8800GTS 512Mb (G92) vMods

Inspiration from largon's work on 8800GT :)

http://img.photobucket.com/albums/v3...0GTS-vMods.jpg

http://img.photobucket.com/albums/v3...GTS-vMods2.jpg

yup! same as GT :D

Let us know how you get on with clocking! :D

Note difference between the GT and GTS at the base of the 1K VR there...

To account for GTS default voltage being higher? :)

Absolutely no idea, but i just noticed it was different to the photos of GT.
People have been asking about teh differences between the two, particularly the extra power phase etc.

nice clean mods, thanks :)

Nice, can you send the BIOS i think there should be a vmod via BIOS :)

So stock voltage is 0.05v higher than the GT with bios mod, interesting.

How does the memory overclock? Better than The GT?
I am thinking of getting one of these cards, but i might just get the standard GT if its not that much better.

working OVP mod will be important here as well right tim?

excellent pics and best to see someone actually have the mods done as well in guides :)

Nice done :)

Nice pics ANd nice to have examples of value for VR and voltages !

Please note that after playing with these mods last night, i wish to revise my mod to a 500 Ohm VR for vGPU.
1K makes voltage jump up too quickly once you are about 1.35V+ (very small turn can go up too much volts).

I got my card today- 300 ohms would work well too :)

Quote:

---

Originally Posted by K404

I got my card today- 300 ohms would work well too :)

---

push it Kenny push it :D

Hey Bala :D I will, dont worry! The package is in the UK now ;) Hopefully get it tomorrow, and real benching will be on Monday :)

The pic in my GT guide has some extra components that are not found on retail G92GT cards - components like the 8-legged IC under the Primarion vGPU controller that T_M referred to. Thus I believe the cards & mods are identical except for what comes to the missing phase.
btw, what GDDR chips does the GTS have? Are they Qimonda 1.0ns?

Quote:

---

Originally Posted by K404

Hey Bala :D I will, dont worry! The package is in the UK now ;) Hopefully get it tomorrow, and real benching will be on Monday :)

---

great news :D have fun with it ;)

i will do the mods and some benches around the weekend too :)

Havnet pulled off HSF yet but that's happening tonight or tomorrow.
Ive seen photos of the memory elsewhere though so look around.

EVGA 8800GTS-512 doing pretty well.

vGPU: 1.275v
vMem: 1.936

Core: 864
Shader: 2106
Memory: 1134 (2268!)

3DMark'06: 15,156 with E6600 @ 3.666

36C loaded.

:cheers:

http://img70.imageshack.us/img70/801...dpointssk5.jpg

http://img512.imageshack.us/img512/7...oltmodsgd3.jpg

Theres mine :) I know the readpoint wiring is completely impractical, but its "just" for benching.

:D :up:
very nice work!

have you guys looked into that OVP mod that one of the guys in 8800GT thread figured out by unsoldering a couple of things around that Prix@#^@%#*^@ chip whatever the actual name is heheh

i also wonder what the actual OVP for this card is?
seems it is definitely higher to GT

EDIT: removed for being utter nonsense

I hadnt looked at it until you pointed it out so...thanks for the heads up! Im hoping it wont be an issue, but every pushed back ceiling will help me.


@ Bala: Cheers bro! Are you all ready to bench as well?



big OT: I was gonna be benching tomorrow, but delayed it till Monday. I was hoping to be the first to publish frozen GTS clocking...I think il be beaten to it now! :(

Quote:

---

Originally Posted by dinos22

have you guys looked into that OVP mod that one of the guys in 8800GT thread figured out by unsoldering a couple of things around that Prix@#^@%#*^@ chip whatever the actual name is heheh

i also wonder what the actual OVP for this card is?
seems it is definitely higher to GT

---

i will try on both my v modded 88gt and 88gts 92 this next few days
but air(zalman vf-1000) is my limitation.


and great work on the mods all:up: i love this kinda stuffs

Mine will be frozen Saturday and Sunday :)
Any OVP developments i'll update here.

K404, if you were planning to use insulation then you might want to revise your readpoint locaiton becasue that area needs foam on it.

Yea, been thinking about that. Still to test the pot placement. Might need to add in some insulation for the back of the card. :down:

Good luck with the benching T_M ;) I hope you get the MHz and results i think this card of capable of ;)

Is the OVP protection still kicking in at the same 1.35v as the GT? If not, What clocks are you all getting with 1.4v plus?

