It's working for me 2. Before i could bench up to 740 and now 782 or so with default aircooling
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It's working for me 2. Before i could bench up to 740 and now 782 or so with default aircooling
which company card do u haveQuote:
Originally Posted by georgesod
gigabyte
evga
zotac ?
also when i modded my flash 1.05 to 1.1
i got increase at stable clocks 25 mhz gpu
currently using @
720/1728/999
now with latest driver trying
720/1782/999
seems to be stable
before flashing my bios
it was max stable
@695/1670
Probably a bad idea to do unless you have a recovery plan in mind. I'd be tempted to try this out, but I don't have a 8800gt and haven't looked at the card to see how the vids get applied (like on the 7900gt's etc)
But I did notice that position 0xBFD1 changes by 5 with each increase in vid. For instance, vid0 is 5f, 1 is 64, 2 is 69, 3 is 6e. Unknown of the hardware aspect, but just looking at this, if anyone wanted to try, the next value up would be 73.
And if you look in the voltage table editor, although you only have the option to go up to 4, you see in the hex that there's blank space for more to fit in. if you change this in the hex editor to also add in another vid (looks like after the 03, it'd go 00 00 73 04. Also the 04 in red at the beginning would change to a 05.
http://img257.imageshack.us/img257/7...ablevr9.th.jpg
http://img525.imageshack.us/img525/5567/hexqg2.th.jpg
completely at your own risk of course :p if it does, you'd be at 1.15v
I will wait for the brave souls and those with free 8800GT :D Call me chikn heheQuote:
Originally Posted by ziddey
This makes me feel that doing a hardmod is safer LOLQuote:
Originally Posted by ziddey
Who wants to be a guinea pig?
Or who has the knowledge to know whether this might work or not?
Goodness, you guys can't settle with the 1,1v bios mod? :P
I'd go for a 1.2V mod without a hardmod.Quote:
Originally Posted by praesto
For the record I finally did the 1.1 mod (thanks Jason, Fr3ak and everyone else) and it extremely easy. I created the boot cd with NERO and then went to the Folder where I have placed the required files (C:\video) and flashed from there. No floppy needed! :-)
Core went from 725 to 771(real) and shader went from 1753 to 1868. I just need some better cooling and I may be hitting higher.
Can somebody save BFG´s 8800 GT 512MB OC standard bios?
Cos I cant get nibitor to work with Vista X64.
xtremesystems.Quote:
Originally Posted by praesto
besides, the card got potential to be used.
hard modd is most likely the way to go.
Nah, I foud it allready from mkvtech.
Bios mod worked for me too.
Before bios mod, AT reported error anything above 702 for the core and 1674 for the sahders.
After the mod I can go up to 720 and 1836. But at 1836, At don't detect any error but I can clearly lots of yellow dots so I'm settling at 1782.
Now when I put both core and shaders at their maximum 720/1782, I got some very rare yellow dots. Seems to be ok at 720/1728.
Am I hurting the hardware when I see yellow dots ?
Anyway I'm going to test the stability with Crysis and if I don't have any artifact at this speed I'll be happy like that.
same hereQuote:
Originally Posted by deathman20
I want to hear what Mavke thinks...Quote:
Originally Posted by jason4207
At XS it is never fast enough :D I have a feeling I might be going for hard mod...
Forgive me father, for I have sinned. I forgot to measure max stable core overclock before the mod. With the mod, It seems to be stable at 756 core and 1782 shader. The shader could handle 1678 before. I've been running ati tool 35 minutes with shader and core clocks seperately and then with both overclocks at the same time. I still haven't figured whether the memory clock gained any stability from the increased voltage. Afaik, the benchies crashed at 950 memory, after realizing that, I simply downclocked to stock memory speed. So I don't have any high hopes for the memory.
I have gained 13% increase in the Crysis gpu benchmark from my core/shader overclocking.
well with mod
my current stable mhz is
720/1728/999
totaly stable
but i want to go further without hardware mod :(
I hope my card is special, I can do 713/1728/999 stable (60 trucks and 3 nukes blowing up simultaneously in Crysis, along with 150 mins ATiTool stable [No errors] with no voltmod.
:P
I have forsaken BIOSmod, and moving onto hardmod, good luck with raising up the BIOS volts guys!
Just tried flashing with 1.1V set in Extra box and the card artifacted like crazy at my previous stable clocks (775/1890/1900). Flashed back to stock bios and all is well again. Kinda weird that I would get less volts by using 1.1V.
I'll be a SOB, it worked. 735/1620/2016 pre-flash. 740/1782/2016 post-flash. Not too much of a gain, but pre-flash would give me the "Display adapter not responding" error while benching sometimes. Now, with post-flash settings, all benches run clean and smooth. This is with a Palit 8800GT (non 3 phase version). Hard mod is next, just need a damned magnifier. This card has some serious potential.
