CPU fan

kaju · Post by **kaju** » Mon Mar 31, 2008 10:31 am

Neutron wrote:
If it happens to not fit because of the MCH fins, you can put a smaller one, because the big fan will blow on it.

You mean a smaller heat sink for the MCH?

Neutron · Post by **Neutron** » Mon Mar 31, 2008 10:45 am

kaju wrote:
Neutron wrote:
If it happens to not fit because of the MCH fins, you can put a smaller one, because the big fan will blow on it.
You mean a smaller heat sink for the MCH?

yes

or at least a lower profile one.

kaju · Post by **kaju** » Mon Mar 31, 2008 11:04 am

Ok, thanx again

Cheers
-k

bill3107 · Post by **bill3107** » Tue Apr 01, 2008 5:38 am

I have a big Noctua cooler (with 120 mm fan) : rock solid mounting system and very very quiet ... Their support is also great and friendly...

Jo

kaju · Post by **kaju** » Tue Apr 01, 2008 7:42 am

Thanks for the tip Bill.

Yesterday I ordered from our local online retailers and this time they acted very quickly.
I expect to get the items in 2-4 days.

So for me at least the choice of processor cooler is made now: Scythe Andy Samurai Master (hah what a name!).
I have also a Nexus Case Fan 120mm Ultra Silent PWM just to have something to experiment with.

Next step will be the installation. It's interesting to see if Andy feels at home with my MoBo

kaju · Post by **kaju** » Tue Apr 01, 2008 1:18 pm

I will.

Cheers

-k

bill3107 · Post by **bill3107** » Wed Apr 02, 2008 1:12 am

IFor quiteness (I mean 100%) I am also very happy with my Gigabyte 8600GT (lattest model, not the 2 slots oldest model).... Perfect too ! And I have 3x120 mm additional Noctua fans (one for my Raptor

and the others for the case). Almost no noise from my racked PC !!!!

Have fun !

kaju · Post by **kaju** » Fri Apr 04, 2008 1:05 am

Yesterday I got the Scythe Andy cooler.
It seems to fit, actually two orientations are possible. Maybe the best way is to have it with pipes facing towards the back of the MoBo.
I don't think there'll be any problems getting it into its place. I'll be away for a week so the real installation job will be done after that.

Cheers,
-k

kaju · Post by **kaju** » Fri Apr 04, 2008 3:44 am

Yeah that's right, but in this case there's actually too little room for the pipes in the side plane.
As Neutron said already "the "andy" is a down pointing one". The fan is located on the top.

Cochise · Post by **Cochise** » Wed Apr 16, 2008 5:23 pm

I've found opinions and links in this thread as an interesting starting point.
The subject becoming very articulated nowadays, I can see.
I guess the 45nm technology could bring some more change in the cooler area.

Further searching the web I've found this Scythe Shuriken, and I like it since its light weight and limited dimensions.

Going by what I've read on this review, It looks being pretty silent at low temperatures
(noise measurements by this site are taken in a soundproof enclosure @ 12'', NOT @ 1m as usual. An indicative value @ 1m can be obtained using dB2=dB1-20log(d2/d1), being d2=100 and d1=30.48 )

Considering then the heat dissipation of the E8000 series CPUs, I'm wondering if the Shuriken can be a good choice looking for a very, very silent machine based on a Wolfdale Core 2 Duo E8200.

What's your opinion?

Post by **garyb** » Wed Apr 16, 2008 5:33 pm

i really dislike those big coolers.

if you're overclocking, they're surely a good idea, but for the rest of us...the main thing is that there's a lot of torque on the mounts, and the motherboard, the thing has a very small footprint and a huge, heavy head. it's very easy for one to become dislodged and the cpu and/or motherboard damaged. granted, in a computer that never gets bumped or moved, there's probably no issue there but....the stock cooler has never failed on me in more than 30 installations. the current one is quiet and more than sufficient.....

i'll STFU now....

Cochise · Post by **Cochise** » Wed Apr 16, 2008 5:56 pm

I've a Zalman CNPS 7700 Cu at now, since the stock fan of the Prescott was quite noisy. But the 7700 is large for my case, it practically gets in contact with the PSU fan grid which I had to remove.
Apart from this I wish to avoid the installation of 1Kg of copper on the new MoBo, although I never moved my machine till now.

