Backside CPU cooling.

[DeathtoGnomes]

I have been wondering what everyone thinks about changing CPU/heatsink backing plates into heatsinks with fans or even adapt them for water cooling. I recently bought a Enthoo Primo and noticed I have a lot of room to work with on the backside for "something". I read that its only good for 3-5 degrees for the CPU base temps.

If you do cool the back of the MB or something similar like this, post some pics.

 

[OneMoar]

silicon is a insulator, + you would be likely to short something out for 5C not even worth thinking about

 

[Mussels]

my previous case has a fan mount behind the CPU socket. my current one just has a large open area. heatsinks and water cooling are not worth it with the low heat back there, airflow can help a small amount.

 

[fullinfusion]

silicon is a insulator, + you would be likely to short something out for 5C not even worth thinking about

Wheres your adventure in this @OneMoar

Id go for it for sure...

 

[RejZoR]

Use a thermal pad and press it against the rear of the CPU socket and then somehow mount a heatsink with a fan over it. Or just pointing a fan at the back should also help a bit.

 

[silentbogo]

Dunno, there isn't much heat on the back of the motherboard to disperse. It might be more beneficial to mount a peltier element with HSF to the back of the socket.
I have one laying around - can try it tomorrow on my fresh 1150 rig without case.

Wheres your adventure in this @OneMoar

Id go for it for sure...

We need more people like you. Remember, I used to have a TPU account about 6-7 years ago before comcast deleted my email (cancelled contract == bye-bye all data) and people would do crazy stuff and experiment with hardware - now I mostly see facebook-appropriate topics like "What games are you playing" and "What does your PC look like".... very sad...

Where's the enthusiast spark?! Where's adventure?!..
Everyone get your LN pots, dice boxes and TEC/H20 rigs and get to work!

 

[krusha03]

Actually for AMD FX CPUs this is very useful in decreasing socket / vrm temperatures

 

[erixx]

1st step should be to not cramp that area full with cables of all kind so air can flow.
2nd step is to remove unnecesarry metal of the case plate where the mobo is mounted, like sewing a square out of it so that mobo rear becomes visible (keeping in mind the screws placement and case stability)
Only then start to think about fans etc, drilling case side.....

 

[Ferrum Master]

Yes, it is actually needed only for the VRM as some boards even have output power stage on the backside. Otherwise... for the CPU, you suppose the heat transfers so much via LGA pins... lol? The VRM is the one that heats up the place there as it is constructed to conduct the heat to the board.

 

[DeathtoGnomes]

LOL some of these. I have a old amd backing plate, its one piece of solid steel. What surprises me is that no one thought about designing one as a healtsink with just fins.

idk who hasnt seen the Enthoo Primo but the backside cavity behind the CPU is twice what it is for most mid-tower cases. There is a ton of room for both wires and whatever might be decided for cooling.

 

[erixx]

Yeah. The whole "Sabertooth concept" could be pushed so much more further with airflow THRU the motherboard etc etc etc. But it seams geniuses are not allowed to implement ideas by the marketing department, lol

 

[DeathtoGnomes]

Yeah. The whole "Sabertooth concept" could be pushed so much more further with airflow THRU the motherboard etc etc etc. But it seams geniuses are not allowed to implement ideas by the marketing department, lol

I always pictured someone at ASUS going around and saying "Brilliant!" to every idea that makes them a buck.

 

[GorbazTheDragon]

Yeah, get a thick thermal pad, maybe a 2mm one and sandwich the board. It should decrease the temps a bit, although this is probably only really useful on FX CPUs, which are notoriously bad with socket/VRM temps. You could also try to make contact on the backside of the VRM fets, which might help those a little too.

 

[Schmuckley]

The risk of shorting something vs the minimal temp decrease would not be worth it, IMO.
Thermal pad might work,but it will not be ideal conductivity.

 

[OneMoar]

Wheres your adventure in this @OneMoar

Id go for it for sure...

because I know how it will end for the op
you need to account for the ability of the person you are talking to when making a recommendation
been there done that anyway

 

[GorbazTheDragon]

The risk of shorting something vs the minimal temp decrease would not be worth it, IMO.
Thermal pad might work,but it will not be ideal conductivity.

You need the thermal pad, there is no other way to get a good interface without shorting it. But the thermal pad should be 100% safe as far as that goes

 

[Schmuckley]

You need the thermal pad, there is no other way to get a good interface without shorting it. But the thermal pad should be 100% safe as far as that goes

This is true..

 

[GorbazTheDragon]

This is true..

I mean you could always try to find the ground traces and solder the heatsink to those hehehe

 

[DeathtoGnomes]

Well being that no one else is brave enough to do something, I see no need to change the status quo.

I dont doubt that some tried to use thermal paste to apply a heatsink of sorts back there, the lack of pics seem to prove such "adventures" have ended in failure.

 

[Schmuckley]

Well being that no one else is brave enough to do something, I see no need to change the status quo.

I dont doubt that some tried to use thermal paste to apply a heatsink of sorts back there, the lack of pics seem to prove such "adventures" have ended in failure.

I have to agree with that.

 

[krusha03]

Well being that no one else is brave enough to do something, I see no need to change the status quo.

I dont doubt that some tried to use thermal paste to apply a heatsink of sorts back there, the lack of pics seem to prove such "adventures" have ended in failure.

I know people that have used zip ties to attach a small fan behind the plate. I used a ram cooler blowing over my VRMs instead

 

[Toothless]

Moving air much? Probably not enough to do a 5c difference but it's a tiny cute fan at least.

 

[DeathtoGnomes]

LOL @Toothless If I am going to mount a fan I will use brackets like these to mount something "a bit bigger". Duct tape is not off the table for fan mounting.

 

[Toothless]

LOL @Toothless If I am going to mount a fan I will use brackets like these to mount something "a bit bigger". Duct tape is not off the table for fan mounting.

But, electrical tape and love is all you need to mount anything.

 

[OneMoar]

enjoy your broken hardware