FYI, I've used NiBTor voltage editor to pump up the voltage to 1.4v.
Flashed the card, and done some benching at 786/1890/1060
http://service.futuremark.com/compare?3dm06=3800648
Just to add it wasn't stable but allowed me to run 3Dmark06 artefacts free.
Can you explain how you do that ?Quote:
Originally Posted by sobol
According to people who tried and measured the Vcore there was no change pass 1.1V and also according to the author of nibitor you cannot change the Vcore to more than 1.1V through his software :confused:
Quote:
Originally Posted by Mavke
And if you check in the 8800 GT vmod thread in the Xtreme GraphX Vmods subforum, there is an OVP on the 8800 GT that kicks in at 1.3V ...Quote:
Originally Posted by Mavke
Did you measure the Vcore with a DMM ?
Thing is that I've left my multimeter back in home and couldn't measure. Guess I've done it on 1.1v :) , sorry for confusion.
Quote:
Originally Posted by r4st4m4n
Too bad ... I was hoping for an easy solution to go over 1.1V since my soldering skills are not very good :p:Quote:
Originally Posted by sobol
Well now after some additional tweaking I am now at 756/1836/2016. Quite a nice little bump in performance for just a BIOS flash.
Anyone do this with a EVGA SuperClocked? 650mhz...
I tried it on my BFG OC but no difference.
\I must be a lucky bast, as my card clocks all the way to 780/1980/2000 (effective), without any BIOS tweaks. Just with a VF1000 fitted. Benches stable too. Im using a BFG 8800GT 512 OC.
I´ll think that BFG OC has higher Vgpu as stock.
It must do. Thing is, i had this card delivered to a mates house while i was working away, and he tested it and couldn't get it above 730 on the core. That was in an identical mobo (P5K-E WiFi AP) and with the stock cooler fitted.
I noticed all the BFG guys are getting to 780 or so....I bet they do have a higher voltage :) .
*smug face!* well, my generous mate, who babysat my card, also bought a BFG 8800 GT 512OC, and his clocks aren't as good as mine, so im wondering if it may be the improved cooling. I rarely see over 50c under load.
:p: 41C full load here :p:Quote:
Originally Posted by skullfcuk
My BFG 8800Gt with Stock Bios = around 745Mhz/750mhz
745Mhz@ Stokcooler
http://img100.imageshack.us/img100/181/745de5.jpg
750Mhz@ Stokcooler
http://img89.imageshack.us/img89/5292/750mhzxp4.jpg
I think BFG default bios voltage its same has other cards = 1.1v
http://img405.imageshack.us/img405/9725/11vef1.jpg
http://img405.imageshack.us/img405/1125/nibixe1.jpg
:up:
u do not have exact modeQuote:
Originally Posted by mascaras
that means u may have more voltage core :D
Quote:
Originally Posted by cefurkan
why??? other cards have any voltage in exact mode with Stok bios ??? :shrug:
regards
Does anyone know for sure the 2000MHz rumor about the RAM is confirmed? Is it really bad to run it over 2k? Because with the BIOS from the first post, I can get to 2150 no issue (due to the slack timings apparently).
Should be 1.05VQuote:
Originally Posted by mascaras
Quote:
Originally Posted by kiwi
XFX 8800GT Stok bios also nothing in Nibitor EXACT Mode :shrug:
regards
I assume you are using 3.5a Nibitor? I have XFX and there is exact volts @ 1.05 which I change to 1.1 :)
I also had nothing under the exact volts, but I made it 1.1v and it worked. Max OC increased as expected. I have the eVGA vanilla 8800GT, and it came w/ 600/1500/900 clocks stock.
i used the zotac 8800GT bios, works good, i would suggest that bios, its straight from nvidia, not altered by manufacturer.
link please GAR
:banana::banana::banana::banana: me the RAM gets crazy hot
i put one of my cards on watercoolin for 24/7 rig and damn the sinks on the ram chips are really hot lol
i have a low OCer
tops out at 729/999 on water and it did that on air for benching too :(
but still it's nice
Crysis even with AA enabled and high details is completely playable ,.,,... love it :)
Quote:
Originally Posted by kiwi
yep 3.5a nibitor
XFX 8800GT also nothing in exact mode , and with XFX 8800GT dont heven show extra voltage in exact mode :shrug:
:up:
grab a dmm and measure vgpu, if it´s above 1.12v on load then the bios is already modified ;)Quote:
Originally Posted by mascaras
here you go manQuote:
Originally Posted by jabski
http://www.mvktech.net/index.php?opt...filecatid=2259
What advantage does the Zotec BIOS have? I tried the BIOS in the 1st post w/ negligible results. Previously, I couldn't get over 951 on the RAM w/o getting artifacts, and even 951 was giving me problems after some time. I'm at 945 now.
