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im gonna finnish my 6600gt soon and need to perform this mod but cannot find any info on it
my mem speed increases with core volts already im assuming because the mem controller is gettign more volts but ive hit a wall and need some more can anyone help
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Lovely Wendie
no one has done this mod yet????
i have a reference design 6600gt i did some looking around still cant find any other then the core gpu mod
please help
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MistressSonia
wow only two views this is sad :(
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3LATINASHOT
http://xtremesystems.org/forums/atta...id=31756&stc=1
The resistor should be 550Ohm.
http://xtremesystems.org/forums/atta...id=31757&stc=1
Solder 10KOhm VR in parallel.
Measure vGPU on back of the card here:
http://xtremesystems.org/forums/atta...id=31758&stc=1
Thats it. Lowering 550Ohm by each 25Ohm will increase voltage by 0.05v.
is that for v-core or v-mem too im confused as it shows gpu read point i want to give these ddrs more volts
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Toyota Tf106 Specifications
o but thanks for the reply tho!!!!!!!!!!!!!!!!!
any help super apreciated im trying to make the ultimate 6600gt here now
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Theea
yeah thats the vcore (vgpu) mod for the 6600gt
Oops :) Missed that you need a vMem mod.. Can you tell us U502 marking?Quote:
Originally Posted by brandinb
http://xtremesystems.org/forums/atta...id=31773&stc=1
wow thanks for the reply badong i will get that tonight for you
THANKS!!
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Ford Eucd Platform Picture
just as i feared that chip got hot so i put a heatsink over it when i v-moded my card!!!
its thermal epoxied on now....
can someone else help and tell badong what the chip he shows says please
its on the back of the card so it should be easy for someone to check it without taking thier card out of thier computer i would be extremely appreciative thanks
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Coach purses
Here is another easy way to vmod the vgpu&vmem of your 6600gt pcie:
connect 2 50ko variable resistor to tp504(for gpu vmod) & tp503(for mem vmod),and connect the other side of 2 resistors to ground,then adjust the resistor.
you can find the position of tp503/tp504 from below (right below u502,there are two "large size" via marked "tp504"&"tp503")
http://xtremesystems.org/forums/atta...id=31758&stc=1
how high should we go to be safe on the core/mem?
thank you fatbird i will perform that mod on tp503 point for memory
now i just got to get some 50k ohm vr's does radio shaq have that??
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HONDA NSR125 SPECIFICATIONS
Maybe.....and I think it is very easy to get this kind of resistor.
oh wait before i do this i forgot to ask what point should i use to measure the v-mem??
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LAMBORGHINI MIURA
I Prefer testing the 2 gray coils shown below(bigger one for vgpu another one for vdd&vddq) directly to read the voltage.
http://xtremesystems.org/forums/atta...id=31757&stc=1
hmmm i have heatsinks on those components because of thier temperature i fear it may be difficult to measure it there is there a capacator i could possibly measure it off of
i do not need very super accurate volt measure i just need a reference stock volt and maybe increase 10-25% on that reading so perfect accuracy is not required
btw thank you fatbird so far with the great help and im sure others are benifiting from this also as i still cannot find anyother source of 6600gt volt mod for the memory then this!!
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EXTREME Q VAPORIZER PRICE
btw my heatsinked memory on my card will run 1350 artifact free forever does anyone know what speed i can achieve with a slight bump in voltage??? 2.0ns ram btw!!
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Ship Sale
the Vmem mod for this card is so damn easy, you can literally, just stick a resistor into TP503, then run a wire to ground, and thats it, its done.
I solderd a 4.6K resistor to a wire, then to a SMD grabber, stuck the resistor into TP503's hole, then ran the SMD grabber to the ground pin, of a unused 3 pin connection on the motherboard, and thats it, it was done.
went from 1.6 volts, to 1.9.
your sure on that mod kunaak??? if so im going to do it. did you see a decent increase from that mod?? so a 10 vr would be good for this job right?? also where can i measure the mem voltage from besides what fatbird showed as i have covered that wiht a heatsink
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CHEAP CROSMAN STINGER AIRSOFT PISTOL HOLSTER
can u show some pictures of that Kunaak? you sticked a NOT variable resistor on it right ? :stick:
thanks in advance :)
no I did not stick a variable resistor in there, not yet.
I just solderd a 4.7K resistor to a wire, to a SMD grabber, then shoved the resistor into the hole of TP503, then grounding it with the SMD grabber to a ground pin on the motherboard, and it was done.
you can measure it, from the leg of the black box, just above C47. not sure what that thing is... but thats where you measure it. this mod required no soldering, just make sure you don't knock the wire off, or you might just kill the whole thing... SMD grabbers should be used with some caution, cause if they come lose, your gonna wish you just solderd it on.
