790FXB-M2RSH Bios modding??

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10-23-2008, 06:57 AM
Oese

790FXB-M2RSH Bios modding??

Hey Guys,

although I do not have this board, i'm highly interested in things going on with those DFI boards.

On Forumdeluxx Germany, some ppl are trying to mod the m2rsh bios to get access to the cpu nb-vid via modbin. All they found was these options:

Memory VDDQ
Memorty VTT
CPU VDDC

NPT Vid content

do you have any thoughts on this?

Another issue: Someone found out that there was a plastic foil under the heatpipe assembly of his DFI JR and his nb thus went to 80°C easily... Any experience with this over here as well?

pic: http://www.abload.de/image.php?img=100_3371qwz.jpg

:shocked:
10-23-2008, 09:40 AM
justapost

Hossa, that explains why some boards have such high temps. Will check the JR at work next week, but i'm pretty sure i'll find such a foil. :up:

Thought VDDC is VCore = VID * factor + offset. Can be it's the factor or offset part also. BKDG refers to VCore as VDD i think.
10-23-2008, 01:21 PM
Oese

lol, 80°C would make me think as well xD

and yeah, i thought no cpu-nb option between them.. perhaps they do not show vddc because its the result of the other options.

whatever, nb-vid option would be nice..
10-23-2008, 01:45 PM
justapost

Quote:

Originally Posted by Oese

lol, 80°C would make me think as well xD

I never tried because i had the 790FX before which had similar chipset temps and i tried to reseat the cooler with AS5 without benefits there.

Quote:

Originally Posted by Oese

and yeah, i thought no cpu-nb option between them.. perhaps they do not show vddc because its the result of the other options.

whatever, nb-vid option would be nice..

I found abit of info on german wikipedia related to VDDQ, seems to be same as vDIMM.
10-23-2008, 01:50 PM
philbrown23

well just dont ask ket to mod them as people on this forum are already flamiong the crap out of him for modding other bios.
10-23-2008, 04:34 PM
Jaivan

Quote:

Originally Posted by Oese

Hey Guys,

although I do not have this board, i'm highly interested in things going on with those DFI boards.

On Forumdeluxx Germany, some ppl are trying to mod the m2rsh bios to get access to the cpu nb-vid via modbin. All they found was these options:

Memory VDDQ
Memorty VTT
CPU VDDC

NPT Vid content

do you have any thoughts on this?

Another issue: Someone found out that there was a plastic foil under the heatpipe assembly of his DFI JR and his nb thus went to 80°C easily... Any experience with this over here as well?

pic: http://www.abload.de/image.php?img=100_3371qwz.jpg

:shocked:

I would be very interested in this kinda scared to go over 1.5V on my board because of the imc.
10-23-2008, 04:43 PM
Brother Esau

Buy one for Polygon @ RebelsHaven and no doubt old boy will be so thankful you will get your Modded Bios ;)

On Forumdeluxx Germany>>>>>>. Find -=Merlin=- and buy him one and he will also Mod Bios both of your 2 choices in People are excellent
10-23-2008, 10:17 PM
Oese

Merlin unfortunately now long was not seen there. I know him from dfi nf4 times and we tried to convince him to take a look at the cfx bios.

But he as well seems to be a bit tired of all those people that want mods from him.. whatever, worth a try. I'll pm him.. Thanks campbell!

@ jaivan: do you think cpu-nb vid is indeed coupled to vcore? that would be better i think then no adjustment at all. i'm not sure and as i dont have this board.. in theory one must measure all the phases on the cpu side. if all are the same in case of a set vcore of say 1,4, i think chances are good that nb and vcore are the same. I think its a single dedicated phase for nb as well as on the other boards?

