Asus P5K "Vanilla" vmods

[Learn]

You should You have alot to bring to the game

I post
Mesure the v-mch and fsbvtt with the lower setting in the bios.
I don't need the v-mch mod, never done (no need) i can't confirm anything.
/upper post edited

[funkflix]

Hmm, will change my mod then too!

Is there any Vfsb mod out there and anyone knows what exactly does Vfsb do?

[|RickY|]

the max v-core i can give on my p5k is 1.92v more and it shut down, any ovp mod or somthing? have you guys tested max v-core you can give on windows?

thanks

[DEVIL K-ce]

the max v-core i can give on my p5k is 1.92v more and it shut down, any ovp mod or somthing? have you guys tested max v-core you can give on windows?

thanks

1.96V @ boot or set in windows. 1.97V = shutdown

Martin

[Learn]

Hmm, will change my mod then too!

Is there any Vfsb mod out there and anyone knows what exactly does Vfsb do?

With my E6400 and E6600 it doesn't help, but the GTLREF seems important with the quad core.

Interesting Article about: Adjusting A/GTL+ Levels for Increased FSB Signaling Margins and Overclocking

Some tests done today:

Config:
P5K (v-core, v-droop, v-ddr2, v-cpupll/southbridge/sata)
Revision 1.02G
BIOS 0603
E6600 388 x 9 1:1
v-ddr2: 2.2v
v-core: 1.38v

FSB VTT in the BIOS | DMM | GTLREF
AUTO | 1.55v | 0.99v
1.20v | 1.55v | 0.99v
1.30v | 1.33v | 0.85v
1.40v | 1.44v | 0.92v
1.50v | 1.55v | 0.99v

v-MCH in the bios | DMM | Heatpipe Temp*
AUTO | 1.58v |
1.25v | 1.58v | 50.8°C (+/- 0.4°C)
1.40v | 1.43v | 44.3°C (+/- 0.4°C)
1.55v | 1.58v | 50.9°C (+/- 0.4°C)
1.70v | 1.73v | 56.9°C (+/- 0.4°C)


Now with the v-mod (FSBVTT & GTLREF), VR set at 14K Omhs

FSB VTT in the BIOS | DMM | GTLREF
AUTO | n/a | n/a
1.20v | 1.65v | 1.06v
1.30v | 1.43v | 0.91v
1.40v | 1.54v | 0.98v
1.50v | 1.65v | 1.06v

FSB VTT set at 1.20v in the BIOS and V-MCH set at 1.25v in the bios = odd


read points GTLREF
read points FSB VTT post #51

* Digital thermometer + good probe in the heatpipe (top of P35 in the heatpipe),Noiseblocker SE2 @ 7v for the 4X512MB and

heatpipe. Temp after 15 minutes of Prime95 25.3 FFT 1024.

the max v-core i can give on my p5k is 1.92v more and it shut down, any ovp mod or somthing? have you guys tested max v-core you can give on windows?

thanks

I can take a look the next week.

[|RickY|]

awsome, thanks

[funkflix]

With my E6400 and E6600 it doesn't help, but the GTLREF seems important with the quad core.

Interesting Article about: Adjusting A/GTL+ Levels for Increased FSB Signaling Margins and Overclocking

Some tests done today:

Config:
P5K (v-core, v-droop, v-ddr2, v-cpupll/southbridge/sata)
Revision 1.02G
BIOS 0603
E6600 388 x 9 1:1
v-ddr2: 2.2v
v-core: 1.38v

FSB VTT in the BIOS | DMM | GTLREF
AUTO | 1.55v | 0.99v
1.20v | 1.55v | 0.99v
1.30v | 1.33v | 0.85v
1.40v | 1.44v | 0.92v
1.50v | 1.55v | 0.99v

v-MCH in the bios | DMM | Heatpipe Temp*
AUTO | 1.58v |
1.25v | 1.58v | 50.8°C (+/- 0.4°C)
1.40v | 1.43v | 44.3°C (+/- 0.4°C)
1.55v | 1.58v | 50.9°C (+/- 0.4°C)
1.70v | 1.73v | 56.9°C (+/- 0.4°C)


Now with the v-mod (FSBVTT & GTLREF), VR set at 14K Omhs

FSB VTT in the BIOS | DMM | GTLREF
AUTO | n/a | n/a
1.20v | 1.65v | 1.06v
1.30v | 1.43v | 0.91v
1.40v | 1.54v | 0.98v
1.50v | 1.65v | 1.06v

FSB VTT set at 1.20v in the BIOS and V-MCH set at 1.25v in the bios = odd

http://www.overclocking-jp.eu/public/vmods/100_6878.jpg
read points GTLREF
read points FSB VTT post #51

* Digital thermometer + good probe in the heatpipe (top of P35 in the heatpipe),Noiseblocker SE2 @ 7v for the 4X512MB and

heatpipe. Temp after 15 minutes of Prime95 25.3 FFT 1024.



I can take a look the next week.