I must have missed somthing, this is the first time i se 8880

Quote:

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Originally Posted by Nosfer@tu

I must have missed somthing, this is the first time i se 8880

---

Prolly a mistake.

fixed

This is my result:
1.36 volt, GPU only.
http://img75.imageshack.us/img75/2772/gtsvmodeb7.jpg

try running higher shaders as they impact performance a lot

What is the stock voltage for the 8800 GTS/GT? Moreover, is there a BIOS volt mod for the GTS?

Quote:

---

Originally Posted by tranceaddict

What is the stock voltage for the 8800 GTS/GT? Moreover, is there a BIOS volt mod for the GTS?

---

1.15V stock voltage for GTS . No bios mod can give you higher vgpu.

great work Tim !! :up:

Thanks for this mod :clap:

Quote:

---

Originally Posted by K404

dont need to unsolder them, shorting them out with small pieces of wire will work :) Electricity is lazy- if it has a choice of a resistive path (resistor) or non-resistive path (bit of wire) it will skip the resistor totally. Thats assuming the wire has no resistance at all, which is only true in theory, but its "close enough" here.

worst case scenario: the wire and the resistor form a parallel resistive network, but the total equivalent resistance will basically be the resistance of the wire.

[/theory]

I hadnt looked at it until you pointed it out so...thanks for the heads up! Im hoping it wont be an issue, but every pushed back ceiling will help me.


@ Bala: Cheers bro! Are you all ready to bench as well?



big OT: I was gonna be benching tomorrow, but delayed it till Monday. I was hoping to be the first to publish frozen GTS clocking...I think il be beaten to it now! :(

---

please explain this to me a little more carefully...i really don't like obviously voiding my warranty and if what you say is correct then a simple stripe of conductive paint accross the top the the relevant resistors would achieve the same removal of OCP.
to my thinking removing the resister will not be the same as bridging it...removed the circuit should be broken due to connections literally missing and therefor almost infinate resistence in those circuits disables the OCP...however bridging the resisters with wire or paint will result in almost no resistence being offered and the circuits will remain intact...

so how is bridging the resisters anything like removing them?

please excuse if i've misunderstood the intricacies involved here as i have no electronic background whatsoever..

if anyone can work out how to disable OCP without voiding the warranty i'll be very pleased
(at this point i'm also not sure if these GTS512mb cards have the same capability in terms of removing OCP will allow LN2 voltages without further issue)

I too was confused by that comment.

so how is bridging the resisters anything like removing them?
its not two different things
remove no current at all
short 100 current floqw
so im lost on that comment as well

Glad it just isn't me but like everyone else I just about know enough to get by.

Shame really since I have a degree in electrical and electronic engineering. :eek:

I think that if you decrease resistance by soldering another resistor (or Cu wire) in parallel you are raising the OCP threshold. OCP won't kick in until much higher current flows. If you get the right value resistor in there you can raise OCP, but still allow some level of protection (probably a good thing). Just soldering a Cu wire or using a conductive pen will raise the OCP threshold to a level where you probably will never have to worry about it anymore.

Removing the resistor completely removes OCP.

Both end up giving you the same result, but do it in different ways.

This is what I've gathered from all my readings on here and other forums as well some PMs w/ some very knowledgeable people. I also have a B.S. in Computer Engineering. :p:

I don't know this to be fact, but it seems to make sense. In any case take it w/ a grain of salt. ;)

Quote:

---

Originally Posted by jason4207

I think that if you decrease resistance by soldering another resistor (or Cu wire) in parallel you are raising the OCP threshold. OCP won't kick in until much higher current flows. If you get the right value resistor in there you can raise OCP, but still allow some level of protection (probably a good thing). Just soldering a Cu wire or using a conductive pen will raise the OCP threshold to a level where you probably will never have to worry about it anymore.

Removing the resistor completely removes OCP.

Both end up giving you the same result, but do it in different ways.

