Originally Posted by empower
i know i dont wanna do TEC, so i guess that leaves phase change.
Yeah. There's a million combinations and different ways to achieve similar results, but overall, I'm not aware of alternatives besides phase change and thermoelectric cooling solutions.
Originally Posted by empower
i was thinking, is a chill box absolutely necessary? most condensation would be on the cooling block, what if the mobo/vid card were mounted upside down so no moisture would drip on them?
Nope! Not at all. People who opt for chillboxes tend to do it for a couple reasons. I typically see:
- First and foremost, to my knowledge, the idea was invented to avoid the problem of condensation. That is, when things get below the dew point, you'll have water condensing on your motherboard! That's bad news. Also, if you have your system below freezing, you'll get frost build up too. Frost is not conductive, but if it's freezing and melting from the heatload of your computer, then you have a serious issue on hand. Chillboxes aim to avoid the whole problem but catching any moisture in the radiator.
- A chillbox chills the entire computer with relative ease. Rather than insulating your entire motherboard and graphics card(s), the chillbox allows you to just toss whatever hardware you want into it and it works fine. For systems with a northbridge, you also get the northbridge chilled too, which can be pretty helpful.
- It's kinda cool. I'm not gonna lie, the idea of having a box where the atmosphere inside it is dry and frigid is kinda cool. It's even cooler when your computer is inside it.
All that said, there's a couple trade offs. Space constraint being a big one. Do you have room for a big insulated box and a reservoir that can fit an AC evaporator in it? If so, maybe this is the right idea for you. If not, might wanna look into some smaller solutions. I personally don't have the room, so I'm digging into some other ideas right now.
The other trade off is that you're losing some efficiency that's proportional to how well or poorly you've insulated the chillbox.
In a direct die setup, the phase change is happening in a block that's sitting ontop of the processor, so the efficiency is at a maximum, assuming the block was made well.
(In case you're unfamiliar with the terms, in extreme cooling we have "liquid chillers" which cool a liquid that's run through a watercooling loop basically, and direct die which means that the cooling solution is in direct contact with the surface to be cooled. So a TEC would be sitting directly on the processor, or the evaporator in the phase change unit would be directly in contact with the processor)
Typically, if you're going to not use a chillbox, you'd want a layer of waterproofing, then insulation. You'll also want to protect sockets with dielectric grease.
For condensation-proofing I've seen people use:
- Conformal spray
- Clear Nail polish
- Art eraser
and there's probably many more options.
For insulation, I normally see people use neoprene or some other closed cell foam insulation.Edited by Skyl3r - 4/21/17 at 6:39am