They do but only they only work on the retail cards and I have an OEM one where it doesn't do a thing.Quote:
Originally Posted by ziddey
Printable View
They do but only they only work on the retail cards and I have an OEM one where it doesn't do a thing.Quote:
Originally Posted by ziddey
Negative. The jumper is to up the voltage to 1.25 from 1.1V!Quote:
Originally Posted by ziddey
Page # 34, Post # 832 and from there on! Below you can see a picture with both mods completed.Quote:
Originally Posted by Deux
http://www.cyberimpressions.net/show...re005.jpg.html
http://www.cyberimpressions.net/show...re009.jpg.html
http://www.cyberimpressions.net/show...re007.jpg.html
http://www.cyberimpressions.net/show...re022.jpg.html
Can you post a picture of your card?Quote:
Originally Posted by Deux
I have the card in post 476. I'll take pics in a bit.
Pictures has been removed from # 476!Quote:
Originally Posted by Deux
The circled section is what you need pics of right?
Been wading through this thread for an hour and just decided to post a direct question.
I'm doing the VMOD on my 8800GT but really don't know how to 'tune in' my potentiometer to it's highest ohm setting before installing/soldering.
Here's the potentiometer I've got; it's a NTE Electronics, 1k OHM, 20 Turn Potentiometer:
...
http://resume.jbhfile.com/temp/1kohm.jpg
...
How Do I "TUNE" this Thing??
My multimeter is not digital, BTW ... so if a digital multimeter is somehow required to 'tune in' my VR, then I'll have to do a return a Fry's.
Any assistance would be appreciated.
I'm not going to solder this thing in until I know it's set up for it's minimum voltage output (max ohm).
thanks in advance for any help!
:)
Your measuring points are the outside posts. Make sure you have it on the Ohms setting on your MM.
Thanks. I just randomly chose a ohm setting on my MM and it is responding when I contact the outside posts.Quote:
Originally Posted by jas420221
So that's progress anyway ...
:up:
...
http://resume.jbhfile.com/temp/multimeter1.jpg
Couple questions:
1. When 'tuning' the VR, and in upper left area of my multimeter dial, should I have it set to RX1k or RX10?
2. When contacting the outer posts, does it matter which (red or black) contact lead I use to touch either of the two outside posts? I seem to get the same reading no matter the combination but thought I'd ask.
Thanks again for your help.
Well, this is the same card I got assuming the voltage controller is the same! I will look for all the pictures of my mod and repost them tomorrow.Quote:
Originally Posted by Deux
Is there a chance to force Giga's GamerHUD to lift a vGPU above than 1.2v? Or to lift it to 1.2v by another software?
No, a hardmod is only way to do that...
scottc19
GamerHUD/hardmod are the only ones which can push it to 1.2v?
I just want to make 1.2v forever without any software running, is it possible?
Then I suggest that look back to the first page of this thread and do the hardmod with a variable resistor...
modding is pretty much the only way.. they use an extra chip on the board to select voltages that only this particular card uses.
http://www.xtremesystems.org/forums/...&postcount=933
"Use the resistance measuring mode of your digital multimeter and tune the VR to maximum resistance" (very important!).
NOOB Question
So is the maximum resistance 0.512 or 000.1? I'm guessing 0.512. Well it actually goes between 0.511 and 0.515.
Hey guys, I have the Palit 1GB card. 3 phase, and same pcb as the Gainward at the top of page 40. I've been thru the whole thread, but can't seem to find an OCP mod for it. Does one exist for it? If so, anyone have pics?
GFDuke,
Maximum resistance of a 500Ω VR is 500Ω, depending on the resistance measurement setting on a multimeter 500Ω can appear as "0.500" (0.5kΩ).
Wile E,
You mean this card? Is the square chip a RT8802A?
If it is RT8802A:
Measure resistance from pin#17 to ground, solder a VR 20× measured value from that pin to ground. Tune down to lower OCP trigger point.
