you're right, but 15 sec atitool stable is enough to run 3dmark.Quote:
Originally Posted by Renegade5399
and that pcie speed, thank you for mentioning, because i couldn't find the reason for the low framerates :)
Printable View
you're right, but 15 sec atitool stable is enough to run 3dmark.Quote:
Originally Posted by Renegade5399
and that pcie speed, thank you for mentioning, because i couldn't find the reason for the low framerates :)
Here's my XFX 8800GT XXX, I feel ripped off $310:
864Mhz Core, 1053Mhz Mem, 1.39v Load
http://img144.imageshack.us/img144/5...k06172kid1.jpg
I bought the wrong HR-03 version, stupid me :( I had to do some mods:
http://img212.imageshack.us/img212/8083/p1040192cn1.jpg
Here's the vcore mod, no need for vmem since it does 2100Mhz easy:
http://img137.imageshack.us/img137/9559/p1040197qk4.jpg
The HR-03 w\ 120MM Yate Loon 2200RPM works very well, 33C idle and ~45C load with volts 1.2-1.39v (22C ambient)
Somebody figure out OVP mod, I want 900Mhz :worship:
Hi need.for.mhz
I have the Same card, i cannot push my core past 780 then i get Artifacts in ATItool.
I hear you bro,Quote:
Originally Posted by GTXVotrEX
Are you using stock cooler? Any volt mods? My card was stable 720-738Mhz core at stock. Your card seems a little better. How is your memory, can you run 2106Mhz easily?
I was just benching 3dmark06 with 918Mhz on the core at 1.49v load, it ran couple minutes and then ovp kicked in and card halted :mad: I did it with ovp mod using 4.1k ohms and 3.1ohms, it didn't work.
Yes stock fan, no volt mods this will be my first.
What would you suggest i get my hands on to pull all this off.
I push my mem to 1000 in riva tuner. does that mean 2000?
Hey I did the volt mod, but am still waiting on a water block so I havent pushed it very far yet, however I have a problem. My problem only occurs after waking up from sleep mode. After it wakes up, about 5 or so minutes later the video card crashes and the screen goes black. This usually happens when I'm on the internet. However if it did not come out of sleep mode and just normally booted up the card runs awesome with everything including serveral hours of crysis and such. Im running vistax64 anyone have any ideas or had a similar problem?
anyone know a site which sells 1k VR's and ship internationally?
Known issue. Try the latest beta forceware drivers...169.12.Quote:
Originally Posted by scottc19
What kind of cooling are you guy's using when running 1.3 or 1.3+ volts ?
Is anyone using the arctic cooling s1 cooler? if so how is that working for you and what are your temps / overclock...
Also looks like someone saw this thread and decided to start selling it ?
http://cgi.ebay.com/WOW-Nvidia-8800G...QQcmdZViewItem
first time dealing with soldering, help a beginner out
everything is clear to me but..
where is this ground point? its not labeled in the pics
they are the blue dots in the picture of the first post...
http://www.xtremesystems.org/forums/...1&d=1196804211
Quote:
Originally Posted by Aldy402
I'm using an EK waterblock. max 45C load temp, 3DM06 stable at 864 core.Quote:
Originally Posted by Astennu
1.354v
OCP mod ;) (Maybe)Quote:
Originally Posted by need.for.mhz
I don't believe those temps are load at 1.39V on air...
What are you using for load? And is it the card temperature or core?
The OCP mod has been figured out by need.for.nfm
Quote:
Originally Posted by need.for.nfm
Great job! :up: I already tried it on my card and it worked like a charm! Running 1.49v load without a hickup.Quote:
Originally Posted by need.for.nfm
Now show me some results! I found out that above 1.5v load gives minimal improvements.Quote:
Originally Posted by Mysterfix
Removing the x78 resistors does indeed work, I'm running the core at 1.5v now, but the OC isn't stable over 890.
yes same here with ocp mod 870 or so1.48v,
Done a few test and 900mhz at 1.48v is the max for me but that only got me a few hundred points in benchies. Anything above 1.5v is useless for me as the core and shaders do not benefit from the extra voltage at all.