@ justapost: yeah, when talking about grafics cards, i think vddq is often used in this sense... :D
10-23-2008, 10:55 PM
unkn0wnhacka

what the fock... that plastic crap better not be on my heatsink.. i just spend days building this computer and now i gotta take it apart?

what program should i use to detect that temp? AOD?
are these ok? :)
I put my Corsair Dominator ram cooler on my pwm area LOL

http://i36.tinypic.com/ofyjp1.jpg
10-23-2008, 11:55 PM
nuts24

If you check my post here http://www.xtremesystems.org/forums/...d.php?t=205598 and look at the bottom of the 2nd picture you will see my systemp temp and chipset temp. This program was on the disk that came with the motherbaord and its called Smart Guareian.
10-24-2008, 02:23 AM
justapost

Quote:

Originally Posted by Oese

@ justapost: yeah, when talking about grafics cards, i think vddq is often used in this sense... :D

Found an interesting part in the BKDG
http://www.abload.de/img/bkdg-powersu3.jpg
10-24-2008, 02:54 AM
JWilson

Is the bios chip on this board soldered in like the Junior is?

Thnx in advance :)
10-24-2008, 04:00 AM
Oese

@ justapost: many thx! thats very helpful.

so one would have to look for vddnb. if it isnt there, it seems to be an single-plane platform.. one could check that through voltage measurements as well it seems..
10-24-2008, 07:15 AM
Brother Esau

Quote:

Originally Posted by JWilson

Is the bios chip on this board soldered in like the Junior is?

Thnx in advance :)

No its not Jwilson:)
10-30-2008, 01:26 PM
justapost

Quote:

Originally Posted by Oese

Another issue: Someone found out that there was a plastic foil under the heatpipe assembly of his DFI JR and his nb thus went to 80°C easily... Any experience with this over here as well?

pic: http://www.abload.de/image.php?img=100_3371qwz.jpg
:shocked:

Picked up the DFI JR from work and looked for that foil. Found one removed it and i get the exact same chipset temps. :shrug:
Guess it's save to use the DFI with a condom. :p:
10-30-2008, 05:05 PM
Jaivan

Quote:

Originally Posted by Oese

Merlin unfortunately now long was not seen there. I know him from dfi nf4 times and we tried to convince him to take a look at the cfx bios.

But he as well seems to be a bit tired of all those people that want mods from him.. whatever, worth a try. I'll pm him.. Thanks campbell!

@ jaivan: do you think cpu-nb vid is indeed coupled to vcore? that would be better i think then no adjustment at all. i'm not sure and as i dont have this board.. in theory one must measure all the phases on the cpu side. if all are the same in case of a set vcore of say 1,4, i think chances are good that nb and vcore are the same. I think its a single dedicated phase for nb as well as on the other boards?

@ justapost: yeah, when talking about grafics cards, i think vddq is often used in this sense... :D

You might be right it might explain why I cannot overclock my NB that much.
10-30-2008, 05:13 PM
Oese

Quote:

Originally Posted by justapost

Picked up the DFI JR from work and looked for that foil. Found one removed it and i get the exact same chipset temps. :shrug:
Guess it's save to use the DFI with a condom. :p:

:rofl: :ROTF: and whats about pwm?

Quote:

Originally Posted by Jaivan

You might be right it might explain why I cannot overclock my NB that much.

mmh you mean too little or too much voltage?

-=by merlin=- unfortunaly didnt answer..
10-30-2008, 07:12 PM
justapost

Quote:

Originally Posted by Oese

:rofl: :ROTF: and whats about pwm?

sry, meant pwm. Tested with 9850BE at 2.8GHz/1.425V. Ran CoreDamage for 15minutes. In both tests the pwm temps where ~56°C with CPU temps ~60°C. Did test in a case and used the XIG for aircooling. Also had the passive chipset heatsink mounted. Can be that heatsink's improvements superposes the foil improvements.
10-31-2008, 12:06 AM
Oese

ok but 56°C is ok for the pwms I think..

BTW NEW BIOS OUT FOR M2RSH

Major Reasons of Change:
1、 Added CPU_NB_VID Item.

