Thank you my friend :up:
Printable View
Nice work mate :up:
Thank you my friend it doesn't look as clean as i wanted but works like a charm, had lots of trouble soldering the measurin point from the mem as in my card came with almost nothing of tip in that side 3 times unsoldered...is there any other point to measure vmem ?
Cheers :up:
Sergio
Does anybody have any ideas about a proper vmod for the 1.1PCB? I tried the only vmod I could find (by soldering directly to the leg on the volt reg) but found it didn't have any positive effect on the clocks of my card. It shows that the voltage is going up but makes no difference in clock speeds and doesn't even raise the GPU temps!? I have one card that is of the original PCB and that mod works fine but the new PCB design doesn't seem to be effected by the mod. My volt meter shows vGPU of 1.29v but clocks no differently then at 1.14v stock. And temps are not the issue, they are fine at 41 under load.
after further mods.. stalker cop @ 821/1872/1512 arctic accelero/air cooled
q9650 @ 4.5ghz
ddr2 @ 1250
ep45 @ dq6
~1.42vgpu @ load
~2.32vmem @ load
http://i47.tinypic.com/awvx34.png
almost 1890 shader stable.. if for more vgpu this 285 could do more on air cooling
this may be the last result on 285.. as im getting ssc and ftw ready to be handed down to my cousins
its been a crazy year may the next be crazier :toast:
thanks mate :toast:
higher vgpu remedies solid color screens after ocp mod but not always..
yeh every mod ive tried and have done/tried many mods.. i hit a wall/bottleneck fast.. ive double decked the 6x r22 inductors.. was gonna double deck the mem induction aswell but gave up
hopefully fermi will bear better/more flexy voltage regulator/regulation
yes will try today i can play DIRT2 at 821/1800/2900 at loaded 1,36vgpu 2,2vmem, and crysis at 810/1836/3024 same volts and 810/1836/3096 on 3DM06and unigine's..but stalker gave me solid colours at 821 core...just can pass it at 810/1800/1548 same volts
will up some volts and see, also W7x64 forces a lot
Cheers Napalm and thanks for all again :up:
Sergio
Hey guys, i'm new here on these forums and I have been reading this thread for days( reading re-reading) I am now ready to take the plunge but I have a question. On Crotale's ocp mod he says to use a 100k vr and tune it to max resistance, are we sure that it is a 100k vr cause the guy at Radio Shack showed me one today and it was MASSIVE. I got 2 10k vr and a 100 vr. Now by tunig to max resistance he means tuning to 10k or whatever the max size vr you have correct? And am I safe in using the 10k vr for the ocp mod? Thanks in advance, I can't wait to unlock the sleeping beast in this thing
Wow, I just took some baselines tests and i'm a little surprised. I have an EVGA GTX285 SC edition. I tested volts at idle 1.26 gpu, 2.18 mem, under load 1.31 gpu, 2.23 mem. Bear in mind that this is an unmodded card and I am getting volts some of you guys are getting with ur mods. Does that mean that I can possibly go farther with the volts by doing the mods? I may have a better card then I thought :cool: One more thing, I have answered my own question on the resistors, apparantly the guy at the shack don't know squat, I found the exact ones I need. I will post back with results when I get the vrs, later for now.
muledeer
ocp mod is smtg you dont have to keep adjusting.. best if a fixed resistor is used (10 ohm or 100 ohm) whatever you got handy.. if vr.. set it low @ 10-100 ohm.. i went below 10 ohm and nothing bad happened :up: solder the vr/resistor between the ocp point and ground and forget it
thats the same volts as the evga ftw.. youll probably get some nice clocks outta that ^ :up:
good luck! :toast:
Interesting stuff indeed...
Grabbed my xfx 285 vanilla today and make the 1.26v mod ( liquid silver )
756/1866/1404
Fan Auto
How many volts did you guys tested with stock cooler without changing the fan speed?
