Friendly reminder overclocking can be bad

you can't just focus on silicon Uber, think of all the other components involved and the solder itself. I've seen solder points come apart in a lot of car audio components. Just curious, but where did you get your engineering degree?
 
Monkey_feces said:
but it seems that swapping my dvi cable for my vga cable fixed the artifacting.
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rofflecakes.

I've had that happen - wierd little dots and stuff onscreen. Fortunately for me, the cable was the first thing I checked, and the plug was just a little loose on the card.

I think it's safe to say that the next time, that'll be the first thing you check. ;)
 
p.s. my 7900GS has been running 681 core (with a 1.5v voltmod) and 800/1600 (no voltmods) on the ram with the stock cooler (though this Leadtek has a better stock cooler than most) for the last seven months.
 
markintosh13 said:
rofflecakes.

I've had that happen - wierd little dots and stuff onscreen. Fortunately for me, the cable was the first thing I checked, and the plug was just a little loose on the card.

I think it's safe to say that the next time, that'll be the first thing you check. ;)
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Truly, you are smarter than all of the physics professors posting in this thread.
Me: I'm getting artifacts
Professors: It seems that the silicon parts are more prone to deterioration and the voltage regulators don't help at all.
Me:?
You: Check the cable.
Me:Thnx
 
Uberhitzung said:
I can't be wrong because I am simply making a statement of pure physics.

You, on the otherhand, are making a PURELY SPECULATIVE LEAP into the obviously UNKNOWN.

Plain and simple. You state.

overclocking, that is, increasing the speed at which a cricuit operate can potentially damage the circuit strictly based on the "it wasn't meant to go that fast" theory.

Too many holes unfortunately. I will stick with VERIFIED physics. If it was "clocked too fast" then it "going too fast" would have to cause excess heat internally.

On Planet earth, "fastness" does not alter the physical properties of metals, HEAT DOES.

Elements have melting/boiling points. Physically, they should remain unaltered unless those limits are reached. Over time prolonged heat will slowly alter a chip, however, "going fast to the extreme" will not have any affect outside of Earth Physics.

we aren't talking about the mars rovers are we?
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I didn't make the statements you are attributing to me. Please show me where those quotes are in my post.

But, if you want me to cite more references on what I DID post:

http://www.hardocp.com/article.html?art=MjMw

And if you read further into the Wiki I posted that you said actually refutes what I said, you'd find this....

Overclocking of processors, especially when using higher than nominal voltage, causes electromigration between their transistors and significantly shortens the chips' lifetime.

Electromigration can be a cause of degradation in some power semiconductor devices such as low voltage power MOSFETs, in which the lateral current flow through the source contact metallisation (often aluminium) can reach the critical current densities during overload conditions. The degradation of the aluminium layer causes an increase in on-state resistance, and can eventually lead to complete failure.

It does say "especially when using higher than nominal voltage" but especially does not exclude overclocking without voltage modifications.
 
LoneWolf said:
I didn't make the statements you are attributing to me. Please show me where those quotes are in my post.

But, if you want me to cite more references on what I DID post:

http://www.hardocp.com/article.html?art=MjMw

And if you read further into the Wiki I posted that you said actually refutes what I said, you'd find this....

Overclocking of processors, especially when using higher than nominal voltage, causes electromigration between their transistors and significantly shortens the chips' lifetime.

Electromigration can be a cause of degradation in some power semiconductor devices such as low voltage power MOSFETs, in which the lateral current flow through the source contact metallisation (often aluminium) can reach the critical current densities during overload conditions. The degradation of the aluminium layer causes an increase in on-state resistance, and can eventually lead to complete failure.

It does say "especially when using higher than nominal voltage" but especially does not exclude overclocking without voltage modifications.
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Its okay just let em go. People got their piece of paper that says they know everything about everything and are never wrong even when all laws of physics prove them wrong and laws of science, they are right.
 
Vashypooh said:
Its okay just let em go. People got their piece of paper that says they know everything about everything and are never wrong even when all laws of physics prove them wrong and laws of science, they are right.
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i have a piece of paper that says 'i o u 1 edumacation'

aka = comp technologist

still can't find the any key.
 
Monkey_feces said:
Truly, you are smarter than all of the physics professors posting in this thread.
Me: I'm getting artifacts
Professors: It seems that the silicon parts are more prone to deterioration and the voltage regulators don't help at all.
Me:?
You: Check the cable.
Me:Thnx
Click to expand...

That's awesome:D

Glad to hear you found the problem..
 
Monkey_feces said:
Truly, you are smarter than all of the physics professors posting in this thread.
Me: I'm getting artifacts
Professors: It seems that the silicon parts are more prone to deterioration and the voltage regulators don't help at all.
Me:?
You: Check the cable.
Me:Thnx
Click to expand...
Hey don't make fun of us, we thought your card was dead as a door nail.. .:D
 
Vashypooh said:
Its okay just let em go. People got their piece of paper that says they know everything about everything and are never wrong even when all laws of physics prove them wrong and laws of science, they are right.
Click to expand...
Yup, and it's depressing to know that no matter how far humanity advances in terms of technology, there will always be idiots who somehow manage to delude themselves into believing their own self-provided misinformation...and they can vote.
 
Vashypooh said:
Take the heat sink off of your CPU and get back to me.

Heat death can and will occur in solid state electronics. Over clocking does shorten the lifespan of a processor down from the ~10 years they will receive. Anyone thats taken basic electronics understand the fundamental issues with temperatures relation to the circuitry such as wires resistance varying at multiple temperatures.
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Been there and done that on pre-K7 AMD CPUs. Powered on with no heatsink for 10 minutes, then turned off and let them cool down for half hour. Powered it back up, and everything checked out fine, in fact 2 of those CPUs still runs to this day.

Silicon is doped and the metal layers deposited at ridiculously high temperatures... hot enough to generate a plasma. You're not going to achieve said temperatures unless you feed the CPU several thousands volts at several amps. More likely the death will be due to the SMD components melting, which are prolly rated up to several hundred degrees. This is why when your fan fails, the processor isn't permanently damaged. The heatsink can still dissapate all that heat, just not at an operating temperature domain.

The mere 90C that you can generate via overclocking sensibly is insignificant compared to that.

The reason why silicon dies from normal wear and tear is because of "hot carrier effects". The electrons and holes collide with ions and knocks them into places they shouldn't be. This create a space charge imbalance and the device characteristic is altered as a result. Note that this is a function of the electric field intensity (more specifically, the average kinetic energy of the electron) which is dominated by voltage and not temperature.
 
Laminator said:
Yup, and it's depressing to know that no matter how far humanity advances in terms of technology, there will always be idiots who somehow manage to delude themselves into believing their own self-provided misinformation...and they can vote.
Click to expand...

What's worse is their need to be right (whether you are or not) to the point of insulting to attempt to try and prove your superiority through some insecure need to measure up. That kind of attitude alone is enough to make me discount any argument; it's hard to believe someone has the education and intelligence to be right when all they have to end with the equivalent of "Nyah nyah!"

Uberhitzung said:
WHERE DID YOU LEARN TO READ?

totally fcking owned there
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"I hope it feels so good to be right. There is nothing more exhilarating than pointing out the shortcomings of others, is there?" -Randal, Clerks
 
physics proffessors? where?

I don't see any actual Processor Engineers in here from AMD, Intel, or nVidia.

seems like this thread was founded on "speculative information"

Unfortunately, it will always remain just that.

Purely Speculative... Summarized, "wrong"
 
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