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evga 7900GT @ 695Mhz/1880Mhz (stock 550Mhz/1580hz)
11236 3dmark 05
mods
1.55v Vcore
2.2v Vmem
Bios mod removed 20Mhz geometric delta and set to 0.
Still tweaking as this is just the test rig before placing a XFX extreme GT in the main rig.
http://home.comcast.net/~aicjofs/7900.png
Did you voltmod your card?Quote:
Originally Posted by aicjofs
This is how we like it :toast:Quote:
Originally Posted by aicjofs
That overclock is AWESOME :fact:
I have some questions though:
1.) Have you tested it at 1.4v, does it do much better with vcores above this?
2.) How did your card overclock without the vmods?
3.) Do any components at the pcb get very hot after these mods, or have you sinked them?
4.) What are your loaded temps?
By the way, I think that 1.55v is a little too much for non-extreme cooling. If your temps are very high and even if this is not the case there is a good chance that 1.4v-1.5v will give and even or even better coreclock. have you tried this?
90nm 1.55v = 110nm 1.65-1.70v (or something like that)
Some say the Geo clock works wonders in 3dmark...
aicjofs turned it off and achieved a great oc..But could turning it on give him more points in 3dmark ???
Did the rest of you guys disable the geo clock ?
Zyprex^^
"1.55v Vcore" .. so yes he did Vgpu mod.
I totally agree with Alexio on this one. With 1.55V and very very good cooling you should be well beyond 7900GTX speeds (1.4V). I would definetly try 1.4V first. That stock heatsink shouldn't even be used for ANY over-volting. It looks like it barely handles stock volts. Remeber that each 0.1V increases heat a LOT, and this is 90nm not 130nm 6800's ;)
what is stock volts on 7900GT? Is it possible to push the volt higher without vmod's like biosflashing?
Quote:
Originally Posted by Zyprex^^
there is no soft mod. please read this thread for info on hard mods
http://www.xtremesystems.org/forums/...ad.php?t=92874
Just 1.2v, 7900GTX = 1.4v (1.36v messured by Shamino)Quote:
Originally Posted by Zyprex^^
It is possible to make it lower, but not to make it higher. I think I can make a working bios for aicjofs that will give 1.45v with your mod installed. 1.45v seems perfect for 24/7 ;)Quote:
Is it possible to push the volt higher without vmod's like biosflashing?
I'm not sure if it will really work as I have no knowledge of how the mod exactly works. What I can do is make a bios that would give 1.1v instead of 1.2v without the mod. I think this mod will also lower the vcore with aicjof's mod, but I'm not 100% sure.
This way you van use rather xtreme vcore for benching and a lower for 24/7 without the need to take the vmod of
I wasn't very detailed in the last post because I was sleepy at 1am and had to get up for work at 5:30am.
Alot of other things I posted in the volt mod thread
As for the other questions.Quote:
I decided to drop a quick bit of window deicer repair kit paint on pins 30 and 31 to ground(pin 32), along with the d511 to ground. Just a touch with the point of a needle. Just for testing at this point.
evga 7900GT @ 695Mhz/1880Mhz (stock 550Mhz/1580hz)
11236 3dmark 05
At stock 1.2v and 550Mhz the voltage reg temp was 49C with contact temp probe at load. At 1.55v and 695mhz the temp got as high as 63C.
Seem a real easy mod. More worried about the voltage regulator burning up then the chip itself. Hitting 44C with CPU and GPU loaded with mid range water. Wonder how robust the voltage regulation is...
--At 1.2V the max core was 555Mhz artifact free.
--At 1.4V the max core was 630Mhz artifact free. This makes sense if this particular GT was binned because it didn't make GTX speeds at 1.4V.
--At 1.55v the max core was 695Mhz artifact free.
From my quoted post in the other thread and some extras.
--GPU temp 44C in a "lower" high end water cooling setup at load
--Voltage reg temp 49C at 1.2V and 550Mhz at load
--Voltage reg temp 53C at 1.4V and 630Mhz at load
--Voltage reg temp 63C at 1.55v and 695Mhz at load
--Voltage reg temp 51C at 1.55V and 550Mhz(2d mode) at idle
Other thoughts
--Of course I have my doubts if 1.55v is a good idea for 24/7 use. This is just the test rig while I am redoing the 165 Opty and waiting for a different GPU water block in the main rig . Good cooling is a must no doubt. The voltage regulation system is definetly warmer but I guess if the over current protection works then it's not a risk.
