Alpenföhn K2 Mount Doom

mattacuk · 13 Jun 2013 at 17:39

I just wanted to recommend this cooling solution. It is by far and away the highest quality component I have bought for my computer in years.

I bought it to replace my aging Corsair H50, which despite best efforts to get it working efficiently just didn't cut it temp wise. The Mount Doom on the other hand, whilst probably as big as a small dog keeps my i5 750 (3.5Ghz) idling at 29 - 33 degrees depending on how hot the day is.

I am going to bump my CPU frequency to around 4Ghz next week so I will let you know how I get on with temps!

shadow_boxer · 13 Jun 2013 at 17:42

Totally agree it's a pretty impressive cooler. Shouldn't have any trouble cooling your cpu at 4GHz!

Doomedspeed · 13 Jun 2013 at 18:00

Well said,

I was in the same situation when upgraded my H50 to the Noctua D14.

shadow_boxer · 13 Jun 2013 at 18:03

Did a similar thing but from the Antec Kuhler 620 to a Thermalright Silver Arrow.

setter · 13 Jun 2013 at 18:04

It's a cracking cooler, kept my i7 920 @4.2ghz at 69c max in intel burn test, 75c max on my old 3570k @4.5ghz. Now plonked on top of a 3770k but still got to oc it.

BinnsY · 13 Jun 2013 at 18:15

I've been very impressed with it as well. Keeps my 4.2Ghz 3570k just below 30c when idling and never above 70 even when using things like intel burn test. Standard load from things like gaming it never goes much above 50c. All whilst being essentially inaudible.

setter · 13 Jun 2013 at 18:24

I swapped out the stock fans a while back for x2 akasa piranhas, theese work great on it.

mattacuk · 13 Jun 2013 at 18:47

Here is mine in the case:

What sort of voltage should I be aiming for @ 3.8 to 4ghz guys? I asked in another forum but couldn't get a straight answer

setter · 13 Jun 2013 at 18:57

Couldnt say tbh regarding vcore as it will vary so much from chip to chip, but i think mattacuk that your middle fan is on the wrong way round. The blade side of the fan should be facing the front of the case, just as how my front fan appears in the photo i posted above.

mattacuk · 13 Jun 2013 at 19:04

setter said:
Couldnt say tbh regarding vcore as it will vary so much from chip to chip, but i think mattacuk that your middle fan is on the wrong way round. The blade side of the fan should be facing the front of the case, just as how my front fan appears in the photo i posted above.

Oh really? I thought I was supposed to vent everything out the back

Ok then, with regards to Vcore, let me re-phrase, what is the average range?

setter · 13 Jun 2013 at 19:12

If you had your 120mm fan mounted on the front like mine, the middle 140 should also have its blade side the same way. This way the front fan is pushing through the first block of the heatsink, the middle fan then pulls this air before pushing it through the rear part of the cooler where it is then extracted via the case fan. Some fans have arrows that show rotation and airflow direction, unfortunately the alpenfohns dont.

Regards vcore, id try at 1.300 and work from there, may need more, may do it on less.

mattacuk · 13 Jun 2013 at 19:29

Ohhhh, I get you...looks like I got my fan sides mixed up lol! I thought yours was sucking air in rather than blowing out lol

setter · 13 Jun 2013 at 19:33

No probs mate, if you set your 120 as mine is next to the ram, just imagine if i lifted the middle fan clear of the heatsink, it would also be showing the blade side, the frame that supports the fan hub would be rearwards.

mattacuk · 13 Jun 2013 at 19:42

Ok thanks, looks like I have my ceiling fans the wrong way too, I thought I was blowing out the case LOL

lettuce · 14 Jun 2013 at 09:57

I just got one of these for my new Haswell build and seems to be performing very well, I previously had a Corsair H50 too. One thing I will say about the Mount Doom though is the instructions are utter garbage, not very well explained at all.

What fan config are people using?, I have both fans blowing out the back of the case with the smallest of the fans on the side nearest the front of the case. Any one using a different set of fans than stock?

illuz · 14 Jun 2013 at 10:01

That's how you should have them lettuce mate, it's a cracking cooler. I parted with mine and went custom loop, but it served me well. Hugeee too!

Helios1234 · 14 Jun 2013 at 17:15

Good to hear

inogen · 14 Jun 2013 at 17:27

How are these with high ram heatsinks?

I notice there's an NHD14 revision coming out this year that allows for higher heatsinks.

Helios1234 · 14 Jun 2013 at 18:56

inogen said:
How are these with high ram heatsinks?

I notice there's an NHD14 revision coming out this year that allows for higher heatsinks.

Supports modules like G.Skill's RipJaws but not Corsair Vengeance. The problem with the Noctua is that although the heatsink caters to these larger modules, the fans don't.

Any large cooler with 140mm fans will have problems in these situations and you can't move them up by much to give you more clearance beneath them.

setter · 14 Jun 2013 at 22:40

Tbh guys, just avoid ram with high heatfins.pipes etc. It's a gimmick. I have ocz reapers on an x58 rig, theyre a hindrance due to their size. Which offer no benefit whatsoever.