How many watts the CPU gives off on load?

Do note that its only valid if you have SpeedStep/EIST/CnQ disabled and that this doesnt take into consideration the (very implicitly linked) power changes in the motherboard and ram.
 
Praetor said:
Do note that its only valid if you have SpeedStep/EIST/CnQ disabled and that this doesnt take into consideration the (very implicitly linked) power changes in the motherboard and ram.
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True but those don't make the CPU give off more heat, they just add more into the case :P Also, when fully loaded EIST/C1E/CnQ don't really do anything
elitehacker said:
Does an overclocked CPU draw more power? What if you Vcore remained the same?
Click to expand...
The equation still works, just use the same values for OCd Vcore and stock Vcore
 
so an e6600 OCed to 4.0 at 1.65v:

=70*(4000/2400)*((1.65-1.3)^2)= 188w of heat given off

wait, is this watts of heat given off or watts of power used?
 
Close. 65 * (4000 / 2400) * (1.65 / 1.3)^2 = 174.5

It's the maximum amount of thermal power the heatsink has to be able to dissipate, so yes the amount of heat it gives off.
 
so with an E6600 at 4.0 and 1.65v: (ambient + (C/W x CPU watt output))= CPU Temp

a tuniq tower at .2 C/W and 30C ambient would get 64C CPU temp?

and a vigor monsoon at .13C/W and 30c ambient would get 53C CPU temp?

and a custon water cooled system at .05C/W and 30C ambient would get 39C CPU temp?


those temps seem really nice, is this how it works?
 
It looks like you have it right too me. That's at 30C ambient as well, with a cooler room temps would be better.
 
wait, that cant be right.

you could theoretically reach world records with a .05 C/W, observe:
http://valid.x86-secret.com/show_oc.php?id=156036

OCed TDP = 70*(5400/2400)*((1.76-1.3)^2) = 289w of heat given off

289w x .05C/W = 15C + 30C = 45C load of the world record with .05C/W water cooling


that really cant be right, is it? they used liquid nitrogen...

is it just a matter of having the right parts? am i missing something?
 
Where do you see the Vcore? I don't know what they used for that overclock, but it was probably N2. But they would have had it running much colder than 45C, if that is the right load temperature.
 
Well, not everyone can reach that kind of overclock, there's more to it than just bumping Vcore and frequency. Plus it's complete useless to anyone who wants to actually use their system. Look at the picture of their setup and tell me what you see.
 
LN2 setups are always crazy lol, but with custom watercooling at .05C/W your system is easily usable.

so with .05C/W custom watercooling that can be reached? i dont really see the point of Liquid nitrogen then

i mean if you experiment and get it all right, you can get that OC at under 50C at .05C/W, i dont get it
 
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why, with watercooled CPU, NB, and SB with an ambient temp at 30 its calculated to 48C with .05C/W at 5400mhz and 1.76v

whats the problem? what am i missing?
 
The biggest thing is that more than just the CPU and chipset heat up.

In that N2 cooled picture, the CPU is running at -100.4 or possibly -108.4. So you don't need it to reach that kind of overclock.
 
Then go for it :)

It's really not that difficult to do, you just need the right combination of parts.
 
i will maybe this summer! i am just very shocked to see why people go LN2 and vapochill instead of permanent custom watercooling for so a ton much less

i will make a new thread soon with a list of parts, prices, and all these equations and numbers to show the potential for enthusiasts
 
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