GTX285 various mods.. which may work for GTX260/280/295 also

[azcrazy]

well after some clocks s try outs im able to run my shaders @ 1728 with a temp of 42ºC, no bad ,ha?

[Open1Your1Eyes0]

I have a GTX285 with parts missing (circled in red). Can you tell me what they're rated for (resistance/capacitance) and how I can return it to stock?

[azcrazy]

I have a GTX285 with parts missing (circled in red). Can you tell me what they're rated for (resistance/capacitance) and how I can return it to stock?

They are no missing they come like that from factory

Those are the OCP mod , you use some conductive ink and it will increase ur voltage ,which will help u get better clocks , with my 285 i got up to 810/179x/1450, and u may try using the 12th one as well

[Open1Your1Eyes0]

They are no missing they come like that from factory

Those are the OCP mod , you use some conductive ink and it will increase ur voltage ,which will help u get better clocks , with my 285 i got up to 810/179x/1450, and u may try using the 12th one as well

No, I'm saying that those parts ARE missing on my card and it doesn't work cause I got it like that. That's not my card I used it as a reference pic.

[NapalmV5]

Open1Your1Eyes0 - sorry for being late responding.. been busy lately..

for all the missing resistors (blue+black in the ref pic) you can short the points with solder

hmm whys the smd cap missing.. dont have 285 anymore.. maybe someone here may tell you the value

if you want stock voltage: just have 1/3/11 bridged + black resistor

[Open1Your1Eyes0]

Open1Your1Eyes0 - sorry for being late responding.. been busy lately..

for all the missing resistors (blue+black in the ref pic) you can short the points with solder

hmm whys the smd cap missing.. dont have 285 anymore.. maybe someone here may tell you the value

if you want stock voltage: just have 1/3/11 bridged + black resistor

Actually I found out that at stock, those green resistors don't exist and the contacts are not connected. That photo was confusing me. I did short the black resistor but the orange capacitor at the bottom right is still a mystery to me. The one above it was broken so I had to desolder it as well. I'm getting 0.3v for some reason at POST and the card still isn't working.

[Orangeblast]

I hate to bump an old thread, but I'm curious. Its been some time since I last posted or even viewed this thread. I think about a year now....anyways now that I've revisited it I noticed some new developments. Mainly possible fixes to the issues I had when doing Napalm's mods to achieve better voltage. I never achieved anything higher than 1.24 on my cards...I never got to 1.26+. However after viewing this thread again, it would seem that there is another resister that Napalm found that needs to be penciled in order to drop ohm. He mentions that penciling in this spot will fix solid color screen locks (which is something I get alot) and also it will fix those who were not getting higher voltages after step 1...like me.

So has anyone done the new version of step 2? Does if fix results? Is this something I should do to achieve higher than 1.26 volts and fix my solid color screen lock ups?


I'm talking about his post here: http://www.xtremesystems.org/forums/...&postcount=658

[NapalmV5]

for me that link^ was a cure for solid color screens

step 2 definitely increases vcore.. though both vcore and cooling is the cure and cause for solid color screens.. a balance you have to find even after ocp mod

id say just sell your 285 and get a 480 and enjoy vcore mod via soft

[Orangeblast]

hah, I'd love to go and upgrade right now...but I'm in no position to do so

how low do I have to get that resistor/part? How many Ohms?

I'm on water so temperature should be okay, my max is around 46/47c on load. ...the solid color problems are VERY annoying.

I need to get it fixed!

thanks!

[Orangeblast]

Hey Napalm, for step 2, it is safe to pencil in resistor to 10K ??

thanks

[Orangeblast]

Well I know this is kind of a dead thread, but I am now seeing 1.28 to 1.29 vGPU now...vMEM is also better....my overclocking has improved. Though I am now running into a weird problem...a problem that I've seen happen before on my cards before mods....where the screen will split and freeze. I have SLI. Its a strange issue, I don't know what causes it...the screen with split. I'll keep at it.