--I don't have evidence but I would say on the early batches the yields aren't quite as good so more(not all, I have seen GTX speed from a GT at 1.35v) of the GT's chips didn't make GTX speed at 1.4v. As yields improve I would venture a guess that more GTX's will be "tossed" in the GT pile as they will have a bigger demand. Hopefully going forward more GT's will hit GTX speed with 1.4v
Like the 2D volt setting. Only run 1.55v for games/3D mode. Let me look at the voltage table and think about it, I have some things to do here at work for now.Quote:
It is possible to make it lower, but not to make it higher. I think I can make a working bios for aicjofs that will give 1.45v with your mod installed. 1.45v seems perfect for 24/7
I'm not sure if it will really work as I have no knowledge of how the mod exactly works. What I can do is make a bios that would give 1.1v instead of 1.2v without the mod. I think this mod will also lower the vcore with aicjof's mod, but I'm not 100% sure.
This way you Can use rather xtreme vcore for benching and a lower for 24/7 without the need to take the vmod of
my friend just paint with silver conducting ink the D511 to ground and now he have 1.4v , its the easy way to do it and easy to remove :toast: :toast:
here are the results:
http://mega.ist.utl.pt/~jrdss/score2.jpg
Can you tell me detailed what he did to get 1.4v? Please explain it in a newbie way :rolleyes:Quote:
Originally Posted by mascaras
find d511 and conect the d511 to ground , dont need wires , just painting with silver conducting ink ,and you get 1.4v :D .
i think its the easy and better way , and no problmes with warranty cause its easy to remove the ink ;)
i dont have pictures and sory for my english
Here is the picture:
http://www.xtremesystems.org/forums/...&postcount=162
http://www.xtremesystems.org/forums/...ad.php?t=92874Quote:
Can you tell me detailed what he did to get 1.4v? Please explain it in a newbie way
Here's my picture edited by illuminati-hwt from above thread.
http://peecee.dk/uploads/pics/7900vmod_diag.jpg
Alexio
http://home.comcast.net/~aicjofs/vrm.png
--Red is the "D511 to ground mod" VID 3 to ground
--Green is VID 0, VID 1, VID 2 shorted. VID 0 is the ground(low) that pulls down VID 1 and VID 2 to zero.
--Blue is the effect of doing both mods.
Since VID 3 is grounded it is always going to be zero. That leaves the range of .975 to 1.15 to work with. Some values won't work. It seems if you could set 1.1 or 1.15 via a BIOS mod, you would only be toggling VID 4 so you would set the voltage to 1.15v. That would probably work if you can actually get the BIOS to set VID 4. For example I think VID 0 is hardwired to ground by design(not changeable). It's not like a BIOS mod can overvolt this card as it is already at 1.55v for this VRM table. Let me know. I was picking through your first mod in Hex Compare, I'd try it myself but I don't have any Hex tools at work, plus I have some things to take care of this afternoon.
EDIT : Also there is more extreme mod that gives the Intel VRM 9 table which is different then the hammer above. SO a modded BIOS would need to be tailored to each if this BIOS mod actually ends up working.
yep its like that :D
Nice! :D But can someone tell me whats conducting ink is? :P
Im a 15-year-old norwegian boy, so i dont understand everything here:P hihi(A)
is simply paint with silver molecules (or some other conductive material)Quote:
Originally Posted by Zyprex^^
like these:
http://www.tedpella.com/SEMpaint.htm#anchor16041
i've just ordered a little 3g tube here in the UK for less then £10 inc VAT & del
Conductive pen
http://www.radioshack.com/product/in...ductId=2104395
But when you have drawed the line of silver paint, do i have to flash bios or something?
Nope, you just get the paint on and you're good to go.
Any idea where I can buy this pen or bottle of this paint in Canada?
Could you do it with a #2 pencil like the good o'le Athlon Thunderbird days? :)
Nick
Update:
X2 3800+ Manchester, LDBHE 0543SPMW
DFI LanParty nF4 UT SLI-DR Expert
XFX 7900GT Extreme, Zalman FS-V7 cooled, vdimm = 2,27, vcore = 1,500v.
