GeForce MX440se 64MB

[LittleDevil]

Hi guys, i have searched a lot for these mods, but i haven't found them. I have GeForce 4 MX440se 64Mb.

http://www.slo-volt-mod.com/slike/GF4/IMG_0209.jpg
http://www.slo-volt-mod.com/slike/GF4/IMG_0210.jpg

tnx

[persivore]

Can you tell me what is written on the two chips I have circled please.

[LittleDevil]

Pv25az
Lm324m

[persivore]

The LM324 is probably the voltage regulator on the card. Can you tell me what the voltages at the points I have marked are please.

[DeltZ]

lol i had one of these...piece of crap :P

[snq]

Try these:
http://www.vr-zone.com/guides/NVIDIA/MX440VMod/
http://www.techsweden.org/forum/viewtopic.php?p=34637#34637 (swedish)

[LittleDevil]

http://www.slo-volt-mod.com/slike/GF4/IMG_0219.JPG

[persivore]

Can you check the voltages at the points I have marked please.

[LittleDevil]

http://www.slo-volt-mod.com/slike/GF4/IMG_0229.jpg

[persivore]

Can you check the resistance between the points I have marked please.

[LittleDevil]

http://www.slo-volt-mod.com/slike/GF4/untitled.JPG

[perkam]

lol i had one of these...piece of crap :P

Hats off to the most helpful person in this thread :rolleyes:

What are u guys trying to mod it to :hm:

Perkam

[persivore]

Hats off to the most helpful person in this thread :rolleyes:

What are u guys trying to mod it to :hm:

Perkam

We're trying to give it some more volts ;)

@LitleDevil, can you check the resistance between the points I have marked please.

[LittleDevil]

http://www.slo-volt-mod.com/slike/GF4/IMG.jpg

http://www.national.com/ds/LM/LM324.pdf
http://downloads.solarbotics.com/PDF/LM324.pdf

[persivore]

I think both the Vgpu and Vmem mods are going to have to be done by cutting traces/raising on the LM324 from the PCB.

[LittleDevil]

Where is Measurement point for GPU and DDR?

Which variable resistor can i use for GPU and DDR?

tnx

[CaTalyst.X]

couldnt u jus mod the FB pin of lm324..

-CaT

[persivore]

Where is Measurement point for GPU and DDR?

Which variable resistor can i use for GPU and DDR?

tnx
I've added the Vgpu and Vmem read points to the picture. Use 500 ohm variable resistors and raise their resistance to increase the voltage for both mods.

couldnt u jus mod the FB pin of lm324..

-CaT
The feedback pins on the LM324 are directly connected to the regulators output, so just using a VR on the feedback pins wouldn't have any effect.
It might be possible to mod the reference voltage from the voltage dividers which set the voltage, but that would mean searching the card for the resistors which form the voltage divider.

[persivore]

I don't think that the mod I posted before will work. The LM324 will have a much too high a resistance for the mod to work with just 500 ohm resistors. I will look for an alternative mod which hopefully won't involve cutting traces.

[a5h]

i have one of these ...i looked everywhere for a GOOD guide to vmod but also couldnt find. every1 said its not worth doing :stick: performance gain is too small.

[persivore]

If you want to do the mod, instead of doing what I showed on the picture origionally, replace the varaible resistors with a 10 ohm fixed resistor, and use the 500 ohm varaible resistor between the point on the chip and ground to increase the voltage.