:banana:

2、 fixed can not invoke Onboard RAID when use ATI 4870x2 & 3870x2 display card(Added Raid Invoke mode Item).
10-31-2008, 05:36 AM
Aussie FX

Quote:

Originally Posted by justapost

Guess it's save to use the DFI with a condom. :p:

:ROTF::up:
10-31-2008, 07:10 AM
felix_w

Quote:

Originally Posted by Oese

ok but 56°C is ok for the pwms I think..

BTW NEW BIOS OUT FOR M2RSH

Major Reasons of Change:
1、 Added CPU_NB_VID Item.

:banana:

2、 fixed can not invoke Onboard RAID when use ATI 4870x2 & 3870x2 display card(Added Raid Invoke mode Item).

Oese, where exactly are these stated? DFI's 9/30 says only

Quote:

Major Reasons of Change:
Fixed Chipset Temperature detected error.

I couldn't find anything else
10-31-2008, 09:19 AM
pershoot

Quote:

Originally Posted by felix_w

Oese, where exactly are these stated? DFI's 9/30 says only

I couldn't find anything else

http://www.dfi.com.tw/Support/Downlo...FLAG=B&SITE=US
10-31-2008, 10:23 AM
Oese

its a beta.. :D
10-31-2008, 01:52 PM
xPliziT

Yeah i feeeeel the beta....................

Latest beta doesnt recognize my areca anymore, fyi
Flashing back to beta 09/19 everything works fine.

Besides that does anyone know what parameters to use for the NB-VID???????

It say between 00-79 or so in BIOS. What the heck does it mean.
10-31-2008, 07:13 PM
pershoot

Quote:

Originally Posted by xPliziT

Yeah i feeeeel the beta....................

Latest beta doesnt recognize my areca anymore, fyi
Flashing back to beta 09/19 everything works fine.

Besides that does anyone know what parameters to use for the NB-VID???????

It say between 00-79 or so in BIOS. What the heck does it mean.

HEX = Volts HEX = Volts
00 = 1.5500 14 = 1.3000
01 = 1.5375 15 = 1.2875
02 = 1.5250 16 = 1.2750
03 = 1.5125 17 = 1.2625
04 = 1.5000 18 = 1.2500
05 = 1.4875 19 = 1.2375
06 = 1.4750 1A = 1.2250
07 = 1.4625 1B = 1.2125
08 = 1.4500 1C = 1.2000
09 = 1.4375 1D = 1.1875
0A = 1.4250 1E = 1.1750
0B = 1.4125 1F = 1.1625
0C = 1.4000 20 = 1.1500
0D = 1.3875 21 = 1.1375
0E = 1.3750 22 = 1.1250
0F = 1.3625 23 = 1.1125
10 = 1.3500 24 = 1.1000
11 = 1.3375 25 = 1.0875
12 = 1.3250 26 = 1.0750
13 = 1.3125 27 = 1.0625
10-31-2008, 07:16 PM
demonkevy666

Quote:

Originally Posted by justapost

Found an interesting part in the BKDG
http://www.abload.de/img/bkdg-powersu3.jpg

interesting post the asus m3a79-t has that cpu vdda.
11-01-2008, 04:37 AM
xPliziT

Quote:

Originally Posted by pershoot

HEX = Volts HEX = Volts
00 = 1.5500 14 = 1.3000
01 = 1.5375 15 = 1.2875
02 = 1.5250 16 = 1.2750
03 = 1.5125 17 = 1.2625
04 = 1.5000 18 = 1.2500
05 = 1.4875 19 = 1.2375
06 = 1.4750 1A = 1.2250
07 = 1.4625 1B = 1.2125
08 = 1.4500 1C = 1.2000
09 = 1.4375 1D = 1.1875
0A = 1.4250 1E = 1.1750
0B = 1.4125 1F = 1.1625
0C = 1.4000 20 = 1.1500
0D = 1.3875 21 = 1.1375
0E = 1.3750 22 = 1.1250
0F = 1.3625 23 = 1.1125
10 = 1.3500 24 = 1.1000
11 = 1.3375 25 = 1.0875
12 = 1.3250 26 = 1.0750
13 = 1.3125 27 = 1.0625

Thx for the nice table!
But lol if i remember correctly the BIOS showed 00 as default for NB-Vid which would mean 1.55V ??