I've tested with furmark and give me 83ºC but gaming barely passes 60ºC.
Hey peeps, so far I have ocp mod compete, it definately is working because the pink screens are gone. The problem now is the display drivers keep crashing, lack of volts I guess. I can't find a circuit pen anywhere, guess i'll have to order one, and I can't solder the connections. This is my first attempt at anything like this and let's say my soldering sklls leave something to be desired. I'll post back when I get the volt mods complete with some results. I would like to thank everyone for working on this especially napalm and crotale :up: Thanks guys
I think I may have done osmething wrong. I have done the ocp mkod and I have done the first step in napalm's guide, bridging connections and I have lost volts. I'm only loading at 1.26 now and before the mods I was loading at 1.31. Any ideas? I'm a little confused here :confused:
when bridging if voltage goes down youve increased resistance.. in other words unsuccessful modding
even if it looks like its bridged dont mean it is thus best to use solder or if you have to lead + solder
yeah mate understood that why i went for the real ones using vr's
but still OCP/OVP kicks when using over 1,4 and core over 821...im really lost...i want to change the 100k vr to a 100ohms one tuned to 10ohms...what do you think ? or maybe its bad soldered...but weird as it was kicking on 1,3 and was solved...im trying some combos with gputool and found it stable at 818/1782/2972 vgpu load 1,38 vmem load 2,21, this is faster that what i was trying before...but damn solid colours mate
Alright guys, i'm making some progress here. I redid the ocp w/ a fixed 100 ohm resis, per napalm's request ;) and did the vgpu mod, step 3 in napalm's guide. I'm idling @ 1.31 load @ 1.36 :D Thing is, i'm still getting the red screens, :confused: Napalm, if possible, could you post a detailed pic of ur vdiff mod, I can't get the thing penciled past 600 ohms to save my life and I would rather do the hard mod :) I still do not have the connections bridged as in step one, I can't solder worth @#@# :D ordering a conductive pen so I think i'll be pushing 1.39v when I get that. Still can't figure why ocp is still kicking in oh well, any ideas?
loading @ 1.38 now
you have to pencil really well to lower resistance because of the coating on the resistor
you may get it down.. you may get it to run 3d fine for few minutes/hours but all of the sudden you may not be able to boot at all.. its a pain in the arse.. very sensitive area to deal with not just that resistor
try a vr (set @ 700 ohm) @ resistor which should lower the resistance of the resistor to 350 ohm and see if that works.. it may not work
i just resorted to removing the damn thing and once i removed it i got higher voltage/performance per clock
step 3 works best after step 2 is done/once higher voltage is allowed
step 2 and 3 requires crotales ocp mod to reach full potential
unfortunately every vmod maybe except for the ocp mod youll hit either temp sense or voltage sense hence all the solid colors.. probably because of the 55nm process 285 uses but a very good voltage regulator would allow higher clocks/higher voltage/regulate voltage better despite the drawbacks of 55nm 285
of course im referring to air/water cooling.. if you pour ln2 less pain no need to worry about 10 diff vmods but the vmods help all kinds of cooling
Wassup guys, Napalm, I have done crotale's ocp mod already, i'm getting the volts that I should be getting, loading at 1.38 now, but i'm still getting the red screens. I thought crotale's mod would fix that . I'm going to solder a 700 ohm resis for the vdiff but will that help the ocp? Like I said i'm getting the volts u guys are hitting but I still can't push my core or shader clocks any higher. Oh well i'll get figured out hopefully.
