Crazy cooling idea

[Cylus13]

After watch a bunch of videos on liquid cooling of video cards. I saw the use of thermal tape for some of the other lesser components on the gpu. My question is, is thermal tape conductive. If not could it be used to put a second cpu cooler on the back side of the motherboard. And if it is possible, does it even add any cooling value to your system?

[Sarra]

8 minutes ago, Cylus13 said:

After watch a bunch of videos on liquid cooling of video cards. I saw the use of thermal tape for some of the other lesser components on the gpu. My question is, is thermal tape conductive. If not could it be used to put a second cpu cooler on the back side of the motherboard. And if it is possible, does it even add any cooling value to your system?

It's possible, but not beneficial. The back of motherboard sockets usually is covered in SMD's, and you would basically be cooling them, and they don't really need cooling. Heat from the CPU is going to dissipate into the board itself via the copper traces anyway, so technically, the entire board is a single, giant heatsink.

 

Doing so wouldn't really hurt anything, but would provide no subjective benefit.

[RejZoR]

Thermal pads are non conductive. On CPU's, it's not that beneficial because rear of motherboard is so distanced from the actual CPU cores. There is the interposer of the CPU, then the CPU socket and motherboard PCB and then you're on the rear. It does make a bit more sense with GPU's that have metal backplate but no thermal pads. There it makes sense putting thermal pads between back of graphic card and the metal backplate.

[thermalgoop]

There are thermal pads, adhesive or otherwise, that are non-conductive. However, there's likely no benefit to cooling the back of your socket. There's so much material (CPU substrate, socket, mobo PCB, etc.) to go through that it wouldn't affect your CPU thermals in any meaningful way, and the tiny capacitors on the backside of the socket don't need additional cooling. If you wanted to get wild, you could try bare die cooling. Probably equally as risky, but going to be more effective at bringing down CPU temps than cooling the backside of the socket. Just be mindful of cracking the die under too much force. 

[thrasher_565]

9 hours ago, thermalgoop said:

There are thermal pads, adhesive or otherwise, that are non-conductive. However, there's likely no benefit to cooling the back of your socket. There's so much material (CPU substrate, socket, mobo PCB, etc.) to go through that it wouldn't affect your CPU thermals in any meaningful way, and the tiny capacitors on the backside of the socket don't need additional cooling. If you wanted to get wild, you could try bare die cooling. Probably equally as risky, but going to be more effective at bringing down CPU temps than cooling the backside of the socket. Just be mindful of cracking the die under too much force. 

hmm i just got an idea... i no there are passive case but what if you flipped your mb and sandwich the cpu with the mb tray and use the case as an heat sink...

[thermalgoop]

2 minutes ago, thrasher_565 said:

hmm i just got an idea... i no there are passive case but what if you flipped your mb and sandwich the cpu with the mb tray and use the case as an heat sink...

....uhhhh...I wouldn't recommend this... I highly doubt you'd be able to dissipate enough heat with a PC chassis. You'd basically only get any effective cooling out of the mobo tray part, because they're bolted or riveted to the rest of the case, which doesn't transfer enough heat to be useful. A small tower cooler has much more surface area in its fins than your mobo tray. Also, the mobo tray is usually painted or coated with something that wasn't designed with heat transfer in mind. And there's a lot of components that stick out over the CPU. You'd definitely be better off with one of these or one of these or just bolting your parts to a slab of wood and using one of these. 

[thrasher_565]

5 minutes ago, thermalgoop said:

....uhhhh...I wouldn't recommend this... I highly doubt you'd be able to dissipate enough heat with a PC chassis. You'd basically only get any effective cooling out of the mobo tray part, because they're bolted or riveted to the rest of the case, which doesn't transfer enough heat to be useful. A small tower cooler has much more surface area in its fins than your mobo tray. Also, the mobo tray is usually painted or coated with something that wasn't designed with heat transfer in mind. And there's a lot of components that stick out over the CPU. You'd definitely be better off with one of these or one of these or just bolting your parts to a slab of wood and using one of these. 

ya your probably right but it be funny to see. i mean you can use a cpu spacer and sand a patch for the cpu.

 

all the other stuff cost way to much

Edited December 21, 2020 by thrasher_565

[Cylus13]

18 hours ago, Sarra said:

It's possible, but not beneficial. The back of motherboard sockets usually is covered in SMD's, and you would basically be cooling them, and they don't really need cooling. Heat from the CPU is going to dissipate into the board itself via the copper traces anyway, so technically, the entire board is a single, giant heatsink.

 

Doing so wouldn't really hurt anything, but would provide no subjective benefit.

It would still be cool to see it done once though. I just wish I had the money to try it. 

[LogicalDrm]

-> Moved to Cooling