If this is the default value its quite high hehe
11-01-2008, 05:09 AM
pershoot

mine showed default of 14 (which is 1.3) after setting optimised defaults. try reflashing and clearing cmos for a few minutes, then setting optimised defaults.
11-01-2008, 10:42 AM
gOtVoltage

Yes 1.55v is correct Default (00)

Quote:

Originally Posted by xPliziT

Thx for the nice table!
But lol if i remember correctly the BIOS showed 00 as default for NB-Vid which would mean 1.55V ??

If this is the default value its quite high hehe

Its the Same as my BIOSTAR TA770 Bios Hex settings ...(00) = 1.55vid default for both CPU/NB...

That the powerplanes at full range...When Overclocking and not using CnQ you can achieve nice overclocks,,provided you have good Air/Water cooling.

You can Lower the NBvid lower than CPUvid but not the other way around..So if you set NBvid to (14) = 1.3vid and slowly raise up when you raise your CPUclocks you can find your sweetspot...usually these clock best with Both Vids being the Same or NBvid slightly lower for less NBheat.

Note:
Some Bioses will default to (00) and some will auto tune it to the Cpu ID spec...Ive found running the CPU Vid high(1.45vid works best for going over 3.4ghz..All 780/790gx/790fx/sb750 have 1.55vid as the High power plane limit..Lots of Bioses default to (00) with hex adjustment.

Remember when you set the NB vid will also set the (CPU 1voltage setting higher) than what it sets for the NBvid value..Also if you try to set CPU lower than NB you cant..Its a VID safety feature..

With water i run 1.55vid for Both and Add xtra Vcore if need to CPU only. Up to 1.48vid for CPU i can achieve 3.45ghz with the Asus 79-T ..have also tested with lower Nbvid and Cpuvid but then cant clock as high...The best is to have Both the Same and or have the CPU a few VID settings higher than Nbvid @ any volt range..My max is 3.52ghz with 1.55vid fo both= 1.69volts:D

You Bios Options i wish the 79-T had...darn AMI bioses....If i remeber correct your Bios should be Phenix/Award..which is nice to use..I have to raise the VDD to make VID goe up...So to find the VID range that works its not as easy as typing (00):yepp:

By the way nice work with that thing..
11-03-2008, 07:50 PM
pershoot

10/30
http://us.dfi.com.tw/Upload/BIOS/R7SDA30.ZIP

source: http://us.dfi.com.tw/Support/Downloa...FLAG=B&SITE=DE
11-04-2008, 11:51 PM
Aussie FX

I just bought the board.
What's with the warning about Auto Boost and flashing?

I haven't looked at Auto Boost yet.
Is there something unusual we need to be careful of here when flashing?
Thanks foe the link, I couldn't find any new bios on the .tw site. ;)
11-05-2008, 12:22 AM
mongoled

Quote:

Originally Posted by gOtVoltage

You can Lower the NBvid lower than CPUvid but not the other way around

Remember when you set the NB vid will also set the (CPU 1voltage setting higher) than what it sets for the NBvid value..Also if you try to set CPU lower than NB you cant..Its a VID safety feature..

Just picking the key points from gOtVoltage post regarding NBvid and CPUvid.

The following question, is for motherboards that instead of using 'traditional settings' for CPUvid, i.e. directly choosing the voltage you want, use the mV increments to raise voltage.

How does the the NBvid effect the CPUvid on these motherboards?

For example, on my SB750 DFI FX mobo, I have set the NBvid to 0A = 1.4250 and set the CPU Special VID to 'Auto'.