My clocks are 742/1650/1386 and that's all I can get at the moment
wasssup muledeer
man you should be doing 1485 mem after ocp mod not just 1386.. most likely youre hitting temp sense
you shouldnt be getting red screens @ slightly above those clocks unless for extreme loads @ stock cooler given the vgpu.. stock cooling ??
ocp mod doesnt fix everything.. you still got temp/volt senses to worry about
i want to make sure you guys do the ocp mod properly if/when not following crotales guide
yellow encircled red point to ground
http://i45.tinypic.com/312ibld.jpg
note: use fixed 10 or 100 or 1000 ohm resistor whatever you guys are comfortable with
Wassup guys,Napalm, I hear what ur saying on the temp issue but at what temp does that kick in, i've been running some tests and my card is crapping out before it reaches 65c I just finished stressing at 770/1700/1425 and I didn't get the colored screens it just froze.I'm using ati tool and I was getting artifacts and then it froze. I suspect I have a problem w/ the ocp mod itself, maybe it's not making proper connection but i've looked at it under a magnifying glass and it looks ok but remember I am a noob at soldering. I think i'll redo the mod to see if that helps. I also want to thank u guys again for your help :up:
muledeer
how are you mate ?
this is W7x64 using 195.62
I have the same problem mod is correct..but mine kick over this that are my very stable settings...this combo of core/shader/mem is the faster i have
http://img121.imageshack.us/img121/6...7178214853.jpg
I used GPUTOOL to scan max settings and went fine till that at 1,37vgpu/2,2vmem LOAD
Cheers :up:
Sergio
Merry Xtreme Xmas to all from South America :up::up::up:
Cheers
Sergio
Thanks sergio, I think i'll replace the 150 ohm resis I have for the vgpu with a 200 maybe 250. This will reduce my voltage, correct. I know i'm close with running very good core clocks, but I don't think my memory is up to the task. I think it's a heat problem. I want to buy a wb for the card but money is more than tight at the moment :( Maybe santa will bring me one for Christmas :p:
Merry Christmas everyone :up:
muledeer
temp sense kicking in depends on the cooling.. it may kick in @ any temp
your core/shader is more affected by temp than the mem
after ocp mod your mem should run @ 1485 regardless of the core/shader clocks and temps
give the ocp mod another try
btw atitool and the likes is just a toaster good for burning in gpus not to test oc clocks
better to use games/benches to test how far you can oc
merry christmas :toast:
Another report guys, I finally got the vdiff mod penciled down to 275 ohms, took a small dremel grinding wheel and very carefully scored the top and 4 or 5 strokes w/ the pencil i'm down to 275. Thanks napalm for mentioning the coating on the resis :up: Unfortunately i'm still getting colored screens. Oh yea, I redid the ocp mod to make sure I had good contact. I also lowered voltages a bit to load at 1.35, trying to get under the 1.37 limit sergio mentioned, still no luck :confused: I know these mods work, I can see the results in volts etc. but it seems my card just doesn't want to respond. I'm going to do more testing on just the mem clocks and see what I get. Later for now.
Major problems, I decided to reversre the mod and go back to stock. I removed the resistiors and now my card won't respond. I checked the volts and it is only getting 0.03 volts :shrug: I hope I haven't bricked my card :mad: Anyone have any ideas
I removed the mods because I was getting colored screens even at stock speeds, I removed both resistors and cleaned the lead from the pencil and no response, I don't know what is going on. I'm getting ready to order a 5770 to hold me over until I figure it out. Heck I might even crossfire them and have an upgrade :D
I did't do crotales vgpu mod only the ocp mod All I have done is napalms vgpu mod crotales ocp mod and the vdiff pencil mod
muledeer
dont worry its not bricked.. how can you brick it.. even if you want you cant.. 285s defenses are impenetrable!!
- step 2/vdiff mod: clean the resistor + the other resistors around it really well with alcohol rubbing
measure the resistance of the resistor.. what is it ??