This is what I've gathered from all my readings on here and other forums as well some PMs w/ some very knowledgeable people. I also have a B.S. in Computer Engineering. :p:

I don't know this to be fact, but it seems to make sense. In any case take it w/ a grain of salt. ;)

---

No stop confusing people. If you remove the resistor, the circuit is broken, and the primarion contoller never gets a signal from that circuit to trigger OCP so OCP is removed. If you short out the resistors, you would increase the signal the primarion controller gets, by lowering the resistance, and most likely lowering the OCP point. The card may not even boot. Do not bridge the resistors.

well one thing i thought of then..

would be grounding the ocp/ovp resistors.

however, the primarion might take it as infinite resistance or bridging the resistors since the circuit isnt broken.. only one way to find out :D

simple pencil modding the relevant OCP resisters will reveal if lowering resistence raises OCP kick in point...easy and usefull experiment.

i too wondered about grounding the OCP resisters but then though better of it :p

good luck ... maybe we see some even more serious clocks from these cores pretty soon...like 1200mhz or more :0

thanks for publishing your sub0 results with these NightRaven
it seems serious 3D benching just reached a lower price point...always a good thing :D

Quote:

---

Originally Posted by Timbosan

No stop confusing people. If you remove the resistor, the circuit is broken, and the primarion contoller never gets a signal from that circuit to trigger OCP so OCP is removed. If you short out the resistors, you would increase the signal the primarion controller gets, by lowering the resistance, and most likely lowering the OCP point. The card may not even boot. Do not bridge the resistors.

---

I heard from a very good source that soldering resistors in parallel (lowering resistance) would raise the OCP threshold. He specifically mentioned 4.2-4.7k for the 2 locations on the 8800GT. I'm assuming that bridging the connector would just raise the OCP threshold higher, and since someone posted that it worked for them it seemed logical.

Re-reading his email it seems that bridging is a bad idea after all as the regulator is also using that signal to keep the current sharing b/n the 2 phases in balance.

Soldering resistors in parallel seems to be the best way to gain more voltage headroom, and is the only way recommended to me by my source.

I do agree that removing the resistor will remove OCP, and I said that in my previous post.

Again I haven't tried any of this...yet, but I know my source has, and he confirmed the results.

My source: Viper John (thanks buddy!)

i may have been a little harsh, i just dont wanna see a post saying "i just bridged the resistors and burnt my card". Viper John does know his stuff, no question. However are you sure you arent confusing OCP with the OVP mod? In the OVP mod we decrease the resistance of a single resistor, to ~4.7k, as this increases the signal to which the real signal is compared thereby raising the over-voltage trigger point.
for this OCP mod, we are trying to decrease the signal sent to the primarion controller, rather than alter the signal to which it is compared, as we dont know how that system works exactly.

I looked back again to confirm and he has the 4.2-4.7k resistors in parallel w/ the 2 brownish resistors b/n the 78x & the 15b resistors...not the 78x resistor itself. So you were good to call me on it, b/c otherwise mis-information may have spread.

This mod will reduce the amount of voltage drop the OCP sees by ~25%.

This is the OCP, not OVP mod that I'm referring to, but it is on the 8800GT, not the 8800GTS-512 mentioned in the thread title. I'm sure the mods will be similar, though. The GTS-512 has 3-phase power, so I'm not sure how that affects it yet. I'm still learning!

Sorry for the confusion!

can a mod please move this GT talk to another thread?

Sorry if I seemed OT, but it seems to me that a mod for the GT will be relevant to finding a working mod for the GTS-512.

If soldering the 2 resistors in parallel as I described works on the GT, then it would seem logical to assume that doing something similar on the 3 resistors on the GTS-512 would work as well.

http://img248.imageshack.us/img248/4440/ocpxu7.jpg

The values on the GT were 4.2-4.7k, and I'd think similar values on the GTS-512 might work, but since the GTS-512 has a higher working voltage then a different value may be in order.

I'll leave it to you experts to figure out the values if I'm on the right track. Or maybe I'll hit up VJ and see if he's had time to play w/ this card yet.

Sorry if I pissed anyone off. I just got my GTS-512 yesterday, and I just wanted to see this card get tweaked before I took my soldering iron to it (this will be my 1st vmod on a gfx card). I thought I had some info that might help you guys reverse engineer this thing. I'm sorry if I mislead anyone or posted any mis-information.

[QUOTE=jason4207;2638524]I looked back again to confirm and he has the 4.2-4.7k resistors in parallel w/ the 2 brownish resistors b/n the 78x & the 15b resistors...not the 78x resistor itself. So you were good to call me on it, b/c otherwise mis-information may have spread.

Are you sure the 2 brownsih components are "Resistors"?? They looks like SMT capacitors to me.

Sorry again! Yes those components are SMC's, not SMR's.