Quote:
Originally Posted by Mysterfix
900mhz core with what shader clock and for how long?? cause i can play for like an hour on 864/2160 core/shader before it crashes
I just did the vmem mod, but when my VR is set to 20komh vmem is 2.1v
So is it overvoltet stock, it's the MSI OC version, stock at 650/950. Volt's isn't helping at all on mem.
that has been determined somewhere at the beginning of the thread :yepp:Quote:
Originally Posted by hifiking
i have seen X1900 perform better with lower mem voltages to bad we cant adjust voltages in software like you can with the X1K and HD2K cards.
can you guys tell me what iron do you use to unsolder this resistor? I have a crappy 30W one and I feel it won't be enough powerful to unsolder it, what do you think?Quote:
Originally Posted by Mysterfix
30w surely nope :)
I used 15W from radioshack.Quote:
Originally Posted by Pacha
Yep, I'd go w/ 15W. 30W is kinda hot for circuit board work.
Like I said I only ran a few test, I played about an hour of CoD 4, ran 3dmark03, 05 and 06 a few times, ran about 10 loops of crysis bench tool and ran aquamark a few times.Quote:
Originally Posted by winbond
I used a cheapo 30 watt iron, worked fine for me but I did sharpen the tip a bit before I started.Quote:
Originally Posted by Pacha
gees, I had Visions of Sugarplums (850 gpu clocks) dancing in my head (running Crysis) ..... then I woke up!!!! :(
took my 8800GT SC , installed a Zero Therm Hurricane Cooler, did the Volt mod for the gpu (500ohm 20 turn pot) .... adjusted the voltage to 1.33v, ... and then the weird stuff started happening...
My board stock runs 3DMark06 at 12,800 (650,950) ...
... to make a long story short, ... if you have the volt mod set too high, .. it will run the 3Dmark test once, ... then the ovp kicks in (apparantly) and from that point on, .. even though the Nvtune or Gpu Z still shows your overclocks, .... apparantly you're 'really' only running at STOCK clocks. :( until you reboot. You can see this is you run 3Dmark twice, the first time you'll see a nice score, .. then is you immediately run it the second time, ... you'll see a bone stock score :( yet all applets shows "overclock values"
Has anyone else seen this happen to them? ... or maybe I had too much wine last night...
After I figured this out , .... I began to adjust the volts again, ... running 3dmark twice each time...
so far, I've been able to ....
Volts = 1.213v (this is very close to my limit)
gpu clock = 710, shaders = 1877, mem = 963 for a 3dmark score of 13,552 (on air)
Man, I can't even get the mem clock to 1000 either :( yep, ram sinks are installed. ... woe is me :(
Santa will NEVER come to my house!!! :(
I guess this elf needs to go read the OVP thread huh.
thanks for letting me vent! :)
Allen
PS ... a stoopid question about ATITool (27v4) ... the main screen doesn't show my clocks nor can I adjust them in that program, ... is there a post or link where I can get more info about using it with my 8800GT??? so far I haven't been able to figure this out either.
I use rivatuner np with setting clocks.
http://downloads.guru3d.com/download.php?det=163
what temps?
even with stock fan at 100%
1.25 3d volts was no issue.
check volts thuogh out 3d bencheis see if you are spiking volts to high
If you reduce the memory voltage you might get better results. You need to wire the VR differently, though.
hmmm, ....
a question: WHEN should you set the Vcore? at idle just runnig Windows? or should it be set while running thew 3dMark06 program? Right now I'm setting the higher voltage at idle, ... and I do notice that it goes up when running the 3D tests.
Yes, I use Riva Tuner to set my clocks, ... what I "meant" was that i couldn't set them any higher because I would get errors, .. NOT that they wouldn't adjust higher .. sheesh
Do you have a picture of the vmem mod to reduce the voltage? I'd like to try it to see if it helps with my mems.Quote:
Originally Posted by jason4207
I'd set it at idle, but understand that the card overvolts underload, so you need to set it w/ that understanding.
