Why dont you make PWM fans available for the Musashi

[jrturbo]

Hi there

I have just purchased a musashi VGA cooler for my Sapphire radeon 4870 512mb and the fan on the original vga cooler is a PWM.

I may understand that for compatibility reasons its easier to sell the kit with 3 pin fans, but I feel that you should also sell another kit with pwm fans, or at least sell the pwm fans separately.

What even worse in my eyes is that you do have a similar sized pwm fan available, like the one supplied with the shuriken CPU cooler, but having checked with several online vendors and your own official product listing, you do not appear to sell this pwm fan on its own.

So could you please tell me how I can obtain 2 replacement pwm slim fans


Regards

Joe Rubido

[hiroshige]

Hello jrturbo,

actually there are no plans to sell the 100 mm PWM slim fans seperately as far as I know, but I will forward this to our product management - maybe they can give you some more information.

Cheers,
Stefan - Scythe EU Hamburg

[Shinigami]

Hi jrturbo,

Thank you very much for your message and greetings from Scythe.

One thing against PWM would be the fan controlers on the VGA cards. Depending on the mahnufacturer, the tuning is different, so chances are that it will be unnecessarily loud or hot. Connecting the PWm fans to the motherbaord has even less sense because the fan controling will be done not accoring to VGA laod and temperature. The other thing is, that we need to use also different connectors, which are smaller for VGA cards.

We are currently checking what we can do about the PWM issue and hopefully there will be a good improvement from Mainboard Manufacturer side there. Might be that we have a solution soon, so stay tuned and thanks for feedabck =D

Cheers,
Andy

[jrturbo]

Hi guys

Just to let you guys know I have converted my Scythe Musashi to Pwm fans, and I am really pleased with the results, the fans I used are the ones supplied with Shuriken CPU cooler. which have identical dimensions to original fan supplied.

I have a Saphire Radeon 4870 512mb, and is fitted with pwm fan as part of the original coooler assembly, I used the plug from the original and soldered wires taking care to leave unconected one the two rpm wires from the new pwm fans.

my 4870 idles at aprox 45º c with ambient temp of 25º c at which point the automatic fan speed control for the fan shows between 2% and 5% fan speed.

If I wish to go for maximum overclock, all it requires is selecting manual fan speed control in ati overdrive, and the new fans will reach 2200 rpm instead of 2000 rpm, so they will provide a little extra cooling at the expense of slightly more noise.

I still think it would be quite easy to implement, all it would require would be 2 pwm fans and a pwm splitter with a miniplug instead of a standard sized header plug.

Regards

Joe Rubido

[boldtaar]

Hi,
I also would like to see PWM controlled fan on the Musashi cooler.
Just purchase a Kabuto CPU Cooler, one of the reasons was the PWM fan.
I'm currently waiting on a new Radeon HD 5850 and probably going to replace the stock cooler with a Musashi cooler. I would like to control the fan speed from my overclocking software. Who whats to crawling around on the floor behind the PC to change there fan speeds, when software like Rivatuner and the ATI-drivers automatically can change fan speed when switching between different overclocking profiles?

Add PWM functional and give us the option to choose between PWM from the VGA card or a included fan-controller.
Replace the fans with the same fans that you have for the Shuriken CPU cooler and include a 4-pin PWM splitter cable so that the to two fans can be plug in directly to a videocard 4-pin PWM connector. I think Nvidia and ATI have the same small 4-pin connector on all there new high and mid range VGA cards, if not just make a splitter with more then one type of connector at the end.
If you are worried about compatibility then include a separate fan-controller with detachable fans. You can redesign the old controller so that the fans can be disconnected from it with two 3-pin connectors. A 4-pin PWM fan should work like a normal fan when connected to a 3-pin connector.

The only concern I have is for the maximum power output of the videocard fan connector. Can it handle two fans in the long run?
Great work jrturbo please tell me how you got hold on your two PWM fans and if you get any problem with your videocard!

Regards
Erik

[jrturbo]

Hi guys

Just to give you guys an update as per the questions posted by boldtaar

They slim pwm fans from scythe are identical except for the fact that they pwm, so installing them is a straight swap.

As far as I aware there, at present no one sells a pwm spliter harness with the micro plug that the VGA cards use, my solution was to use the plug and section of the wiring from the original fan and solder it to the wiring of the new pwm fans.

over four months have gone by since I carried out the mod and the fans still work fine, so in my view its a reliable solution.

The problem still remains in obtaining the relevant slim 100mm PWM fans to anyone who wishes to carry out the mod as scythe in their wisdom have decided not sell the pwm fans on their own, I personally feel this is an error on the part of scythe as I feel there is market out there who would buy these fans with the increase in popularity of htpc for example and generaly smaller cases for pc.

For those who dont have clearence problems,why not use standard 25mm depth PWM fans of 92mm,100mm and possibly 120mm , this would give even better cooling performance, although in my shuttle sx48p2 space is at a premium, so I had to stick with slim fans.

One recomendation I would make is to ensure that your computer case has good cooling, because in pwm mode its quite possible that when the graphic card is in idle state, the mushashi becomes a pasive cooler as the fans stop turning or spin very very slowly, this is because the heat generated by the GPU core is efectively disipated by the mushashi cooler even without the aid of the fans, but other components on the board may suffer from heat soak through lack of airflow, things like the VRM, etc, because the pwm fan reacts only to the GPU temp.

I presume this is one the reasons why scythe is reluctant to release a pwm version of the mushashi cooler.

Regards

Joe Rubido

[Okiwana Okimoto]

Hello,

we will not release a new revision with pwm fans, and i think it will be never come (at the moment). The sense is not really big and the Setsugen will have too a fan controller. I know what u guys mean but you need a lot of response to realize it