Quote:

---

Originally Posted by flytek

please explain this to me a little more carefully...i really don't like obviously voiding my warranty and if what you say is correct then a simple stripe of conductive paint accross the top the the relevant resistors would achieve the same removal of OCP.
to my thinking removing the resister will not be the same as bridging it...removed the circuit should be broken due to connections literally missing and therefor almost infinate resistence in those circuits disables the OCP...however bridging the resisters with wire or paint will result in almost no resistence being offered and the circuits will remain intact...

so how is bridging the resisters anything like removing them?

please excuse if i've misunderstood the intricacies involved here as i have no electronic background whatsoever..

if anyone can work out how to disable OCP without voiding the warranty i'll be very pleased
(at this point i'm also not sure if these GTS512mb cards have the same capability in terms of removing OCP will allow LN2 voltages without further issue)

---

Quote:

---

Originally Posted by T_M

I too was confused by that comment.

---

Quote:

---

Originally Posted by cowie

so how is bridging the resisters anything like removing them?
its not two different things
remove no current at all
short 100 current floqw
so im lost on that comment as well

---

Quote:

---

Originally Posted by jason4207

I think that if you decrease resistance by soldering another resistor (or Cu wire) in parallel you are raising the OCP threshold. OCP won't kick in until much higher current flows. If you get the right value resistor in there you can raise OCP, but still allow some level of protection (probably a good thing). Just soldering a Cu wire or using a conductive pen will raise the OCP threshold to a level where you probably will never have to worry about it anymore.

Removing the resistor completely removes OCP.

Both end up giving you the same result, but do it in different ways.

This is what I've gathered from all my readings on here and other forums as well some PMs w/ some very knowledgeable people. I also have a B.S. in Computer Engineering. :p:

I don't know this to be fact, but it seems to make sense. In any case take it w/ a grain of salt. ;)

---

Quote:

---

Originally Posted by Timbosan

No stop confusing people. If you remove the resistor, the circuit is broken, and the primarion contoller never gets a signal from that circuit to trigger OCP so OCP is removed. If you short out the resistors, you would increase the signal the primarion controller gets, by lowering the resistance, and most likely lowering the OCP point. The card may not even boot. Do not bridge the resistors.

---

oh **** Im so sorry for that- do not short the resistors! I was utterly wrong with that information. I removed my comment. :shakes:

half-assed excuse: it was very early morning and I would have been tired.

Quote:

---

Originally Posted by jason4207

Sorry if I seemed OT, but it seems to me that a mod for the GT will be relevant to finding a working mod for the GTS-512.

If soldering the 2 resistors in parallel as I described works on the GT, then it would seem logical to assume that doing something similar on the 3 resistors on the GTS-512 would work as well.

---

where is this thread where he has soldered the resistors in parallel with the caps? i came up with the idea of removing the caps altogether, but never tried it, and n1ck r1mer thought of soldering VR's across the caps, but hasnt done it either (though we were talking about it concerning the G80 GTS)

It's not in a thread. John didn't want to post it online, so he sent it to me in an email.

Does anyone know if increasing vRAM voltage has any effect on the GTS-512? I know it had no effect on most GT's.

Also, how high can you increase vGPU before the OCP kicks in? I'm assuming it's a little bit higher than on the GT...maybe .05v higher? AquaMark3 seems to be a good test for OCP.

Should be easy if you can overclock a graca like a cpu in bios.

Quote:

---

Originally Posted by VETDRMS

EVGA 8800GTS-512 doing pretty well.

vGPU: 1.275v
vMem: 1.936

Core: 864
Shader: 2106
Memory: 1134 (2268!)

3DMark'06: 15,156 with E6600 @ 3.666

36C loaded.

:cheers:

---

Hi,

Are these the stock voltage of the evga 8800GTS 512mo ? or did you made the vmod for both ( gpu & mem) ?

stock voltages are 1.16/20.1V

(at least...they are for me!)

Quote:

---

Originally Posted by tomati

Hi,

Are these the stock voltage of the evga 8800GTS 512mo ? or did you made the vmod for both ( gpu & mem) ?

---

No, they are not stock voltages. I increased the stock vGPU and decreased the stock vMEM.

:up:

Quote:

---

Originally Posted by VETDRMS

No, they are not stock voltages. I increased the stock vGPU and decreased the stock vMEM.

:up:

---

Ok thanks ,

do you remember what O/C do you hit on stock ?

I ordered one evga, hope to get it next week.

Quote:

---

Originally Posted by tomati

Ok thanks ,

do you remember what O/C do you hit on stock ?

I ordered one evga, hope to get it next week.