My CPU voltage is showing in CPU-Z as 1.344, in AOD CPUvid Target Voltage is 1.300v and Current Voltage is 1.300v

So either NBvid is on this mobo (beta bios 10/30) is not being applied correctly, or you CAN lower the NBvid lower than the CPUvid...

If I am missing something here, please let me know!

:p:

Hope someone can provide some input regarding this....
11-05-2008, 03:18 AM
Aussie FX

Quote:

Originally Posted by pershoot

HEX = Volts HEX = Volts
00 = 1.5500 14 = 1.3000
01 = 1.5375 15 = 1.2875
02 = 1.5250 16 = 1.2750
03 = 1.5125 17 = 1.2625
04 = 1.5000 18 = 1.2500
05 = 1.4875 19 = 1.2375
06 = 1.4750 1A = 1.2250
07 = 1.4625 1B = 1.2125
08 = 1.4500 1C = 1.2000
09 = 1.4375 1D = 1.1875
0A = 1.4250 1E = 1.1750
0B = 1.4125 1F = 1.1625
0C = 1.4000 20 = 1.1500
0D = 1.3875 21 = 1.1375
0E = 1.3750 22 = 1.1250
0F = 1.3625 23 = 1.1125
10 = 1.3500 24 = 1.1000
11 = 1.3375 25 = 1.0875
12 = 1.3250 26 = 1.0750
13 = 1.3125 27 = 1.0625

pershoot.
Thanks for that it's very helpful.
Do you have a similar table for frequency?

I really needed to learn hex, alas calculators weren't around when I went to school. ;)
11-05-2008, 03:35 AM
nuts24

DFI have updated there beta bios http://us.dfi.com.tw/Support/Downloa...FLAG=B&SITE=US

Major Reasons of Change:
1、Added CPU NB Clock Ratio Item for Phenom CPU OC.
2、Added CPU Host/HTT Adjust Gap Item.
3、fixed over 12G will hang in USB initial.

Added CPU_NB_VID Item.
11-05-2008, 04:31 AM
Aussie FX

Guys what is the procedure for flashing this board.
I see the big warning sign and I'm not sure what they mean.
11-05-2008, 05:33 AM
nuts24

As far as I know it’s not needed for flashing. That massage is just saying if you are going to use there OC program you need the most up to date files. I download the files meant for updating your Bios via a floppy disk & put them on a Dos bootable USB stick. I have had no problems up dating my Bios this way. If you have made any changes in your Bios then save them to one of the back up banks. Up date your bios, shut down your PC, reset the CMOS battery, and turn on your PC, go into Bios screen, load default values, shut down PC, reboot PC back into Bios screen and then load up your saved settings. Then you should have no problems and a better working board. This worked for me.
11-05-2008, 08:29 AM
Aussie FX

Thanks nuts.
I just wasn't sure after seeing those warnings.

DFI's website can be a pain sometimes. Chinese doesn't translate to English very well, so occasionally it looks like gobbledygook. ;)
11-05-2008, 08:38 AM
nuts24

no problem, I have just up dated my board to bios R7SDA30, so far no problems. :)
11-05-2008, 08:53 AM
pershoot

Quote:

Originally Posted by Aussie FX

pershoot.
Thanks for that it's very helpful.
Do you have a similar table for frequency?

I really needed to learn hex, alas calculators weren't around when I went to school. ;)

hex to dec. frequency of NB?

00 = 4x
01 = 5x
02 = 6x
03 = 7x
04 = 8x
05 = 9x
06 = 10x
07 = 11x
08 = 12x
09 = 13x
0A = 14x
0B = 15x
0C = 16x
0D = 17x
0E = 18x
0F = 19x
10 = 20x

