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If Heat Wasn't A Factor...


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After heat, what is the biggest problem facing huge overclocking? I mean, say you're in antartica using a freon cooled system... couldn't you just OC your processor to like 8Ghz?

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well, motherboards only supply so much voltage, ram has limitations, but i guess you could buy like PC5000 ram...the motherboard itself has limitations from the chipset, periferials have limitations too. to get 8ghz, the rest of the system has to keep up with the CPU.

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The PSU is the next weakest link in the chain.

 

The chipset on the MOBO uses 3.3v and the CPU power circuitry uses 12v; if either of those rails drop or if the MOSFETs cannot keep up, the rig will crash hard.

 

That's why you need to use a far stronger than minimum spec PSU when you OC.

 

The next link is the wall current itself. I NEVER run from the wall; that's like screwing around with no protection in Haiti. There ought to be a UPS between the rig and the wall so you are always running from the battery.

 

Makes life a lot easier.

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Also, you have to simply keep the chip's architecture in mind when you think about this. Certain architectures have certain limits, no matter what you do. For example, try and get an athlon xp to run above 3ghz. Go ahead...liquid nitrogen cool the thing. I'll bet you won't be able to make it much beyond 3ghz. That's simply because their architecture (namely, the ridiculously short pipe) doesn't allow for it.

 

As an extreme example, consider an old 386. Heat isn't an issue with those...they didn't even need heatsinks to run. Imagine slapping a giant heatsink and fan onto a 386. How far do you think you could oc it? I'd say probably not much farther than maybe 50 mhz or so. Heat isn't the issue...it's just the architecture.

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