- ocp mod: @ ocp point if you removed more than needed to be removed your 285 will not boot.. is that the case??
step 2 worx better with better cooling than stock actually all these vmods
stock cooling: step 1 + ocp mod
better air/water/phase cooling: step 1/2/3 + ocp mod
multi phase/ln2/helium cooling: crotales vgpu/ocp + napalms steps 1-3
When I removed the pencil on vdiff mod the resis measures 1800ohms. Remember I scored the top of the resis I think that might have something to do with it and yes when I removed the ocp mod I did removed the small dot ofsolder that was there, cant seem to get it back either would that cause the card to not boot? I've ordered a 5770 to hold me over until I can get this running again. I'll keep rying to get a little solder back at ocp point and will post updates
first post update to include:
Quote:
before any further my cooling to vmodding recommendations
stock cooling: step 1 + ocp mod
better air/water/phase cooling: step 1/2/3 + ocp mod
multi phase/ln2/helium cooling: crotales vgpu/ocp + napalms steps 1-3
I did get that resis penciled down to 735 ohms but still no boot should I keep fidling with tha area
the boot issue is not from the resistor
heres the fix
connect whatever is left of the ocp point to the resitor in the blue encircled area
http://i46.tinypic.com/2uzqaae.jpg
Thanks napalm ill give it a go
you may not get it the first or second time.. dont stop till your 285 boots
drop a load of solder to connect the very small point to the resistor
use lead/wire if you have to
if/when connection actually made between the two your 285 will boot again :up:
muledeer
its finesse work because your fixing a disrupted trace due to the removed pad
use the iron as a painter uses the paint brush
start @ ocp point and brush brush brush (as many times it takes) solder towards the resistor.. once you get solder brushed from the point to the resistor.. its traced and your 285 boots again
Ok, here we go,
As i said before i've done the 1.26v mod with conductive ink as explained
GTX xfx 285 "vanilla"
I've read my voltages load (MW2)
GPU - 1.20v
MEM - 2.10V
Nothing more, nothing less
Any idea?
as i have said it 100 times ill say it 100 times more if i have to.. if voltage doesnt increase after bridging @ step 1 your modding is unsuccessful
if conductive ink doesnt work for you.. you got to resort to soldering by using solder/lead/wire to bridge
use the iron and solder per my above post (post#647)
its a good way to learn soldering/get better @ your soldering skills.. if you get the hang on how to paint with solder your soldering is coming of age :up:
Hi NapalmV5
It's not my 1st time vmodding (conductive ink, solder, pencil, whatever)
Done a lot of those since Riva TNT :D, i've lost the number :up:
Right now it's bridged 1,2,3,4,5,11
If i bridge 1,2,3,4,11,12
If i bridge 1,2,3,4,5,11,12
Always the same result, 1.2v load
I even bridged the "factory" one's.
I didn't read the default gpu/vdimm default, any idea ?
edit:
I've re-read the initial post and you can see that Demo had the exact same issue voltmodding a "vanilla" model
post #349
post #345Quote:
So i did 1/2/3/4/11/12 , now im only getting 1.20 vGPU and 2.11 vMEM. this is a vanilla Palit GTX285,so i think this mod is a no go for me.
post #366Quote:
As posted earlier my default vGPU is @ 1.12 - 1.13 , a bit far from the 1.16 default.
I bridged #2 only and im now getting 1.19v , still a little far from the 1.23 stated my vMEM reads 2.10 though at stock though.
so 1/2/3/4/5/11 is 1.26 vGPU, while 1/2/3/4/11/12 is 1.26vGPU + 2.15vmem right?
post #368Quote:
Temps did rise, but its not hitting 90c or 100% fan speed when gaming.
The mod gave me 1.20v/2.11v , my defaults are at 1.14/2.10 and i didnt get any better gains with the added volts so i just undid the mod, a bit far from the 1.26v/2.15v expected.
Any idea's why my card comes with lower volts?
post #371Quote:
My voltages seems to fixed at 1.13-1.14 when my clocks kick into 3d, this is regardless of the application running may it be Ati tool/furmark/3dmark06/vantage/warhead/DoW2/warcraft 3. Its also been stated that defaults are 1.16v and not 1.14.