[andressergio]

Sup Orange i dunno about the SLI as i never used but i followed Napalms mods and also Crotales and worked as a charm my BFG GTX285 H2O OC still rocking at nice 803/1792/2970 my game clocks

817/1792/3000+ for bench, over that i get solids even with mods




Cheers
Sergio

[Orangeblast]

A reply! Hey!

Nicely done!

I have no soldering skills so...I have to pencil everything. My mods with the GTX 285 end with Step 2....I can't do the OCP or whatever mod...no skills

My temps are friggen great! but my cards are poop...at 1.28/29 volts...I'm not even stable at 775/1748/2800 ...I have to back it down quite a bit.

[NapalmV5]

ce stubborn orange! sorry for the late response.. thanks sergio

orange the 10k resistor i lowered to 5k and solid color screens were gone

give it a try it might help you

but if you want to gain more clocks youve got to do crotales ocp mod

use a ~1k~ resistor the way i did the ocp mod @ 1st post.. its easier

[Orangeblast]

Thanks Napalm! I will give that a shot...I'll take a look at the OCP mod, I'm not sure I can pull it all off with no solder skills

I'll try 5 ohm on resistor as well. I found it super easy to bring down resistance on that one.

[Orangeblast]

Napalm

I lowered Step 2 resistor to roughly 5 ohms as you mentioned and now I'm seeing much better results with overclocking. I'm now at, what seems stable.... 765/1725/2800

I know, not the best compared to you 800 core guys...but I was having issues trying to get it stable before....lowering to 5 ohms did the trick so far.

I can run 3 loops of Vantage without issue.

I'm eyeing the OCP mod...but to be honest, I'm truly contemplating just going GTX 480 with water.

uhg...money. Computers are such money pits. haha

[asoccerplayer99]

This thread is precisely what I was looking for, thanks for all who put in the hard work to make it! I have a question though- I have two MSI GTX285's, and while looking for a way to up the voltage and get above 680MHz core, someone on a different forum mentioned black versus red trim on the cards and that there were different ways to volt mod each. Looking at the pics in this thread, everyone has a black PCB, but mine is red.... can I still follow the guides here for my cards?

[Orangeblast]

Napalm,

I don't get it...I was getting good results when getting Step2 resistor down to 5 ohms...but I still get solid color screen and freeze. I was able to run countless Vantage loops...and also did furmark and OCCT Gpu testing...and no solid colors, but the minute I load up a game and play for a few minutes, BAM! solid color / freeze.

Do I have to go even lower than 5 ohms on step 2 now?

it's so annoying.

[NapalmV5]

orange youve got to do the ocp mod and step 3

since youre on water increased vcore from step 3 will help

do the ocp mod + step 3 and youll take it further

have someone do it for you

[andressergio]

ce stubborn orange! sorry for the late response.. thanks sergio

welcome napalm

[RaZORX]

Hay everyone...I have one problem with my XFX 285gtx xxx

I did silver mod and bridged 1/2/3/4/5/11 and I only got 1.22v ....But when i ONLY bridged 1/2/3/11 got same 1.22v .....try many combination but cant get higher(also try pencil resistor ) :S ....why is that? is this OVP?

[andressergio]

Hay everyone...I have one problem with my XFX 285gtx xxx

I did silver mod and bridged 1/2/3/4/5/11 and I only got 1.22v ....But when i ONLY bridged 1/2/3/11 got same 1.22v .....try many combination but cant get higher(also try pencil resistor ) :S ....why is that? is this OVP?

my card had the same so i went direct to the full vmod...

[RaZORX]

Do you know why is that?? Is that only on newer revision card(PCB) or something else?
I dont wona do a hard mod because varanty void

[andressergio]

Do you know why is that?? Is that only on newer revision card(PCB) or something else?
I dont wona do a hard mod because varanty void

guess a design thing saw many ppl doing the basic vid mod and getting difs volts, in ma case i have a BFG GTX285 H20 OC stock 729/1674/2780 loaded stock was 1.18vgpu and did the mod and get 1,21ish...so i went for the real thing and im gamming at 803/1792/3000+ vgpu 1,38loaded and vmem stock

Cheers
Sergio

[RaZORX]

Nice ...yes the only way to go is hard mod