---

I never had the card stock, I modded it the day it arrived before installing it.. :ROTF:

Stock: I'm at 771/1944/1062 on my GTS-512 at 100% fan stable for at least 25mins in ATI Tool, and made it through 8 loops of Battle of Proxycon (3DMark03). I consider this stable.

16190-3DMArk06 w/ 450x8 (3.6GHz) x3210 Quad, P5K-Premium, 2GB RAM @ 1125MHz 5-5-4-10 --> (24/7 stable).

I haven't tried to test for stability at lower fan settings yet.

Quote:

---

Originally Posted by jason4207

Stock: I'm at 771/1944/1062 on my GTS-512 at 100% fan stable for at least 25mins in ATI Tool, and made it through 8 loops of Battle of Proxycon (3DMark03). I consider this stable.

16190-3DMArk06 w/ 450x8 (3.6GHz) x3210 Quad, P5K-Premium, 2GB RAM @ 1125MHz 5-5-4-10 --> (24/7 stable).

I haven't tried to test for stability at lower fan settings yet.

---

You should be fine with the GTS-512 at 1053 in 03 BoP. Also loop 3Dm05 Canyon Flight as well.
My GTS would do 1134 in 03 BoP but craps it's pants in Canyon Flight at anything over 1107
memory and in the same manner as the GT's crap out in BoP.

Viper

Quote:

---

Originally Posted by jason4207

It's not in a thread. John didn't want to post it online, so he sent it to me in an email. I understand his concerns over in OCF

---

thanks ive got it sorted now, and similarly i wont be posting it lol. you can delete convo if you like.

:up:

I have found for the 320mb GTS, GT2 (firefly forset) in 05 & 06 to be the best test for ram artifacts. Also GT3 (canyon flight) in 05 is great for finding shader artifacts.
Reapeating nature in 03 is a good test for max gpu clocks, too high you will get lockups.
May also be the same for the G92 rev cards.

Quote:

---

Originally Posted by ViperJohn

You should be fine with the GTS-512 at 1053 in 03 BoP. Also loop 3Dm05 Canyon Flight as well.
My GTS would do 1134 in 03 BoP but craps it's pants in Canyon Flight at anything over 1107
memory and in the same manner as the GT's crap out in BoP.

Viper

---

I did 8 loops of CF in 3Dm05 w/ no issues at 771/1944/1062, so I guess that's one more test that is showing I'm good & stable at these clocks.

Now I just need to mod this thing, and see what it can really do!

Quote:

---

Originally Posted by Timbosan

thanks ive got it sorted now, and similarly i wont be posting it lol. you can delete convo if you like.

:up:

I have found for the 320mb GTS, GT2 (firefly forset) in 05 & 06 to be the best test for ram artifacts. Also GT3 (canyon flight) in 05 is great for finding shader artifacts.
Reapeating nature in 03 is a good test for max gpu clocks, too high you will get lockups.
May also be the same for the G92 rev cards.

---

Were the SMR's we talked about on the front of the GTS 320???

Viper

Quote:

---

Originally Posted by ViperJohn

Were the SMR's we talked about on the front of the GTS 320???

Viper

---

not that i could find, directly behind (front side) the primarion controller are solid capacitors then a blank space until the edge of the heatsink obscures the board, and the power mosfets start. i cannot find them as yet. I do however feel the r/c circuit will work the same way as the G92 GTS & GT, the resistance across the 3 caps in question is 1.29k & the adjacent resistor is 78 ohms. im taking the card out tomorrow (been so busy havent got a chance) and probing around fully to see if i can find the smr's. i cant remove the HS though, as i dont have any thermal paste left, but im almost certain they would not be that far away. maybe the design of the px3540 differs from the px3544 in this regard, and there is only one resistor & one cap for each phase.

I modded my 8800gts 512 from gigabyte this morning.
Still missing vmem (does it really helps?)
Don't have the correct pot at my place.

Well...added a switch for on/off.

http://img143.imageshack.us/img143/6718/26806464og8.jpg
http://img148.imageshack.us/img148/1324/85440098cj9.jpg
http://img143.imageshack.us/img143/122/94285739tw0.jpg

Results later in the correct post for the efect.

Cya guys! ;)

edited

What does the little power connector type wire do on these voltage mods?

Quote:

---

Originally Posted by scotty1991

What does the little power connector type wire do on these voltage mods?

---

That's just there to give a place to measure the voltage you are applying.

Quote:

---

Originally Posted by scotty1991

What does the little power connector type wire do on these voltage mods?

---

Correct.
The switch is just for on/off.

