*** DFI nF4 Ultra-D CPU VID Selection Table ***

**Cornelious0_0** · 05-19-2005, 11:17 PM

Well, I was remarkably bored, and decided to do the math, I've used it a fair bit already just playing around...enjoy.

**Minstadave** · 05-19-2005, 11:31 PM

You were bored

Make the table a .gif will make it look alot less compressed

**Cornelious0_0** · 05-19-2005, 11:40 PM

Originally Posted by Minstadave

You were bored

Make the table a .gif will make it look alot less compressed

Possibly......fine enough for now I figured....just excel.

**eva2000** · 05-19-2005, 11:52 PM

Very nice

**Ubermann** · 05-20-2005, 12:07 AM

Charts and all kinda tables gets done when people have nothing to do =)
Very nice one!

**ADM** · 05-20-2005, 12:11 AM

That might come in very handy! Very nice.

**Trevor** · 05-20-2005, 01:27 AM

If you get bored again you may have to test each one

since the dfi undervolts, 1.375*110% for me is 1.504

**[timko]** · 05-20-2005, 01:37 AM

Originally Posted by Cornelious0_0

Well, I was remarkably bored, and decided to do the math, I've used it a fair bit already just playing around...enjoy.

http://img272.echo.cx/img272/7046/untitled8qf.jpg

I made a similar one a while back

http://forums.overclockers.co.uk/sho...&postcount=161

Here's a handy table that I quickly built up in Excel...

Left hand side is the setting for "CPU VID Control"
Top row is for "CPU VID Special Control"
Actual voltage it works out as is in the middle.

For quick reference...

Green is 1 to 1.399
Yellow is 1.4 to 1.599
Pink is 1.6 to 2.125

**[timko]** · 05-20-2005, 01:39 AM

Originally Posted by Trevor

since the dfi undervolts, 1.375*110% for me is 1.504

This happens on pretty much everyone's board. The voltage displayed whilst in the BIOS will tend to drop 0.01v or 0.02v once you get into Windows and use programs like SmartGuardian or MBM5 to view the vcore voltage

**funkflix** · 05-20-2005, 02:38 AM

If u messure the Vcore with multimeter, the Voltages are nearly the same as the calculated Voltages in the tables!

**Cornelious0_0** · 05-21-2005, 04:31 AM

Originally Posted by GravediggA

If u messure the Vcore with multimeter, the Voltages are nearly the same as the calculated Voltages in the tables!

So then it's just like trying to use software to monitor your PSU's rails? Just wondering, 'cus I too have noticed this....1.55v x 113% for example calculates to 1.7515v.....but I get 1.696v in CPU-Z, you sayin' that it still IS closer to 1.75?

**^don.k's^** · 05-21-2005, 04:34 AM

Originally Posted by GravediggA

If u messure the Vcore with multimeter, the Voltages are nearly the same as the calculated Voltages in the tables!

Are you sure!?

Though smart guardian-Bios took good readings about the voltage and that only the board was undervolting...

**Kosmic71** · 05-21-2005, 06:56 AM

This is a few readings with cpuz. My board undervolt in a big way compared to what I get into Windows.

1.50v 1.225 x 123% 1.440v (cpuz)
1.51v 1.375 x 110% 1.456v (cpuz)
1.52v 1.350 x 113% 1.472v (cpuz)
1.53v 1.125 x 136% 1.472v (cpuz)
1.54v 1.400 x 110% 1.488v (cpuz)
1.55v 1.375 x 113% 1.504v (cpuz)
1.56v 1.175 x 113% 1.504v (cpuz)
1.57v 1.525 x 104% 1.520v (cpuz)
1.58v 1.400 x 113% 1.536v (cpuz)
1.59v 1.450 x 110% 1.536v (cpuz)
1.60v 1.275 x 126% 1.552v (cpuz)
1.61v 1.425 x 113% 1.552v (cpuz)
1.62v 1.475 x 110% 1.568v (cpuz)
1.63v 1.200 x 136% 1.568v (cpuz)
1.64v 1.450 x 113% 1.584v (cpuz)
1.65v 1.500 x 110% 1.600v (cpuz)
1.66v 1.350 x 123% 1.600v (cpuz)
1.67v 1.325 x 126% 1.616v (cpuz)
1.68v 1.525 x 110% 1.632v (cpuz)
1.69v 1.375 x 123% 1.632v (cpuz)
1.70v 1.250 x 136% 1.648v (cpuz)
1.71v 1.550 x 110% 1.648v (cpuz)

Do you guys getting the same?