Corsair 2x1024MB PC3200 (3-3-3-8)
OCZ PowerStream 600Watt
VapoChill LightSpeed
X2 @ 3,08GHz
7900GT @ 715/2030
Corsair @ 206MHz
12103
Validation
http://desertshooter.nl/12103klein.JPG
DUTCH POWER !!!
You have a very good overclocker. I think with 1.4v+ on the core it will be insane :)
good job deserter :slobber:
monday i will do the 1.4v paint Mod and get a alphacool NVXP-3 waterblock in my 7900GT , i hope i get similar results like yours
-DesertShooter-
Excellent score!
Have you tried any higher voltage? What is your max oc?
Does it work to use a regular school pencil?
Man this is just better and better
Canadian tire, look for Window Defroster Repair Kit - It should have conductive ink in it.Quote:
Originally Posted by tranceaddict
Wow this looks like an easy mod. How safe will this be on stock cooler at 1.4v?
my friend with this mod (1.4v) and a zalman vf700 get 36c idle and full load in Atitool get about 52/53c.
The stock cooler can't handle 1.4v, I'm fairly sure about that.Quote:
Originally Posted by fullup3
DesertShooter what vmod did you do ? Was it a pin connection maybe pin 22 with pin 21 and 30 to 22 ? Btw good job on that clock !
Ok, I just noticed the same questions (and anwers)repeated again and again... so I'm going to let you folks in on a little secret.. you CAN scroll back to previous pages where the answers are, and best of all, you dont have to wait for reply ;)
Yes, cmon people..at least try to flip some pages before posting that question...:)
I removed the 5k resistor and placed a 50.9k resistor :).
I've got a problem, i did the Vmod to 1.4V, and above 650Mhz on GPU during the mark it turns into stock 450Mhz, there are no artifacts and no high temp. memory stays on 940Mhz, what is the source of this problem ?
Instead of a conductive pen, couldn't it be done with a thin wire fixed with some electric tape ?
You did the pen-mod one or the hard-mod one ?Quote:
Originally Posted by Greg_1
both are "hard-mod" :?... doesnt matter if you use a wire taped to the pcb, conductive paint, solder a wire to the two contacts, solder to the pin on the IC and ground, or even play with fire by using pencil... you'll get the same 1.4V result.Quote:
Originally Posted by jVIDIA
Anyone did the pen mod already ? Like to see some results.
ALL THE ANSWERS
http://www.xtremesystems.org/forums/...eply&p=1357986
@jVIDIA i used the conductive paint
Does it work if I take a tin wire and connect it to both spot and put som tape over to get them stuck?
Zyprex^^ :slap: :
Quote:
Originally Posted by jVIDIA
:p:
liquid electrical tape would be handy with that.....worth a try i guess :)
http://img51.imageshack.us/img51/6663/can14th.th.jpg
http://img81.imageshack.us/img81/7687/can21lz.th.jpg
And it can be removed easy ? The idea is that it can be removed easy.
Now i have a new problem still it's above 650Mhz, I tried 660 and 670 in BF2 I've got sth like freeze for like 5sec. I have it only ones during the play, anyone got a idea for it ?
Guys whats the point in getting more than 550 core when in FULL graphics even FEAR gets 70+fps average ?? I mean why void the warranty ?
I went to 550-1600 and i have never seen a game drop bellow 40fps even with everything maxed out..
Just a friendly suggestion, reminder...
Ps : Theres a Hilarious guy that says an 7900GT , GTX ddrs cant go above 2000mhz.....Some people are ATI fanatics all the way.....Burned out...
This is why:
A 7900gt @ 560/825MHz gets only 27FPS in COD 2 and 42FPS on F.E.A.R.
http://www.extremetech.com/article2/...1935814,00.asp
These are my own Benchmarks...I dont see 42fps in FEAR...
http://img161.imageshack.us/img161/9276/bench3ez.jpg
i guys, i bought today a waterblock Alphacool NVXP-3 to my 7900GT , but i got it used in a forum and dont have that thermal pads to the card memorys , im thinking in use termic past not conducting in the memorys , it should be Ok right???
http://img217.imageshack.us/img217/3894/bloco3py.jpg
the waterblock come with this pads for memorys:
http://img126.imageshack.us/img126/4157/adesivo3ye.jpg
but i bought it used and dont have this pads , and im thinking in use termal past not conducting instead of the pads that i dont have , its should be ok right???
regards
I like to run all my games at 1600X1200 or higher, that is why i need the extra power. My monitor supports 100Hz at 1600X1200 or 75Hz at 2048X1536, this way I can still have high frame rates. Afterall, what is the advantage of running 200+ frames per second when your refresh rate is only 60Hz. So many people make this mistake and think that they are gettting crazy FPS, when in fact they are limited by their low refresh rate.