With the mod i still get the same fixed voltage 1.19-1.20 ( rarely drops to 1.19 ) and 2.11v , does not change with the said applications/benches above.
post #376 (tested 2 different vanilla's in this case)Quote:
1/2/3/4/11/12 as stated by nalpamv5 that gives 1.26v/2.15v , my def voltage under load is 1.13-1.14 in all tested games/bench. bridging 2 bumped me up to 1.18-1.19 , bridging 4+12 gave me 1.20 and 2.11
Vanilla 285, Palit brand.
Read through page 1 to 9 and it seems that im the only user that has a lower default VID and im also getting a lower volts from this mod.
EDIT:
Tried 1/2/3/4/5/11 now and i get the same 1.20vGPU and no increase on the vMEM (as expected ) no real gains on the core speed, any last tips before i remove this mod ?
Quote:
Asked my other friends with a GTX285 vanilla, Palit and Inno3d both cards also came with a 1.13-1.14 stock voltage, so 1.15-1.16 may not be the reference voltage. I also pointed them to this thread and they got the same results i did. 1.20vGPU / 2.11 vMEM.
EDIT:
Our cards also idle at 1.03vGPU and 2.08vMEM
and Chispy for example tried in a vanilla and could achive 1.26v
Quote:
Finally , i did the mod on my vanilla eVGA GTX 285 on stock cooling , bridge 1,2,3,4,11,12 = 1.26v .
Results running 3DMark03(Dont mind the score i was using one of my spare rigs to test the card with a P4 )
100% Stable playing FarCry2 for 3 hours at this clocks 783/1728/1404Mhz too.
Weird at least no ????
if its not your first time modding why bother with conductive ink..
you guys see what is being used to bridge.. 0 ohm resistors
on the front of the card.. how many vid diodes (D14 thru D21) your 285 has and which numbers are occupied ?
D14 D15 D19 ?? if so only bridge vacancies @ 1/2/3/4/11/12
Did you check the edit in the post above ?
About your question is easy... if i'm stock cooling with bother making a hardmod if it's faster with conductive ink ?
Gonna remove the heatsink and see that.
already tried, 1.2v load, mentioned 2posts aboveQuote:
if so only bridge vacancies @ 1/2/3/4/11/12
1. remove the cooler and lets be certain its d14 d15 d19
2. if you got d14 d15 d19 as all 285s based on this pcb do then your conductive inking is not successful
if you want to stick to conductive ink you got to redo your inking until it is successful
soldering+solder is much faster and ~100% effective
up to you
My vid area...
http://i49.tinypic.com/2r55a4i.jpg
you see why: only bridge vacancies @ 1/2/3/4/11/12 (d14/d15/d19)
if properly bridged you get the voltage in the right neighborhood always
if you want/need a bit more voltage.. plant a diode @ d18 + bridge 9 and 10 for total of 4 diodes/8 bridges
Yeah i see but...
Tried with solder and liquid silver...
1/2/3/4/11/12 - 1.19v
1/2/3/4/5/11/12 -1.20v
No matter if liquid silver/solder
Check conductivity in both cases and the resilts are the same...mod working but only 1.2v max
Gonna try the hard mod (vgpu/vmem/ocp)
Regards.
heres the fix.. which im also gonna replace step 2 with
this little bastard is the reason why some of you are @ 1.2vgpu after bridging (resistor @ over 10k)
this little bastard is the reason why some of you are @ 1.3vgpu after bridging (resistor @ under 10k)
this little bastard is the reason why solid color screens still kick in after ocp mod
http://i47.tinypic.com/5bvj2w.png
i dont need any confirmation but which one/couple of you would like to confirm this mod for others ?? thanks
first post revised/updated.. happy ocing your 285s :toast:
Mates
I wish you my best from South America and a better 2010 for all, in this awesome thread, thanks to my mates cryptik, jor3lbr , napalmv5 , leeghoofd , OC Nub and so others for the big help always, let us 2010 brings us peace, love, and better and faster hardware :D , of course that can always be modded :D
This years has been special for me as 2010 will bring my first kiddo Valentino
here you are meet him
http://img130.imageshack.us/img130/747/valentino1.jpg
Cheers to all :up:
Sergio
You miss understood me m8 :rolleyes:
What i meant to say is that having 1.35v stock cooling no matter the kind of mod i guess it's too much, don't you think ?
