It's possible to use 120mm fan on SLK-9xx heatsink series!!!

[MegaWorks]

I check Thermalright site and it said that it's possible, ok but how do install it and which 120mm fan
the x38mm or x25mm. I'm sick of these Tornado's, I need more CFM but with less noise

well here's the link

what do you guys think?

------------------------------------------------------
AMD Athlon XP T-Bred B DLT3C 1700+ @ 2.3GHZ (1.775v) 400FSB = 3200+
Abit NF7-S V.2 (nForce2-U400)
Corsair TwinX XMS 3200LL 512MB @ 2-3-2-6 (2.6v)
Sapphire Radeon 9500 Pro 128MB
Antec TrueBlue 480W
Thermalright SLK-947U with 92mm Vantec Tornado @2800RPM
Antec PlusView 1000AMG
Cambridge SoundWorks MegaWorks THX 550 5.1

 

[Dman877]

If a 92mm tornado isn't enough airflow for ya, a 120mm won't help either. Go water cooling at that point.

 

[mechBgon]

Ask yourself

~ seriously, am I going to notice a loss of ~150MHz on my overclock, if I switch to a 92mm Panaflo L1A and have to slow it down a little?

My guess is "not without resorting to benchmarking." Also remember that it isn't the total airflow that counts, it's the airflow that goes through the heatsink. Isn't it now. A 120mm fan might help out with your northbridge cooling, I guess, due to the blowby.

 

[Peter D]

Heh, of course it's possible, just put it on a 45 degree angle to the heatsink. I did the same with an old SLK-800A and a 92mm M1A The only thing, is there's a huge deadzone and you might bend the clips..

 

[Jaxidian]

Here's an option (quite good one, I must say ) if you have somewhere on your case to mount the 120mm fan:

Take one of these and find some way to mount it to the SLK9xx (it's not made for this but I don't see this being too difficult).

Now take one of these and mount at the other end of the duct (if nothing else, a lot of duct tape will do this I'm sure). Attach that to your 120mm fan and then attach your 120mm fan to your case sucking in nice, cool, outside air.

A benefit to this is that you totally eliminate dead spots plus you're blowing cooler air (from outside not warm air inside your case) on your cpu. A downfall is that there is a bit of air resistance inside the duct. Another potential downfall is that if you don't mount the duct to the heat sink well enough and it slips off, well, that's a bad thing. However, if that's the case, luckily your system should lock up before it gets damaged from the heat since it still has the heatsink attached.


Just a thought that will do what you want. And now that I've given you this thought, I'm considering it myself!

I'd also suggest making sure you have an outtake fan near your CPU if you do this.

 

[Nickel020]

120mm fans are actually really bad for CPU cooling due to their larger dead zone. People have tried using 120mm fans using Zalman fan brackets or 80 to 120mm adapters and pretty much everyone has come to the conclusion that the performance/noise ratio of 80mm or 92mm fans when used to cool a CPU is much better.
The problem ist that the hottest spot of the heatsink is at its centre and the large dead zone cools this spot a lot worse than a smaller fan.
Just get a quieter fan like a Panaflo 92mm L1-BX (same as L1A but with rpm monitoring). You probably won't notice it when you lower your CPU speed anyway, but you'll certainly notice that you are not using a tornado anymore.

 

[MegaWorks]

Originally posted by: Jaxidian
Here's an option (quite good one, I must say ) if you have somewhere on your case to mount the 120mm fan:

Take one of these and find some way to mount it to the SLK9xx (it's not made for this but I don't see this being too difficult).

Now take one of these and mount at the other end of the duct (if nothing else, a lot of duct tape will do this I'm sure). Attach that to your 120mm fan and then attach your 120mm fan to your case sucking in nice, cool, outside air.

A benefit to this is that you totally eliminate dead spots plus you're blowing cooler air (from outside not warm air inside your case) on your cpu. A downfall is that there is a bit of air resistance inside the duct. Another potential downfall is that if you don't mount the duct to the heat sink well enough and it slips off, well, that's a bad thing. However, if that's the case, luckily your system should lock up before it gets damaged from the heat since it still has the heatsink attached.


Just a thought that will do what you want. And now that I've given you this thought, I'm considering it myself!

I'd also suggest making sure you have an outtake fan near your CPU if you do this.

nice!

 

[0roo0roo]

better to run using a thermatake duct mod.. curved duct eliminates dead spot. then run two 92mm fans in series with a cut out fan frame for a sealed gap between to make sure the air is forced through the heatsink and duct optimally.

 

[magratton]

As the first reply said, is the Panaflo a drop? I did not lose any MHz and used an L1M instead of the L1A. Pushes a bit more CFM without raising the dba too much.

 

[edmundoab]

For the heck of it, I changed my 80mm fan to a 92mm fan, but felt no difference at all
LOL.

just a waste of money to even go 120mm,
though it feels like a big fan in your case. Physchologically makes you feel that is cooler. LOL

 

[MegaWorks]

opps

 

[Jaxidian]

Originally posted by: 0roo0roo
better to run using a thermatake duct mod.. curved duct eliminates dead spot. then run two 92mm fans in series with a cut out fan frame for a sealed gap between to make sure the air is forced through the heatsink and duct optimally.

I disagree. I really don't like the TT duct mods. They make 75% of the air your fan blows hit less than 50% of the heat sink. Sure, there's no dead spot in the center but you can consider 50% of your heat sink to be under a weak spot. I'd prefer keeping the dead spot over this.