Cant wait to see the results
The pads are 2 a 3mm , i dont think that thermal paste can fill that gap.Quote:
Originally Posted by mascaras
ok i bought this pads instead of use thermal paste , but this pads are not 2/3mm:
http://img386.imageshack.us/img386/8706/pads3tg.jpg
but the memorys are at same level as the Core , so i think there is no problem , no??
Has someone already tested the card with Oblivion?
yes, i already tested the card in oblivion , with HDR the game its very good
i play oblivion 1600*1200 hdr all settings at max drivers set to best quality on a winchester 2.2 ghz ( i know it's a shame but i can'tunderstand why now locks up @ 2.35 ghz when before i was running @ 2.5 with no problems) and the game runs always smoothly... 7900 gt is stock @ 450 1320
Club3D 7900gt @716/1000:D (vgpu 1.55V,vddr 2.2V)
Cpu only at 2800mhz and ram @180mhz 2-2-2-5(i still didnt recieve the PSU from RMA:rolleyes: )
http://img60.imageshack.us/img60/341...2000mhz5zj.jpg
http://service.futuremark.com/compare?3dm05=1914990
crazy score :toast:
Ok, thanks guys! Then I think should be the Unreal3 Engine no problem for this card too (hopefully ;) )
I guess now I'll stick to the 7900GT. Just need to wait until there is a cheap model avaiable :)
Nice score:D But what cooling did you use..temps?Quote:
Originally Posted by Shark-357
Zypress look at the sig.:
"" CPU & GPU Watercooled "" :D
Oh, sorry:PQuote:
Originally Posted by mascaras
But is it a small chance that the stock cooler can handle 1.4v on gpu?
What's the point then in running above the reference 450Mhz speed? Why produce OC versions at all. You are totally satisfied with less than 8000 3DMark2005, right?Quote:
Originally Posted by HellasVagabond
Dont forget GT -> GTX clockspeeds are 40%+ difference. That is a LOT of untapped performance. 650Mhz gets you to 11000+. 750 to around 12000+. And if you feel reference 450Mhz is enough, perhaps you arent using high enough resolution, or tried COD2 with lots of smoke. Dont worry, Unreal3 etc, will make good use of all those Mhz. Besides, this is www.xtremesystems.org not, sensible-safe-computing-within-manufacturer-limits.net ;)
Quote:
Originally Posted by Zyprex^^
yeh , the guy (Illuminati) who make de 1st 1.4v paint MOD have stokcooler ;)
chek it here >> http://www.xtremesystems.org/forums/...&postcount=162
and here >> http://www.xtremesystems.org/forums/...t=92874&page=8
i think with stokcooler and 1.4v you got about 42/43c
42/43 Load?Quote:
Originally Posted by mascaras
Quote:
Originally Posted by HellasVagabond
you are definately on the wrong forum if that is your way of thinking.
My XFX 7900GT (550/815) stock gets only 4600 3dmark06 score. The core wont move and memory only to 825. Temps are 43 idle 65 load. I think it must be my temps??? Getting the new zalman cooler when it comes out or water cooling.
PS: Havn't read all the thread...
Thx guys im really happy that the card clocks so good coz 1000mhz on ram is just insane :woot:
Gpu is watercooled and on ram i have Revoltec BGA copper ram sinks.Temps are 38 in idle and 43°C on full load .
Oh yeah and i had to remove the GPU vmod posted on vr-zone coz the screen was shuting off all the time when i passed 670mhz on core :confused: (it might be coz it overvolted with that mod 1.58V and after i removed it it´s 1.55V maybe OCP kicking in ???)
Someone else didnt get OCP kick in even with 1.6V. Perhaps it was, but more likely a poor connection somewhere.. you migh have pulled something accidentally.