My first Vmod. I get my rma'd 780i back today. I'll get back on the results as soon as i get all my water hooked back up and get running again. I'm pretty nervous right now. Is there a way to test before i plug them in? lol
http://jbpainting.net/MVC-003S.JPG
http://jbpainting.net/MVC-004S.JPG
http://jbpainting.net/MVC-005S.JPG
Looks good Duke, im going to be doing my 8800gt soon. How hard was it for a first timer? This will be my first soldering mod myself.
hello,
i've club3d 8800gt 512hp with crappy cooler. So i want it to overclock, max stable core is 680mhz. Vpgu idle - 1,22v, load - 1,17 (Yes i'm writing right load is lower than idle...) Any mods applied, at all stock with so high voltages, but core only 680mhz... So i wanted to mod it but i can't find primarion chip :( Could you tell for is it possible to apply voltage mod this vga? Here u go some photos:
http://www.ipix.lt/thumbs/50109989.jpg
http://www.ipix.lt/thumbs/75925131.jpg
http://www.ipix.lt/thumbs/49997064.jpg
http://www.ipix.lt/thumbs/70611043.jpg
Yep, that's the one. Thanks largon. Now, to sound like a total noob, which one is pin 17? lol.Quote:
Originally Posted by largon
Would it be the one I marked in blue, that leads to 0 Ohm "resistor"? It's hidden by the wire in his pic tho. My camera sucks horribly at Macro, but I'll try to find a better pic.
EDIT: Got my camera to cooperate. lol.
http://img.techpowerup.org/080514/OCPpin239.jpg
Wile E,
That's the pin. If resistance between that and ground is infact around zero - as the 0R SMR may imply - then the card has OCP disabled by design. Anyways, just measure R from either pole of the 0R SMR to ground. Btw, what exact symptoms does your card suffer from? Remember that OCP causes a crash only during load, OVP on the other hand trips as soon as the trigger voltage is exceeded - regardless of load.
Coppernikum,
The mod in the 1st post doesn't apply to your card because your card different chip that controls vGPU. That chip doesn't like tunable mods so I made you a quick mod that bumps you to a fixed vGPU of 1.475v (is that too much for you?):
Attachment 78632
It's only under load. And usually only above 1.45V, give or take, under load.Quote:
Originally Posted by largon
Resistance is 5k at that point to ground.
And what would happen if I just removed that jumper? I'm not looking for stable OCs. Just trying for some suicide runs.
Removing the SMR wouldn't work.
In order to push back the OCP trigger point you're going to have to solder a 20kΩ resistor (yup, not 20× the measured R, 4× is plenty for this purpose) between ground and any a pad directly connected to pin#17. The resistor doesn't have to be a VR. This would puch OCP trigger by 25%.
Ok, thanks Largon. I think I'll use a VR, in case I need to tune further. One last question, is it more, or less resistance to to push the trigger higher?Quote:
Originally Posted by largon
Lower Ω -> OCP weakens.
biggest thank you @ Wile E and largon, you managed to answer my earlier question on OCP, Cheers :)
I finally put my GT into my rig after having let it a few months lying on the desk.
It has Samsung chips and vgpu mod is done.
http://www.hostingpics.net/pics/1063888800_GT_mod.jpg
http://www.hostingpics.net/pics/1900..._GT_mod_wb.jpg
http://www.hostingpics.net/pics/4706...vgpu_stock.jpg
I'll be testing it soon.
What temps or correct between GPU-Z and nvidia control panel ones?
^Talk about ramsinks! :)
I think GPU-Z give a bit too low temps, like 8ºC too low. And GPU-Z can't be right when I look at my ambients.
Dunno if there's discrepancy between Rivatuner (which I use) and nvidia control panel...
ram sinks come from a NB sink of a dead asus mobo that I cutted and stuck with AS adhesive. they are cold at the moment, card idling. I have to see how it performs in 3D.
nvidia cp and riva report the same temp, so it is 29°C idle, I guessed that gpu-z was wrong. But the second probe has the same value in riva, nv cp, and gpu-z. what is weird is that the wb is cold and doesn't give me the impression that the core is at 29°C, it was a bit hotter with my X800 for the same temp.
Is my temp normal? I've tested mounting with a "blob" of mx-2 instead of spreading. I have idle temps a bit higher than my X800 which was running at 1.7V (instead of 1.35V stock).
