Hardware

What is CPU VTT?

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# 1HERO May 3 2007, 15:01 PM
There's an option to increase the CPU VTT in .5v increments. Anyone know what it does?

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This post has been edited by Species8472: Jan 9 2008, 04:08 AM
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# 2Insider. May 3 2007, 17:06 PM
If I am not mistaken, it sets the CPU Termination Voltage. With its combination and CPU Vcore, you can achieve more higher stable clocks. Bah...its been a looonng time since I read about this. I'll try jogging my memory. Similarly though, your motherboard has a VTT too.

So, to get the best performance, just a shot in teh dark.

Uping the VTT of the motherboard, then uping the Vcore of the motherboard, then upping the CPU VTT, CPU Voltage regulator and CPU Vcore, would give you the max heat/perfromance. Too many variables, imo, but again a shot in the dark.

This post has been edited by Insider.: May 3 2007, 17:10 PM
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# 3subroutine May 3 2007, 19:39 PM
CPU VTT is the CPU termination voltage but I'm not exactly sure what this voltage setting does.There's some information here -

http://www.overclock.net/intel-motherboard...king-guide.html

It seems a CPU VTT of around 1.5v gives a higher and more stable overclock.
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# 4Species8472 May 3 2007, 21:03 PM
VTT stands for VolTage Termination??

But I dont know how it is supposed to be higher than the vcore, if you terminate a process, the voltage should be lower imo, but thats not what this is...
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# 5HERO May 3 2007, 23:05 PM
nvm.

3.6ghz under 400 mhz FSB x9 multiplier 1:1 failed horribly under all kinds of stress tests. Not to mention CoH would crash every time I boot into a game.

I'm currently running my computer @ 8x multiplier, 400 FSB, 4-4-3-5-1T RAM, 3.2ghz.

This post has been edited by HERO: May 4 2007, 04:45 AM
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# 6Trojan. May 4 2007, 00:48 AM
gg no re, always said to go 400x9...
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# 7subroutine May 4 2007, 08:04 AM
Have you tried raising the CPU VTT to gain a higher overclock ?
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# 8HERO May 4 2007, 11:57 AM
QUOTE(subroutine @ May 4 2007, 04:04 AM) *

Have you tried raising the CPU VTT to gain a higher overclock ?


The only thing CPU VTT lets me do is higher/lower my FSB VTT. I guess it has something to do with my NB voltage as well.. seeing how a higher FSB VTT will help me achieve better high FSB stability.

I could raise my ghz to 3.6 by making my multiplier 9 and boot into windows, but I need more juice from my vCore. Right now, it sits at 1.38v. No matter what I do to change it, I can't (even if I raise CPU VTT). Its really retarded. Its either 1.38v or 1.47v, there's no between.

I have ACPI BIOS Rev 0302.

This post has been edited by HERO: May 4 2007, 12:03 PM
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# 9Trojan. May 5 2007, 02:55 AM
Don't you have a P5N-E? It's a known error I think, and fixed with BIOS revisions, 602 or 902 i think.
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# 10HERO May 5 2007, 03:21 AM
QUOTE(Trojan. @ May 4 2007, 22:55 PM) *

Don't you have a P5N-E? It's a known error I think, and fixed with BIOS revisions, 602 or 902 i think.


P5N32-E SLI PLUS.
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# 11GiDeoN May 16 2007, 12:06 PM
Leave VTT on auto Hero, it stops you damaging your cpu badly by trying to o/c it too much / setting your voltages exceptionally high whistling.gif

I blew my first P5N32SLi mobo by playing with this, it's not a cheap option to mess with sad.gif (It did however get me a newer mobo / cpu)

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