Are you adjusting the clocks individually or all at the same time?
From what I've read you won't get much over 1.295v (idle) w/o having some OCP problems every now and then. The end of the AquaMark3 test is good for finding out if OCP kicks in at your given voltage.
You have PMQuote:
Originally Posted by Mysterfix
thanks for the reply Jason, ...
a question, ... since I can't go any above 1.21V without ovp kicking in, I prolly should just remove those two SWRs mentioned ina post or two back.?
I've been setting the clocks one at a time, then running the tests.
I'm thinking that I just remove the two resistors, .. set teh volts at 1.33 idle, ... then see what happens when I go up on the clocks.
thanks
ALlen
Got it, thanks.:)Quote:
Originally Posted by jason4207
I wouldn't remove those resistors. You have PM.
Why would you not remove them? And could you post it in the open forum please. Enough of the secret squirrel stuff.
Viper John didn't want to post it online in OCF, but I'll post it here.
Here is his email to me:
You're probably fine to remove the resistors in question, but this way seems to be safer IMO. I could be wrong, though.Quote:
Hi Jason
In order to do the OCP mod ya need two 4.2k to 4.7K 602 size SMR's (they both have to be
the same value). Solder in parallel (on top of) the SMC's indicated in the attached picture.
Those new resistors form a voltage divider in the circuits reading the voltage drop across
each Vcore PS phase series inductor (the higher the current through the series inductor the
higher the voltage drop across it and when that voltage get "X" high for "X" long then trip a
roo goes the OCP protect). Those values reduce the voltage drop sees to read by 25%
from what it actually is. OCP still works but it takes higher current flows before the regulator
detects it as being to high and shuts down the Vcore PS.
You do not want to reduce it to much as the regulator is also using that Vdrop signal to keep
the current sharing between the two phases in balance too.
My card got up to 864 x 2052 clean in ATItool at 1.325 desktop idle in WinXP. The GT's
Vcore regulator boosts the Vcore over that when the core loads up in 3D by up to .060 volts
(the higher the load the higher the boost) so ya got to watch that. The next clock steps up
are 880ROP and 2106Shader and my core couldn't get tclose to either of those clean in
"Tool" at 1.350 desktop idle so I just backed the Vcore down to 1.335 DTI all called it max
at 864x2052 with this card.
http://mail.google.com/mail/?attid=0...6d024c1adb3cd1
*Usual disclaimer...you are responsible if you kill your card, and this will void your warranty.
Let's see ... so far we have:
1. Vcore mod, ... add a 500 ohm 15turn Pot. to be able to adjust the Vcore volts.
2. Vmem mod, ... add a 10K ohm 15turn Pot. to be able to adjust teh Vmem volts.
3. OVP (Over Voltage Protection?) ,, one must change a SMR to 5.1K ohms as shown here:
http://www.xtremesystems.org/forums/...d.php?t=162124
4. OCP (Over Clock Protection?) One must 'either' remove 2 Smr's altogether or install 2 4.7K smr's in parallel as shown in the above post.
If the above is correct, then my question is how does one know when to do either 3 or 4 above, ... or both at the same time?
My Vcore is set for 1.213V right now, and if I raise it any, ... the gpu will reset and run 'default' clocks until the next reboot.
thanks
ALlen
Well, I thought I had everything relatively stable, ... so I thought I'd go play Bioshock for awhile. ....
and this is what I get after a few minutes of play.
http://www.treasure-cove.net/bioshockerror.jpg
soooo, ... I reset the Vmem back to 1.1V ... went back to defaults on all clocks, on my 8800GT SC, ... yet still get the errors on the screen.
All benchmarks run fine, including 3dMark PCmark, .. and I even ran ATITOOL all night last night... no errors.
My sys. is an E6850, asus p5b, Ballistix tracer pc2-8500, .. sys seems to be running fine at 3.78Ghz (420x9) ....