29ºC is perfectly fine, what I really want to know is your load temps and don't forget to mention freqs & volts. And what is the maker of the waterblock? I'm looking at 38ºC idle (1.238v) and 41ºC load (1.324v) with 846/2268/1044 (DDR-2088). Cooled with Swiftech MCW60 retrofitted with a baseplate from Apogee GT(X) CPU block, GPU is in the same loop with Q6600 and P35 MCH. :)
One can tell GPU-Z isn't giving the correct figures simply because 21.5ºC would mean ambient air temps <<20ºC...
Yeah! Look like the ones I made for my card! Nice job! :up:Quote:
Originally Posted by largon
thanks :)Quote:
Originally Posted by HitandRun
wb is a CPU wb, manufacturer is 1A-Cooling and model is SL2.Quote:
Originally Posted by largon
the mount is homemade as there is nothing on sale to hold my wb on the card. I have the same wb for CPU, both in parallel.
this idle temp was with stock vgpu.
What would be the reason of so much difference between GPU-Z and riva tuner? GPU-Z is updated so often that it is weird they're holding onto this misreporting.
EDIT : I'll tell you more about load temps at different voltages tonight, I'm not at home at the moment
38 idle and especially 41 load is very good with these voltages I must say, I don't know if I'll be able to maintain such a low delta
Can anyone confirm where the VGPU read point is for the XFX 8800 GT XXX. I've tried taking readings off the mosfets, but don't get close to a 1.1v or 1.05v reading.
http://www.techzine.nl/f/g/15255php4KGpRq.JPG
RLM
I finally have everything set up again. I have to say i am impressed with this vgpu mod. Now getting over 800 core. Unfortunately my rma'd 780i mobo came with the po4 bios and it's limiting my fsb. Or at least that what i think it is. I cant seem to get 4.5ghz like i did with my old board. And, when i do managae to boot to windows at 4.5 i lock up in 3d06. I'll have to spend some more time with it and see if i can figure it out. I've done the vdroop mod. I dont know what else i can do. Try some diff multi's i guess. But the gpu's are rocking on these cards now and they're just itchin to break my old records.
1.23vgpu idle, 1.27vgpu under 3D06 load
http://jbpainting.net/vgpumod3d0622078.jpg
Well I had a stab around in the dark myself and found a possible other location for VGPU reading. Thanks Largon for taking the time to do that. Much appreciated;)
http://img530.imageshack.us/img530/8...8800gt2yt0.jpg
Interesting, in bios I increased voltage tables 1-4 by .1v each and set 3d to 1.2v. After the bios mod I had a reading of 1.15v from that point. Is that pretty standard?
Now with a hard mod I'm reading 1.2v, from both my VGPU point and Largon's recommended.
EDIT: Can confirm possible VGPU read point is actually spot on and scales with the other read points. Volt mods works a treat thanks:D
Cheers
RLM
largon I was impressed seeing your card at +3°C loaded but I am currently running at 31°C idle, and 32°C in game (stock freq & vgpu), weird that it doesn't get much hotter than that, tests that have been made with air show so high load temps with such difference between load and idle.
I'm maybe leaving for a few days tomorrow, will be benching it with higher vgpu and freq after that.
hi,there i made the vgpu mod yesterday on my gts.
but i must say that i got no more overclock with it. why ? maybe i got a really bad gpu ?
some infos now.
i use a zalman watercoolblock.
default load vgpu is 1.22v i can overclock to 820mhz 3dmark06+gamestable.
i had used 1.35 load and 1.45 load but 850mhz never stable.i got blackscreen after some secs
ati-tool or 3dmark.after some secs the screen come back and all looks normal.no reboots or something else.
never had more temps as 60degrees.shaders i get 2050 with default vgpu.2100 is not stable too.
maybe any one a idea for get better results ?
thx
Most likely you are hitting the ovp (over voltage protection) limit and the card is shutting down. Try 1.3v and see what you get (I dont think this will trip it, but I dont remember what the exact limit is). Otherwise you have to do the ovp mod...
