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Whats phase change? - Page 2

post #11 of 37
Yup.

I reckon i'll get about -35c with my Prommy Mach I

Most processor's won't boot below -150c, i don't know why i might just be because it's too cold but i'll let Colin answer that one.

Phase change systems allow for much higher Overclocks, like Shawn said the Colder the Transistors are the more efficient they are and the more time's they can switch from 1 to 0 and so on and so forth.

Like Yiffy sais it's like Air Conditioning... A compressor compresses a Gas (Refrigerant) and then it passes through a Consenser (much like a Radiator) which make's the Gas a liquid it then travels through a Capillary tube to the Evaporator (like a Water Block) and the Liquid Boild off (It Changes state, changing state requires a lot of energy with it get's form the CPU) and the gas travels back to the Compressor through the suction like which is under negitive pressure.
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post #12 of 37
Quote:
Originally Posted by 711
Yeah, like if a 3.2 chip runs on water cooling at 4.0 and 20C, a 3.2 chip on phase change at 4.0 would need to run at even colder than 20C? >.>

Something's not clicking for me.
Other way around. As other have said, the transistors inside the processor become more efficient at lower temperatures, mostly because as something gets cooler, it contracts, and therefor the distance between each gate in the transistor gets narrower and requires less electrons to trip. That's my understanding of it at least. Anyway, so taking your example, if you had a 3.2GHz chip that runs 4GHz on water at 30C sustained load temperatures at say 1.4 volts. Now, theoretically speaking, that same chip at the same 1.4 volts could run higher than 4GHz. How much higher is difficult to say, but probably around 4.2GHz. There's also the added benefit of sub-zero temperatures that you can run higher voltages, and attain higher overclocks, than you could with normal cooling methods.
    
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post #13 of 37
It would be sweet to get one of those and overclock my 2000+ thoroughbred to death.
post #14 of 37
It seems rather expensive for that extra 200 MHz. But that's just my opinion, for other people it may be worth the added expense. Theoretically, the CPU would last longer when running at subzero temps. However, most OCers would probably upgrade before their CPU died. There may be other benefits as well that I'm not aware of.
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post #15 of 37
Yes, you missed my second point. I was saying you could see 200MHz gain at that one same voltage setting, now when you start increasing the voltage... As well as being able to run higher voltages than you could with air or water for even higher overclocks.
    
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post #16 of 37
Quote:
Originally Posted by 711
Yeah, like if a 3.2 chip runs on water cooling at 4.0 and 20C, a 3.2 chip on phase change at 4.0 would need to run at even colder than 20C? >.>

Something's not clicking for me.
k well the chip has a clock in it basically, and when its "ticking" that fast, it kinda starts skipping ticks and just can't stay at a constant speed causing random clocks and therefore instability

then it also goes back to my FAQ in my signature.
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post #17 of 37
I think my understanding broadens now. =P

Any idea what the fastest recorder stable overclock was?
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post #18 of 37
Quote:
Originally Posted by 711
I think my understanding broadens now. =P

Any idea what the fastest recorder stable overclock was?
For Intel it was like 7.2GHz and for AMD it was 4.0GHz.
    
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post #19 of 37
And which was better? XD

(I feel like a toddler, "why? why? why? why?")
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post #20 of 37
Quote:
Originally Posted by 711
And which was better? XD

(I feel like a toddler, "why? why? why? why?")
Intel, because it can process more than the amd (use this formula, intel = 6/9 AMD = 9/6) due to the intrusions, the intel would win..
    
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