I put a new fan on the 8800, ... ZeroTherm HC9200, and the temps seems fine, .. idle at 30c , .. running 3dmark they go up to 42-45c.
Has anyone seen that screen error and might be able to give me some tips as to where to start looking for the culprit? my nvidia driver is at 169.02.
thanks
Allen
Your video memory is clocked too high. Try running 3DMark03 Battle of Proxycon loops, and see what happens. Keep dropping your memory speed until you can make it through at least 8 loops. If you can lower the video memory voltage you might get better results as opposed to raising it. I had to RMA my card b/c the RAM would do exactly what you're seeing until I clocked it down to 885.Quote:
Originally Posted by Legion455
Also don't worry about the OVP mod...I don't think it's necessary. Just the vGPU mod, vMem(-) [which uses a 50kVR and is wired a bit differently], and the OCP mod.
Your memory is crapping out on your card. It may even be a driver issue but my card only doe's that when the mem clocks are too high.
Thanks for the tips guys, .. much appreciated!
I guess I'll see how low I need to set the mem clock, ... then probably have to rma the damn thing. :(
Allen
Well that wasn't too bad, ... only had to go back to 925 down from 950 default. God, I hate that, ... right in the middle of overclocking! ... then you have to stop and start backtracking. :(
I guess now Ill have to rma this 8800GT SC next week, ... and but a new 8800 while I'm waiting ... I wonder which boards are avail, .. and which would be a better choice... maybe an 8800 GTS G92? but, . WHO has the best price?
thanks again, for the help!
Now, .. about the OCP mod, ... is there any benefits from "putting the 2 resistors in parallel" over the "remove both resistors" ? removing the 2 would be much easier.
Allen
you have PMQuote:
Originally Posted by Legion455
its all great till people begin to break their hardware doing things out of their range of ability. through PM you can determine if the 'question asker' is capable of using the answer without detrimental consequences, and it avoids giving incapable people an idea through a public forum that could wreck their gear.Quote:
Originally Posted by Renegade5399
Your looking out for other members is nice. IMO however, if they fry their stuff, it's their own damned fault.Quote:
Originally Posted by Timbosan
Its just one of those things. I know full well its every individuals responsibility, but mods gone wrong can lead to some pretty heavy animosity, which can affect the willingness of those with an electronics background to help, and if taken far enough, the reputation of the advice giver.Quote:
Originally Posted by Renegade5399
im happy to give any advice through PM or email. that way everything can be made absolutely clear for the person about to do the mod.
you have PM ;)
can you PM me too please? just make it clear for me : is it better to solder one resistor in // on each of the two res for ocp mod or is it better to unsolder both? my first feeling was that it breaks the circuit like someone else, but apparently the behaviour depends on how the primarion chip reacts to the different ways of modding, for which I need some enlightenment
I would appecriate if we could just post everything also. It's their fault if they break their stuff. For christs sake this is a volt mod thread already, breaking stuff is a risk in doing the original mod so I don't see why we have to pm with a similar possibly more complicated one... otherwise we should just F*** the forum and just pm each other all day.
+1Quote:
Originally Posted by scottc19
Pls, put all the info here. :up:
ok, I'm a bit confused, got the gpu mod done, but it won't adjust, when I have it connected it adds .05 to the vgpu but I can't get it to go up, I'm puzzled, checked my vr and it seems to adjust fine starting at 500 ohms, any suggestions?
toddm27,
You're not turning the VR enough. vGPU won't start rising until several turns, and even then it's quite slow - but it faster after more turns...
I'm not sure that's it, I'll redo it tonight with another resistor possibly, but I turned it like 6 or 7 turns with no change in volts on a 15 turn vr :shrug:Quote:
Originally Posted by largon
Thanks for the input though:up:
6-7 turns is infact not enough.
cool, thanks man, just resoldered it and it's working now, 800 with 1.2v :D on the core np
Nice! Stability?