Hope this helps
What is the voltage on the GPU at the moment of the black screen! If it goes to zero than the OVP is activated and you need to mod this as well!Quote:
Originally Posted by bigghost
did my 1st ever volt mod on my ecs8800gt none reffrance cards looks cool but cant get anywhere near stable water cooled its hitting 60c and lots of crashes and black flahings
add'd some of the smallest switches i could find so i can go back to 1.07v
went to 1.23 no load and 1.25 3d load
craps out on shader i think
any who some pics
http://i90.photobucket.com/albums/k2...t/Image049.jpg
http://i90.photobucket.com/albums/k2...t/Image050.jpg
sli volt mod
http://i90.photobucket.com/albums/k2...t/Image052.jpg
long story short i have blown the mosfet driver chip (RT9619A) through sheer stupidity and clumsyness,
would anyone have one of these chips on a dead card they would be willing to part with?
please PM me if you could help. many thanks
Hello evrybody. Is there anybody who could help me?
I made vmod in my graphic card. When i increase the voltage abowe 1.13v in
Auamark3 , the voltage reaches the value 0 in the measured points
Please help me. I enclose the photos without vmod
Hello everyone,
I'm about to voltmod my XFX 8800GT Alpha Dog. So in this thread I found the following picture with the solderpoints for doing this:
http://img530.imageshack.us/img530/8...8800gt2yt0.jpg
But I can barely read what it says on the vGPU (red), also the vMEM (green) but I wasn't gonna mod that one :)
So where do I need to solder exactly?
Also, what kind of resistor should I use? How much Ohm?
Thanks in advance!
tralalal,
Your problems are caused by OVP (over voltage protection). You can push the OVP tripping-point further by soldering a resistor between the points marked with red dots in this pic:
Attachment 79469
Oh, and...
:welcome:
_Unstoppable_,
You should PM RLM and ask since he's the one who posted the pic and has soldered the mod.
:welcome:
I did what you told me to do, but the problem still exists
As I re-read your original reply I realized you said:
Does this "in Aquamark3" mean it only crashes while load? So it doesn't crash to 0v when you tune the vGPU without any 3D load, like when you're on the desktop?Quote:
Originally Posted by tralalal
yes only in load :|
Ok, that explain why the OVP mod doesn't help you.
We're looking at OCP (over current protection). Crippling the OCP is a bit trickier, first you need to find out where pin#35 on the regulator chip (L6713A) leads - unless you can solder on the leg... Anyways, pin#35 is the 3rd pin from right on the horizontal row of pins. The trace leads into a surface mount resistor somewhere near the regulator chip, very likely on the backside. Then measure resistance from the pad of the resistor to ground and report the measuring result.
I measured the resistance betwen pin 35 and the ground, but I didn't find te resistor at such value
I've just found the resistor.
I enclose the photo
largon or anyone else, may you tell me what are the usual max clocks with stock voltages for gpu and ram, plus at around 1.3V (idle)?
I've reached 1080 ram game stable on my Twintech ref PCB with Samsung chips, which seems to be the overall results for std PCBs, I've seen people saying they reach 1200 on others pcb with more layers. All of this with stock vdd.
I'm currently testing gpu a bit, at stock max 680 in game. idle temp 30°C and game temp 31°C.
with 1.300V 31°C idle and 34°C in game (1.342V), at 700MHz gpu.
EDIT : stable game freqs are 846/1998/1080 (set as 847/2000/1080 in riva tuner) with 1.300V idle 1.342V loaded
OCP mod done :D
Thx largon
tralalal,
Good to hear you found the bugger.
What's the resistor value you ended up using for the mod? And did it help?
Pacha,
Both my G92GT and GTS did around 702/1998/DDR-2000 at stock volts and the GTS does 864/2268/DDR-2106 gaming stable @ 1.36v vGPU and 1.90v vMEM.
ok thanks for that info
I'm now going to see if the card shut down before 1.4V load and bench it
any one know where the vmem mod point on a ESC8800gt as in this image below cheers..
http://www.abload.de/image.php?img=sssajp.jpg
EvoCarlos,
The chip we're interested in is on the frontside. The rectangular chip with 14 legs, 7 on each side.
