Orochi Compatibility List

[scyth]

Apparently there is no any heatsink made for fanless use...
But if u put a blow-in fan in the HD's position (straight to mugen) then its the same and temperature goes down.

Cool & quiet also effect cpu's fan speed, so I wonder if theres any confict with pwm.

I asked u about a particular fan (S-FLEX S-FDB), is it good to use it as case fan? Is it better for the exhaust or the blow-in position? Or both?

Hey, how can I make Mugen2 have 0 or 200 rpm? Τhe minimum I saw so far is 1030...
SpeedFan doesn't co-operate with my mobo.

[sumo]

Hi Scyth,

Apparently there are Heatsinks made for Fanless use like Orochi, Ninja 1/2 and the good old NCU2005. All this Heatsinks are designed to use in fanless mode. But every heatsink, especially in fanless mode is restricted by the CPUs TDP. So normaly 65W CPUs can cooled fanless. All above is more tricky. But we show what is possible on the cebit, where we cool a Phenom 2 940 BE fanless with our Orochi.

Every fan in the case which improves the airflow will have effect the CPU temps in this way.

You can use the S-Flex in booth positions. it's only a quastion of "i want more airflow" or "i want more silence". If you want Silence: S-Flex. If you want Airflow: Slip Stream.

The RPMs depends on your PWM Settings in your Bios, so if you set these right it possible to reach 200 rpm or 0 rpm. In this case i can say that C&Q have no direct effect to the fan speed. C&Q drop down the frequency/voltage of your CPU, this effects lower temps, pwm is controlled by temperature, in the end: lower temperature effects in lower rpms.

cheers Chris

[scyth]

Hi there,

So there r fanless heatsinks? Thats was what I was looking for but never found. I m talking for a Phenom II 720. Α friend from here told me that Οrochi cannot work fanless-I guess this is what u mean with "orichi"

What I mostly want of course is silence. The question was, are there special fan types for particular positions?(exhaust, blow-in) Or any fan can be used in any position?


Now, in my bios there is the option Smart Q-FAN Function with 3 choises:

1. Fan Auto Mode Start Voltage [4-6V]
2. Fan Auto Mode Start Speed Temp [25-40oC]
3. Fan Auto Mode Full Speed Temp [67-75o]

I didnt understand the No1.
No2 and No3 are about PWM?

IF I put 35oC in No2, this means that until temperature reach 35oC the fan won't move?...

[sumo]

Hi,

if the orochi can not handle a Heka 2,8Ghz core, your friend maybe do something wrong. Maybe there is not enough airflow in his system.

to your Bios:
1. starting voltage, when you start you PC, you should set this to 10V
2. sounds more like a threshold temperatur for up-spining
3. Maximum temperature for full speed

sounds more like, if you set 35°C, the fan will start to spin higher and higher, but maybe starts to spin at 30°C.

[scyth]

Point is if there's any way for 0 or 200 rpm.

[sumo]

sure, if you set the right settings. But this also depends on your system and the PWM control of you Board.

[scyth]

Seems I cant have 0 or 200rpm.

If I let mugen2 fanless and I put 2 case fans, wont be better?

PS. U talked about some friend of mine... I was talking about Shinigami, he said that I cant use a fanless Orochi, do u disagree?

to your Bios:
1. starting voltage, when you start you PC, you should set this to 10V

But as I said, the available values are 4-6V.

[sumo]

NO, The Mugen 2 is not designed to work fanlass ore semi-fanless, so you should use a fan direct on the Mugen 2.

Please read carefully what Shinigami write down.

"You know, it is recommended to go (completel) fanless to max 70W TDP, if you have a decent airflow, then higher could work, but that is more of an individual thing. People sometimes think that completly shutting the pc and make things work fanless is how it works, but this is totally not how it should be."

70W TDP is that what you can cool easily, without many thought about optimized cooling etc. If you want to cool something above 70W TDP, than you have to start thinking about optimized airflow inside the case. And this airflow musst be high enough to prevent heat accumulation. Than you can try to cool more than this 70W fanless, as we do it on cebit with our X4 940 BE.

Than disable starting voltage, then it should be 12V.

[scyth]

Yes, we already said that Mugen2 is not designed for fanless function(as well as no other fanless heastsink exists).
But if I put 2 case fans in the right position(the exhaust and the intake), the intake fan will blow staight in mugen2...(this is what u call "decent airflow")
My temperatures are very good in this situation(about 40oC full load). In the winter there will be no fan at all. A fanless Mugen2 can keep very low a Phenom II cpu in winter, believe me...

-So, u tell me to disable the Smart Q-FAN Function from bios option.

[sumo]

We not suggest to use the Mugen 2 semi-fanless, but if it works in your case, be happy.

-So, u tell me to disable the Smart Q-FAN Function from bios option.

I said: disable starting voltage.

If this will result in disabling Q-Fan, then there is nothing what i can do, because we are not responsible for Bios Supprt of other companies. So in this way its maybe not possible on your board to use alle the abilities of the Slip Stream PWM fan.

Cheers Chris