Quote:

---

Originally Posted by jason4207

That's just there to give a place to measure the voltage you are applying.

---

Fair enough, just looked like a molex or pci-e connector to me and got me confused :D

MSI 730/1944 OC edition

Stock Voltages
Core = 1.13
VMem = 1.94

I am ATI tool stable at 800/1190 With these voltages and 3Dmark 06 stable 820/1200 STOCK AIR!

I think this is a decent clocking card or will be once Vmoded. :D

Quote:

---

Originally Posted by ViperJohn

My GTS would do 1134

---

Interesting, got screeny?

What are you guys doing for ram sinks ? Does anyone have a pic ? What aftermarket air coolers are you guys using ? I will be using a mcw60 , but am curious as to my alternatives .

Good work T_M and congrats to team-eva and team-au.

:up:

team-eva doesnt exist??
We are very much a family at i4memory, not a one man band.

Dont bother with ram sinks for this card

No sinks at all ? Not extra chipset etc ?

I look forward to buying one of these .

:up:

Does anyone know what the jumper looking thing at the back of the card near the power connector is for?

I am just to tempted to place a jumper on it :p: .

haha no team-eva it's Team AU = http://teamau.i4memory.com/ and http://teamau.i4memory.com/1 :)

Nah mate I meant i4 in general not team-au :rolleyes:

ie your group = i4 = team-eva

:D

As soon as money comes through from my GTX sale I will be off to grab a 512 GTS . Then off to Jaycar to get some more VR's ...

:up:

No sinks, and there is no extra chipset either.

Quote:

---

Originally Posted by VETDRMS

Yes I am using a hard mod to reduce vmem.

1.4ns timings are tighter than the stock 1.0ns timings. I am going to tighten the timings further to a theoretical 1.5ns spec and see what the results are. Give me 10 min and I'll post a loose/tight timing 3Dmark06/05 score.

I won't hi-jack this thread, but tighter timings netted a very minimal increase in 3DMark05. 23244 v 23173. 3DMark05 would not complete at 1144 with the default timings, so yeah, tightened timings --> more mhz.

---

I've checked the qimonda 1.4ns datasheet but i can't find all the values that nibitor is showing me.

quimonda 1.4ns
http://img407.imageshack.us/img407/4...nspage1ds3.jpg
__________________________________________________ _______________________________________

http://img139.imageshack.us/img139/5...nspage2xi8.jpg

Gigabyte bios 8800gts g92 that nibitor is showing me...
http://img293.imageshack.us/img293/5...itorg92oq6.jpg

I've got to change all the timming sets ???

Could you share the vmem mod for lowering the vmem value ?

No, only change the value in timing set 1.

1.4ns
---------
tRC: 30
tRFC: 52
tRAS: 18
tRP: 12
tRCDRD: 11
tRCDWR: 6
tRRD: 6

Hey all,

I must have read this thread 4 times and am very interested in vmodding my G92 8800GTS, but there's only one problem: I've never done a Vmod before :eek:! I have a 15W iron and some thin rosin core solder. I also have some 22 gauge solid copper wire, but I think I might use some fan wire (seems like its thinner, 24 gauge+) instead. I did some practice work on an old PCI 56K modem just to get some PCB work under my belt, but I'm still a little wary of the exact procedure. I also ordered some 200, 500, and 1K ohm trimmers that look very similar to the ones T_M used in the first post. Anyway, can anyone throw some hints/tips for a newbie my way, or are there any good guides around? Thanks for all the information already and the great read :up:

Quote:

---

Originally Posted by VETDRMS

No, only change the value in timing set 1.

1.4ns
---------
tRC: 30
tRFC: 52
tRAS: 18
tRP: 12
tRCDRD: 11
tRCDWR: 6
tRRD: 6

---

Changed timmingset 0 or 1 ?

Quote:

---

Originally Posted by VoRtAn_MaDgE

Changed timmingset 0 or 1 ?

---

If you click the "autoselect timingset" button , youl'll get a message with the timingset the bios uses.

Quote:

---

Originally Posted by T_M

team-eva doesnt exist??
We are very much a family at i4memory, not a one man band.

Dont bother with ram sinks for this card

---

One of my RAMsinks feel off due to heat and the card artifacted and locked up instantly? I wouldnt try running without RAmsinks...no way.


___________________________

Max benching clocks on water: 880MHz core (1.375V (idle) 1100MHz RAM if I edged it up slowly. (default voltage)

How about in one post pics of all the mods?
Vgpu, vmem, ocp, ovp ???
Lots of information in different thread... 8800gts, 8800gt, g80 :confused:

Thks!

