Sorry, I should have specified. Those weren't 100% exact figures, but just examples to show Hurricane where he stands with his hardware. Just to show that it is generally not the case that high CPU voltage automatically means high tempteratures due to leakage and how these CPUs have shown to react since Bulldozer.
There's way too much to consider to say *** is the voltage for this OC:
Originally Posted by cssorkinman
I believe that certain motherboards underreport voltages compared to others. Hardware reviewers have noticed the same thing.
It would go a long way towards explaining differences in temps too.
Are all 3 samples on the same motherboard Computer restore? What board(s) were used?
A point I would make about Liquid cooling is that once the coolant is heat saturated - the flow rate is irrelevant, it's pretty much down to the size of the radiator and the airflow across it that determines how much cooling it can provide. All things being equal, a 240 mm radiator should have the same cooling ability regardless if its in a CLC or a custom.
I've read that certain motherboards underreport voltages as well. MSI generally having the lowest reading for both AMD and Intel base motherboards.
I've only tested on Gigabyte and ASUS boards, and voltages between both boards have been very close, given a similar quality board. (not talking 4+1 vs 8+2)
I believe there are three distinct differences between closed loop and custom water cooling.
- CPU Block to water heat transfer - which is the first saturation point - the speed that heat can be transferred into the liquid. (no matter how good your radiator is, it is limited by the effeciency of the cpu block)
AIO coolers do a good job, but because the pump is in the block, they aren't able to be as effecient as a stand alone cpu block (fins/surface area/thickness for heat transfer)
- Radiator - Being able to choose any size/type of radiator for your system as well as the shape/thickness of the fins in the radiator all effects heat transfer performance
- Resevoir - Due to the All-In-One systems being sealed it's not possible to remove all air from the system, which reduces cooling performance. (a popular mod for AIO coolers is to add a resevoir)Edited by ComputerRestore - 6/4/13 at 2:01pm