damn mx440

[X-Ecutioner]

damn mx440

i modded the card for a friend
mounted a big pelted heatsink ... no problems
did they vmod and bang ... dead!

i dont see what i have done wrong ... maybe u guys can help me

http://www.vr-zone.com/guides/NVIDIA/MX440VMod/

my card looks a lil bit different (some resistors are not at the same places but that wasn`t the problem because i did only the vgpu mod

a pic:
http://mitglied.lycos.de/reasor/mx440.jpg

btw this is the first vmod i did on my own ...

X

edit: i was able to change the ohm from 820 stock (1.5v) to about 700 (should give 1.8x) but my multi reads 1.23 no matter what i set the vr at

edit2: btw i removed everyhting now ... but i`d like to know if i did anything obivously wrong ... thx

[X-Ecutioner]

a pic of the hs ... rip lil mx440

http://mitglied.lycos.de/reasor/mx440%20hs.JPG

X

[Bra!nFreeZe^]

As I have told you personally I think it looks like a really clean mod...but this is the chance we take when we are vmodding...and Im sry that I cant tell you whats wrong d00d :(

[Holst]

Looks like the soldering is sound.

Does your card use a IR 3033 ?

And are you performing the same pin3 mod ?

I suspect you may have got the mod a little wrong, due to your card being slightly different.

[X-Ecutioner]

same chip same pin

...

it is slightly different but i found all the resistances on the card which would identify the card and are near the chip and important for the vmod and i just did the vgpu ...

wait a sec ill take a better pic ...

X

[X-Ecutioner]

best pic i could take:
u c the
c618
r609
r612 and
r610 are close to the IOR 3033 chip

http://mitglied.lycos.de/reasor/mx440close.JPG

i checked this whole stuff days ago ...

i checked the ohm on the card without the mod 820ohm -> 1.5volts i vmodded and set to 700 but the vgpu stayed at 1.23 ... removed vmod ...still 1.23

btw ... thanks for ur replies

[X-Ecutioner]

http://mitglied.lycos.de/reasor/mx440close1.JPG

X

(ill be off till tomorrow)

[Edward2]

Could you explain what you have soldered in the picture in your first post? What are the 2 green wires doing?

Your VR should be soldered between Pin 3 and Ground for the GPU mod.

[X-Ecutioner]

green wires : pin3->vr and vr->ground
red wire: ground for multimeter
black wire : ->vr->pin3 (point to measure vgpu)

X

[Edward2]

I'm embarrassed to say that I originally did not see the VR in the picture of your video card, but now I do. You have the VR hooked up correctly based on the VR-Zone schematics. The problem is that you are measuring the feedback voltage "Vfb1" (via Pin 3) with your multimeter and not the actual GPU voltage.

The way the circuit works is that the IRU3033 chip on the video card maintains a constant (non-changing) voltage on the feedback Pin 3. That is why you measure 1.23 volts no matter what you set the VR to. By reducing the resistance of the VR in parallel with Rb, the result is that the actual GPU voltage increases.

If you look at the VR-Zone schematic, you need to measure the voltage on the + side of the capacitor to the right of resistor Rb. I would suggest that you increase the resistance of the VR to the max setting, which should change the GPU voltage back to about 1.5 volts. Then check the voltage on the + side of all the capacitors until you find the one that reads about 1.5 volts. Then you can decrease the resistance of the VR and measure the actual GPU voltage.

I hope this helps. If you have any questions, please feel free to ask.

[X-Ecutioner]

thx

but unfortunetly the card is dead ... i killed it .. i set the vr to max 5k at the start and i got a black screen ... no signal it was dead... and after removin the vmod ... still no signal so its defenive dead

:/

just wanted to know what i did wrong so i wont do it again ...

X

[Edward2]

I saw that you originally said it was dead, but then you later said that you removed the vmod and was still able to measure the voltage. I thought maybe it had come back to life. Sorry to hear that it died.

Sounds like you installed the VR correctly. Maybe you adjusted the GPU voltage too high, and that is what killed the card. I am not sure.

[X-Ecutioner]

the vr was @ ~4.8k

the card killed 2 old mobos ... a chip on one of the mobos is toast now ...
the whole setup freaks and i get ~1 on the 12rail of the psu ...

i hate this card ...
it`s accutally not mine ... i modded it for a friend ...
he just bought a 3ti500 on ebay for 66€ ...

X

[mattsmall]

that card is evil you should set the card on fire

[X-Ecutioner]

thought about doin that but i think he wnats to sell it on ebay ... maybe somebody wants it for a mem swap or somethin

X

[mattsmall]

mem swap?

[X-Ecutioner]

takin the rams from card A and solderin them on card B because they are better or the mems on card B are damaged

just like La1kr0diZ did ...

he got 24k with his modded 9500np but a guy beat his score (501 gpu)
but he used wc on his card and got only 450 core... if he would have used phase change he`d be still 1st i think ...

compare link (http://service.futuremark.com/compare?2k1=7187661)

i think i`ll really set it on fire , i`m not 100% sure ... but if i do i`ll take some nice pics :D

X

[X-Ecutioner]

well

so did i do anything wrong? besides measuring the wrong voltage ...

i had the vr @ max ~4.8k and just soldered 1 wire to pin3 and the other to a ground ...

card dead ...

if i would ask you for advice because i want to buy exactly the same card again what would u tell me?
(i won`t but i just want to know)

thx X

[Edward2]

For one, I would suggest using a VR with 10x or 20x the stock resistance (10k or 15k VR). This would allow you to slowly raise the voltage. Maybe you simply fried the card by raising the voltage from 1.5 to 1.8x volts.

Also, did you check your soldering to make sure that you did not accidentally connect adjacent pins or traces? I have done this before.

Or, you might have fried the video card due to the pelt and large heatsink. Was the heatsink possibly touching any components on the card? When I first installed my CPU water block, my computer would not boot-up due to the fact that it was touching some components on the mobo.

[X-Ecutioner]

i tested the card after mounting the hs ...
after i was sure the hs is mounted correctly i did the vmod ...

next time if they say u should use 5k i will use a 10k! ...

i checked the wire and it`s not like i had to solder 4 or 5 ...just one on pin 3... and i checked the soldering...

i`m pretty sure i didn`t mess up the soldering i checked the wire over and over again maybe something shorted out when i tested the card
is it normal that fried cards kill mobos?

X

btw thx for all replies!!