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Challenge: Matching power consumption of 2600k/2700k @5ghz with a 3770k on phase change. - Page 2

post #11 of 26
5/27/12 at 2:32pm
The thing with phase is that have a power consumption ratio of nearly 1:1 of the heat they're cooling.

A 300w heat load will meen the phase unit itself will be pulling 300w+

A 2500k at 5Ghz running 1.4v at full load is around 220-230w of heat load so a much higher clocked, hotter running Ivy will need even more power.

Most SS units tend to max at around 320-330w

There's no such thing as a budget phase unit, or a phase unit that's just 'right' for the job, you can't cheat or skimp on it you buy a 300w unit and use it and if you require more then that you have to use a 2 stage cascade.
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post #12 of 26
5/27/12 at 2:32pm
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Okay...
So wattage and temperature you want? It varies heavily from chip to chip, so what does your chip require temperature wise?
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post #13 of 26
5/27/12 at 6:52pm
Thread Starter 
> A 2500k at 5Ghz

This is about pushing an ivybridge past the performance of a sandybridge at 5ghz, not about cooling a sandybridge at 5ghz.

> budget phase unit,

It's not about a budget phase unit, the aim is to use the least amount of power possible to push an ivybridge to performance worth while of bothering with phase change, which I've spit balled at 6ghz.

> So wattage and temperature you want

Whatever the wattage works out to for an ivybridge(3770k/3570k) at 6ghz.
Edited by keiths - 5/27/12 at 7:01pm
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post #14 of 26
5/27/12 at 7:39pm
Ivy at 6Ghz is cascade country, even then it depends on getting a good chip. Mine was maxing a little over 5.9ghz at 1.7V, -104° at the evap, & I was only running single thread benchies with HT disabled. I haven't tried the 3770k on the single stage yet, but have a feeling 8 threads loaded can make it cry with a good overclock.
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post #15 of 26
5/27/12 at 8:14pm
Thread Starter 
Have you removed the IHS? People have been getting decent temperature drops from going without.
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post #16 of 26
5/27/12 at 8:29pm
I haven't delidded it, not sure if I'll be keeping this one, on ln2 it maxed at 6355mhz which isn't bad, but isn't particularly good either. I have to see about my flight to TO for the OCN party & make my dentist a rich man before I can see about getting more to bin.
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post #17 of 26
5/27/12 at 8:32pm
Thread Starter 
Yeah, 6355 is a low top end compared to what some other people have gotten.
Edited by keiths - 5/27/12 at 8:44pm
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post #18 of 26
5/28/12 at 5:00am
Quote:
Originally Posted by keiths View Post

> A 2500k at 5Ghz
This is about pushing an ivybridge past the performance of a sandybridge at 5ghz, not about cooling a sandybridge at 5ghz.
> budget phase unit,
It's not about a budget phase unit, the aim is to use the least amount of power possible to push an ivybridge to performance worth while of bothering with phase change, which I've spit balled at 6ghz.
> So wattage and temperature you want
Whatever the wattage works out to for an ivybridge(3770k/3570k) at 6ghz.

You've not understood a single thing I've said.....

If a 2500k at 5Ghz pushes arond 220-230w of heat how much would common sense tell you a 6Ghz Ivy would kick out?

I'll give you a hint, much more heat then any single stage unit will be able to handle...

As already said, you NEED a 2 stage cascade system which cost thousands.
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post #19 of 26
5/28/12 at 5:26am
Thread Starter 
You're arguing with yourself about single or multistage, what's been posed is ivy@6 with the least power, however the chips fall, and you're assume purchasing. As for single, ft 420 has approached 6ghz with a meh chip with the IHS on a single(actually, I'm not sure from rereading his post,) the verdict is still out on how a single would fair with a better chip with no IHS, maybe will have to stay at 5.9 to be stable on a single, dunno. Ivy runs hotter, but puts out less heat than a sandy, I don't what the watt tally will be for ivy@6, but sense tells me pointing to a 5ghz sandy isn't all she wrote.
Edited by keiths - 5/28/12 at 5:32am
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post #20 of 26
5/28/12 at 5:47am
Quote:
Originally Posted by keiths View Post

You're arguing with yourself about single or multistage, what's been posed is ivy@6 with the least power, however the chips fall, and you're assume purchasing. As for single, ft 420 has approached 6ghz with a meh chip with the IHS on a single(actually, I'm not sure from rereading his post,) the verdict is still out on how a single would fair with a better chip with no IHS, maybe will have to stay at 5.9 to be stable on a single, dunno. Ivy runs hotter, but puts out less heat than a sandy, I don't what the watt tally will be for ivy@6, but sense tells me pointing to a 5ghz sandy isn't all she wrote.

1. My problem is that I'm arguing with someone that knows nothing about phase cooling.

2. FT420 was running a cascade, Single stages can't get the evap temperature much lower then -55c, if you knew about phase you would know that.

3. Ivy does kick out more heat then Sandy, evap temps show that it does.

You can have a good binned Ivy chip that would sit happily at 6Ghz all day on reasonable voltage but you won't be able to run it on a single stage phase unit and that is common fact, no ifs, no buts and no exceptions.

Your only option is to use a 2 stage cascade system like FT420 did and as I've already said, they cost a good couple thousand dollars to make and easily consume 1Kw+ of power when in operation.
Edited by Mr Frosty - 5/28/12 at 5:57am
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