Anyone know how a OCP trigger looks in Vista? My screen freez, then flickers, and then I get to the desktop and the driver has stopped error comes up. Is this the OCP? I have done the OVP mod, and this error happens from at 900mhz core and 1.5-1.6v.
OCP makes the screen go black and the system has to be rebooted. What you are seeing is not enough voltage.
Ok, how high can we go on water? I though 1.6v was crazy.
It's stable at 864mhz with 1.38v, but not at 900 with 1.6v? Crappy cards?
I run at 850 with 1.45v to keep all games stable. Anything past 850 and the gains are minimal at best. Mine will do 900 stable at the same volts, but all 900 really does is look good in a screenshot. What the added volts does for me is allow me to clock the shaders higher and that is what gets me my added performance.
Im trying to get my WR's back, so all mhz counts :-)
Yeah it all about the WR! He He! My GT is 7th in the 06 Mark! Need to score over 20K with it to get to the top!Quote:
Originally Posted by hifiking
hey largon
is this the little bugg3r the one with red dot in image?
if so what would you suggest be best to do as the mem chips not samsung :mad: there the gay ones
i also need to find a mem mesuring point can you enlighten me :D
http://i90.photobucket.com/albums/k2...8small-1-1.jpg
EvoCarlos,
That's the chip. What does it read on it? / Please post a clear shot of it so that I can draw the mod on it.
How does your Qimonda GDDR3 overclock now, as it is?
And here are the measuring points:
Attachment 79636
hey largon
the memory with out volt mod clocks to about 1040mhz with out errors but with the volt mod i cant get it higher than 1000 with the core @800 and shader @2000 driver crashes.
chip reads = APW7067N
data sheet here if need'd---> http://www.anpec.com.tw/products/dow...APW7067Na3.pdf
found an image on my camera after i'd striped the pc to take a pic DOH! here it is
http://i90.photobucket.com/albums/k2...t/DSC01088.jpg
i've got a pretty wierd board, and have no freaking idea how to do a vmod on it, cause i can't even find the vgpu and/or vmem measure points...anybody able to help ? i have exactly the same PCB as the asus EN8800GT 1GB model, and actually, the bios for that card, works perfectly for my 8800GT (en8800gt/g/htdp/512M/a from asus"...no bios 1.1v mod worked....so far, i'm in the shallows with it, can't solve it ! my max clocks so far with a VF900 Zalman are 690core/1748shader/2172mem. Oh yea, i found a L6713A VRM chip on it, but the layout of the chip and the sorrounding resistors is very different from anything i've seen online, and I have spent more than 24 hours searching ....PLEASE HELP ! i'll upload some photos as soon as i can ;) - and here they are -
http://www.filecrunch.com/fileDownlo...&fileId=152666
http://www.filecrunch.com/fileDownlo...&fileId=152667
Hey
This is a question for Largon or Tralal. I performed both the OVP mod (with 2.2 kohm resistors), the gpu vmod with a pot, and a vmem mod with a #2 pencil.
My card is a reference msi g92 gts, and the ocp IS RIDICULOUS. It kicks on at around 1.25 volts and f*cks everything up. I really want to perform the ocp mod.
So i should just find the resistor connected to pin 35, measure it, solder on a pot connected to ground, and tune down?
THANKS SO MUCH LARGON for answering everyone's questions, and keeping this thread alive!!! I eagerly anticipate your reply!
Max
edit- i have even flashed it with a modded bios to try and get the voltage fluctuations from happening, but still whenever i play a game, or anything the volts go up by about .5v. Anyone know a way around this? I'm not nearl concerned about this as i am about the ocp issue. Thanks!
EvoCarlos,
Please measure resistance between ground and pin#4 on APW7067.