Now up the vGPU and go higher. :P
Is there any way to reduce the vmem on 88gt? I'm wondering cause my crap memory can work stable only on stock freq. Vmem reads 2.01 (that seems to be a bit on the high side of stated 1.9V +/- 5%). I somewhere here read that one guy decreased the voltage and got much higher overclock.
The core is very nice though - hits 820/1940 on 1.25v on air (48°) artifact free in atitool (and seems stable in games).
Also my previous 88gt could game w/o problems @2000mhz mem. Probably had lower volts, but i don't know since didn't measure it back then.
Are there any vGPU/OCP/lower VMem mods for the Gigabyte/Galaxy short PCB version?
The Galaxy short PCB card I have has an RT9259 DC-DC converter on it, so we should just be able to add a VR between the feedback pin (pin 4) and ground. I'll hopefully get around to trying it tonight and report back if successful.Quote:
Originally Posted by NonDecepticon
If it works out and nobody gets to it before me, I'll post some pics when I get a chance.
Awesome :up: To get a vGPU reading, would we be able to follow the trace from pin 4? I look forward to it, I am really curious if the different regulation on the short board and in the Galaxy's case dual PCI-E connectors (supposedly discrete GPU and MEM supplies) will provide for some interesting overvolting results :hump:Quote:
Originally Posted by mud
I discovered something interesting. . . my 512MB Galaxy 8800GT has a vcore of 1.22V idle, 1.26V load. This is without me doing any mods. If this is common, it could explain why people have been having such good luck with this card.
Dissapointing for me though, since mine will only do about 700 / 1728 / 950 at that voltage.
I did the vcore mod anyway, and I'll try it tomorrow morning to see if it worked. Need sleep for think more now.
mud, what is the cooling of your card? Freq could go a lot higher if you can get it cooled below some 50° under load.
That's possible. Right now the card has its stock cooling, which is a Cooler Master heatpipe orb thingy that works fairly well:Quote:
Originally Posted by trez0r
http://www.galaxytech.com/admin/uplo...4132748372.gif
Load temp with 1.23 vcore is about 77 C. I may try putting my maze4 on it at some point.
As for the vcore mod, I must have been asleep last night. My non-modded load vcore is 1.23V (still really high), and the mod appears to have worked. I still need to do some more testing though.
mud,
Does your card have a vGPU jumper?
I have done the ovp mod now, 920-930 core and 2250+ shader. Waiting fore some DI befor i´ll bench again.
Some results with 1.3VGpu
Aqua:
http://www.hwbot.org/signature.img?iid=69091 287282
3dmark01:
http://www.hwbot.org/signature.img?iid=69120 91120
3dmark05:
http://www.hwbot.org/signature.img?iid=69121 29053
3dmark06:
http://www.hwbot.org/signature.img?iid=69122 18569
I´m in big need for ram-v reduse-mod, any one got it :confused:
My card looks like this:Quote:
Originally Posted by largon
http://img.photobucket.com/albums/v5..._8800GT512.jpg
It has some kind of jumper (in red circle), although I don't think it's for vGPU, because it doesn't have any effect on VGPU as far as I can tell. Neither taking the jumper off nor putting it on in either position affects the voltage at all. Also, I was wrong about the stock voltage being 1.23V. . . I was measuring it in the wrong place, and just assumed that it was the GPU voltage since it was close to 1.1.
I still haven't gotten around to testing to see if the vGPU mod I made works, because I've been playing with my 256MB XFX 8800GT, which actually likes to overclock. Right now it's stable at 800 / 1890 / 850 at 1.20V (from stock 600 / 1500 / 700), and it's definitely being held back by heat.
It's more fun :)
mud,
Some points to measure vGPU on Galaxy board :
http://img201.imageshack.us/img201/5...easurinhv8.jpg
My XFX 8800 GT 512 XXX Alpha Dog Edition (black pbc) difrent vgpu poit? alternate vmod point? http://img144.imageshack.us/img144/859/resim479ij1.jpg
865pe,
Your card is a reference board just with black coloring.