On my EVGA the Vgpu mod yields a max of 1.52v on AIR with stock modded heatsink....I will not do the memory the Qimonda dosnt run like my samsung did on the 320...The samsung would run 2300mhz 1.210 no prob! the Q onlydoes 2250max @50c ...It not worth the risk untill they decide to use better memory...Also @ 918//2268//2250 the bandwidth sucks....256bit bus shows little improvement when overclocked past 808//2000//2250...

Note:Ovp kicks in @1.53v on this card with Air

808//2000//2250 = 3Dmark06 13090 points @3.48ghzX2
918//2268//2250 = 3Dmark06 13200 points @3.48ghzX2

Overall the Max SM 2.0 =6150 Overclocked
Overall the Max SM 3.0 =6700 Overclocked

The GPU and Shader helped the SM 3.0 score by 1000points over stock score of 5600!

Having a high Oc on the memory is a must,, This is what helps the SM 2.0 score the most along with the Extra 10bw gained in the band width department:shakes: ..

SM 2.0 Stock was 5300 and Overclocked gained 850 points..Since the The memory dosnt do anything more over 2250mhz im not messing with the Vmod for it...Ive ran the memory @2300mhz but it would fail half way through any test...Temps were 50c max load running anything!

In short the Vmod will get you 918mhz GPU and 2300mhz Shader easy..But with 1.5v-1.525 before the Prtection kicks in on Air!

If some one is using water id like to see results of this with out Chilled Water..

I may throw on a water block and go further ,but am still testing this thing on Air...

This thread has been Very help full,, Solder points are the easiest by far.
Keep up the good work :up:

On a Quad this would easily get 2000-3000points more @3.7-4.0ghz So i guess im happy...No X2's come close to 16000 even @3.5-3.7ghz:down:

http://i168.photobucket.com/albums/u...cVmodBench.jpg

http://i168.photobucket.com/albums/u...axRunonAir.jpg

Quote:

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Originally Posted by Timbosan

where is this thread where he has soldered the resistors in parallel with the caps? i came up with the idea of removing the caps altogether, but never tried it, and n1ck r1mer thought of soldering VR's across the caps, but hasnt done it either (though we were talking about it concerning the G80 GTS)

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http://www.xtremesystems.org/forums/...d.php?t=171016

Quote:

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Originally Posted by gOtVoltage

Ovp kicks in @1.53v on this card with Air

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What did you use to test this?
If it was OVP, then if you turn up voltage while idle the system will crash at 1.52V.
If it was OCP, then if you turn up voltage while idle, then teh system will crash during a benchmark and will be far higher than 1.52V (more likely 1.6V).

Please can you test by running GT2 in 3DMark'06 (Firefly) and tell me at what idle voltage does your OCP kick in?

Quote:

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Originally Posted by T_M

What did you use to test this?
If it was OVP, then if you turn up voltage while idle the system will crash at 1.52V.
If it was OCP, then if you turn up voltage while idle, then teh system will crash during a benchmark and will be far higher than 1.52V (more likely 1.6V).

Please can you test by running GT2 in 3DMark'06 (Firefly) and tell me at what idle voltage does your OCP kick in?

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Im sorry ,,I think when it had crashed the first time i was ajusting during bench and went too much:D The Volts jumped past 1.6v when it had shut down...Its safe to say That OVP is 1.6v or higher! My card is freezing the screen @ 1.576v loaded..So it may be heat related..Which sucks because Riva reports a max of 51c when i bench this high! Idle is @37c when cranked to 920mhz! If you look in my Screen ,, my temp was about 42c max here then about a few minutes later i aborted from a freezing screen...

I cant complain for Air,,but i really think this thing has to be runing htter than wha tit says or this is my max core @920 and Air?

so this is what i just did...I loaded3Dmark06 started bench @907mhz

Idle 1.52v

load 1.576v

it benched!

So then

Idle 1.53v

Load 1.59v-1.60v

Froze screen...So i may be shutting down due to Core?

i remeber that i had a Full Pc reboot @1.525v during a bench last night...i was shure that was from the OVP...

Hope this helps..was done with memory @ stock clocks too!

http://i168.photobucket.com/albums/u...e1576vload.jpg

Quote:

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Originally Posted by Stelios

If you click the "autoselect timingset" button , youl'll get a message with the timingset the bios uses.

