Vapochill LS and Mach ST/GT test part1

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Originally posted by OPPAINTER
Well I do know you can under charge a system and get great temps at a low load, but if you apply a tougher load it will bury the thing.
You then add refidgerent to optimize it for the heavy load.
And next thing you know, the low load temps are not as good anymore.

OPP

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Hmm so basically you are saying the LS would perform better if the CPU gets hotter?
current cpu's dont have alot of heat load, a A64 3400+ at 1.9v and 3 ghz gives out around 172 watt. I wonder why asetek was thinking. Not everyone has a EE that would give off around 200 watt at 4,2 ghz with 1.83v

If so , for what heatload is the LS tuned for?

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Originally posted by EmineM
Hmm so basically you are saying the LS would perform better if the CPU gets hotter?

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I'm not saying that.
I'm just saying that if it's optimised for a heavier load then there is a chance it will handle it better then the MachII.

OPP

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Originally posted by pkrew
Finally have mine up and running with a 2.8C at 295 fsb. Haven't been able to get the control panel loaded atm, but working on it. vcore is 1.85 in the bios and the evaphead is showing -47 degrees at idle.

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At what ambient temp and fan speeds did you get -47°? And do you have any seething coming from the compressor accompanied by a rise in evap temp?

To give you a picture of what I mean, take a look at this idle screenshot. I ran the idle test for app. 2 hours, at 100% fan speeds and at an ambient temp 14°C dropping to 10°C over the test period.

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Originally posted by OPPAINTER
I'm not saying that.
I'm just saying that if it's optimised for a heavier load then there is a chance it will handle it better then the MachII.

OPP

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k, but which mach II, the original or the gt

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Originally posted by comment
At what ambient temp and fan speeds did you get -47°? And do you have any seething coming from the compressor accompanied by a rise in evap temp?

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The ambient is probably around 60-65 F. I'm not hooked up the control center so I'm not sure about the fan speed, but I suspect its at default or 75%. The evap temp stays pretty constant varying about 1-2 C. I don't hear anything I'd call seething. I hear what I'd call gurgling or like water dripping. Other than that all I hear are the fans. When I hook up to the usb I'll look and see what I'm getting.

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Originally posted by EmineM
Hmm so basically you are saying the LS would perform better if the CPU gets hotter?
If so , for what heatload is the LS tuned for?

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If the unit is tweaked for 240-250w of heatload, the evap may be flooded with coolant with only 130-150w heatload applied. If its too flooded the coolant wont have time to evaporate which again leeds to worse performance/higher temps.
Doing this sounds a little risky, cause unevaporated coolant might return to the compressor and shorten the lifetime of it.

Im far from an expert on the subject, but from what I have understood this is how it is. Right or wrong.. it sounds reasonable to me.

Here are mine Temps on an P4 3,4 EE @ high load/idle with high voltage...

Well, i have running Prime AND CPUBurn at the same time. This gives you the maximum heat on a P4 and i am pretty impressed with the Load Temps of the LS.

i think asetek is smart enough to put in an accumulator...

Idle :

Load :

well when the vapo is suddenly loaded, temps also increase suddenly. but it will RECOVER quickly with lower stable temps.

Merenfreak, like i pointed out earlier in this thread, the 1024K Prime FFT's do NOT generate as much heat as smaller 8-10K FFT's due to the fact 1024K's are done by memory whereas the smaller ones fit in the chips level 2 cache and gererate more stress and therefore heat.

:rolleyes:

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Merenfreak, like i pointed out earlier in this thread, the 1024K Prime FFT's do NOT generate as much heat as smaller 8-10K FFT's due to the fact 1024K's are done by memory whereas the smaller ones fit in the chips level 2 cache and gererate more stress and therefore heat.

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Yeah, but CPU Burn does ;)
Try it out, it will give you more heat then the 8-10 FT .

cya

I think some tests with an A64 would be the next step, hopefully nearer 3ghz/2.00v. At some point the LS will or shouldgap the MachII/MachII ST, and likely approach the MachII GT.
It may only come into it's own with the very best processors reaching the highest clocks on big voltage. It has to break the MachII's capacity as Opp suggested. It might be quite hard to do an require a rare processor to achieve.

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Originally posted by Formann
If the unit is tweaked for 240-250w of heatload, the evap may be flooded with coolant with only 130-150w heatload applied. If its too flooded the coolant wont have time to evaporate which again leeds to worse performance/higher temps.
Doing this sounds a little risky, cause unevaporated coolant might return to the compressor and shorten the lifetime of it.

Im far from an expert on the subject, but from what I have understood this is how it is. Right or wrong.. it sounds reasonable to me.

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The coolant returning to the compressor, could that result in the seething I'm hearing? And the rise in evap temp?

[EDIT]: What's your ambient temp?

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Originally posted by comment
The coolant returning to the compressor, could that result in the seething I'm hearing? And the rise in evap temp?

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Possibly some off those weird noises could be :confused:. If you have had the sides off, is the compressor freezing up at the return line ?

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Originally posted by Nico
Possibly some off those weird noises could be :confused:. If you have had the sides off, is the compressor freezing up at the return line ?

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That remindsme of the most most annoying thing about my LS so far:

Remove the sides and your warranty is lost :mad: :mad:

u r kidding me.....

wtf?!

thats kind of interesting..

Unfortunately true, you can remove the front panel, but not the side panels.

honestly, that's just stupid...

Its like Corsair and OCZ selling ram to overclockers, but requiring a professional technican to install them.. .

Is there some sort of seal on the panels?

There is no reason to open the box unless you want to alter something. If you alter or mod something - for instance the charge of refrigerant the warranty will be voided anyway. Just like all other compressor based systems on the market.

We have placed all relevant electronics and cabling inside the PC case instead of the inside cooling unit. Because of this, there is really no reason to open the unit. The unit is clearly marked not to open it, and there are stickers inside the unit as well.

Not really different from other hardware - for instance a HDD. The primary reason for this is, that we KNOW you like to tweak - no problem :) You just have to take responsibility as we also KNOW from epxerience, that people like to mess around with wires etc. As there is 115/230VAC inside the unit, it is extrelemely dangerous for people that do not know what they are messing with.

Therefore - from a legal point of view, we have done it this way. In other words - if a person gets killed or damaged due to electrical shock form our unit, we know that the box was opened, and it is out of our hands.

As stated previously - recharging the unit, changing electronics etc. will void the warranty anyway. And as we are sure you are aware of (and can see through the holes in the panels) there is really no black magic in there ;) A compressor, two fans, a radiator and some electronics.

what about maintance of the unit overtime? cleaning out dust which can collect on the condensor and degrade performance?..

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Originally posted by Ragnarok
what about maintance of the unit overtime? cleaning out dust which can collect on the condensor and degrade performance?..

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Yep id like to here an offical answer to that even though i dont own one. Ragnarok has a prefectly valid point ;)

I have to agree, dust is a major pain in the a$$ and surely if you wanted to keep the unit clean and optimal you would have to take off the sides.

Or would you have to send it back for the "professionals" to do it?

Anarki.