Meaning the guide in first post applies to your card aswell.
ok thanks :up: GPU pencil mod possible ?Quote:
Originally Posted by largon
Nope.
:(
Largon, I was initially measuring at those points, that's where I measured 1.23V. However, I also measured 1.15V on some of the little capacitors closer to the GPU. 1.15V seems like a more reasonable stock GPU voltage, but it also seems like they would put the big caps on the main power supply, so I don't know what to think. Are you sure those points are the correct ones to measure?
As for my voltage mod, I actually modded the memory voltage instead of the GPU voltage. Doh!
The DC-DC converter for the GPU appears to be a Richtek RT8802A on the front of the board, which I had originally assumed was a Realtek 880 HD Audio codec chip. Looks like a VR from pin 4 to ground will do the trick. Hopefully it's actually the correct chip this time :hitself:
Hey so i tried the same mod as VETDRMS with the 1k and nothing happen no add volts on whatever i do and its all conected up like his any suggestions and also do u put the wire on the one close to the screw or the middle?
Here's a vGPU volt mod for the OEM version of the Galaxy 8800GT 512MB with non-reference 6-layer board and 3-phase power.
EDIT: If the VGPU jumper works on your card, then you probably don't need this mod. The jumper has 3 settings.
Looking at the front of the card with the monitor connectors to the left and jumper at the top, imagine these are the three jumper pins: "o o o"
o o o = ~1.12V
[o-o]o = ~1.22V
o[o-o] = ~1.32V
Now, on to the mod, if you want more than those three settings to play with.
First, the usual disclaimer: If the magic smoke comes out, it's not my fault. That said, this didn't hurt my card.
The red rectangle is our area of interest:
http://img.photobucket.com/albums/v5...oltmod-001.jpg
Zooming in:
http://img.photobucket.com/albums/v5...oltmod-008.jpg
I forgot to take a picture before I did the mod, so you can see how I did mine. I connected pin 4 of the DC-DC converter to ground through a 30K variable resistor (VR) in series with a switch. This allows me to disable the mod by simply flicking the switch.
You need to connect the red dot (Sorry, the actual point to solder is covered up by heat shrink tubing in the picture, but it's the left side of an SMD capacitor) to ground through a variable resistor. 30K ohms should be a good value, since the resistance to ground from that point is originally about 1.35K ohms. The teal spots are some handy ground points you can use. You can use whichever ground point you want, including ones I haven't marked in the picture.
The vGPU voltage will increase proportionally to how much the resistance between the red point and ground decreases. So if your stock voltage was 1.10V with an original resistance between the red point and ground of 1350 ohms, and you decrease the resistance to 1190 ohms by adding your VR and tuning it to 10.0K ohms, your new vGPU should be about 1.25V.
Here are some points to measure vGPU:
http://img.photobucket.com/albums/v5...surePoints.jpg
Some notes on my experience with the mod:
I saw vGPU increase by about 0.02V under load, so take that into consideration.
My stock vGPU was 1.23V, and since I'm just using stock cooling and I have a crap card anyway, the mod wasn't even worth doing. Hopefully it will help someone else though.
On my card, the vGPU jumper has no effect. Apparently if you have the retail version with HDMI connector, the vGPU jumper will increase voltage.
If anybody else tries it, report back!
In the retail [hdmi] version, the oc tool included shows an increase of 0.25v over the stock 1.2v for this card by just moving the jumper
http://72.14.203.104/translate_c?hl=...-225125-3.html
http://img171.imageshack.us/img171/1...9054a56ug4.jpg
vcore 1.45v
vmem 2.02v
fan @ 1501rpm
There is a thread at [Hard]Forum just for this card,
and without a vmod some users are reaching higher oc results.
http://www.hardforum.com/showthread.php?t=1250946
EDIT:
some users are getting this card with Samsung 1.0ns instead of Qimonda
Good to know. I have an OEM version from NCIX, and my particular card overclocks terribly at any voltage (1.22 - 1.50). It has 1.0ns Quimonda RAM. Also, the voltage jumper doesn't do anything from me.