hex to dec. for cpu clock ratio

01 = 8.5x
02 = 9x
03 = 9.5x
04 = 10x
05 = 10.5x
06 = 11x
07 = 11.5x
08 = 12x
09 = 12.5x
0A = 13x
0B = 13.5x
0C = 14x
0D = 14.5x
0E = 15x
0F = 15.5x
10 = 16x
11 = 16.5x
12 = 17x
13 = 17.5x
14 = 18x
15 = 18.5x
16 = 19x
17 = 19.5x
18 = 20x
19 = 20.5x
1A = 21x
1B = 21.5x
1C = 22x
1D = 22.5x
1E = 23x
1F = 23.5x
20 = 24x
21 = 24.5x
22 = 25x
23 = 25.5x
24 = 26x
25 = 26.5x
26 = 27x
27 = 27.5x
28 = 28x
29 = 28.5x
2A = 29x
2B = 29.5x
2C = 30x
2D = 30.5x
2E = 31x
2F = 31.5x
11-05-2008, 11:56 PM
Aussie FX

Thanks for taking the time, it is now all written down in hard copy. :up:
I tried searching for it but all I could find is sites trying to teach hex. I just want to oc the cpu...:)
11-06-2008, 05:24 AM
Aussie FX

Quote:

Originally Posted by nuts24

no problem, I have just up dated my board to bios R7SDA30, so far no problems. :)

After trials and tribulation I'm finally on 30/10.
It seems to be nice and stable for me too.
The shutdown issue I had has gone, I searched DFI forums and the G15 keyboard appeared to be the culprit.

The problems I had flashing was making the bootable usb stick. I re downloaded the file and it was ok the 2nd time. The 1st time the file must have been corrupted in the download process.
11-10-2008, 11:50 PM
mongoled

Quote:

Originally Posted by mongoled

Just picking the key points from gOtVoltage post regarding NBvid and CPUvid.

The following question, is for motherboards that instead of using 'traditional settings' for CPUvid, i.e. directly choosing the voltage you want, use the mV increments to raise voltage.

How does the the NBvid effect the CPUvid on these motherboards?

For example, on my SB750 DFI FX mobo, I have set the NBvid to 0A = 1.4250 and set the CPU Special VID to 'Auto'.

My CPU voltage is showing in CPU-Z as 1.344, in AOD CPUvid Target Voltage is 1.300v and Current Voltage is 1.300v

So either NBvid is on this mobo (beta bios 10/30) is not being applied correctly, or you CAN lower the NBvid lower than the CPUvid...

If I am missing something here, please let me know!

:p:

Hope someone can provide some input regarding this....

Yeah, pretty sad I am quoting my own post, but I think its kind of important in understanding whats happening when we adjust these settings.

So it would be great if peeps could post their findings to what I asked above.

My 790FXB-M2RS when adjusting nbVID higher than cpuVID DOES NOT push cpuVID higher than nbVID.

To be more precise, in bios I am setting CPU-NB Vid to 0E = 1.375. CPU Special VID is on auto.

When I boot into windows AOD and CPU-Z are telling me that cpuVID is 1.3volts, should this not be equal or more than nbVID???

Is this what other peeps are seeing?

Also ive seen it already mentioned in this thread, we still havnt found a solid answer to what CPU VDDC is. All I can see is that by adjusting other settings in bios, no change is shown in its value in AOD.

Hope some peeps will recognise the importance of determining what these are and how we can manipulate these.............

- EDIT -

Also does anyone know what Mem VTT controls?

- EDIT -

Mem VTT = SB PLL 1.2V Voltage

http://www.xtremesystems.org/forums/...38#post3421438
11-11-2008, 11:29 AM
gOtVoltage

Quote:

Originally Posted by mongoled

Yeah, pretty sad I am quoting my own post, but I think its kind of important in understanding whats happening when we adjust these settings.

So it would be great if peeps could post their findings to what I asked above.

My 790FXB-M2RS when adjusting nbVID higher than cpuVID DOES NOT push cpuVID higher than nbVID.

To be more precise, in bios I am setting CPU-NB Vid to 0E = 1.375. CPU Special VID is on auto.

When I boot into windows AOD and CPU-Z are telling me that cpuVID is 1.3volts, should this not be equal or more than nbVID???

Is this what other peeps are seeing?

