M15x internal fan mods?

Just look on ebay and be vigilant, i asked seller and he said it was actual item pictured, so I bought it.

http://www.ebay.com/itm/272609416361?ul_noapp=true

worth it for an upgrade with no modifications.

 

I have no idea where the extra rating (5.5 to 7.7) comes from . I ordered the stock Delta version. I then compared it to the AVC fan.

There are no geometric differences (design of blades, # of blades, pitch, etc) between the two fans. They are also the same size (diameter, thickness). The only two differences between the fans are: 1) the Delta's motor is noticeable larger and 2) the Delta's shaft of Delta fan is noticeably thicker (actually the same diameter size as the M17x R2 fan that I purchased earlier).

Therefore, the only increase of the CFM rating can come from the maximum rotation speed of the fans. I used HWinfo64 to max the RPM of the fans. The AVC spun at 4,500 rotations per minute while the Delta spun at 5,000 rotations per minute. If there is a better method, please let me know so that I can perform a better test.

With that said (for everyday usage), I have not noticed any significant difference between the CPU temperatures using the two "different" fans. I still plan to get the M14x fans.

*I would also like to add, that the AVC CPU and AVC GPU Dell stock fans are the exact same. These two Alienware M15x fans were completely identical. The only difference between the two is the max speed that the motor is capable of spinning up to.

 

Hey guys,

So I have run 3 tests, 3 times each with my stock fan, I will crunch those numbers tomorrow.

The tests I have run are just what I have on hand.

1. Rainbow Six - Siege
2. Company of Heroes 2
3. AIDA64

I just modified the y510p to accept the m14xr2 fan, Its moves significantly more air than stock thats for sure. It even handled my 755m overvolted at 1.2v 1350core and 4700mq @ 3.4Ghz 4 core turbo.

I will be running the same 3 tests, 3 times each and getting the numbers to get an average and ill let you guys know the difference that shows up in my data.

It would be really helpful though, personally, if anyone can link me to projects of similar nature though. Something with before and after data, pictures are a plus.
I would be using them for references in my project in University. Anyways ill report back when I have the numbers and such.

(I know its not an alienware laptop I have, but I figure you guys would still be interested in how it works for people)

 

Hey everyone, I have finally got this stuff done.

I actually finished it a couple of days ago but right at the tail end of it, Excel crashed on me and I had to work up the will to start it over.

I have added it as an file, its a bunch of data, I havent made it into a bar graph as I still have to figure out how to do that with the applications I have (or can get online)

I ran most things 3 times, and the blue is the AVG, Highest reported temp, and Lowest reported temp summarized in blue for each section which is bolded.

My fan control is locked so I have stock fan curve or max fan (via cutting control wire for the fan) With the stock fan curve it actually resulted in worse temps in AIDA64 but forcing fan speed to max really reaps the benefits. I just ordered some Grizzly-C liquid metal to see how much of an improvement Ill get from NH-T1 that I usually use.

Let me know what you guys think, this is using the M14x R2 Fan.

 

I just ordered the M14x R2 CPU fan from Aliexpress. https://www.aliexpress.com/item/New...20904522.html?spm=2114.search0305.4.10.LdrDLR I tried to order it before but had problems with ordering. I haven't modded a fan before. I hope it all works out.

 

I have been wanting to try out one of the fans from the new Alienware 15 models (R2 and/or R3). They definitely have more than double the amount of blades compared to the stock M15x fan. Would anybody happen to know the dimensions of that fan? I've been asking all the sellers on eBay, but I have yet to get a reply. I don't want buy yet another fan that is too large for the M15x.


edit(11/2/2017): So I ended up ordering an Alienware 15 R3 fan. It will not fit in the M15x. The fan's diameter is too large.

 

That's good to know, Bartuc66. Thanks for the info. I haven't had any time to test mine out yet.

 

I don't know if anyone is still active in this thread, but I found that the Alienware 15 CPU fan looks like it might fit the M15x CPU fan. The 15 fan states 10/11CFM so I'm going to try this.

How did this work out?

