DFI NF4 Ultra - D Voltage Spectrum

[patrck17]

This post is for people like me who are doing burn ins and trying to find the best voltage timing for their processor. What I have done is taken all the voltage combinations possible for my DFI NF4 Ultra-D board (using CPU VID Control and CPU VID Special Control) to determine the minimum increments possible. I don't know if this will be useful to anyone else, but I made it as a reference, so I figure it couldn't hurt sharing. There are like 250 total different combinations so I have only included the range from 1.37v-1.8v.

EDIT: Alright guys sorry for the lame formatting, I it didn't like my tab method of spacing and this is all I could come up with.



VID Ctrl * VID Special Ctrl = Resulting Voltage

1.375-------------1.00-------------- 1.37500
1.250-------------1.10-------------- 1.37500
1.325-------------1.04-------------- 1.37800
1.125-------------1.23-------------- 1.38375
1.225-------------1.13-------------- 1.38425
1.100-------------1.26-------------- 1.38600
1.025-------------1.36-------------- 1.39400
1.050-------------1.33-------------- 1.39650
1.400-------------1.00-------------- 1.40000
1.275-------------1.10-------------- 1.40250
1.350-------------1.04-------------- 1.40400
1.250-------------1.13-------------- 1.41250
1.150-------------1.23-------------- 1.41450
1.125-------------1.26-------------- 1.41750
1.425-------------1.00-------------- 1.42500
1.050-------------1.36-------------- 1.42800
1.075-------------1.33-------------- 1.42975
1.375-------------1.04-------------- 1.43000
1.300-------------1.10-------------- 1.43000
1.275-------------1.13-------------- 1.44075
1.175-------------1.23-------------- 1.44525
1.150-------------1.26-------------- 1.44900
1.450-------------1.00-------------- 1.45000
1.400-------------1.04-------------- 1.45600
1.325-------------1.10-------------- 1.45750
1.075-------------1.36-------------- 1.46200
1.100-------------1.33-------------- 1.46300
1.300-------------1.13-------------- 1.46900
1.475-------------1.00-------------- 1.47500
1.200-------------1.23-------------- 1.47600
1.175-------------1.26-------------- 1.48050
1.425-------------1.04-------------- 1.48200
1.350-------------1.10-------------- 1.48500
1.100-------------1.36-------------- 1.49600
1.125-------------1.33-------------- 1.49625
1.325-------------1.13-------------- 1.49725
1.500-------------1.00-------------- 1.50000
1.225-------------1.23-------------- 1.50675
1.450-------------1.04-------------- 1.50800
1.200-------------1.26-------------- 1.51200
1.375-------------1.10-------------- 1.51250
1.525-------------1.00-------------- 1.52500
1.350-------------1.13-------------- 1.52550
1.150-------------1.33-------------- 1.52950
1.125-------------1.36-------------- 1.53000
1.475-------------1.04-------------- 1.53400
1.250-------------1.23-------------- 1.53750
1.400-------------1.10-------------- 1.54000
1.225-------------1.26-------------- 1.54350
1.550-------------1.00-------------- 1.55000
1.375-------------1.13-------------- 1.55375
1.500-------------1.04-------------- 1.56000
1.175-------------1.33-------------- 1.56275
1.150-------------1.36-------------- 1.56400
1.425-------------1.10-------------- 1.56750
1.275-------------1.23-------------- 1.56825
1.250-------------1.26-------------- 1.57500
1.400-------------1.13-------------- 1.58200
1.525-------------1.04-------------- 1.58600
1.450-------------1.10-------------- 1.59500
1.200-------------1.33-------------- 1.59600
1.175-------------1.36-------------- 1.59800
1.300-------------1.23-------------- 1.59900
1.275-------------1.26-------------- 1.60650
1.425-------------1.13-------------- 1.61025
1.550-------------1.04-------------- 1.61200
1.475-------------1.10-------------- 1.62250
1.225-------------1.33-------------- 1.62925
1.325-------------1.23-------------- 1.62975
1.200-------------1.36-------------- 1.63200
1.300-------------1.26-------------- 1.63800
1.450-------------1.13-------------- 1.63850
1.500-------------1.10-------------- 1.65000
1.350-------------1.23-------------- 1.66050
1.250-------------1.33-------------- 1.66250
1.225-------------1.36-------------- 1.66600
1.475-------------1.13-------------- 1.66675
1.325-------------1.26-------------- 1.66950
1.525-------------1.10-------------- 1.67750
1.375-------------1.23-------------- 1.69125
1.500-------------1.13-------------- 1.69500
1.275-------------1.33-------------- 1.69575
1.250-------------1.36-------------- 1.70000
1.350-------------1.26-------------- 1.70100
1.550-------------1.10-------------- 1.70500
1.400-------------1.23-------------- 1.72200
1.525-------------1.13-------------- 1.72325
1.300-------------1.33-------------- 1.72900
1.375-------------1.26-------------- 1.73250
1.275-------------1.36-------------- 1.73400
1.550-------------1.13-------------- 1.75150
1.425-------------1.23-------------- 1.75275
1.325-------------1.33-------------- 1.76225
1.400-------------1.26-------------- 1.76400
1.300-------------1.36-------------- 1.76800
1.450-------------1.23-------------- 1.78350
1.425-------------1.26-------------- 1.79550
1.350-------------1.33-------------- 1.79550
1.325-------------1.36-------------- 1.80200

 

[JasonE4]

Sweet! I'm probably getting an Ultra-D soon and this will save me some work.

 

[g0dM@n]

Wow, I'm surprised that no one else said thanks for this.

THANKS!

 

[Janus67]

nice post.

 

[bLack0ut]

just wondering, how long did this take ya? thanks tho, great info

 

[Super Nade]

Thanks mate!

You must however highlight the ones that actually work. Be aware that you must set the Startup VID to a reasonable number. I don't think 1.1xx-1.2xx V etc will boot.

 

[g0dM@n]

What's the whole point of having the startup one too... I don't understand why it's even there...

 

[Super Nade]

What's the whole point of having the startup one too... I don't understand why it's even there...

Startup is there to afford you the flexibility of obtaining the exact voltage you want. If you use 1.250 x 1.23 (say) and your CPU boots up at 1.3V, you can have a startup of 1.4V to ensure that you atleast POST.

 

[kukyfrope]

Yea this is awesome. Other people have done excel documents with "theoretical" voltage but the board undervolts so the reading voltage is lower. Thanks a lot!

 

[g0dM@n]

Startup is there to afford you the flexibility of obtaining the exact voltage you want. If you use 1.250 x 1.23 (say) and your CPU boots up at 1.3V, you can have a startup of 1.4V to ensure that you atleast POST.

I still see no point. Why not boot it at the voltage that you want... so 1.250x1.23 would be 1.5375v. Why not just have the PC boot at what you're gonna be using anyways? That's what I don't understand. Or does booting it at something less make the actual voltage you want more consistent.