Better GPU fan

So I was wondering if anyone know a better fan for the P1xx/ P3xx series. So far the airflow is mediocre at best. even the tiny CPU fan pushes a lot more air out.

I'm a person who likes his temps really low, but my GPU is just to high:



I did some mods on the heatsink which are now near percetion, however the poor airflow due to the bad fan ruins is

 

I have been thinking the same thing for some time now. Altho since I removed one of gpu's from my P370EM and thermal pads between motherboard and master gpu I can max oc my cpu while reaching high 70's. Slave gpu fan is just there to move some air around and it seems to help a lot.

 

Have you considered a vacuum cooler to suck hot air out from the vent?

 

Not that I am aware of, the vacuum fan test would let you know if it even helps.

 

70 degrees is fine in my view, especially when you consider the 1060 Founders Edition will run hotter than that without being repasted.

 

More airflow will also mean more noise and airflow will give diminishing returns.

 

Didn't test with a vaccuum, but the airflow is terrible. The fan has a pretty bad design as well, hence it needs replacement. The fans are thick, there aren't many of them and it overall seems like bad design. The P870DM fans for instance have more fans and are curved, they produce about the same noise while having way superior airflow.

 

Hope you don't mind but what software do you use to display the temps, usage and fps like that?

It looks way better than RTSS.

 

Uhm, it is RTSS :'D

I Noticed the fan I had was slightly thinner in my P157SM so I gave it a go. The airflow is improved by a little bit and my temps always dropped a little bit on the GPU:

 

Oh...RTSS with which software?
MSI Afterburner?

I have been using HWMonitor. It's just plain purple text.

 

yeah it's with afterburner.

 

Was forced to build my own fan.

 

What is the best replacement fan for GPU?

 

if I knew that I wouldn't have been forced to build my own

 

hey bro do you have the eurocom bios for that system with (Fn + ) ?

 

Sorry, I use Prema BIOS and use Obsidians Fan control.


If you want proper fan control get this:
https://code.obsidian-pc.com/product/fancontrol/

 

Could you explain more about that fan upgrade? I see different wires so new motor? Does it uses same voltage as stock?

And almost double fan blades (17 to 29).

 

Yes it uses the same amount of voltage as the previous one does.

As you noticed i switched out the motor and the blades to gain a better airflow.

 

What laptop uses that fan where you got your parts?

 

It's a P870DM fan.

I tested the temperature in gaming:


The GPU is TDP unlocked to 100W and I streamed Witcher 3 to simulate a high load on the CPU.

 

Nice!
Going to do the same as my fan started to make strange sounds.

 

Keep in mind that a better fan can not make a difference if your heatsink fit is to bad.

 

I went ahead and installed P870DM fan. Had to grind it few mm shorter and taped it to heatsink with foil tape. I think it is safe to say my temperatures dropped at least 8 degrees! Noise level is about the same.

Now I wonder what can be done with slave GPU fan to make it perform more closer to master. Unigine Heaven loop max temps were 72C (master) 84C (slave).

 

I follow, parcel on the way.
Now only w8ing 4 it...

 

You could do the same.

 

A packet with fans arrived to me so I decided to do something with it.
The original plan was to replace the rotors and motors in both fans, unfortunately during the exchange one of the rotors mounting broke(brake?)...
Only one fan left me and I decided to go a little different way. The fan housing from p870 has been modified, the air outlet has been shortened by about 2 millimeters to fit in original place.
Unfortunately, I do not have enough time to perform a real comparison of temperature results in games using the original fan and the one from p870(for now).
At the moment I tested only GTA5 where the card reaches 73 degrees (2260rpm). This is not an extraordinary result if we talk about temperature because with the original fan the temperature reached 75 degrees (I did not pay attention to rpm here).
I will soon do more tests with temperatures(with rpms) in games.

 

Using the copper RAM heatsinks is a terrible idea.

 

Not if you use notepal u3 plus. Originally heatsink was used for cooling ov/oc 8970m.
I did not dismantle them because they are glued and I do not want to damage the heatsink, the heatpipe mount is not as strong as the one in p370SM(gpu1/master).
As soon as the new package comes, I will return to the modification of the CPU fan.

 

Even if you use notepal.
I tested this setup and all it does is delay the rising temps but causes extremely bad problems with cooling down as well, also makes an oven out of your notebook.

 

How large were your temp improvements? I see you are at 59C at 100W but what were you at before? Are you forcing the fan to max speed? I am skeptical that you saw much improvement because that fan blade is built to spin clockwise, while the fan shroud is built for a counter-clockwise rotating fan, and idk which way your motor will spin it.

Inconsistencies with fan blade, shroud, and heatpipe/radiator design are what have prevented me from also doing my own fan blade for my GPU. The GPU radiator is built for a counter-clockwise fan due to the heat pipes coming in from the left, so you want more air flow at the start of the pipes, not the end. I do not know how much this matters though.

 

The modified 8970 could reach a temperature of 86 degrees while playing. The laptop stood with an open lower service flap, on the notepal u3 with 3 fans that constantly blew air on copper radiators glued to the heatsink of the graphics card core, reducing the temperature to ~ 80 degrees. If I find a way to remove them gently, I will do it. At the moment, the lowest temperature for gpu with fan rpms forced to the max is 64 degrees. So yeah, nothing special.
But p170 heatsink is not the same as p3xx one(i got both of them, the "better ones").

Khenglish, valuable remark, I did not include it.

 

The adhesive on those copper heatsinks doesn't hold up to the temperatures the CPU and GPU tend to dish out. Keep an eye on them, as they may come loose and you don't want them making contact with the board.

 

The only difference is a metal plate connecting the vram heatsink with the 2 heatpipes from the GPU. Otherwise they are the same.

A couple degrees, I'd say max 3-5c improvement. Fans are around ~80% according to Obsidians Fan control.

 

Thank you for your advice. Copper heatsinks are attached to the graphics card heatsink with the Arctic Silver Thermal Adhesive, and not by black double-sided adhesive tape.

Unfortunately, what you write is not true. You can see the heatsink from p170EM v2 on the previous page, and this is what the p3xxSM looks like.

 

In that case, you should be safe.

 

Tell me the difference, since all I see is basicially the same heatsink.

In term of thermal performance, they are pretty much identical. Aside from clevo trying to slightly improve on design which failed, there is no difference.

Even tho the vram heatpipe is slightly longer it doesn't really change anything at all.

 

Thanks to this, heatsink is more stable, and this plate also has a better transmitting heat than that the one from p710EM. I used both heatsinks in my clevo, the one from p3xx0sm had a few degrees lower temperatures. In addition, the heatsink installation from 3xx in the p1x0 series required modification of the service damper (cutting out).

 

You should get a much larger improvement if you can flip the fan upside down within the shroud. Then your fan will spin in the direction the fan shroud and heatsink were designed for.

 

Or flip the whole fan upside down like seen in new Clevo P775TM1.