I went from 1320, to 1370 on my ram, by this mod.
that was with the 4.7K resistor, I didn't try anymore then that.
I can say however, at 1.9 volts, the ram did get rather hot.
hey kunaak im going to perform this mod with a vr so more resistance is less volts right?? i will start with my 10k vr at 10000ohm and work down from there to 4.7k right?
i like to monitor the volts while i change them so i will solder a wire to read the volts on the fly like i normaly do with this type of thing and thanks!!
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ALZHEIMER'S DISEASE ADVICE
ty Kunaak, think i got it, but i still a bit afraid of killing the card since i have no card to replaced this atm, so a picture of the card with the mod would be divine :)
thanks in advance
pictures of mods, from me, isn't really an option.
I have no real digital camera, and nothing capable of good close ups.
believe me, I tried in the past, even with my friends camera, even his sucks for it.
someone else would have to show you this.
all I can do, is either draw it, or describe it for you.
a good draw will help :)
thanks
I've made a picture.
http://www.xtremesystems.org/forums/...id=37586&stc=1
Is it ok?
cu, Bitpower
Hi, does anyone know a pencil mem vmod for 6600gt pci-e?
That picture makes it quite clear, thanks! I'm lucky you bumped this thread, it doesn't pop up when searching for "6600 GT voltmod"...
EDIT: I see now, one of those is for VCore and one is for VDDR. Is there no known VDDQ mod for these cards? Would such a mod even net any gains?
Thanks.
looks like nobody knows, how to make pencil memory vmod :-(
Does this mod actually call for a 50K Ohm VR?Quote:
connect 2 50ko variable resistor to tp504(for gpu vmod) & tp503(for mem vmod),and connect the other side of 2 resistors to ground,then adjust the resistor.
you can find the position of tp503/tp504 from below (right below u502,there are two "large size" via marked "tp504"&"tp503")
Kunaak mentioned he used a 4.7K resistor for VDDR/VDDQ and saw a 0.3V increase - so I suppose I can use a 10K OHm VR for this one safely.
Will a 10K Ohm VR do the trick for VCORE? What kind of overvoltage will I see, using the tp504 method and a 10K OHm VR?
i did the vddr mod and it showed no improvement basically maybe 2-3mhz
to get more memory speed keep increasing the core voltage and the meme speed will keep climbing
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LARGE TITS LIVE
Really?
Do you think this is due to the memory interface that this core uses?
I did the memory mod too and I got an 50Mhz increase at 2.16V.I have Asus EN6600GT.
I noticed that my card doesn't overclock memory like other cards do.Only max 1095 from stock 1000.After voltmod I can run at 1150.
I noticed also that my card's bios has very tight memory timings,even beyond specifications for Samsung chips.Other cards,that overclock very well,have more relaxed timings,like for 1.6ns memory chips(ex. Gigabyte).
Performance,though,is about the same with tight timings and lower speed,and with relaxed timings and higher speed.
Indeed,modding the core,gives some room for memory overclock,but nowhere close to the real voltmod.And I would like to add,that is no need of soldering for this voltmod,for those scared of this.
Just put a wire in the TP503 hole,and attach the ground wire anywhere -case,black wire in molex.
wow seaman you may be onto something
my gigabyte 6600gt did 1379 3dmark stable with only core volt mod
i was running 3dmark 2001 at 670/1379 and it had very little artifact 3dmark 2003 and 2005 would only run about 655/1350
so maybe the vmem mod gives boost to speed with low clocking memory from stock.
i remember i tried all the way to 2.6 or something really stupid high and only got cooking hot memory that did like 4-5 mhz more lol
stock volts for mem was best for me anybody else want to share thier experiences?
my card had 2.0ns memory for the record and i do not belive on 6600gt card the 1.6ns memory has any advantage i belive like felinusz suggested maybe the memory interface is the holdback because my memory only did about 1200 with stock volts and 1350 easy with 1.75 gpu volts
everyone please share
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Yamaha raptor 700r
My card does 1070 MHz on the memory (according to coolbits... I need to get powerstrip and find out what the RAM will *actually* do) with stock voltages, good airflow, and copper RAMsinks on the memory chips. The RAMsinks are stock on my card, I am not sure how good the RAMSink contact is, my card is a PCI-E BFG 6600 GT OC with a stock memory speed of 1050 MHz.
This BFG OC card seems to be an average card, it does not look like it (I have only run the coolbits autodetect so far, I have been too busy to spend time on the card and hook up my pelt to it as of yet) will OC like the XFX and ASUS models I have seen, much to my dissapointment. I was expecting really good RAM on my card due to the supposed better speed bin on the slightly overclocked model. I am sure voltage and a peltier will assist with both the core and the memory.