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I'm on vista64 and the autodetect on vista64 doesn't works...already mencioned on mvktech forums...

The bios i used was this one - http://www.mvktech.net/component/opt...ed81d90c5a735/

I edited the timmingset 1 but if someone could test the autodetect to just make sure :up:

Still looking for mod to lower vmem

Thks!

HAPPY NEW YEAR everyone !!!!

(well its 1.20am 1st January here)

Have you guys found a particular nv driver works best with these ? I found 169.09 worked best with my GTx but this version doesnt recognise my GTS . I also had a similar problem with the newest 169.28 drivers , what are you guys using ? I got my rig to 16,050 at 3.9ghz , but it should be capable of more . Is there much to be gained by altering timings with nibitor ?

What sort of core clocks can I expect with volt mod on water ?

Any help would be great.

:up:

Well seems to me that the vmem on my 8800gts 512 should be different than the generic.
Why?

Look at the ic at the back of my card ...
http://img108.imageshack.us/img108/8...0092ny8.th.jpg

Already googled but no luck :(

Any info would be great ;)

Got to discover if my mem's are from qimonda too, to see if the mod should be lowering the vmem or not :cool: .
But i guess they should be qimonda...anyone with a 8800gts 512 from gigabyte to confirm this ?

found one guy with a 7100gs with that ic but no luck too i guess -http://forums.vr-zone.com/showthread.php?t=183215

Quote:

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Originally Posted by VoRtAn_MaDgE

I'm on vista64 and the autodetect on vista64 doesn't works...already mencioned on mvktech forums...

The bios i used was this one - http://www.mvktech.net/component/opt...ed81d90c5a735/

I edited the timmingset 1 but if someone could test the autodetect to just make sure :up:

Still looking for mod to lower vmem

Thks!

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I have also the same gigabyte board and the timingset is No 1 .

Quote:

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Originally Posted by Stelios

I have also the same gigabyte board and the timingset is No 1 .

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Thks Stelios.

Do you have same ic on the back of the card in the place of the standard vmem ic from intersil ?

Is your card modded ?

Quote:

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Originally Posted by VoRtAn_MaDgE

Thks Stelios.

Do you have same ic on the back of the card in the place of the standard vmem ic from intersil ?

Is your card modded ?

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To be honest , i don't remember . I didn't bother to check it ... and now it's difficult to see it cause i have to remove the card .
I've done the vmem mods as showed in the 1st post of this thread and work great. We also have the same bios in the card . Your picture shows the same IC as in the first post in this thread .

What is the "standard vmem ic" ??? Do you mean the ISL6549CBZ ??? All G92 cards are supposed to have the same IC . Maybe it's relabelled .

Quote:

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Originally Posted by Stelios

To be honest , i don't remember . I didn't bother to check it ... and now it's difficult to see it cause i have to remove the card .
I've done the vmem mods as showed in the 1st post of this thread and work great. We also have the same bios in the card . Your picture shows the same IC as in the first post in this thread .

What is the "standard vmem ic" ??? Do you mean the ISL6549CBZ ??? All G92 cards are supposed to have the same IC . Maybe it's relabelled .

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Increasing vmem give you higher mhz on your gigabyte ?
Or you lower vmem? The shown in 1st post of this thread is the standard.

Maybe relabelled cuzz the reference is completely different as i shown 4 posts back.

Your card is just Vgpu/vmem modded ?
Which clock are you reaching? Cooling?

Thks again ;)

Quote:

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Originally Posted by VoRtAn_MaDgE

Increasing vmem give you higher mhz on your gigabyte ?
Or you lower vmem? The shown in 1st post of this thread is the standard.

Maybe relabelled cuzz the reference is completely different as i shown 4 posts back.

Your card is just Vgpu/vmem modded ?
Which clock are you reaching? Cooling?

Thks again ;)

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I have only tried to lower the vmem . Right now it's at 1.92v .I got the mod from jason4207 via PM , but i haven't asked him if i can publish it . The best way is to send him a PM for information . I don't either like this "secret" mod , but it's not my choice since it wasn't me who found it .

Right now i have the card watercooled with vgpu & reverse vmem mod . Vgpu is at 1.40V idle / 1.45v full load . I can bench at 950/1080Mhz everything . I haven't tried much , cause my proper benchmarks will be with both CPU & GPU in my singlestages( when i get some time though)
Yesterday i put some heatsinks at the voltage regulators (they were very very hot) ... no time to check for gains .