Overclock!!!

[diluzio91]

cOfHN_MV8yc

[TheGreatSatan]

It's Duck!! Haven't seen him around some of the forums in a long time.

[mDust]

It's Duck!! Haven't seen him around some of the forums in a long time.

That's a feminine looking he and a wicked OC.

[SXRguyinMA]

indeed. that's nuts!

[Konrad]

I wonder how much effect the ambient room temperature has on these record attempts.

[SXRguyinMA]

with LN2 I wouldn't think too much :think: I'm not big into the LN2 thing though so I can't say for sure

:EDIT: now that I think about it you have a valid point regarding the mosfets and chipsets though

[mDust]

I wonder how much effect the ambient room temperature has on these record attempts.


:EDIT: now that I think about it you have a valid point regarding the mosfets and chipsets though

It probably doesn't affect it a whole lot, otherwise they'd have it all liquid cooled.

[Konrad]

I'd personally be a little worried by all that "boiling" nitrogen spluttering around on the motherboard.

This is the first LN2 OC I've actually seen that was stable long enough to run CPU-Z. Most videos show BIOS screen reports.

[mDust]

I'd personally be a little worried by all that "boiling" nitrogen spluttering around on the motherboard.

This is the first LN2 OC I've actually seen that was stable long enough to run CPU-Z. Most videos show BIOS screen reports.
Those LN2 drops probably don't even land as liquid. It shouldn't be a problem.
Yeah, this one looked professional. If they are sponsored or just have cash for a ton of LN2 then they can keep refilling the pot as necessary to run as long as they want.

[d_stilgar]

I'm pretty sure the LN2 evaporates right above a surface instead of getting it wet, unless the surface is also really cold. There's enough heat transfer that it evaporates on "contact" before ever contacting the processor. I've played with LN2 before. If you drop it on the floor it will dance all around. Same thing there. It never actually touches the floor.

[Konrad]

I've heard about using dry ice (frozen CO) instead of LN2. Apparently not very popular with the extremers. Not cold enough? Just as difficult/unsafe to handle for this sort of application?

Never played with LN2. I don't mind throwing chunks of lithium into the rain puddles or torching magnesium ingots ... but LN2 scares me.

[diluzio91]

I'm pretty sure the LN2 evaporates right above a surface instead of getting it wet, unless the surface is also really cold. There's enough heat transfer that it evaporates on "contact" before ever contacting the processor. I've played with LN2 before. If you drop it on the floor it will dance all around. Same thing there. It never actually touches the floor.

i think the biggest issue is the condensation that form from the extreme cold? Anyone know about that/

[diluzio91]

I'm pretty sure the LN2 evaporates right above a surface instead of getting it wet, unless the surface is also really cold. There's enough heat transfer that it evaporates on "contact" before ever contacting the processor. I've played with LN2 before. If you drop it on the floor it will dance all around. Same thing there. It never actually touches the floor.

i think the biggest issue is the condensation that form from the extreme cold? Anyone know about that?

[slaveofconvention]

That's basically what all the towels wrapped around the cup are about. I've seen rigs using below freezing cooling before, phase change, that kind of thing and you usually have to do some pretty serious work on your board first, like sealing components etc to prevent shorts - I'm going to stick with my Thermatake Frio lol (unless someone sends me something cooler that is, of course)

[Konrad]

Conformal sealants would work. Or maybe they wouldn't? Doesn't hurt to have an extra layer of insulator (which can get brittle first) on top of the mobo, eh?

I think you're right about the droplets evaporating before they can even land. The few that might land aren't significant, just a little extra spot cooling on the mobo. N2 (liquid or gas) is a non-metal, very poor electrical conductor, very weak paramagnetic. It's also a covalently-bonded diatomic (as liquid or gas); it won't act as a solvent or polar conductor (like water would).

I'd still be worried about brittling the mobo plastics. And overcooling things like caps (does the electrolyte freeze?) or V-regs outside their operating params. I think I'd still be wearing gloves and aprons though, wouldn't look as stylish as ducky. Just a big safe crybaby without any 7GHz overclocks, lol.

[SXRguyinMA]

lol