Also ive seen it already mentioned in this thread, we still havnt found a solid answer to what CPU VDDC is. All I can see is that by adjusting other settings in bios, no change is shown in its value in AOD.

Hope some peeps will recognise the importance of determining what these are and how we can manipulate these.............

- EDIT -

Also does anyone know what Mem VTT controls?

- EDIT -

Mem VTT = SB PLL 1.2V Voltage

http://www.xtremesystems.org/forums/...38#post3421438

Hmm maybe the Bios is not 100% compatable using AOD and the VID/vdd corectly or ACC is manipulating it?

Looks like AUTO is setting what ever it likes...So With Stock vcore for both CPU/NB Try setting 1.3vid on cpu then enter 1.35vid on NB .
It should bump the CPUvid value in Bios or not let you set the NBvid above the cpuvid value...

From what ive seen on the 79-T and GX..
Remeber some Mobos auto raise the VID if you raise the Vcore values.
NBvid will always be the same or lower than the CPUvid..You can run CPUvid to 1.55v and the NBvid will stay @1.3vid if set to 1.3vid..

Now if you raise the NBvid to 1.4vid ,,it will automatically adjust the CPU VID to value of the same or .015vid higer..So if NBvid = 1.4vid the CPUvid will become 1.4vid or slightly higher...The way AMD phenom is designed it can not allow the NBvid to be higher than the CPUvid at any time...If you ever max the CPUvid and NBvid the CPUVID/volts will always be Higher.

Hope that simplifies what your seeing in AOD for ya.

Note:
i dont have VTT setting so i wont coment much,, i believe is the base volt for ram like how VDD works for CPU...From what ive researched with other Mobos ,,leaving at default value is best..You should only raise the Ram Volts to Ram spec volt or higher if you Overclock Ram like crazy.
11-11-2008, 01:16 PM
pershoot

I had no issue setting nb vid higher then cpu vid on old 790fx-m2r and the same is true for this board.

That looks to be correct behavior and independant voltage manipulation is allowed.
11-11-2008, 11:23 PM
mongoled

Quote:

Originally Posted by gOtVoltage

NBvid will always be the same or lower than the CPUvid..
The way AMD phenom is designed it can not allow the NBvid to be higher than the CPUvid at any time...
If you ever max the CPUvid and NBvid the CPUVID/volts will always be Higher.

Thanks for the feedback gOtVoltage, the statements I have highlighted above, are these factual, or something that you have worked out during your time working with these motherboards?

I am asking as it seems the DFI mobos are not obeying these rules.

Either the DFI are showing wrong readings via AOD or your statements are not entirely valid.

Quote:

Originally Posted by pershoot

I had no issue setting nb vid higher then cpu vid on old 790fx-m2r and the same is true for this board.

That looks to be correct behavior and independant voltage manipulation is allowed.

Thanks for chirping in pershoot with this info, so this is another DFI mobo that doesnt seem to be following the characteristcs that gOtVoltage has pointed out.

If we can pindown exactly what is going on here, well to a relative degree, we may all be able to get better overclocks, in a more efficient manner....
11-11-2008, 11:50 PM
gOtVoltage

The Biostar TA770 and the ASUS 79-T both do this with my 9600BE and 9950BE...

DFI is know to have very independant settings ..
From what ive seen and read the NBvid is suppose to stay the same or Lower than the CPUvid but both Vcor for CPU/NB can be raise independant of each other...

The way Bioses are for SB750 with ACC it dosnt surprize me if they work different for different Mobos with the Same chip set...I know its not the IMC but Mobo Chipset related in Bios. My Biostars TA770 and GX3(sent back) i used Hexadecimal for VIDs and was able to adjust how i descrbed with the 79-T..NBvid could not be Higher than CPUvid.

