Ok in the softmenu setup on my friend's IP35E I see the following:

Voltages Control
CPU Core Voltage
DDR2 Voltage
CPU VTT Voltage
ICH 1.50V Voltage
MCH 1.25V Voltage
CPU GTLREF

1. Which setting corresponds to the FSB Voltage setting on other motherboards? Is it the MCH Voltage? But some motherboards have settings for both North Bridge and FSB Voltage..
2. I've read on forums that anything beyond 1.38V will damage the lifespan of a E8XX processor. But some other forums state that the voltage that's actually harmful is the FSB Voltage not Vcore. Which is it?

Thanks to anyone who can shed some light on this..

CPU core voltage controls the voltage of the processor meanwhile the MCH voltage controls the NB P35 chipset

Well anything beyond a certain spec is damaging to the system without any repercussions to heat handling.. from i can perceive from your statement i believe its the Vcore for the 45nm E8x00, Vmch at that voltage can damage the system too

Yep, i understand what Vcore and Vmch do. I'm trying to figure out Vfsb as a couple other mobos i've used actually have 'Vfsb' as a setting, but the IP35E does not..

I thought vfsb and vmch were common in 965P chipsets, not really P35?

well like i said, i give u a definition and u figure out what it does, in abit its simple.

Well thanks, but your answer is a bit terpesong.
I'm asking about Vfsb, not Vcore and Vmch as your reply..

Also, ignore my 2nd question. Intel design docs state the Vcore wall for E8XXX procs to be 1.45v.

but in ip35e there is no stated Vfsb... in which i am stating to you the definition of both Vcore and Vmch, so you would fit in your definition of Vfsb to either one of it.. goodness.

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Added on July 14, 2008, 4:59 pmfrom what i have heard and read, Vfsb can be related to Vmch or the Vtt. I dont normally touch the Vtt but often hike my Vmch up during the OCing.

Vfsb = Vtt voltage..u don see both options in a motherboard

Haha I understand your point, thing is I'm not satisfied cos other motherboards have all 3 settings - Vcore, Vmch and Vfsb.

Yep you're right about Vfsb being related to Vmch and Vtt. I'm thinking (now) that the IP35E autocontrols Vfsb as a function of Vmch and Vtt..

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Added on July 14, 2008, 5:09 pmOhh thanks kucingfight. Grr. Ok next question - what's the Vtt wall for a E8xxx proc? =p

it shall be 1.4v for both vtt and vcore

MADNESS pls don mislead ppl with your statements.

VTT should be kept @ minimal...it's not really helpful to a certain extent

i second that, relak la kucing

vtt is helpful at minimal levels on 45nm intel processors.

however, vtt will help stabilize 65nm to some extent, its usually best to leave vtt, vfsb, cpu pll (this is a killer) volts to minimal or stock, unless you like to run 500 fsb and above

Vtt is not to be touched unless you know what youre doing, so goes for stuff that youre not familiar with. Normally u keep those values at stock below a 450~500Mhz Bus OC. More than that like what bryan says, u need to adjust those values. Hope we have answered your question on this. So from this assumption, now u can work Vtt as your Vfsb, and other variables as it is

TS asking what is the limit ma.... sorry for my noobness