that sucks, this card should be a OC monster, i hope other 3phase power cards overclock better,Quote:
Originally Posted by mud
is there a vmem mod for the galaxy card? also, where do u measure the voltage of the vmem? lastly, those red points for the vgpu; do u put the positive wire from your ddm to the red point and the black wire from the ddm to ground or the red point beside it? sorry i'm acting like a noob, but 13 year olds just don't know that much about electrcity =P are there any problems with flashing the bios on this card because it's a non reference design? i wanna change the clocks and make it permanent, but i'm not sure if the rom chip is the same or not.
Boogerlad,
Voltage = potential difference.
If you measure the potential difference between two vGPU measuring points your result will be 0 (or very close to it). The difference between vGPU measuring point and ground is what you're interested in.
oh, thanks man! xs is great cause everyone is so willing to help.
Ok PLZ someone help anyway i have 580 power supply and a 585 power supply anway i had problems with the 585 cuz my wireless mouse wouldnt work weird ya,and i tried the volt mod nothing and so i just left in contact but i switched to the 580 and than all of sudden i could go from 730/1782 to 756/1836 stable but i tried turnin the screw to get more volts nothing happens but i find the spot where it goes back to normal volts, so anyway is my 580 watt power supply holding my back, my system specs e4300@3550 1.52 volts, 2x4gb at 1052 at 2.3 volts, 2 harddrives, wireless keyboard, wireless mouse, wireless card, 1 dvd buring and about 6 fans so u think my power supply holding me back o yea 26watt on the rail
My OEM Galaxy card clocks like crap too. 712 Core 1625 Shader mem 1050 havent measured stock voltage yet.
Edit: Just measured and HOLY CRAP 1.31 IDLE. Isn't that really high for stock? Can I RMA based on this?
I Did the V-mod and mounted a VF900 cooler.
With VF900 and stock 1.15v i could do 700-1830-1900 @51c GPU temp
Now i modded to 1.25v and testing 775-2000-1900 @ 57c GPU temp.
It seems to work fine 800 gpu gives instant freez in 3dmark 06 and 2050 shader freezes in game 2.
Tomorrow i will try 1.3vto bad my gpu clock wont go that high but i'n running air cooled so i have to be careful with the temps.
And BTW ATi tool is not stressing all the parts in the chip enough. I could run ATi tool @ 700-1730-1900 @ stock cooling for more then 30 min. And still got crashes in games like supreme commander and Trackmania United. It was my GPU clock.
Same with the 800-2000-1900 setting it ran fine in ATi tool average 610 fps but instant crash in 3dmark. Something is holding the card back and not stressing all the components.
Quote:
Originally Posted by mud
Strange,
moving the jumper allows to increase core up to 750,
even at stock clocks moving the jumper increases core temp 5ºC
I assume it is working.
i did the removal of the 2 smd or whatever there called and no more shutdown woohoo!!!:). im at 1.38 idle and 1.46 load witch is good foe me cuz its low idle volts. im call of duty 4 and atitool stable for 24/7 operation. heres a screen shot of what i did real quick. let me know wjhat you think of my card. i dont know if i would call it a monster but who knows. i have tried and higher volts. can do 900 core but get few artifacts in atitool. might try higher volts but for now i will let this voltage settle in while i get more brave with voltage. temps dont break 58c or so depending on ambient temps. and is it ok to bench for periods of time say hour or 2 with memory over 1000mhz? i dont wanna hurt my card just ran it at 951 always no higher cuz of what people said
I did some testing with the Ozone Fun benshmark and that one is realy stressing the shaders of the card. The temps are 90c @ 1.266v @ 775-1836-1900. Its clear ATi tool aint stressing it because my temps with the ATi stress where 70c on those settings.