 

As I mentioned earlier, I ordered an Alienware 15 fan. The diameter of the fan was too big to fit in the cpu fan case. Another thing to note is that the fan is about half as thick as the original Alienware M15x fans. I am still waiting for my M14x R2 fans. Aliexpress has not been a good experience so far. Two sellers didn't even bother to ship the fans out, and the returns process takes about 6 weeks. 3 months down the drain.

 

I'll update you when I get a chance to get it installed. I am going to order another one from ebay this time. I have had issues with buying from Alibaba recently. I probably give it a shot within the next month.

 

I just installed a GTX 980m and native fan control now works with the modded fan. Max temperature so far is 74 degrees C.

 

Nice, MZWiZard. I've decided to go with a 980m as well. I've got some Christmas cash to blow. I just got my fan today, btw.

 

Everything is together now. I just need to do the wiring. The fan fits and spins freely. I wish I had a soldering gun right about now. I'm taking pictures as I go.

*Or so I thought until I got it all together and running. I remedy this in the tutorial below.

 

I got it all together and working perfectly. The fan adjusts speeds automatically just fine. I'll post some pictures and tell you guys how I did it.

It blows a LOT more air than my 5.5 CFM stock CPU fan did.

First, pictures comparing the fans. The M14x CPU fan has a bigger exhaust than the M15x, but the fan itself is nearly the same size. Just a tiny bit bigger.

 

I probably should have read some guides on how to do this.
First, I thought maybe I would make some kind of taped up monster using what was left of the M14x's CPU shroud.
This everything was cut with rusty, old side cutters, btw.

What I ended up doing was using the original shroud with the new fan superglued to it.


Unfortunately, this side here is really close. The M14x's bottom fan casing was too close to the edge here. It would just barely not align with the screw holes so everything had to be taken apart, cut down, and re-superglued. I recommend that anyone who tries this should be careful to make sure to cut this part back more.


This is more what it should look like. (It would look better if you aren't poor like me and have to use side cutters to get the cutting done...)

 

Here is a picture of it together, but there were some problems I'll get to later.


I found out how to do the wiring from a guy named toto29620 who commented in an M17x thread about swapping in the same fan.

If you look really closely where the wires come out of the motor on the M14x fan, you can see little colored dots.
Red=power
Yellow= RPM
White=PWM
Black=ground
This means you need to match the M15x's red wire to red, the black wire to black, the blue wire to white, and the yellow wire to yellow.



Wrap these wires up with some electrical tape. (I used Scotch tape...)

 

I put it all together and it was working, but I was getting some buzzing from the fan blades. They were just a hair too close to the top of the shroud when in use.
I don't have any washers, so I improvised... I chopped off the screw holes from the old M14x with my sidecutters and made them into washers.


Problem solved. There is actually almost no gap between the top and bottom of the shroud and it doesn't seem to affect the airflow out the laptop, but if you end up needing to use washers, you could cover this minimal gap with some tape around the outside corner of the fan shroud. No more buzzing! This thing sounds like a freaking hair dryer if you have the fans cranked up!

Get ready to overclock!

Best of luck to anyone else who wants to try this. It was actually way easier than I thought and seems very effective so far.

 

Oh, if anyone wants to know about how I got the M15x CPU fan out of the shroud, I just wedged a standard screwdriver between the bottom of the fan motor and the shroud and it popped out with little effort.

 

Interested in your temperatures under 100% load now

 

I just tried some gaming while overclocked to 24x24x24x24x. My laptop used to get up into the upper 90s and throttle, now it stays around 75C. I ran Cineabench 3 times in a row with that overclock and the highest the temperature got was 82C on one core. If I crank up fanspeeds with HWINFO temps could get a bit cooler, I think. It's after midnight here so more testing will have to come later.

 

I didn't know that HWiNFO reset fan profiles if you closed the fan menu. I changed that to open minimized, so it's working better now. HWiNFO is reporting that the fan is spinning up to approximately 5,170 RPM. I think I've seen it go as high as 5,310 RPM. You can still hear the fans slowing down then speeding back up. I have ThrottleStop set at TDP (W) 85 and TDC (A) 62 for power. The turbo ratio limits are set to 25 on all cores.

Before doing the fan mod, I was getting nearly 100C on stock clocks and terminated the 1024M bench, so just making it through the bench is a big improvement from my perspective.