With the one posted by crotale we can regulate the volts as we want.
If i could get 1.25/1.26v like posted by you it would work like a charm...you can see that i tried that mod first not the other way :up:
I'm gonna measure the resistor default and see the increment of voltage in small steps :up:... maybe possible ;)
oh i got you clear.. yesterday you got on my nerves with your inking.. but once you confirmed with solder i came up with a fix/mod.. now you just want to piss me off.. fine no problem
if all these steps cannot be regulated the way you want why bother with these mods then ??
to those of you that want to do step 2 you dont have to drop resistance down to 5k straight.. you can start @ 9k and lower from there
Because everybody except me and Demo gets 1.25/1.26v load with your mod and that's the voltage i want 24/7 - Simple As That!
In my opinion above 1.3v is too much for stock 24/7 but as i said before i'm gonna test your way (the method you posted with my pic) and see if i can get that voltage.
Thks for the help.
andressergio
Best of luck in 2010 and be patient.... hopefully it will be full of health and very funny :up:
FYI every vmod ive posted is adjustable.. can be regulated to your liking.. can be regulated to your cooling
what dont you understand about my vmods ??
read this again if you have to about the new step 2 mod:
only if you attempt the mod youll understand why it works if you dont nowQuote:
this little bastard is the reason why some of you are @ 1.2vgpu after bridging (resistor @ over 10k)
this little bastard is the reason why some of you are @ 1.3vgpu after bridging (resistor @ under 10k)
you want 1.25-6vgpu?? how many variations you want ??
after step 1 (1/2/3/4/11/12 bridged) you can adjust the resistor @ step 2 to 10k ohm and get that voltage
if the resistor is already @ 10k than lower (maybe 9.7k 9.5k?) resistance until 1.25-6vgpu is achieved
or
after step 1 (1/2/3/4/11/12 bridged) skip step 2 do step 3 @ 100-150 ohm resistor and get that voltage
simple as that!
and i can give you several more diff ways on how to achieve that voltage
With 30C outside summer here i used my portable AC to push 10C to the rad, room ambient was at 23,2, here are some results :up:
http://img152.imageshack.us/img152/3891/p10304981.jpg
http://img51.imageshack.us/img51/778...7178214853.png
Cheers all
Sergio
Hey Guys :)
i need a vgpu mod and maybe ocp mod for my Inno3D GTX285. PCB is rev2 like the EVGA Vanilla. http://www.xtremesystems.org/forums/...&postcount=461
Found OCP here: http://www.xtremesystems.org/forums/...&postcount=498
But still looking for vGPU Mod :/
Would be great if you could help me with it :)
I have a couple of questions:
- on first picture (page 1 of this thread) of Napalm mods there is a 10 ohm resistor connected to ground labeled OCP mod, from same point of Crotale mod but he suggest a 15 kohm resistor. Why this difference?
I put a 15 kohm between Crotale point and ground but sometimes I have OCP triggering in, even at 1.29 V. Which resistor value do you suggest?
- I connected also the 150 ohm resistor of Napalm mod #3 to ground (mod #1 and #2 already done) but I have only 1.29 V. Can I lower or increase this resistor to get more volts, i.e. around 1.35?