I also found out that the ozone test did not stress the core that much but it did stress the shaders to the max. When i launch ATi Tool on those 90c temps it crashes on my core clock of 775 when the temps go down it can manage to run a longer period.
So its hard to 100% stress test these cards for 24/7 usage.
Work this mod at a 8800GT with no Reference Design ?
I have the Gainward 8800GT GLH 512MB
I noticed a interesting thing. In under ATi Tool load i measured 1.225v with Ozone Furbenshmark load i measured 1.25v. It seems that the card will give the card more juice depending on its load ? Fur bensh also gives 20c higher temp then ATi tool. ATi tool is still 10-15c higher than most games.
it won't work with it. however, if you post some pics, some people will be able to help you. i can't though, sorry :(
There is a vmem mod, I actually did it by accident before I did the vgpu mod. It is easier to do, but I doubt it would help you at all unless you have some good cooling on your memory chips. Increasing my memory voltage decreased my max memory clocks. If you're really interested I could make a guide.Quote:
Originally Posted by Boogerlad
Your memory voltage can be measured on many of the caps behind the memory chips. It will be about 2.0V. Don't be afraid to poke around on there with your DMM (just don't short out anything with your probe, and make sure you're measuring voltage, not current!)
Flashing a modified version of the Galaxy BIOS is not a problem. You can use nvflash 5.57 and NiBiTor just like normal. However, I suspect that a BIOS from a reference board 8800GT might not work.
As another thought, I'm still not completely sure that the VGPU mod guide I made is correct. I measure about 1.13V on a bunch of caps on the back of the board behind the GPU, which is not the same voltage as I measure on the big caps (marked with red dots on the picture).
Like boogerlad said, post some pictures (closeups of front and back of card) and someone can probably help you. The only two board layouts I know of are the reference design and the one used by Galaxy (and maybe others?). If yours isn't the reference design, perhaps it is the same as the Galaxy design. Look at the pictures I posted above and see if you can tell.Quote:
Originally Posted by XSS
GALAXY 8800GT 512MB VGPU JUMPER
I think I figured the voltage jumper out. I just got another Galaxy 8800GT, and this one has the rectangular dual-slot cooler. The jumper on this card works as follows:
Looking at the front of the card with the monitor connectors to the left and jumper at the top, imagine these are the three jumper pins: "o o o", and this is the jumper: "[ - ]"
o o o = ~1.12V
[o-o]o = ~1.22V
o[o-o] = ~1.32V
That should pretty much take care of the need for a voltmod for this card for most people.
My new card overclocks much better than the one I have with the round heatpipe cooler. My round cooler had an uneven base, so it didn't work very well. The best I could do was about 675/1674/900 at 1.22V, and up to ~85 C loaded in atitool. The new one is doing 750/1836/1100 so far at 1.32V, and only 75 C loaded. It is a lot louder though, similar to the newer 8800GT stock cooler at ~80%, and the fan speed of it doesn't seem to be adjustable. I couldn't even hear the round cooler over my other fans at 100%.
Does the reference design 8800GT jumper have something to do with any vGPU increasing???Quote:
Originally Posted by mud
Could you help me find Vmod for non reference Palit 8800GT?
Some pics on Russian forum:
http://forums.overclockers.ru/viewto...599844#4599844
There are RT8802A on GPU. I can measure resistance if needed.
Thank you!
Here are some pics !
http://s2.directupload.net/images/071230/yu55gesy.jpg
http://s6.directupload.net/images/071230/yovwprpg.jpg
http://s3.directupload.net/images/071230/phfx8nfu.jpg
http://s2.directupload.net/images/071230/t8bpyaph.jpg
http://s5.directupload.net/images/071230/kjn87z4r.jpg
http://s4.directupload.net/images/071230/x743ivqv.jpg
More pics http://hbfreak93.hb.funpic.de/Graka/
Arrrhhh!!! It`a the same as my palit!
RED PCB!!! Such a shame for GeForce to be a red... :)
no, this Vmod don`t work on not-reference,
but we must to find OUR mod!!! :)