Thats cool the mod with conductive ink works also, very nicely i must say.
I see you have club3d 7900GT and 705/1800Quote:
Originally Posted by SF3D
stock:
My coolbits detect max gpu: 538
max mem: 1730
What's the problem? I would like upper gpu speed, because lot of people beat 570 core speed..
my card temperatures: idle 39c , load 57c
Might be dunno oh well i removed it so no biggy :)
I might replace the resistor also coz in near future i am planing a DI session and i will need more than 1.55V :fact:
Here´s a 3DMark03 run @720/1040,1.55V/2.2V
http://img62.imageshack.us/img62/480...dmark032tk.jpg
Quote:
Originally Posted by Sam Leach
your temps are too high , i have 34/35c idle and 50c full load with stokcooler on my XFX 7900GT XT
Core is higher than the mem , a few mm's.Quote:
Originally Posted by mascaras
Take a look @ the latest block from DD for the 7900 series http://www.dangerdenstore.com/files/...8_baseview.jpg
well tomorow ill gona try with this thermal pads , i think its better use this pads instead of thermal past , i hope that waterblock have contact with memorys , if not , i can also use the pads and thermal past above the pads ;)
Just ordered my BFG 7900GT today :) I will doing at least the 1.4V vmod.
gl lowfat hope you break 700core
I'd be interested to see how the waterblock does for OCing the core. I just got two of those cards Mon and they both do 715/865 in SLI, slightly better when running one card. I've got blocks ready to attach but was wondering if it was worth it.Quote:
Originally Posted by HeavyH20
XFX 7900GT 550/1630 1.4V Volt MOD to 660/1800
10642 3dmark 05!
nice simple voltmod!
Does anyone know if a Silverprop Fusion HL would fit on one of these 7900GT's ???, I have only ever used it on ATI cards :rolleyes:
Also is there any consensus as to which brand card has the higher OC potential ??.........thanks :)
I have the feeling that eVGA and XFX have the best resultsQuote:
Originally Posted by alpha0ne
..at least hoping so...:D , nn_step did buy the eVGA N563 for me, only wish it could arrive soon enough...:p:
I would have to say evga as well.
just fabricate a way to mount it. I am just going to be holding my old school maze4 down with likely zip ties.Quote:
Originally Posted by alpha0ne
how are you guys able to take your memory that high? I've tried powerstrip and it only will let me take it to 878. And AtiTools detects my clocks way wrong.
Do you mean the DDR memory? Double Data Rate? Your 878 would be 1756 "Effective"Quote:
Originally Posted by lowfat
i agree. i have a XFX 7900GTX EE (690/1750) version and my core does ok, 720, but the memory doesn't have much headroom, 886. this is stock cooler/volts.Quote:
Originally Posted by lowfat
no i'm not complaining but i am as high as powerstrip will let me overclock. I want to see if i can take it higher.
and I heard 7900GTs run really cool but I am full loading @ 41°C with a Zalman VF700Cu w/ a Delta 80mm EH8012EB tri-blade on it. Is my sensor out or can it actually be that low?
i found here in a electrical shop liquid silver , its same thing as ink of silver????
what software is peeps using to OC the 7900's, rivatuner doesn't give any OC options..........???
i use ati tool
ATITool working fine, you just need to calculate write :) for example, if you see 400 in the memory, it means 400*4=1600Mhz , kapish ;)Quote:
Originally Posted by lowfat
41°C in full load? in GT it can be, but in GTX...maybe
ATI Tool for Nvidia's?
I am impressed with my card. Memory is doing 930MHz without a problem, no extra voltage, no memsinks. Able to get the core up to 580 so far.
btw did anyone else have problems with the caps falling off their BFG 7900GTs?
oops.. didn't see you have a GT, 930MHz without extra voltage? wow, you have the Zalman heatsinks on the memory ? my Leadtek 7900GT doing 875MHz (810 without artifacts) and core up to 560, but I steel use the stock cooler, waiting to my VF900 :) and then 1.4V-1.5V vmod , hope for 700+
Hey! From Russia with love!
;)
2All:
nVidia BIOS Modifier v.3.3
http://downloads.guru3d.com/download.php?det=1118
with 7900GT/GTX support.