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View Full Version : What is DDR VVT ?

microfire
06-25-05, 09:45 AM
Red arrow, what is the DDR VVT reading for? The high and low is extreme, just like my Vcore :(

http://img147.echo.cx/img147/9571/ddrvvt4hg.jpg (http://img147.echo.cx/img147/9571/ddrvvt4hg.jpg)
{PMS}fishy
06-25-05, 11:01 AM
DDR VTT is supose to be 1/2 of vDIMM. Im not 100% sure fo what it does, but I can tell you if it does not track well with vDIMM, that you will have a much lower memory overclock.

Something doesn't seem right with that MB, if infact it is an AI7. You should be much closer to 1.5-1.6v. Check it in uGURU. Mine tracks perfectly.

Are you having any stability issues?
apu318
06-25-05, 12:52 PM
A lot of Abit boards have VERY poor VVT tracking. VVT is supposed to be half of your VDIMM. If you try and raise your memory voltage, it will not increase, it'll just be very unstable if you can get it to boot at all. My KV8 Max 3 wasn't able to get past 2.8v. Thank god I got that because my memory needs 2.8v to run stock.
{PMS}fishy
06-25-05, 05:27 PM
A lot of Abit boards have VERY poor VVT tracking. VVT is supposed to be half of your VDIMM. If you try and raise your memory voltage, it will not increase, it'll just be very unstable if you can get it to boot at all. My KV8 Max 3 wasn't able to get past 2.8v. Thank god I got that because my memory needs 2.8v to run stock.

Not the AI7. I have one and it tracks all the way to 3.7v which was the max vDIMM I could get out of the MB.
microfire
06-25-05, 09:13 PM
lol, you people misread. VVT not VTT.

I to also have the AI7, and it tracks VTT perfectly.

Though according to Motherboard monitor (and the lastest cpuZ) the high/low will droop, the range being .1v, which is very bad.

VVT ?
{PMS}fishy
06-25-05, 10:29 PM
lol, you people misread. VVT not VTT.

I to also have the AI7, and it tracks VTT perfectly.

Though according to Motherboard monitor (and the lastest cpuZ) the high/low will droop, the range being .1v, which is very bad.

VVT ?

Your right, I did. I have no idea what VVT is.
microfire
06-25-05, 11:07 PM
Sorry, I meant to say in the above qoute, my Vcore does droop according to MBM and lastest cpuZ.
I think most people thought the AI7 does not Vcore droop, standard Uguru software does not show this. I believe the AI7 does need a Vdroop mod, would be nice if there was an easy fix.

Yeah, VVT, stable 1.5v at idle, but moves alot when under load.