Room temp is 20.6

ThrottleStop 32M scores
14.757, temp 65C,
14.983, temp 65C,
14.502, temp 63C (benchmarks were run back to back).

Room temp is 21.2

ThrottleStop 1024M scores 460.916 (with custom auto fan profile) temp is 86C on all cores

*HWiNFO seems to have crashed during the benchmark.

ThrottleStop 1024M 474.028 (with custom auto fan profile temp is 85C on two cores.

*HWiNFO didn’t crash and the fan speeds remained constant.

ThrottleStop 1024M 471.461 (manual fan set at 5220). Max temp is 85C on two cores.

*HWiNFO didn’t crash and the fan speeds remained constant.

(Note: clock speed declined over time for all 1024M tests. The lowest was around 23.45, I think.)

 

The scores are based on seconds, so lower is actually better.

 

For the fun of it, I just tried running the 1024M benchmark. It took 465.387 seconds and my max temp was 93C - that is with standard fan. Usually, while gaming some GTAV or Division, it hovers around 85-90C. But the 980m never gets above 79C, even after hourly long sessions.

 

Cool. That's interesting to hear. As a side note, I figured out that part of my problem with HWinfo crashing had to do with the task priority settings. Since HWinfo was set to run on startup with task scheduler, it was automatically given a lower priority. After reading a guide here https://bdbits.wordpress.com/2010/04/29/setting-a-scheduled-task-process-priority/ , I was able to fix it. Now, HWinfo works perfectly in the background even during benchmarks.

 

Hey all, sorry to necro the thread but I've finally decided to bite the bullet and got myself an m15x. I was looking at this thread for ideas on fan mods and it got me thinking. Two of the part numbers for the fans used in the m15x is
"BNTA0815R5H" & "BATA0715R5H" which matches the Dell precision series of fan except for one letter in each (BNTA0815RH & "BATA0815R5H & BATA0715R5M". (m4600-m4800 were the 15 inch models and m6600-6800 were the 17 inch models.) I was originally looking to get the 4700 precision fan as it is rated 9.8 cfm which is a bit of an improvement over the stock one and seemed to have the exact same measurements, but then i noticed that the BATA0815R5H model fan comes in a whopping 12 cfm. Not only this but it fits in the 15 inch 4800 model. I intend to try it out as because they are both dells premium quality range I believe they would most likely use similar parts.

https://www.ebay.com/itm/Dell-Precision-M4700-15-6-Genuine-Laptop-Video-GPU-Cooling-Fan-CMH49/222723420258?hash=item33db59b062:g:UmYAAOSwTO9Z8Yb5&_sacat=0&_nkw=dell+m4700+gpu+fan&_from=R40&rt=nc&LH_TitleDesc=0 9.8 cfm

https://www.aliexpress.com/store/product/New-COOLING-FAN-FOR-Dell-Precision-M6700-M5700-CPU-COOLING-FAN-26PND-KSB0705HC-BK55/1830550_32376690386.html?spm=2114.search0204.3.1.639d6c87TPQWNc&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10151_10065_10344_10130_10068_10342_10547_10343_10340_10548_10341_10696_10084_10083_10618_10307_5011415_10131_10132_10133_10059_5011315_100031_10103_10624_10623_10622_10621_10620,searchweb201603_16,ppcSwitch_5_ppcChannel&algo_expid=dbeabe3b-f918-46ac-8d14-8368dfb39bc3-0&algo_pvid=dbeabe3b-f918-46ac-8d14-8368dfb39bc3&priceBeautifyAB=0 12 cfm

 

So i ended up buying a 6700 13 cfm fan and a 4700 9.7 cfm fan, I'll post updates when they arrive

 

Please do. Depending on your findings, I'll either go down this route or purchase an M17x CPU fan. Thanks!

 

Well what I'm hoping is that due to them both being made by dell that they probably use the same part size. On one of the aliexpress pages the m4700 fan was meant to be 5.5mm which is the same as the m15x fan.

 

Just got the m4700 fan - Its the exact same size as the m15x fan, how are they attached to the shround with glue?

 

How many stator cores are in that m4700 fan motor (as well as the 6700 one when you get it)? The stock M15x fans have 4 for example. If possible, could you post pics of the m4700 fan (and 6700 fan when you get it) opened up with the fan separated from the fan motor. I am asking, because I personally do not trust the cfm ratings labeled on these fans.