Thanks in advance and bye.
sup mate happy new year
yes but crotale suggest a 100k vr, and tuned to 15k i got mine tuned to < 1k and if if go over 821 or raise vgpu on more than 1,4 i get same triggering, we where talking to napalm and not 2 cards are the same and maybe other thing triggering...
what i did as you can see on my clocks thats my gamming clocks, but benched on 4700mhz Q9650, i used GPUTOOL to find max core/shader/mem at my 24/7 4500mhz and that was awesome as those clocks are the perfect combo any variation i get lower scores and FPS...i did that at 1,36vgpu load and 2,2vmem load
Cheers mate
Sergio
you got to do step 2
Quote:
heres the fix.. which im also gonna replace step 2 with
this little bastard is the reason why some of you are @ 1.2vgpu after bridging (resistor @ over 10k)
this little bastard is the reason why some of you are @ 1.3vgpu after bridging (resistor @ under 10k)
this little bastard is the reason why solid color screens still kick in after ocp mod
:up: ocp modQuote:
step #2
- this step is a must after step 1^ if only 1.2vgpu is achieved
- lower resistance (ex: by pencil) to 9K ohm at first then lower from there
- mod increments vgpu ~1.3-1.38
http://i47.tinypic.com/5bvj2w.png
i gained @ 10k ohm resistor/i gained @ 1k ohm resistor/use whatever fixed resistor you got between 10 ohm and 1000 ohmQuote:
i want to make sure you guys do the ocp mod properly if/when not following crotales guide
yellow encircled red point to ground
http://i45.tinypic.com/312ibld.jpg
note: use fixed 10 or 100 or 1000 ohm resistor whatever you guys are comfortable with
sure you can try a 100 ohm resistor @ step 3
I have modified the 2 resistances: 100 ohm for mod #3 vgpu and 22 ohm for OCP.
The Vgpu raised to 1.31 V but unfortunately the OCP protection is triggering the solid color screen very often.
I checked many times the soldering and connection and everything seems good.
I wonder why the OCP is triggered with such a low resistor value (22 ohm).
Tomorrow I recheck everything and I will try 10 ohm. :confused:
rev2 vgpu mod already posted @ crotales thread
sorry i wont post anymore vmods
heres updated rev2 ocp mod
http://i47.tinypic.com/jg40pd.jpg
pic by chispy :toast:
idle or load voltages ^ ??
- step 2.. clean the area and surroundings around the resistor if you used pencil.. residue @ other components decreases vgpu
- redo step 2/lower resistor resistance down to 5k
- instead of solid screens after step 2/ocp mod you get freeze screens
step 2 worked on 2 diff 285s.. should work on other 285s aswell
idk what cooling youre doing but keep in mind temp sense also kicks in depending on the cooling/load/temp
if all else fails.. increase your cooling
good luck :toast:
and dont worry guys.. fermi is coming shortly and you wont have to bother with hard vmods anymore.. all soft :up:
Ah great, found it there :) Thanks!
Just wanted to thank NapalmV5 & the others who have contributed to the thread, lurked my way through & got my cards modded up, finally broke 30k with 2 gpus.
http://i775.photobucket.com/albums/y...es/0630666.jpg
Thanks again for suggestions.
Naturally I mentioned full load voltages.
I will clean the area and redo the mod #2.
Unfortunately, even with OCP mod using 22 ohm, I have solid screens, mostly completely grey and PC full locked.
This evening I try again and I hope. :)
About Fermi, it seems will be very fast but produced initially in low numbers (high price) and warm like a little oven :D
I do hope that it will mount a Volterra or similar I2c programmable VRM controller. :)
Good! :yepp: I read the data sheet and by sure is programmable. I hope that the nvidia reference design will use the 3 SMBus pins and not only the VID ones.
Yesterday night I spent about 4 hours to test mods on my VGA and I found:
- pencil mod #2 is not effective in my system. The resistance is 10.1 kohm and lowering it till 5 kohm I gain about 0.01 V.
- 150 ohm mod #3 is giving +0.04 V. With 100 ohm I have +0.07 V. With 70 ohm the voltage chip goes in protection mode (0.06 V).
