but vulnerable to return fire is all I have to say.

-S

[Skybird]

I severly doubt that dedicated anti-tank-rounds, especially SABOT, do "bounce off". It's more likely that the armour is meant to be penetrated, and the shot then get stuck. I once wrongly assumed myself, looking at the wedge of the turret's front of the new Leo2-A5 and A6 series, that the downside of the wedge almost would funnel any incoming frontal shot towards the ring between turret and hull where tanks are said to be vulnerable. But insiders and tankers told me that such ammunition is very unlikely just to bounce off, no matter at what angle it would hit the armor.

Germans know a thing or two about constructing fully competitive tanks I would think the engineers have their reasons why they built the modern Leos the way they are.
I should know. I sim with Steel Beasts Pro!

[SUBMAN1]

Originally Posted by Skybird

I severly doubt that dedicated anti-tank-rounds, especially SABOT, do "bounce off". It's more likely that the armour is meant to be penetrated, and the shot then get stuck. I once wrongly assumed myself, looking at the wedge of the turret's front of the new Leo2-A5 and A6 series, that the downside of the wedge almost would funnel any incoming frontal shot towards the ring between turret and hull where tanks are said to be vulnerable. But insiders and tankers told me that such ammunition is very unlikely just to bounce off, no matter at what angle it would hit the armor.

Germans know a thing or two about constructing fully competitive tanks I would think the engineers have their reasons why they built the modern Leos the way they are.
I should know. I sim with Steel Beasts Pro!

I don't agree with that assesment. Point blank maybe not, but at range, some angles with definitely help you. The Germans knew this best in WWII by the way!

Your simple answer to this question to show that angles help you is to simply look at the advances in design between a Leopard 1 and 2. The 2 has big improvements in angles for the very reason of shot deflection and it is very apparent across the entire tank - something sorely lacking on the 1st rev. Maybe they figure that the size of the tank made it a non factor if it got hit? Dunno.

Another example - take a T-90 or American Abrahms. They didn't make those angles for good looks!

-S

[TteFAboB]

I was going to make a joke, asking if that's the company that made Hitler's suicide pistol, since they are specialized in silencing complaints about too hot temperatures.

But, now the timing is gone.

[TteFAboB]

Good, an opportunity for another joke, this time with timing:

And here I was, thinking you typed that hole thing in one go, with the compulsion of one who seeks to share his knowledge, but at the same time finds it all too obvious and boring to polish and make the message appealing to the eye, or ears.