The fans are connected on the fan case using a type of metal shaft. You can pull the motor apart from the case if you are able to enlarge the hole that holds down the metal shaft. This hole can be seen by removing the sticker with the fan information. Keep in mind if you do this, you risk damaging the board. Furthermore you would also need to do this for the original M15x fan case. I do not suggest trying this method unless you know what you are doing or have extra M15x fans that you can practice on. I suggest you follow the method described earlier in this thread by MatsueMaiku. Cut out the area holding the the fan motor and use glue to attach it to the M15x fan case. If you go with this method, it will make the fan + motor "thicker" and run the risk of scraping against the top of the M15x fan case. To compensate for this, just go to a local tool hardware store and buy yourself three M2 washers (M2.5 washers work as well).

On a side note, does anybody know how to switch the polarity of the M14x fan without damaging the circuit board?

 

the m4700 fan has 6 cores - It should definitely be better, Ill try and attatch a photo when my internet stops playing up

 

Just got the m6700 fans - They are definitely bigger but it looks like it will fit just or just require the top of the shroud to be removed. These fans are 13 cfm so higher than the m17x fans and looks to be about the same size.

 

Heres a photo with all the fans together, the top one is the original fan.

 

Thanks for the pics. I wonder how much bigger (or smaller) that m6700 fan is compared to the M14x R2 fan. I guess I will also buy those two to add to the "fan report" I am working on. Is the m6700 fan around the same thickness as the original M15x fan?

 

the m6700 fan looks like you may need to remove the top of the shround to get it to fit properly, the 4800 will fit without any mods besides the connector cord. I just installed my 980m so I'm going to get cracking on the fan mod soon

 

Just to follow up with this, I ended up cutting the connector from my m17x cpu fan and soldering it onto the m4800 fan. It works perfectly and is a massive improvement over the stock fan. I imagine you could replicate this with any fan so im going to experiment to see what the best option is.

 

Just ordered a "4700 precision fan as it is rated 9.8 cfm" fan to try and swap in.

 

https://www.aliexpress.com/item/Lap...pm=a2g0s.13010208.99999999.268.2d043c00Rgl0DZ Just found this fan, which im ordering now. 65 CFM apparently

 

Probably just missing a decimal point. (6.5cfm)

On the M4700 wiring up to the stock connector is that obvious? Or is there some color swapping and 5th wire splicing?

 

just match the colors, if there isn't any it was red - blue - yellow - black from left to right.

 

How do you remove the stator of the m4700 fan and install it into the old metal shroud plate? Both seem firmly attached.

New M4700 fan has red black green then yellow wires.

 

the 4700 fan I cut from its casing using scissors, just cut the 3 plastics curves connecting it. This will add like 0.3mm in height but it should still be small enough. To get my m17x fan out I pried it off with a screw driver which required a decent amount of force. I just glued the fan to the shroud then and cut the top casing to better fit the fan

 

Ah makes sense, I will do that. For the wiring did you connect the yellow to yellow and blue to green?

 

My cables were all black on the cpu fan, but on the gpu the plug was the same so I just matched up the colors, mine didnt have green, but i assume that would be fine

 

M4700 fan has red black green then yellow wires, look at your pic of the M4700 fan.

 

I guess if you want it could be called a teal wire, shade is right between the green and blue from the M17x R2 GPU fan that arrived today. So I will wire that to blue. Thanks

 

I was talking about my alienware fan - Just match the colors to the ones that are there and most likely the left over ones will go together. You can check out a wire color code guide for help too https://www.hardwaresecrets.com/how-to-create-a-three-speed-fan-control-without-spending-a-dime/

 

And RE the green wire, IIRC one of the wires on the m15x is actually a dummy wire?

 

Yeah I think so. My wire ends should match up great to the M4700 and just need to glue it in tomorrow. Should be a nice upgrade to the base CPU fan.

Did you get those 11 cfm M17x R2 fans installed?

 

I've switched to an m17xr4, but I'm planning on putting the 13cfm fan in the cpu slot. I broke the one I had unfortunately but I have the 9.8 cfm one in there in the mean time while the new one ships.