Using a chiller like linus' on a gpu

[all things hardware]

Hey all, I am wanting to liquid cool a vega 64 or possibly a gtx 1080 using a chiller like Linus did by deconstructing an ac window mounted unit i have. If i use an ek block, what would i have to do to prepare it for the sub-ambient cooling?

[AnonymousGuy]

They're called water chillers (using an AC to do it is a ghetto hack), and you won't get better overclocks doing it on a GPU.  GPUs aren't thermal limited.  Only direct refrigerated cooling (where the block IS the evaporator in the AC loop) or LN2/DICE/etc will increase overclocks.

 

In any case going subambient is stupid because you'll get condensation in a hurry.

[all things hardware]

1 minute ago, AnonymousGuy said:

They're called water chillers (using an AC to do it is a ghetto hack), and you won't get better overclocks doing it on a GPU.  GPUs aren't thermal limited.  Only direct refrigerated cooling (where the block IS the evaporator in the AC loop) or LN2/DICE/etc will increase overclocks.

 

In any case going subambient is stupid because you'll get condensation in a hurry.

 

well, if you insulate the tubing and use the same techniques used in that video, condensation shouldn't be a problem. And if you oc a gpu high enough it will thermal throttle. So, therefore, having higher headroom would allow for higher ocing. 

[AskTJ]

No point. A high risk of killing the GPU. Get a 240mm AIO with an NZXT G12 bracket and watercool it that way. My brother is using his G12 and a coolermaster AIO on a 1070 and it reaches 45 under load.

[all things hardware]

1 minute ago, AskTJ said:

No point. A high risk of killing the GPU. Get a 240mm AIO with an NZXT G12 bracket and watercool it that way. My brother is using his G12 and a coolermaster AIO on a 1070 and it reaches 45 under load.

ok, thanks. There would be quite a benefit from cooling the cpu that way correct? I'm willing to risk it because I know how to insulate a board from doing experiments on older overclockable motherboards. and the ability to have that much headroom for overclocking the cpu would be great! i'll probably use a custom loop to cool the vega 

[AskTJ]

2 minutes ago, all things hardware said:

ok, thanks. There would be quite a benefit from cooling the cpu that way correct? I'm willing to risk it because I know how to insulate a board from doing experiments on older overclockable motherboards. and the ability to have that much headroom for overclocking the cpu would be great! i'll probably use a custom loop to cool the vega 

Yes, it will very well. There is also a fan included for the VRM's.

[all things hardware]

5 minutes ago, AskTJ said:

Yes, it will very well. There is also a fan included for the VRM's.

Cool, thanks!

[AnonymousGuy]

24 minutes ago, all things hardware said:

ok, thanks. There would be quite a benefit from cooling the cpu that way correct? I'm willing to risk it because I know how to insulate a board from doing experiments on older overclockable motherboards. and the ability to have that much headroom for overclocking the cpu would be great! i'll probably use a custom loop to cool the vega 

It's the same as GPU.  If you delid and direct die cool the CPU you won't be thermally limited anymore and unless you go deep sub zero you won't really squeeze out a better overclock.  I've been there and tried it.  1.7V on a 7700k pushing 0C water and it didn't really do any better than 1.55V.   This was in a room with <5% humidity where I didn't have to destroy a motherboard to insulate it from condensation.

 

At "normal" temperatures the silicon just hits a speed wall.