RB17 Pro 2019 fan mod?

These things whine like crazy when they spin up, even at low speed and it's driving me crazy! Has anybody successfully changed out the fans in any Razer Blade?

 

What about the fan sound? Well at my unit it is not really rattling.
But do you only hear the airflow from the fans or do you also hear the the fan motors / fan blades rotating?
Here I tried to record the hum in the background of the airflow.
https://we.tl/t-ikLyGJ96YD

 

Thats the same noise I'm hearing - I don't remember the RB15 "whining" quite like that when the fans spin up.

 

So if your unit sounds like mine...maybe that is the normal sound for the fans of a RB?

 

Yikes - that whirring is so annoying. :|

 

So what do you plan to do?
I would replace the fan (it`s only the right one for me) but you would have to remove the headsink for it. And I do not want to do that. And where to get a new fan from?

 

Are there any aftermarket laptop fans that are built to run quieter?

 

they use PWM fans which tend to "whisttle" at lower speeds, on the RB15 as well. But now you got 4 of them instead of 2 and the bottom battery pack ones are smaller and have a different frequency.

 

I understood that he is annoyed by the "whirring" of the fan blades and nor by the air flow sound frequency.

 

That is why i said PWM fans. PWM causes a "Whistling sound at certain rotation speed frequencies. Because the fans on the bottom (2 battery fans) are different than the op fans they operate at different speeds (faster because they are smaller) and causes a whole different frequency of "whistling". So you basically have 2 sets of 2 fans all creating a high pitched sound but at a different frequency. It becomes almost like a chord in music instead of one single tone. The high pitched sound comes from the motor, not the fan blades.

More about PWM


Basically based on the fanspeed you create an audio curve because frequency modulation.

 

Interesting. This is specific to the type of fan they are using in the RBs or every laptop cooling fan?

 

Recently I have only seen PWM fans in laptops. Some have like a squeeky sound when spinning up, some a clicking sound when spinning up. All tend to have some whistle sound during certain fanspeeds (mostly when spinning down or lower fanspeeds).

DC controlled is fairly rare the past years as far as I know but could be wrong about that. I only opened Razer, Alienware, Dell, MSI, Acer, Apple and Gigabyte laptops the past 5 years. You can recognize them by the 4 instead of 3 wires.

 

Figure out how to fit MacbookPro fans in and zero whine/whistle It comes down to quality, plain and simple, not PWM vs DC.

 

Yikes - I woulda thought on a £2199 laptop quality was the main focus!

 

Apple pays more attention to these nuances than other makers; regardless of total cost associated. I have a RB Stealth and it also has high pitched fans.. The best I can do is tune the fans down to a tolerable RPM.

Thicker fan blades will naturally create lower frequency sounds.. Thin laptops tends to have high-pitched, whiny fans due to the lower density but Apple gets around this with using asymmetrical fans.. Not sure why other makers don't make this a requirement. A company like Razer just goes for the cheapest fan options. Same with Dell, HP, etc. I haven't heard of any other make as quiet as Apple fans..

 

I'm sure the Macbook fans could be cut to shape to fit in this thing - do you know where I could buy replacement Macbook laptop fans?

 

iFixit appears to sell some; not cheap; also Apple fans have boutique type connectors.. possibly could cut these off and wire them up somehow though.

https://www.ifixit.com/Store/Mac/Ma...uS9bNMZljft77uP2ccMVX_JHUO4hEHRMaAmu7EALw_wcB

 

Interestingly enough, the 17" versions (which is the size I'd be looking for) have the regular connectors, hooray! Is there any particular generation of these fans that were quiet or just all of them across the board?

 

Bullcrap, pwm fan noise is well documented. Apple uses maglev fans and react differently (and macbook pros get noisy under load too). Not that they fit and can do the job. They arent even in the size needed for providing an adequate airflow.

 

The Apple fans are made by Nidec, a known high quality fan manufacturer. Playstation 3 had several different fan manufacturers (Delta, NMB, and Nidec). The Nidec fans were always the quietest and usually the best performing.

 

The brand in this context doesnt matter. They use a variant of Maglev fans which where originally designed by Sunon and they still are built on that design (not all Macbook fans are made by Nidec, they got a couple of vendors). That is a whole different style of making those fanblade move compared to the usual brushless fan type for example. The sound characteristic is already different because of that. But the bynoises such as a whistle, click on start up and some high pitched frequencies are there because of how the fanspeeds itself are controlled with PWM frequencies. In that sense it will always be more noise within various fanspeed ranges.

 

Sure PWM itself can cause some electronic noise but the problem is the high pitched/whiny fan noise caused by sloppy design choices of the fan acoustic/blades themselves.

Macbook Pros get loud yes under loud but it's not a high pitched/annoying tone.. it's a deeper woosh sound, which is far less annoying.

 

Agreed on the lower whoosh part - once I find somewhere with some Macbook/Nidec fans in stock I'll post some updates here.

 

Again, pwm "whistle" has nothing to do with fanblades. Not to mention that they move about half the air.