Interetsing - 80mm to 120mm adpator

CoolColJ · Post by **CoolColJ** » Sun Sep 21, 2003 5:07 pm

http://www.pccasegear.com/prod561.htm

Would be interesting to try one of these on a SLK-900 for max cooling with a 120mm fan

The small funnel would increase air velocity

now if only they made a 40mmm to 80mm adaptor with a funnel.
The funnel would increase air velocity, and the 80mm runs quieter than a 40mm for a videocard

herosformula · Post by **herosformula** » Sun Sep 21, 2003 5:12 pm

I use a 120mm to 80mm adapter on the back of my LianLi case.

CoolColJ · Post by **CoolColJ** » Sun Sep 21, 2003 5:13 pm

How did it work out? quieter and more air flow?

herosformula · Post by **herosformula** » Sun Sep 21, 2003 5:20 pm

There is no comparison between the pressure and airflow of a 120mm fan versus an 80mm.

al bundy · Post by **al bundy** » Sun Sep 21, 2003 5:53 pm

CoolColJ wrote:http://www.pccasegear.com/prod561.htm

Would be interesting to try one of these on a SLK-900 for max cooling with a 120mm fan ...

How would you attach it to the SLK-900?

herosformula · Post by **herosformula** » Sun Sep 21, 2003 6:29 pm

The adapter has 4 holes on the 80mm side, so you attach it similar to a fan.

Zhentar · Post by **Zhentar** » Sun Sep 21, 2003 8:09 pm

but the holes are on the inside, won't work with the clips. So just use Duct tape for that professional look. In fact, skip buying the duct altogether and use cardboard and duct tape in the first place. No better way to get that beautiful look.

Pjotor · Post by **Pjotor** » Mon Sep 22, 2003 1:47 am

My two cents: If you use a fan adapter -- make sure that you mount the fan to suck instead of blow. Otherwise, the funnel shape will decrease airflow too much for the adapter to do the job right.

I use a 80 -> 120 mm adaptor on my Alpha PAL8045. With a Papst 120 mm at 5 V i achieve slightly lower temperatures than when using an 80 mm Papst at 12 V, and a *lot* less noise to boot.

CoolColJ · Post by **CoolColJ** » Mon Sep 22, 2003 1:53 am

yes, but a 120mm blowing out through the adaptor would work better for say a heatsink, because the funnel would increase air velocity.

The same principal is seen in air intakes for cars for example

Pjotor · Post by **Pjotor** » Mon Sep 22, 2003 3:41 am

CoolColJ: Yes, blowing through an adapter will work better than using a smaller fan, but requires a heatsink which works well with low airflow fans. Since larger fans usually work with lower speeds, the increased resistance will hamper the performance compared to a fan sucking through the same adapter.

OTOH, a sucking configuration works best with a heatsink made to perform with a sucking fan, and vice versa with blowing fans. I use a good heatsink, requiring less airflow, and mainly use a rheostat-coupled exhaust fan to adjust the airflow to the operating conditions. At idle or light work, all fans (120 mm on PAL8045, 120 mm exhaust, 80 mm in power supply unit) are set to 5 V or just above. The case is a Compucase 6A-21 -- lovely case with the two 120 mm fan mounts!

Jan Kivar · Post by **Jan Kivar** » Mon Sep 22, 2003 4:40 am

al bundy wrote:How would you attach it to the SLK-900?

With style (a la Halcyon): Superglue.

Jan

Tobias · Post by **Tobias** » Mon Sep 22, 2003 6:16 am

Hey Pjotor, I have the 6A21 as well, but I have a problem with it, which I do not know is a designflaw or not. My 7200RPM HD:s tend to be VERY loud in my case. I guess they are resonating with the rest of the case, anything you have experienced? or are you using only 5400RPM discs?

al bundy · Post by **al bundy** » Mon Sep 22, 2003 11:00 am

Jan Kivar wrote:
al bundy wrote:How would you attach it to the SLK-900?
With style (a la Halcyon): Superglue.

Jan

Hey, that's interesting! I hadn't considered using superglue for that task...

Interetsing - 80mm to 120mm adpator

Interetsing - 80mm to 120mm adpator

Re: Interetsing - 80mm to 120mm adpator

Re: Interetsing - 80mm to 120mm adpator

Re: Interetsing - 80mm to 120mm adpator