The Shuriken is lighter than the stock cooler (355g) and just a bit larger.
It has PWM speed regulation like the stock one.

Does the stock Core 2 Duo fan really rotate at 1500 RPM? (max?) http://www.frostytech.com/articleview.c ... cleID=2132
It looks exactly alike the old version going by the pictures.
Different inclination of the blades or just different heat dissipation of the CPUs?

Cochise · Post by **Cochise** » Thu Apr 17, 2008 7:15 am

This table with data extracted from FrostyTech.com reports values for Scythe Shuriken, Zalman CNPS 7700 Cu, and Intel stock Pentium D and Core 2 Duo coolers.

In my system I have a rise of 22° - 23° C using the Zalman CNPS 7700 Cu with a Prescott 3Ghz (800 Mhz FSB) in idle state, and 44° - 45° C full load @ 20° C ambient temperature, but there's a 25 cm fan on the case side blowing toward the CPU cooler (at now it's manually speed regulated, but I'm experimenting with a circuit using a thermistor in these days)

Cochise · Post by **Cochise** » Thu Apr 17, 2008 7:38 am

garyb wrote:t.....i'll STFU now....

Why that?

I installed the stock 775 fan with its clips just 1 time in the past; and the machine had thermal lock at the first startup. This because, following the instruction in the Asus manual, I installed the cooler with the MoBo already mounted in the case.
The pressure needed to lock the cooler was bending the board in a way I considered worrying, so it ended with one of the four feet inadvertently bad locked...
Then a friend of mine came to fix it (removing the board from the case).

Now, the Shuriken has clips like the stock one... I'm somehow worried for that...

Cochise · Post by **Cochise** » Thu Apr 17, 2008 8:47 am

stardust wrote:Wow I wouldnt accept any noise level beyond 20dBA and here the go 50+

Cochise wrote: (noise measurements by this site are taken in a soundproof enclosure @ 12'', NOT @ 1m as usual. An indicative value @ 1m can be obtained using dB2=dB1-20log(d2/d1), being d2=100 and d1=30.48 )

http://www.frostytech.com/testmethod_mk2.cfm

50dB @30.48 cm should be below 30dB @ 1m
Still high but...

I forgot to state the Zalman in my machine is operating at min speed (980 RPM)

The thing puzzling me is: they state 24.7° C above ambient. At ambient 20° it should be 44.7°. I've up to 65° and I'm sure I'm quite below 85W

ADDED:

Probably their 'low' ain't the minimum speed...

Cochise · Post by **Cochise** » Thu Apr 17, 2008 10:55 am

The aluminium body of the Wolfdale stock cooler looks being quite a half than the one in the previous version.

The fan run with 200 mA v/s the 420 mA of the Prescott version.

Cochise · Post by **Cochise** » Thu Apr 17, 2008 11:35 am

I could try the Zalman 7700 without fan using a Wolfdale;
or try to replace the Zalman fan with a lower speed one...
but it's heavy... still not so cantilevering like most others, but heavy...

Cochise · Post by **Cochise** » Thu Apr 17, 2008 11:55 am

No OC.
Just need an 'as silent as possible' machine.
Staying in a certain budget, of course.

If the heat is low and the MoBo can drive the Shuriken in the right way, making it turns at low speeds, it can be a very good solution, considering all the faces.

stardust wrote:... A 65W CPU should not need so noisy cooling

This tables from http://www.xbitlabs.com/articles/cpu/di ... fdale.html
show a consumption lower than the official specs.

ADDED: Temperature values using a Zalman CNPS9700 LED

FrancisHarmany · Post by **FrancisHarmany** » Thu Apr 17, 2008 1:11 pm

I prefer CPU Groupies......

Cochise · Post by **Cochise** » Thu Apr 17, 2008 1:42 pm

@ FrancisHarmany
Why not supporters?

@ Stardust:
You have a quite high case, I guess.
For sure 17dB is the lower noise standard at today, but the Coolscraper is 153mm large. I could only mount it blowing hot toward the PSU fan, or, maybe in the opposite direction, but it should stay stealing the air to the PSU fan...
Moreover it's just 213 g lighter than my old Zalman 7700.

ADDED: Sorry 153 mm is the height. Maybe I could mount it.... but I've different air flows in my case; I need kind of fan parallel to the CPU plane...