Attachment 79711
Aldoinro,
:welcome:
For vGPU mod - please take a good pics of the following areas (L6713A chip and the two small chips on the backside):
Attachment 79714 Attachment 79713
vGPU measuring points should be here :
Attachment 79715
If those read 0v, then try the opposite ends of the components, difficult to say due to the low res. There may be vMEM points too on the backside but, again, the pic is too low res to say for sure.
fragmasterMax,
Im a little confused; you say your card is a reference board (reference = same as in 1st post) but I got the impression that you did the mods that were designed for tralalal's non-reference card. Those are two different cards and the mods aren't intercompatible. Might I see a pic of your card? And I'm not sure what you're trying to say here:
Quote:
Originally Posted by fragmasterMax
Wow...you're really making some headway fast here ;) wait, i got some pretty good pics coming up :)
http://www.filecrunch.com/fileDownlo...&fileId=152823
Thanks for your reply largon. I sent him a PM a week ago but I still got no answer. I got tired of waiting so I started on my own.Quote:
Originally Posted by largon
I tried the following:
http://img141.imageshack.us/img141/3...0gt2yt0ut5.jpg
I soldered the middle pin of the 5K resistor to that yellow dot. The last pin of the resistor I put it on a screw in my case as a groundpoint. As soon as I turn on my PC everything works, but the voltage of the GPU is unaffected.
What am I doing wrong?
_Unstoppable_
on air
vgpu 1.45v
vmem 2.05v
http://img80.imageshack.us/img80/6795/s17kew7.jpg
http://img80.imageshack.us/img80/679...74b4125f60.jpg
First of all I have to say thanks. I read almost all this thread, and with all your help I was able to do the GPU mod.
I didn't use the soldering iron, because I don't want to loose the warranty, I made the mod using Bison Electro . It was easy, so easy that after I made it first time, I clean it down in one hour, because I suspected the card was damaged. I couldn’t get 3dmark to run even at stock. It was because of CPU oc, I loaded some unstable bios setting, while I wanted to test the card :)
Last week I installed Maze 5 wb, and the temps max at 45 with 1.3 under load. In the process I wanted to make sure the ram heatsinks will not fall off, and I added some AS thermal adhesive on the memory (uncutted).
Now my problem is that before the WB, using zalman cu900, and the same heatsinks (sticked just with thermal paste), I was able to run the card mem at 1950mhz. Now it's not stable at stock (1900), it only works at 1850 (with stock everything). The GPU hits 850 easy, but with the mem at 1850 I'm doomed. I don't plan to stress the Hynix memory too much but I expect 1950.
I must add that I tried everything to cool down the heatsinks, and the only conclusion is that the AS adhesive, is somehow not doing its job on one heatsink or maybe multiple ones. Or am I just missing something else?
Unfortunately the only solution is to take them down and stick them again with cutted AS adhesive, but as I read this is very hard (freezer) and risky.
Maybe I’m wrong, but I don't think there is another explanation. I just posted to tell my story, and maybe some advices.
hey largon
the reading from pin 4 to gnd is 615ohms with volt mod active forgot to get a reading with it off
also if ive read my multymeter right
sorry for the delay real life was calling:D
I have a sparkle 8800GT , cooled by a GX810 Zerotherm . I vmoded it , and set VGPU at 1.3V . The memory is quimonda...si it doesn't clock very high...but i got 800 core / 1950 shaders stable in Crysis with AA4X at 1280 .
I'm worried about the temp . In Crysis or other games,the temp hits about 66 degrees , but in FUR , i get about 80 Degrees . I've changed the thermal compound with AS5,so i'm expecting it'll drop a few degrees,but it still seems a bit high .
Am i safe with this voltage 1.3V , 24/ 7 , without damaging the card ?
i got scared with my ecs8800gt as i got all but no improment from 1.09 -1.3v so have put it back to stock as my temps were just rizing i get more points on 3dmark06 with 730mhz core @ 1.09v than i do with 800mhz @ 1.3v somthings a miss and i need some one to explain why as im noob at vmod this is my 1st one:rofl:
just did a run on 3dmk06 and got this = 20541 volt mod off lol
http://service.futuremark.com/compare?3dm06=7046102
would any one have a dead card with an RT9619A chip on it they would like to part with? if so please PM me and we could work something out :)
DO NOT USE FUR TO TEST YOUR CARD! IT WILL KILL IT!Quote:
Originally Posted by h3x0r_1984
From my experience, the more Core/shaders frequency, the lower mem freq you have to use, at least with qimonda chips, hynix shouldn't be much different, i suppose.Quote:
Originally Posted by hashwood
This has also been my experience - mem used to do 1950, but now (post gpu volt mod) it will only do 1850mhz with the core at 825mhz. Not sure whats up... gpu volt mod stealing some juice from the mem perhaps?Quote:
Originally Posted by Luka_Aveiro
EvoCarlos -> you may want to do the 3dMark test again :)
They had pny 8800gt on sale this weekend at bestbuy for $149 so I got a couple. I never did any mods before so don't laugh too hard :D I used single turn trimmer.
