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[GUIDE][Hard mod] Nexus 5's throttling solved by adding thermal paste.

OP pyj08178

28th January 2014, 05:22 PM   |  #1  
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Try this at your own risk. Warranty is voided (obviously) if you do this mod.
I will try to add some more useful pics & links in the future.
More proof will be added if its needed.
Also this is my first guide so please pardon me and tell me what can I improve on.
(all photos here if links not working. https://www.dropbox.com/sh/ytidqu7ghvz8x1i/OIXAtT_8Pu)

Some important info first:

Phone info:
My Nexus 5 has a CPU binning of PVS 2 with -50mV undervolt for all clock speeds.
Running 4.4.2 stock rooted with latest stable Faux kernel.
Some shots of my Faux Clock settings (no signal in the pictures because i haven't put my SIM card in):
https://www.dropbox.com/s/gvmolw5vky...9-00-18-24.png
https://www.dropbox.com/s/h6j0azscvg...9-00-18-45.png
https://www.dropbox.com/s/5frslsm9cr...9-00-18-53.png
Don't even worry about that 85c limit that I set on picture 1. After this mod it wont even be close to 80c.

Antutu scores at 2.5Ghz:
30079 after mod room temperature 25c https://www.dropbox.com/s/lkeu4b9p6d...9-07-02-54.png
31191 before mod at temperature of -4c on a trip at a cold country https://www.dropbox.com/s/vqsilj39q3...9-06-14-16.png
Not the best scores but see the difference in the places tested?

Temperature immediately after 10 minutes of Asphalt 8:
(Temperature around the bottom right of the picture)
https://www.dropbox.com/s/kri8h8hxfx...9-00-46-20.png
It showed 54c 1 second later but anyway its still cooler than any phone I had before.
I played until 20 minutes and there is still ZERO throttling. I haven't tried playing any longer though but at 20 minutes its just a little warm, not even close to hot.
Oh and the room temperature was 25c.

The Nexus 4 copper block mod http://forum.xda-developers.com/nexu...ermal-t2144652 isn't ideal because of the smaller gap (1.5mm vs 0.5mm) so yeah.
WARNING: DON'T follow the way they applied the thermal paste on the N4 mod thread. IT IS WRONG because it will not be evenly spreaded.
Try to use good thermal paste's like the Noctua NT-H1, Arctic Cooling MX-2/MX-3/MX-4, Prolimatech PK-1/PK-2/PK-3, Tuniq TX-2, Gelid GC-Extreme and a few others that I can't recall.
Don't just pick any random paste because some are even WORSE than mayonnaise (yes, mayonnaise works but dont use it unless you want your phone to smell like rotten mayonnaise and I 'think' its electrically conductive).
DO NOT use electrically conductive thermal pastes like Indigo Xtreme & Coollaboratory Liquid Ultra/Pro as they are obviously not good for uses on the phone.
Also because the Indigo Xtreme & Coollaboratory Liquid Ultra/Pro WILL cause corrosion like this https://encrypted-tbn1.gstatic.com/i...bxk8xfDHIDvWJZ

Now the guide:

Step 1: Take your phone apart using this guide http://www.ifixit.com/Teardown/Nexus+5+Teardown/19016

Step 2: Step 14 at above link shows that square box beside to the left of number 53.
Now clean the square box and the SKHynix RAM( as seen in Step 11 at above link) with and a microfibre cloth to prevent leaving lint as lint affects thermal transfer.
Pour some rubbing alcohol on the cloth an rub the red coloured number 3 and black 'tick' off as the ink might affect thermal transfer as well.
A tissue can be used too but just remember to blow/clean the lint off.

