[Neuromancer]

On CPUs it is STILL about hte wattage though. From what I understand current does not change, they arelimited to specific amount, to get more power to a chip you raise the volts to raise the total wattage supplied. So yes, more volts does help.

I always though that wattage was constant and that lowering voltage meant that more current was needed, but was informed by a couple of reputable, and some not so reputable people that it is not the case.

[Chuchnit]

Originally Posted by Neuromancer

On CPUs it is STILL about hte wattage though. From what I understand current does not change, they arelimited to specific amount, to get more power to a chip you raise the volts to raise the total wattage supplied. So yes, more volts does help.

I always though that wattage was constant and that lowering voltage meant that more current was needed, but was informed by a couple of reputable, and some not so reputable people that it is not the case.

How it more current not used? If you do any other electrical crap, and use too small of a wire, you will pull extra amps.

[Witchdoctor]

Voltage is the electrical pressure in a circuit
Amperes (amps) are the measure of electrical current in a circuit
Ohms are the measurements of resistance in a circuit
Current is essentially how fast electrons are moving in a circuit
Resistance is what impedes the electrical current, and can be found in the wire or various loads in a circuit

Hope this helps

[Neuromancer]

I am not sure I understand it myself, simple electrical theory is easy to understand, wattage is the product of current and voltage. But CPUs work on a different formula because it functions like a variable resistor.

From what I could figure out when it was explained that I was wrong that undervolting does not damage a processor because the current is limited. Otherwise undervolting would require an increase in Amperage to meet the wattage requirement to handle the work required.

Last time I looked there was no amperage setting in DrMOS chips, only voltage adjustments, so I do believe that I was informed correctly. I am no CE/EE though but I tried perusing the documents linked to teach me about the current limitations. I have also read up some techdocs on DrMOS chips, but it is quite possible that my ignorance is not helping the situation despite my attempts to learn otherwise.




But back to your question, and I think I understand this enough although it really is guesswork for me.

Extra AMPs ARE drawn and that is why most VRM's will have some type of OCP installed on motherboards and video cards, however this refers to current supplied to the power conditioning system not hte CPU itself.

DrMOS (driver controlled MOS) allows us to change the voltage that outputs from the FETs to the CPU/GPU, northbridge or whatever. They are designed to release voltage at a specific current level. Good thing we cant control current actually I would have torched up a lot more chips with that option

[Neuromancer]

Originally Posted by Witchdoctor

Voltage is the electrical pressure in a circuit
Amperes (amps) are the measure of electrical current in a circuit
Ohms are the measurements of resistance in a circuit
Current is essentially how fast electrons are moving in a circuit
Resistance is what impedes the electrical current, and can be found in the wire or various loads in a circuit

Hope this helps

I always remember that bit from running scared

Danny Costanzo: [driving their car on the El tracks] Try not to scrape the third rail, OK? There's about 600 volts in there.
Ray Hughes: It's not the voltage that gets you. It's the amps.
Danny: How many amps are in it?
Ray: Enough to Push a ****ing train!

[Witchdoctor]

All I was saying in a nut shell to the OP is if the PS he was using was not suppling the proper amont of power the card may not clock as well as if it was being provided the correct amount of power ....

I used a dimmer as an example of something we can control is all

Basic apply resistance remove resistance was the easiest metphore I could think of

The physics behind electrical current are not my fotay so to speak

But I think that is why the OP got better results with the break out box