I'll be voltmodding my card either today or tommorrow. I have a 10K VR for the memory voltmod, I'm just waiting on a 50K for the core mod since noone has definitively mentioned how much resistance one should use for the core mod and the TP504 method.
brandinb, is your card AGP or PCI-E? 1350 is insane for 2.0ns memory.
just fyi i use a 10k for the core voltage it has enough resistance
i would do the core v-mod i bet it will get your more mem clocks then the mem v-mod
test it out and please share!
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TEEN BEAUTIFUL
I've found pencil Vmem mod.
The point is changing (decreasing) of resistance of R36 (outlined by red).
http://img477.imageshack.us/img477/8...mmod7lu.th.jpg
Before this mod: Vmem = 2.05V. R36 = 410Ohm. To measure Vmem everyone should use yellow caps.
After this mod: Vmem = 2.25V. R36 = 365Ohm.
That's all. :)
P.S. DON'T resolder this one to resistor with resistance equals 365Ohm. The real resistance of this one is 1.54KOhm. If nevertheless you wanna resolder R36, your should APPROXIMATELY use other one which resistance equals to 1KOhm.
I have a problem, my card doesn't look like yours. So i don't know where I shall measure or mod it. Someone that has a clue? :stick:
Here are two pictures of my card:
http://home.no/datamods/6600GT/HPIM1213.JPG
http://home.no/datamods/6600GT/HPIM1214.JPG
I hope someone can help me :toast:
results? get a better mem oc?Quote:
Originally Posted by Monster
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CLEANING IOLITE VAPORIZER
I haven't tested yet cause I hate pencil mods. I found this mod cause I wanna replace R36 with other one with resistance equaled 1KOhm.
Today or tomorrow I'll do it and then I'll test it.
Now I've done Vgpu mod via replacing R589=3.08KOhm with other one R=1.18KOhm.
Now my voltage table has next view:
Voltage Level 0 : Vgpu = 1.13V => VID = 0
Voltage Level 1 : Vgpu = 1.23V => VID = 1
Voltage Level 2 : Vgpu = 1.65V => VID = 2
Voltage Level 3 : Vgpu = 1.75V => VID = 3
Hey you guys. I really need some help here!
Take a look at this picture of my card, Gainward 6600GT Golden Sample:
http://home.no/datamods/6600GT/Thumbs/Front%20thumb.JPG
Someone recognizes that one? As far as I can see it is not like http://www.vr-zone.com.sg/index.php?i=1636&s=3.
http://home.no/datamods/6600GT/Thumb...20voltages.JPG
Here is the back of the card, bigger picture http://home.no/datamods/6600GT/6600GT%20voltages.JPG. I have found some voltages, down left you see 1,24V, can that be vcore?
What do I have to do now?
Vmem changed up to 2.26V. It added above 100+ MHz extra!Quote:
Originally Posted by brandinb
I think I'll get 200MHz extra changing Vmem up to 2.33-2.35V!
P.S. No timings changes!
results from my article about 6600GT vmod
http://www.pctuning.cz/ilustrace2/Pi...cs/tabulka.png
Grafické jádro => core
Paměti => mem
i need vdimm measure point, i cant understand where it is :D my leadtek rocks 630/1300 w/o moddsQuote:
Originally Posted by fatbird2046
http://www.pctuning.cz/ilustrace2/Pi.../pics/Vmod.jpg
V1 => core measure point
V2 => mem measure point
OK but i have leadtek xtreme, and it reads 2,35 for mem, and 1,55 core :P ?Quote:
Originally Posted by Pirs
Hi, i have read all the sugesstions and mods, i have a Gigabyte 6600GTAGP will the tp504/3 work ? i need a 10K VR right?
Edit:
i just chect and i dont have any tp*** at all :(
heres some pics of the card, sorry about the quality, if you can guide me or something im dieng to mod it already, thanks
http://img4.imageshack.us/img4/5191/...18020hs.th.jpg
http://img4.imageshack.us/img4/8185/...18036kv.th.jpg
http://img4.imageshack.us/img4/1484/...18044it.th.jpg
http://img307.imageshack.us/img307/7...18053la.th.jpg
How much would be safe to put thru the gpu on a 6600GT? Depends on temp or is there a "safe" limit?
I have an XFX 6600GT PCI-E and I think I got it to go on 1.5V using only a modded bios.. Higher values were selectable so I'd like to try them but I don't wanna fry anything so I figured I'd ask before going any higher ;)
The weird part is I can get only about 10 MHz higher compared to stock voltage (1.3V)... I was actually expecting a bit more than that :/
However at stock voltage my card did ~610 which wasn't bad at all I think.
I did measure a 1.52V on the back of the card tho, so I'm positive that the bios update actually did change the voltage.
