GTL and PLL ???

cr!spy

cr!spy

cr!spy

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Joined
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Never really touched these two settings before, but got bored last night and thought I would set them both on their lowest voltage... ran Orthos for 8 hours and it passed. So would it hurt if I left them on their lowest voltage?
 
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i am no expert in the field, but if undervolted I don't understand how that would hurt? if you overvolt is when you run into trouble from my basic understanding
 
Cheers for the reply.

Not necessarily, sometimes when components are not getting enough voltage it can damage hardware too. I think it should be ok though as it passed an Orthos 8 hour test and if something wasn't getting enough voltage it would have locked up or rebooted. Would be nice if someone could clarify this though...
 
these voltages can aid reducing your vcore if tweaked accordingly.
but how you tweak them and what is safe depends on the fabrication size of your cpu.

What CPU are you running?
Dual/Quad? model?
 
Cheers for the info guys!

I'm running an E8600 @ 4.4GHz (1.36v) on an Asus P5K Premium.

Do you think it might be worth leaving them back on auto so they can adjust accordingly?
 
Is your overclock stable? Are you happy with your vcore? If so, I wouldn't bother with GTLs. It only adds more variables into the mix.
 
I've only really needed to play with the gtl settings when trying to go above 470 fsb on my e8600, and keep your PLL voltage as low as possible this is what is supposidly the biggest killer of processors especially the wolfdales, but increasing this will make higher fsb overclocks more stable.
 
Basically the motherboards VTT voltage (FSB Termination Voltage) provides a signal (i.e. 1 or 0) to all components on the motherboard, as you increase FSB frequency you "skew" this signal and therefore components (most notably your CPU which is most sensitive) can not judge what is a 1 or a 0. To some extent this can be compensated by increasing the voltage of the VTT and therefore generating a stronger signal however CPU especially 45nm are very intolerant of high VTT and degrade quickly. Simply put GTL reference voltages allow you to set a "margin of error" i.e. move what the CPU considers a 1 or 0 and therefore cut out instability
 
Cheers for the imput guys.

So keeping both the GTL and PLL on their lowest settings would not cause any trouble as long as the overclock was stable?
 
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