P5B Deluxe Vmods

[DDTUNG]

The mods are basically the same, except for the resistor values required.

As a general rule of thumb, measure the onboard resistance(with the PSU unplugged) between the solder points and use a VR rated at roughly 20X the measured value. You know the rest.

DDTUNG

[eva2000]

I guess no one wants to share any pencil mods.

Yeah wondering about pencil mod myself too

[Gam3Ra]

Yeah wondering about pencil mod myself too

Me too

[Millyons]

the vDroop mod helps a LOT.

Without vdroop mod: (resistance= 75 Ohm)

1,55v in bios --> 1,49v idle --> 1,46v stressed

With vdroop mod: (resistance= 15 Ohm)

1,55v in bios --> 1,54v idle --> 1,54v stressed

I assume pencil mod would just be like this......penciling the resistor to 15ish Ohms

[jVIDIA]

I did the pencil vDroop mod and the results @full load are :

before : 0.07 vdroop

now : 0,005 ~0.01 vdroop

[Millyons]

what is your finnal resistance

[jVIDIA]

didn't measured it

[Gam3Ra]

Boys, please give photos for the vdroop pencil mod

[Pyr0]

???
Post #5 of this thread...
http://www.xtremesystems.org/forums/...15&postcount=5

pencil the small capacitor (top right) indicated by the vdroop mod

[icywater]

well i did the droop,vcore and mem mod. The drool and the vcore work very well
but for the mem mod. It seem to be stuck at 2.4volt (bios setting 2.45v) nothing changes. The contact of the soldier point is fine. even if i tune the pot to lower resistant, it still 2.4v .

[Inteleron]

Vmod? LOL how about a stable bios first.

[icywater]

problem fixed , i can tune vdim to 2.7 volt now. a little bit scare of feeding over 2.5v, so l leave on 2.46v

[K404]

You too? LOL yea 2.5V+ makes me nervous

[smopoim86]

If i use a pencil on the vdroop mod, will the bios report near accurate voltages? or will it be off.

[newls1]

If i use a pencil on the vdroop mod, will the bios report near accurate voltages? or will it be off.

Im wondering the same thing? Also, I cant seem to understand post #5 on how to pencil this

[K404]

Droop mods will stop/limit the amount the voltages drops under load. The only accurate voltages are DMM voltages.

My DFI 939 BIOS told me my 12V rail was 5.xV for example , just ignore BIOS readings

[Elisha]

???
Post #5 of this thread...
http://www.xtremesystems.org/forums/...15&postcount=5

pencil the small capacitor (top right) indicated by the vdroop mod

where in relations to to the whole board is that resistor located?
is it near the socket?
can someone take a pic of the full board of closer components?

[C3]

Accidently the cap where you solder the vdroop mod fell off.
Is it possible to use the board without the missing cap?
I just got a X6800 and am afraid to try it with this gem

[OnDborder]

where in relations to to the whole board is that resistor located?
is it near the socket?
can someone take a pic of the full board of closer components?

http://www.xtremesystems.org/forums/...2&postcount=26

[OnDborder]

Yeah wondering about pencil mod myself too

Did you do it?
If so, what is the result?

[Dani]

- solved

[ManagHead]

Where do you guys measure vcore?

I found it. And btw, I measured 622 ohms on the vdrop resistor - does that make sence?

[Dani]

From those black boxes, there are legs so from them you can measure Vcore.

[OnDborder]

Then use any ground point or the ones pointed out in this thread ?? http://www.xtremesystems.org/forums/...21&postcount=3

[couppi]

I did the pencil vDroop mod and the results @full load are :

before : 0.07 vdroop

now : 0,005 ~0.01 vdroop

Hmmm... Do I just take a number 2 pencil and shade it lightly? Or should I rub the hell out of it?