**Snark42** · 05-21-2005, 07:21 AM

*sigh*

I had made a similar table except I took the time to organize them (using Excel) from lowest voltage to highest voltage. It was beautiful. I printed several copies and then........had some bad luck with RAM and ended up reformatting (after I got new RAM) and put a fresh install of XP on. So, I still have the table I made, but only in paper form. I've got a digital camera, so I'll try taking a pic with it....just wish i had a scanner.

**Cornelious0_0** · 05-21-2005, 08:34 AM

Originally Posted by Kosmic71

Do you guys getting the same?

Yes, can't say I've tried every one of those settings on the stock cooler thus far, but the ones I have tried match up with your numbers fairly well.

I don't/haven't been using the table to see what voltages I'm applying necessarily, I've been using it to see what the next and smallest voltage increase is when I'm overclocking, so that I dont end up giving it more power then it needs...still struggling with temps on the box HSF.

**Snark42** · 05-21-2005, 09:44 AM

I took a picture and it turnewd out alright. I sized it down a bit, but it's still ike 400KB. Can anyone else host this? I dont think photobucket will like all the bandwidth use.

http://img.photobucket.com/albums/v4...ltagetable.jpg

You'll notice the voltages are in order from lowest voltage to highest voltage, this lets you increase the voltage very slightly without having to do all the math yourself.

**Ubermann** · 05-21-2005, 09:48 AM

So now we have 3 different volt tables on 2 days =))

**Techwarrior** · 05-21-2005, 03:15 PM

Thanks a lot, Cornelious. This is STICKY worthy!

**Cornelious0_0** · 05-21-2005, 03:37 PM

Originally Posted by Ubermann

So now we have 3 different volt tables on 2 days =))

We do, but I really don't care for that one a whole lot.....I'm not trying to be a jerk, I just prefer the style I used where it's just like a multiplication table...I could color code it somehow to make it more reader friendly, but i think it's still simplest to just match up numbers like we did back in grade school.

**Techwarrior** · 05-21-2005, 04:03 PM

Originally Posted by Cornelious0_0

We do, but I really don't care for that one a whole lot.....I'm not trying to be a jerk, I just prefer the style I used where it's just like a multiplication table...I could color code it somehow to make it more reader friendly, but i think it's still simplest to just match up numbers like we did back in grade school.

Yo it's good it's good! I printed it up right away and it's now posted on my wall until I get a good binder.

**Cornelious0_0** · 05-22-2005, 07:14 AM

Originally Posted by Techwarrior

Yo it's good it's good! I printed it up right away and it's now posted on my wall until I get a good binder.

Glad to be of service.

**Snark42** · 05-22-2005, 12:51 PM

I think all 3 of us deserve a Gold Star! XD XD

**burningrave101** · 05-24-2005, 06:17 PM

Nice table Cornelious, this will make things even quicker then using a calculator

.

**kiwi** · 06-25-2005, 03:39 AM

Originally Posted by burningrave101

Nice table Cornelious, this will make things even quicker then using a calculator

.

I think DFI should include this auto calculator option in BIOS.

**breakfromyou** · 08-27-2006, 12:33 AM

i made a program for my TI-83 Plus that helped me out a bit. you input a voltage to start out with (vid) and it lists what all the different +%'s would be. too bad my batteries got real low and i tried playing a game. that led to a RAM reset

Thread: * DFI nF4 Ultra-D CPU VID Selection Table *

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