Thanks a lot for your good explanation!

The same "feature" with the Vmch is on the P5B Deluxe too! Auto = 1,7xV...

[|RickY|]

well ovp must be pin11 to ground :



thanks to jonny bravo, http://www.ocxtreme.org/forumenus/showthread.php?t=1153

[|RickY|]

well.. it's being hard to find a spot to solder... i'v insulated my p5k with nail varnish :S it hard to check with multimeter lol

[arvardai]

Pencil mod vdrop P5K SE?

[CCC]

Any confirmed Pencil Vdrop mod? Thanks

EDit: I did this pencil mod and it works prefectly.

been out of the xtreme modding seen for a while and i just ordered this board to go with my Q6600 G0, you just use a pencil on top of the part shown??

[OC_Windforce]

well ovp must be pin11 to ground :



thanks to jonny bravo, http://www.ocxtreme.org/forumenus/showthread.php?t=1153

Pencil MOD possible? pin11 (250Kohm)

[|RickY|]

it must be. my board are stupidy insulated with nail varnish it's being hard to make some reads...

1: can you please read resistênce between pin 11 and ground?

2: can you find a spot that have 0 ohm resistênce to pin 11?

it must be connect an pot with res= (1) between that spot (2)and ground

or find the smd resist. that make the resistênce you read on (1) and pencil it

i think, maybe wrong

[BeardyMan]

Strange the vdroop isn't working for me
Pencil mod that is....

Btw are the mods at teh first post all correct and working? wil try them tommorow

[cadaveca]

vDroop pencil working fine here.

[Learn]

well ovp must be pin11 to ground :

http://i10.tinypic.com/5zblp2q.jpg

thanks to jonny bravo, http://www.ocxtreme.org/forumenus/showthread.php?t=1153

This one works. link

Config:
P5K
Revision 1.02G
BIOS 0603
vcore: 1.7bios
vdroop: pencil
E6600: vid mod, 1.40625v.

I removed the 681 Ohms resistor for testing the vmod.


With 165 Ohms: (and with the vdroop)


After 2.040v in the BIOS, 2.07/2.08v (DMM)


After 2.040v, no monitoring (maybe 2.1v DMM)


In parallel you need something like 217 Ohms for 2v in the bios (with the vdroop) so, 5k or 2k or 1k Ohms can do the job. PWM get really hot (my insulation on the back of the PWM melted! , CPU under 2 stages cascade, beware.

[Johnny Bravo]

So are you saying that you can solder say a 1Kohm variable resistor in parallel with the 681ohm resistor in the pic and this will "fool" the DAC ?

[LagunaX]

vDroop pencil working fine here.

Me too. 1.46v set in bios, 1.44-1.45v real under orthos for me on my p5k. B4 with 1.5v set in bios it would droop to 1.38v under orthos. This is with an e6750es @ 3.6ghz...

[|RickY|]

thanks for info i'v cheked the 681ohm resistor has 20 ohm to ground from 1 side and 700 to ground on the other side, must be just solder 1k or so to ground on 700ohm side
or solder in paralel on that resistor.

i'm a litle confuzed, it will be needed vid mod on cpu? you just talk on this mod and vdroop mod, why no v-core mod? you substitute vcore mod by vid mod on cpu?

realy thanks

[Learn]

So are you saying that you can solder say a 1Kohm variable resistor in parallel with the 681ohm resistor in the pic and this will "fool" the DAC ?

It seems to be working just fine. (i can't say more, there is nothing on the "typical application circuit" in the datasheet for that pin.

thanks for info i'v cheked the 681ohm resistor has 20 ohm to ground from 1 side and 700 to ground on the other side, must be just solder 1k or so to ground on 700ohm side
or solder in paralel on that resistor.

i'm a litle confuzed, it will be needed vid mod on cpu? you just talk on this mod and vdroop mod, why no v-core mod? you substitute vcore mod by vid mod on cpu?

realy thanks

Solder a wire on each red points to your VR (set at 1000 Ohms) then decrease the resistance.
No need VID mod.
For the vdroop it is much better with, but it's not needed.
Do not use the other vcore mod, only that mod (without OVP).
That vcore mod only work when you set over 1.6000v in the bios.

(when i hit 2.10v (DMM) the monitoring say 0.024v)

PS: and thx to the dude of the pic (link on my previous post)

Again, lot of vcore = dangerous, beware.
Voila

[|RickY|]

i'll tryit soon

have you tryed to enter windows @ more than 1.92v ? i can get more than 1.92v on bios but not on windows, the max i try was 1.96v on bios ok but when it enters windows, restart.

[Learn]

I tryed 2.02v, it was OK.

[|RickY|]

cool, so it's an alternative v-core mod. i'll tryit very soon, thanks can you point-me to what fets and chips overheat?

thanks

[Learn]

The "phase without heatsink". Pic1 Pic2 Pic3 Pic4 (big)
I'll add some heatsink for the next serious bench meeting

[|RickY|]

for me worked good too