Step 3: (Read this before applying thermal paste http://www.tomshardware.com/reviews/...nk,3058-9.html)
Now put thermal paste at the middle of the square box.
The paste has to cover the whole RAM (don't worry the CPU is just directly under it). Do not put too much or little as it isn't good.
Use the pea method like this http://core0.staticworld.net/images/...1574-orig.jpeg but you need to put much more because of the 0.5 mm gap between the RAM and the square box. Just make sure it fills the square box. Then put the RAM back.
It should look something like this when its done correctly (bottom right picture) https://www.dropbox.com/s/vci7uor6xlzt879/dsad.PNG
DO NOT let the paste overflow out of the box. To make sure how, just put the RAM back in place properly then take it out again.
If its too much/little then just add/remove some. To remove the additional paste, just use the microfibre cloth/tissue + rubbing alcohol to rub it away.

Now just put everything back and enjoy the phone that will probably never throttle while gaming Oh the thermal paste I used was Noctua NT-H1.

Well that's it. I hope my English is clear & good enough. Please leave a comment if there is anything more that I can add/remove/improve. Also leave a comment if you are unclear or have any questions regarding this.

Just hit thanks if this helped you
Last edited by pyj08178; 28th January 2014 at 11:08 PM. Reason: More useful info added, some grammar and words changed to understand it easier
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28th January 2014, 05:51 PM   |  #2  
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Modding pics & stuff used:
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Last edited by pyj08178; 29th January 2014 at 12:30 AM.
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28th January 2014, 06:34 PM   |  #3  
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Another reserved post just in case :P
28th January 2014, 09:39 PM   |  #4  
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well i dont want to take apart my phone but nice mod...

btw none of the Pictures is working!!
28th January 2014, 09:54 PM   |  #5  
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Quote:
Originally Posted by PLEEZEFRAGME

well i dont want to take apart my phone but nice mod...

btw none of the Pictures is working!!

Fixed for the dropbox ones. The others should be fine.
I only dared to did this because I lost my warranty in the first place by dropping my phone in the water.
It's dried & working already by putting the phone in a ziploc bag with rice + silica gel.
Last edited by pyj08178; 28th January 2014 at 09:58 PM.
28th January 2014, 10:02 PM   |  #6  
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I don't see pictures either.
Was waiting for this to be done with this phone.
Now, you should be able to post some crazy antutu scores?

WR

Sent from my Nexus 7
28th January 2014, 10:22 PM   |  #7  
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Quote:
Originally Posted by WarRaven

I don't see pictures either.
Was waiting for this to be done with this phone.
Now, you should be able to post some crazy antutu scores?

WR

Sent from my Nexus 7

Which pics you can't see? I'll probably update it tomorrow as its 6am here now... OP updated with antutu scores @ 2.5Ghz.
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28th January 2014, 10:32 PM   |  #8  
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I don't see any pics, little white boxes.

You should be able to smoke my score at room temperature.
This is mine, in a warm vehicle, 2.5ghz stock ROM(Art). Was 32c at start I believe.



BTW, I'm not attacking your thread or reasoning, just looking forward to results of this being done, and then used.
As well, what it could be pushed to😀

WR


Sent from my Nexus 5
28th January 2014, 10:47 PM   |  #9  
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Quote:
Originally Posted by WarRaven

I don't see any pics, little white boxes.

You should be able to smoke my score at room temperature.
This is mine, in a warm vehicle, 2.5ghz stock ROM(Art). Was 32c at start I believe.



BTW, I'm not attacking your thread or reasoning, just looking forward to results of this being done, and then used.
As well, what it could be pushed to��

WR


Sent from my Nexus 5

What's your PVS number?I don't have any before pics but i remember it was around 20-23k scores before the mod. Its not high but after doing this the phone only feels warm to the touch, not hot anymore. I've seen scores high as 38775 but no matter what I just can't get past 32k. Just fyi I live in Singapore.
Last edited by pyj08178; 28th January 2014 at 10:55 PM.
28th January 2014, 10:54 PM   |  #10  
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I'm not sure, can never get it.
I don't under volt so I never bothered.

Yeah, I'm northern Alberta Canada.
Warm right now, unusually nice, means the bad stuff is coming with a vengeance.

Though prior to testing my core read
32c or so.. little lower then normal but not cold. When it's colder then a witch's tit here in February, I'll do a cold test then for yucks.


WR


Sent from my Nexus 5

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