hey guys... im looking to get my graphics card v-modded so i can get #1 on orb again... what all info do you guys need...
i'll list all of the IC's in the morning... but some you may be able to make out, who knows... let me know what is needed to move on
Last edited by CrazyXP1700; 04-12-2005 at 11:54 PM.
I5 760 P55A-UD3
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Can you tell me what is written on the chips I have circled please.
i really couldn't make out a few of the IC's... i cant find my magnifying glass... so i tried to get a better pic, so you could possibly guess if i am wrong
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Those chips look like MOSFETs, the GFX BIOS and an analogue switch. What is the chip on the front of the card, near the bottom?
vgpu and vmem mods would be good to me too
I have no idea how it could be vmodded tbh... but I hope someone out there knows how to do it
you know i'll let ya know how to do it bennah
well those are all the IC's on the front...
thee was also one more IC in the back, that you didn't ask me to list... it was
APL1117 AFCOJ, probably is nothing though
there is also 43AVRXK, ACT08
Last edited by CrazyXP1700; 04-14-2005 at 08:24 AM.
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
The ISL6534 is the voltage regulator. It contains 3 regulators, so is probably controling Vgpu, Vmem and probably Vtt.
Can you check the resistance between each of the pins I have marked and ground, and each of the pins and a Vgpu read point/Vmem read point/Vtt read point. You should be able to find the read points by checking the voltages at inductors/capacitors/MOSFET pins.
Picture
Pin 1 reads 0.54
Pin 4 reads 1.92
Pin 12 reads 0.75
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Is that between the pin and ground?
yes...
i had the card pulled out of the system... do you think that had affected it any?
where would the readpoints be for each one? or should i start "feeling around caps and writing the volts down
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
I think the Vgpu mod should be to connect a 20k variable resistor between pin 1 and ground.
Vmem should be to connect a 50k variable resistor between pin 4 and ground.
I'm not certain that fb1 (pin 1) is for Vgpu and fb2(pin 4) is for Vmem, so check both the Vgpu and Vmem whilst you increase the voltage.
The Vmem read point will be the point reading 2.53v, and the Vgpu will be the 1.33v point.
Vtt should be modded using pin 12, but I don't know if it will be needed.
Also, do the pins on the chip look big enough to easily solder to? If they are too small to solder to, can you post a close-up shot of the voltage regulator to try to find an alternative solder point please.
i was just talking to my friend about that...
im confident i could solder on them, the only one that would be a little tricky would be pin 4... im sure i could still pull it off...
but ofcourse an alternative mod point would always help
sorry about the quality... my camera sucks
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Can you check if the points I've marked look like they are connected on the card.
just a question... can i set a 50k vr to 20k and use it on the other point?
i have 2 50k vr's left over
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
It should be ok using a 50k, but the voltage adjustment might not be as exact.
sounds good... thanks again bro
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
ah nice work guys worknig out the mods... now go and try them out crazy and report back
hmm... i adjust the trimmer for the vram and it messes up card and puts it into powersaving mode... the ram voltage drops to 0.00v so i think im on the wrong point
the other points you listed didn't show the right resistance, so i put the mod on another point with the same resistance... but it's not working so i may just go right onto the IC, i should be able to get it on there
i also knocked a couple resistors off of the card, i forgot to clean the tip... and i got solder on 2 resistors... i still have them here on my desk incase i need them back on... but so far it appears they were not needed (unless they are for the v-ram, but its alot closer to the v-gpu) but it appears to not have affected the card at all... i think i got lucky
i am crazy... im doing this with a 140/100W soldering iron lol
really shouldn't be doing it with this...
v-gpu is working though
Last edited by CrazyXP1700; 04-14-2005 at 03:52 PM.
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Good to see that you have the Vgpu working.
From your picture it looked like the points I marked might have been connected, but I might have been wrong. If you need an alternative solder point for the Vmem, measure the resistance between the point on the chip, and other SMD solder points on the card. If you find a point with 0 ohms (or close to zero, within about 1 ohm) the points should be connected and you can use the point as an alternative solder point.
well i've got a new card now...
im still trying to figure out vmem...
what are the chances that it is off of pin 12... FB3...
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Vmem could be supplied by FB3. If you want to mod the voltage controled by FB3, connect a 20k VR between pin 12 (FB3) and ground.Originally Posted by CrazyXP1700
Hey, CrazyXP1700, just to keep you busy - I have a 18500+ back-up score on unmodded setup - too lazy to publish it nowGonna try hit 19k today with Vgpu modded
[3dfx collection]: 132 cards. Proud owner of 3dfx Voodoo 5 6000 AGP 128MB rev.3700A
Owner of www.ModLabs.net - the leading Russian PC-enthusiasts' project
Founder of Team MXS - the best ex-USSR benchmarking team (~100 members)
Pin 12 (FB3) does control memory voltage
I5 760 P55A-UD3
8GB Corsair
120SSD - 6TB storage
Gigabyte GTS-450
I5 2450M Acer Laptop HM65
8GB A-Data
120GB SSD - 500GB in optical drive
Intel HD GT2+ 3GB shared
Well, sorry for disturbance but looks like the race is over: http://xtremesystems.org/forums/showthread.php?p=983039
20002 (http://service.futuremark.com/compare?2k1=8668949)
[3dfx collection]: 132 cards. Proud owner of 3dfx Voodoo 5 6000 AGP 128MB rev.3700A
Owner of www.ModLabs.net - the leading Russian PC-enthusiasts' project
Founder of Team MXS - the best ex-USSR benchmarking team (~100 members)
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