Ugh that's so bad looking, they didn't even use heat shrink.
But I still don't get why a diode, are they using it for the minor voltage drop it gives? If that's the case they might as well just use a resistor. I don't see how a rectifier would do anything to a dc current other than drop it minorly.
Using a diode doesn't create extra heat like a resistor would. That picture was also just to show what it looked like before new heat shrink was applied. Here's a picture with new heat shrink applied.
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Using a diode doesn't create extra heat like a resistor would. That picture was also just to show what it looked like before new heat shrink was applied. Here's a picture with new heat shrink applied.
Least they had the sense to heat shrink it.
Also I'm not sure what you mean, a diode creates the exact same heat as a resistor of equal resistance would. When voltage drops from resistance it's because it's being turned into heat whether it's in a resistor or the forward voltage drop of a diode.
Like they say in science class, energy cannot be created or destroyed, simply changed to another form.
Also I'm not sure what you mean, a diode creates the exact same heat as a resistor of equal resistance would. When voltage drops from resistance it's because it's being turned into heat whether it's in a resistor or the forward voltage drop of a diode.
Like they say in science class, energy cannot be created or destroyed, simply changed to another form.
I was going off of what the OP said in the thread I got the picture from. Here is what he wrote in his post.
Also, unlike transistor-based fan controller or a resistor-based adapter, there is no heat generated from this one.
I'm not good with electricity and energy transference so I'm just basing this information off what I found in this thread. I don't actually know myself how a diode works, just that it does
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Quote from TheFieldZy »
Nobody's perfect, so neither is Hannah Montana Linux, but it's pretty great.
Quote from BC_Programming on Operating Systems »
They all suck. They just suck differently. Sort of like prostitutes.
I'm not good with electricity and energy transference so I'm just basing this information off what I found in this thread. I don't actually know myself how a diode works, just that it does
Not sure what he means really, guess it doesn't matter which one you use as long as it works. Diode just seems kinda redundant and uncontrolled since you're basing its resistance on what the forward voltage drop of the diode is.
a diode will add additional heat, as the diode itself will not be 100% perfect and convert some Watt into heat..
its just suchs a small amount for 12V it does not really matter.
also, The forward Voltage drop should be around the 0.7V on average, which is not really all that of a big deal.
So if I'm getting this right, a resistor would cause a larger voltage drop than a diode? IIRC the problem with the pumps is that the grinding noise occurs when the pump is running at the full 12V, it just needs to be running at a little less voltage to get rid of the noise.
So if I'm getting this right, a resistor would cause a larger voltage drop than a diode? IIRC the problem with the pumps is that the grinding noise occurs when the pump is running at the full 12V, it just needs to be running at a little less voltage to get rid of the noise.
Resistors come in many different resistance ratings(designated by ohms.) You could get one that gives the same voltage drop as the diode, or more or less. Resistors are kinda like water pipes, you can choose the diameter.
Technically not all diodes give a 0.7v drop, that's just a common number.
I personally wouldn't play around with the voltage on something like this, but that is just me.
Lowering the voltage is actually pretty safe, raising the voltage isn't. The worst thing that happens at low voltage is components don't turn on.
Although to be fair in this case we're talking about the water pump for a PC so it receiving low voltage might cause it to either not pump at all or pump little enough to cause the CPU to overheat. Then again! The computer would shut itself off before any heat damage was done to the CPU so I guess it's all rather redundant.
Lowering the voltage is actually pretty safe, raising the voltage isn't. The worst thing that happens at low voltage is components don't turn on.
Although to be fair in this case we're talking about the water pump for a PC so it receiving low voltage might cause it to either not pump at all or pump little enough to cause the CPU to overheat. Then again! The computer would shut itself off before any heat damage was done to the CPU so I guess it's all rather redundant.
Damn you modern technology, why do you have so many redundancies against stupid behavior/failure!
Damn you modern technology, why do you have so many redundancies against stupid behavior/failure!
Speaking of modern technology, why aren't modular power supply cables standardized? They all plug into the same things, yet the end that plugs into the power supply isn't the same for all models. Just why?
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Quote from TheFieldZy »
Nobody's perfect, so neither is Hannah Montana Linux, but it's pretty great.
Quote from BC_Programming on Operating Systems »
They all suck. They just suck differently. Sort of like prostitutes.
Speaking of modern technology, why aren't modular power supply cables standardized? They all plug into the same things, yet the end that plugs into the power supply isn't the same for all models. Just why?
Manufacturing the separate plugs is more expensive than just soldering them to the board. Solder is pretty much dirt cheap, while making the plugs, and putting the wires in the plugs (many places did this by hand, I don't think machines have fully taken over here yet), the costs add up quickly.
It's a significant enough expense to where you can't really with how costs are.
The return/profit on PSUs is already near nothing.
Speaking of modern technology, why aren't modular power supply cables standardized? They all plug into the same things, yet the end that plugs into the power supply isn't the same for all models. Just why?
We can't decide on how to transmit TV or power in different countries yet hell even within the same country they use different power standards. Standard PSU cables is a little ways off.
Using a diode doesn't create extra heat like a resistor would. That picture was also just to show what it looked like before new heat shrink was applied. Here's a picture with new heat shrink applied.
Least they had the sense to heat shrink it.
Also I'm not sure what you mean, a diode creates the exact same heat as a resistor of equal resistance would. When voltage drops from resistance it's because it's being turned into heat whether it's in a resistor or the forward voltage drop of a diode.
Like they say in science class, energy cannot be created or destroyed, simply changed to another form.
I was going off of what the OP said in the thread I got the picture from. Here is what he wrote in his post.
Here is the link to the thread: http://www.overclock.net/t/1236923/corsair-h100-h80-h60-noise-grinding-pump-fix-official-corsair-response
I'm not good with electricity and energy transference so I'm just basing this information off what I found in this thread. I don't actually know myself how a diode works, just that it does
Not sure what he means really, guess it doesn't matter which one you use as long as it works. Diode just seems kinda redundant and uncontrolled since you're basing its resistance on what the forward voltage drop of the diode is.
The point was that the guy is using a diode instead of a resistor to do the job of a resistor.
So if I'm getting this right, a resistor would cause a larger voltage drop than a diode? IIRC the problem with the pumps is that the grinding noise occurs when the pump is running at the full 12V, it just needs to be running at a little less voltage to get rid of the noise.
Resistors come in many different resistance ratings(designated by ohms.) You could get one that gives the same voltage drop as the diode, or more or less. Resistors are kinda like water pipes, you can choose the diameter.
Technically not all diodes give a 0.7v drop, that's just a common number.
Lowering the voltage is actually pretty safe, raising the voltage isn't. The worst thing that happens at low voltage is components don't turn on.
Although to be fair in this case we're talking about the water pump for a PC so it receiving low voltage might cause it to either not pump at all or pump little enough to cause the CPU to overheat. Then again! The computer would shut itself off before any heat damage was done to the CPU so I guess it's all rather redundant.
Speaking of modern technology, why aren't modular power supply cables standardized? They all plug into the same things, yet the end that plugs into the power supply isn't the same for all models. Just why?
It's a significant enough expense to where you can't really with how costs are.
The return/profit on PSUs is already near nothing.
We can't decide on how to transmit TV or power in different countries yet hell even within the same country they use different power standards. Standard PSU cables is a little ways off.