- mod #3 seems not to consider Crotale OCP mod. I mean that if you use mod #3 to raise Vgpu, even with a 10 ohm resistor on OCP point indicated by Crotale, OCP is triggering in.
As yesterday I cooked my eyes, I am waiting for new Fermi design with a soft modifiable VRM controller. :D
Just cleaned up my gtx285 mod and I want to share. Initially I had the points bridged with solder only, but it seemed half-assed IMO.
So, this morning, I cannibalized an old sprint cell phone (circa 2001) to get some zero ohm resistors of the correct size.
Here's what I got... (blue resistors are the ones I added)
Please pardon my amateur soldering skills as well. I only have experience making rc car batteries and working on far bigger stuff.
http://i213.photobucket.com/albums/c...d/IMG_0477.jpg
http://i213.photobucket.com/albums/c...d/IMG_0474.jpg
http://i213.photobucket.com/albums/c...d/IMG_0472.jpg
From looking at it, I am guessing the soldering iron tip I used was a little too big as well. Just proximity seems to have made a mess of the pcb near the vmod.
I used a 25w cheapo weller and a pin for the mod.
I bridged 2, 4, and 5. This gave me a bridge on 1,2,3,4,5,and 11
All said and done, under load, I achieved 2.13v mem and 1.22v core with the mod. Idle is 2.11v mem and 1.05v core.
Thanks. I did have solder bridges on it, but I think this looks so much better. They were kinda blobby looking.
Thanks for the tip, but I think I am going to keep it where it is for now. I don't expect to get much more of a gpu overclocking itch any time soon. I'm really happy :D with where my system is at the moment. I know that's not the "Xtreme Systems" thing to say...:ROTF:
It's working perfectly for my needs. I am running FTW flashes on both cards. I can get them up to 780 core-1687 shaders-1440 mem
They're under full cover koolance blocks, in a dedicated gpu loop, so heat won't be a problem.
Thanks andressergio :up:
Guys, quick question - I picked up a used 285 with the step one mod already bridged. However, once I get past a certain clock (774/1620/1404), I get a solid color screen under load. My temps are acceptable, top out at 52c with crysis. No artifacts or anything, just a solid color screen out of nowhere, windows does not freeze. any ideas? I think this may be OCP, right?
Well I penciled it down to 8k ohms and then to 7k ohms, yet my load Vgpu is still 1.215v...
Yep, 5k and still 1.215v. Any ideas?
Step 1 is bridged with conductive ink (how I got it), but there is no resistance between the pins... I can re do it with solder, but i'm lazy and am pretty sure that's not the cause.
some 285s dont gain as much as others from step 1
still give solder a shot :up:
lazy?? no gain!! :)
- remove the ink
- leave it as is and measure vgpu @ load
- solder vacancies @ 1/2/3/4/11/12
- measure vgpu @ load
^ you tell me kain/anyone.. cause i certainly didnt use magic pencil @ step 2 to increase vgpu.. just your ordinary #2 pencil
1st 285 i got .05v increment
2nd 285 i got .08v increment
anyways.. if step 2 doesnt work for you..
heres the new step 2 vgpu mod
step #2
- for those of you that dont want to do step 1
- bridge 2 vacant from factory
http://img194.imageshack.us/img194/1438/84578361.png
- for those of you that dont want to do step 1
- 1/2/3/11 bridged from factory
http://img30.imageshack.us/img30/497/50058809.png
- for those of you that still want to do step 1
- for those of you not gaining much @ step 1
- for those of you that have already done step 1 and want to take it a bit further
- 1/2/3/4/11/12 bridged
http://img194.imageshack.us/img194/8233/92925480.png
Very interesting.
On WE I decided to try Crotale voltmod but if it fails or I am not completely satisfied, I will try your new step #2. :)
its not a new vmod.. been posted for a year over here
http://www.xtremesystems.org/forums/...0&postcount=66
Resoldered the connections, still 1.215-1.216v under load... darn darn