My current VIDs @3.52mhz 79-T screenie below,,

if i set VDD to max and the VCORs to Max i get 1.55vid for both and the CPU goes to 1.72volts and the NB goes to 1.65volts max..

http://i168.photobucket.com/albums/u...PUvidNBvid.jpg

Note: ive even seen some Mobos including my old TA770 have the Default VID @1.55 for both CPU and NB with hexadecimal settings by default in Bios .. At rebels haven we did a good 80pages of Ta testing with Headecimal modded into Bios..Also the GX and GX3 has it too..

TA770SE+ thread,, lots of VID responses from lots of users..
http://www.rebelshavenforum.com/sis-...;t=000014;p=85

790GX thread with simalar results,,
http://www.rebelshavenforum.com/sis-...5;t=000164;p=1

Youll have to dig but there is lots of info..the Bioses stock and tweaked by poygon...Ive tested the TA770 all...GX/GX3 just a few with simalar VID function before my Mobo went poof,,Bad PWM's ...So i exchanged it for the ASUS 79-T since the DFi790BX wasnt out yet,,Trust me 100plus bios swaps Checking and running the Highest possiable Voltage with Phenom dosnt go by to fast.
Im still using the same 9600BE and 9950 ATM.:D

Despite Bios bugs the phenom has evolved nicely for 65nm:D
A Propper Bios works wonders for Phenom..
11-12-2008, 09:08 AM
Oese

damn nb-vid and cpu-vid readouts in that everest overclocking tab are obviously wrong with my DFI M2R (that is default 1,05v with cnq even cpu-vid is 1,4v and 1,3v nb-vid as i set 1,4v in bios xD). I suppose it has something to do with that "other" vid setting mechanism DFI uses in order to get that special vid add to work...
11-13-2008, 05:38 AM
Aussie FX

I can't set nb VID in AOD on mine, it just resets back to 1.3.

I can't find nb VID option in bios to try that.

Mongoled IIRC I could set nb VID higher than cpu VID on my GBT 790GP. Not 100% sure though.

My bloody shutdown problem has resurfaced. It really wants to turn off and then at the last millisecond............. it restarts. :(
11-13-2008, 11:52 AM
pershoot

Quote:

Originally Posted by Aussie FX

I can't set nb VID in AOD on mine, it just resets back to 1.3.

I can't find nb VID option in bios to try that.

Mongoled IIRC I could set nb VID higher than cpu VID on my GBT 790GP. Not 100% sure though.

My bloody shutdown problem has resurfaced. It really wants to turn off and then at the last millisecond............. it restarts. :(

nb vid is in hex under genie->cpu. u need to have f9 advanced enabled to see it. i posted the hex values earlier in this thread i believe.
11-20-2008, 11:42 PM
mongoled

@ gOtVoltage and Aussie FX

thanks for that feedback, looks like some boards do behave differently with regards to NBvid and CPUvid

Still havnt figured out what CPU VDDC does, LOL :p:
11-21-2008, 03:13 AM
Aussie FX

Quote:

Originally Posted by pershoot

nb vid is in hex under genie->cpu. u need to have f9 advanced enabled to see it. i posted the hex values earlier in this thread i believe.

You're right, I swear last time I looked it wasn't there. :eek:
I must have mis-hit the F9 key.
Set at 1.45v now. No wonder I was getting crashes with 2.4ghz nb speed. ;)
11-29-2008, 09:43 AM
mongoled

New Beta Bios available

Hey guys there is a new beta bios up

:)

http://www.dfi.com.tw/portal/CM/cmpr...rue&itemId=539

Have not tested, have to go home, so sometime next week will fire it up

Also 10/30 been made official

http://www.dfi.com.tw/portal/CM/cmpr...rue&itemId=539
11-29-2008, 12:21 PM
pershoot

Quote:

Originally Posted by mongoled

Hey guys there is a new beta bios up

:)

http://www.dfi.com.tw/portal/CM/cmpr...rue&itemId=539

Have not tested, have to go home, so sometime next week will fire it up

Also 10/30 been made official

http://www.dfi.com.tw/portal/CM/cmpr...rue&itemId=539

11/15 beta seems fine.

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