I've put 1.9v through mine so far without an ill effect on it but that was with -10c aircooling outdoors. Indoors (normal ambient) i've run 1.8v for quite awhile with no problems.Quote:
Originally Posted by snq
Now i've mounted up a swiftech watercooler on it and plan on hitting 2v with -15c ambient to see what it'll max at.
You might see a trend with what i'm proposing... If it dies so be it, i could use a new toy around christmas :D
Well i ran it outside with watercooling lastnight and it seems over voltage protection is kicking in around around 2.05v. If you have decent aircooling i would think 1.8v to bench wouldn't be asking too much provided you aren't seeing over 50c temps on load. When i was on air with i peaked at 48-50c indoors with a normal ambient temps so i would use that as a guide to "decent aircooling". Higher than that then you probably don't have enough airflow around the card or poor contact on the GPU. Right now i've left the GPU set at 1.77v in 3d with 622/1250 set as my clocks for 24/7 opteration.(ATI tool shows arti free up to 640 core) Peak load temps are 38c which badly beat down the stock coolers max that was over 70c at defalt clocks.
I have an XFX GT6600 and the fan on it really stinks.. my IDLE temps on the GPU were almost 50C already (seriously!) but it's watercooled now so temp shouldn't too much of an issue :)
I'll just wait for my new PSU to arrive before I try any higher voltages, it's barely coping with the current power demand ;)
I hope I'll get a bit better results tho, because as I said at 1.3V I got 610 MHz out of it already, artifact free for 15+ minutes. And with .2V more I only gained 10 MHz :/
Will these mods work on a PCI-e 6600 non-gt? I have a Leadtek 6600 pci-e that has stock clocks of 300/225 (550 DDR). Does anybody know what the stock vgpu and vmem are for this card? It should be drastically different for the vmem since it's ddr rather than gddr3 I would think.
I'd like the vgpu to be about 1.6 (since it's just a nerfed 6600gt core) and the vmem to be about .2-.3v above whatever stock is if that's possible.
I finally hooked up my 6600 GT OC with the core and memory mods.
Used a couple of 50K Ohm VRs for the mods, and soldered wires to the voltage read points.
what results from this mod?Quote:
Originally Posted by felinusz
Is it safer to use 50kohm VR than 10kohm?
What are the original(stock/whitout mod) resistance in TP503 & TP504?
finished mine vmods to:) 620/1290 with silencer6 no problem, but many artefacts:mad:
pictures soon
got 640core and 1320mem but not at same time
3dmark2003@625/1320: http://ceemic.pri.ee/download/10189.JPG
pictures:
http://ceemic.pri.ee/download/alarich/al%20028.jpg
http://ceemic.pri.ee/download/alarich/al%20029.jpg
but today I used VR for mem too and overvoltaged it up to 2,3V..I killed my card:mad:
:(
I used 50K Ohm VRs, but 10Ks or 20Ks would do O.K. as well; you'd see an overvolt less than 0.1V with those resistances.
My card actually died as well. I fried it by accident; shorted my peltier on the card and put 22V through the card. The Vcore regulation fried :-/
Bought a new card though, it's hooked up now and voltmodded. Still need to see where it goes with overvoltage.
i used 10k for core and 20k for mem..I can't still understand what happened..what is the max safe V for mem? cooling wasn't problem..
Personally, I don't intend to go above 1.85V for the core, and 2.3V for the memory. But I am on peltiered watercooling.
Is the memory voltmod for VDDR or VDDQ or both? How can I adjust VDDQ on this card?
mine core was 600@1,55V at the "accident" and mem 1320@2,2V and didn't want to go farther; so I started to raise the voltage to 2,3 and then picture shut down(but pc was running!)..
what't the VDDQ??? still a n00b :P
I Did the voltmod on my Asus 6600GT Top, It works perfect :). 2,4v mem, 1,7v 3d :) (lots of artis..)
Here's what I got out of my card after some quick testing:
http://service.futuremark.com/compare?3dm05=1650143, 684/1323 with my system all stock
Going to try for a fair bit more on the core, I only took it to 1.7V, and my load temperatures are still staying below 15 degrees celcius.
I did both the core and mem but didn’t get any joy from the mem mod so took it off just went with a 25k on the core card ran 700/1400 on water @1.6v leadtek 66gt ex
Single 66gt 05 ran 5336@700/1400, 03 ran 12303@700/1371 and 01 ran 30107@ 700/1400 any thing over that just couldn’t keep it cool enough
:cool:
waaaauuuuuu
I am hoping to get the most out (pencil mod) of my 6600GT. It has some fan thing I made from a case fan and some other parts ( works pretty well) temps at idle are like 39 degrees and load @ 45ish
I am pretty bad at soldering, but I can rub pencils on things.
Picture gallery is here www.greensteve.com and tell me if you need any more pictures.
I just got a 7900GT to I can go crazy on this one.
Thanks for any help.