like this one --> lol http://service.futuremark.com/compare?3dm06=7053938Quote:
Originally Posted by walshlg
volt mod on @1.3v
i just dont get it so why am i volt modding again it just dont add up
no vmod 20541 marks 730/1820/1017
vmod 21058 marks 800/2000/1000
517 marks thats hardlly worth writing home about...:rofl:
I believe it has something to do with the IMC (integrated memory controller), maybe loosening ram timings would be a good idea for higher mhz, don't know however if it would benefit you overall performance.Quote:
Originally Posted by Merc1212
Hi,
There is a lot of different ovp mod, i'm not sure that every one works perfcectly.
Did anyone find it and can set 1.6v on gpu ?
I need it, LN2 is coming last week so i don't want to be stuck at 1.4v.:p: Please help me!
Thanks ;)
I have similar problem... If my clocks pass 890/2052 (gpu/shader) and voltage is >1.5v,it freeze it.I did OCP (2x1.2k ohm resistor) and dont know what else to do... Any advice? Temperature wont pass 50°C
so i just want to confirm that the vmem power regulater on the stock 8800gt is the same as the non refrence card i have.
i.ve been looking at the data sheets for the stock and my card and want to do the vmem buck mod
http://i90.photobucket.com/albums/k2...MEMBUCKMOD.jpg
so will a 50k to pins #4 and #13 work the same on my card?? mine is the APW7067N chip
quake6,
It's very likely your GPU is maxed out. 900MHz seems to be somekind of cut-off freq for G92.
EvoCarlos,
Yup. APW7067N and ISL6549 are pin compatible.
I need some help. I looked through this thread, but the XFX pictured earlier in the thread doesn't match the pic I have.
Can anyone help me find the correct mod points and read points on this card?
http://i302.photobucket.com/albums/n...ackportion.jpg
vmem= 6549C8Z
P7408TL
vgpu= ISL6568
CRZ
M744FD8
Thanks!
edit : find the fb pin from here (6th one) http://www.intersil.com/data/fn/FN9187.pdf
and see where it is connected to , and measure the resistance from there to ground ;)
do that yiancar said if this resistor has 0 ohms with the Fb leg pin 6 on the link http://www.intersil.com/data/fn/FN9187.pdf then mesure the other side of the resistor if it is grounded then tis is your spot how many ohms are from the Fb to the ground ?
hi, is there any mod for my card?
I have a Gigabyte 8800GT 256MB... here some pics
http://s8.directupload.net/images/08...p/j7ugbp2d.jpg
http://s8.directupload.net/images/08...p/znw2wpt7.jpg
soldering or conductive ink or anything else?
edit: could provide the pics at double size if needed...
tell us the name of the following chips plz :)
http://i31.tinypic.com/33xa53a.jpg
Quote:
Originally Posted by yiancar
I'll get back to you. I don't have the card yet. A buddy of mine wants me to mod it for him. I'll see if he can take some measurements.Quote:
Originally Posted by Vatos_locos
(Fb to GND) x 20 = ~VR ;)
Just a small update... I have been successfully running that xfx 8800gt that I bought back from the dead, from another board member who broke it volt modding. I have also been running it 24/7 with 1.5vcore idle. With a water block, heatsinks, and a fan. So it seems that 1.5 is stable and at least somewhat safe. I dont know how long its been, but at least 3 months. I posted a while back and thought that this 1.5 had damaged it, now I have comfirmed that it is still fine. I'm not suggesting that everyone crank theres up to 1.5, but just take it as food for thought.
hi, it says "lower resistance to ground" on the green marked resistor for increasing Vgpu... could it be penciled, too?Quote:
Originally Posted by oohms