After the BIOS from the 1st post I was testing at 956, but getting artifacts. I might be alright at 954, but it was getting too late last night for me to continue.
Honestly, I think I've got some pretty poor vRAM w/ others getting over 1000 easily.
Anybody tried this yet?Quote:
Originally Posted by ziddey
Same boat here Jason. Mine weren't stable at 959. Clocked back to stock for now. I'm just gonna test my current 740core/1782 shader which seems very stable. Two hours of ati tool without any trail of artifacts and at least 8 hours of crysis without any issues.
I was playing around w/ nibitor today, and was able to add entries, but I'm still afraid to flash it. I was having problems w/ nibitor acting funny until I found out I needed to change the VID bitmask to accommodate the additional entries. Now Nibitor seems to be working fine, but I'm still not sure if I can or need to change the amount of active entries to a higher value. Or should I change one of the 4 already active entries to a higher VID? Or just make Exact 1.2 (for now) and be done w/ it?
http://img108.imageshack.us/img108/2...toredithc2.jpg
http://img410.imageshack.us/img410/2...itorvidhq2.jpg
http://img267.imageshack.us/img267/5...orexactjm1.jpg
Comments? Suggestions? Brave souls?
Edit: I changed the number of active VIDs back to 4 b/c 8 was showing up as 0 when I reloaded the saved BIOS. But I can still select Entry 4 to be "VID 5 1.2v". Then I can set Exact to 1.2v. This seems like it might work, but I'm too chicken to try it first.
http://img256.imageshack.us/img256/9...getablewk7.jpg
http://img513.imageshack.us/img513/5...orexactcx5.jpg
Edit2: It seems that since I can't change the number of active entries above 4 (and have it stick) that it makes no sense to have additional entries in the table. Once I changed entry 4 to VID05 it overwrote VID03 to VID05. So any additional entries are ignored from the viewpoint of Nibitor. Now what I've done is to just overwrite the first 4 entries to have higher VIDs and higher corresponding labels (it starts w/ VID02 now instead of VID00). It shows up correctly in Nibitor, but I'm still scared to give it a try.
http://img209.imageshack.us/img209/1779/nibitorgf3.jpg
nice work. hope someone can test it out.
it's a shame there isn't a 2d/3d mode anymore. otherwise, test around with it on 3d mode, and if it locks up the card, just flash back. then again i guess that might also be near best case scenario.
good luck to whoever tries
Running the BIOS is the first post:
http://www.cyberimpressions.net/imag...7_3DMark06.jpg
Very impressed.
Could it just be heat thats keeping your numbers down?
I have a superclocked evga and under water (mcw60, mcr220+320 radiator) and ramsinks on everything, I get 38c/33c under load
767gpu/1955 shader/1021 memory.
I 100% agree, memory on this board sucks the big one.
I would try the flash too, but I don't think it will push my scores any higher. I have a feeling most of the these numbers are low due to heat, because on the original sink I couldn't get past 720/1780/1000
Also, does changing the pci-e voltage in the motherboard-bios do anything??
For the sinks I use mx2 compound a tiny tiny dab of superglue to hold the thermaltake copper sinks on. Works well and they barely get warm.
So far my highest 06 was 15,524
http://service.futuremark.com/orb/re...0&UID=12014329
Looks like Norbit 3.5B is out
http://www.mvktech.net/index.php?opt...filecatid=2263
Quote:
Changes in this Version
* Added support for PCI Express 1.x Compatibility
o GeForce 8800 GT (Gen1) PCI-E Mode
Any rich guy out there willing to risk it? I was barely able to afford mine so dont count on me. :)
a bios cant kill a cardQuote:
Originally Posted by shaolin95
That sounds like a challenge :P
Nice mod. I think it will be fine, as nibitor shows bios has integrity. It will either run at 1.2v as set, or run at the default voltage. these mods dont always result in a voltage increase, even though it is set in bios - remember the 6800's ;)
Still running the BIOS from the first post. Getting good results still.
http://www.cyberimpressions.net/imag...CZTweaked3.jpg
Then what are you waiting for? :up:Quote:
Originally Posted by heikis
whats the point of that bios i dont get it, you can change the voltage table inside nbitor without the hex............still 1.1 is max
Just one question:if I change the voltage in the nibitor,and then flash the card would that be the voltage the card will use??For example my card has a 1,32V for 3D load,if I put a modified BIOS with 1,4V for 3D load would that be the card voltage??Quote:
Originally Posted by GAR
You can't change the VID's w/o using hex. At least as far as I know. I'm pretty new to this.Quote:
Originally Posted by GAR
The card doesn't care what the labels say, but if it can recognize VID04, and/or VID05 (or more) then we might be getting somewhere.
Edit: I just tried it, and it doesn't help. As far as I can tell the card doesn't recognize VID04, and my previous max 1.1v OCs were no longer artifact free after i modded the BIOS for 1.15v. Oh well...time to go to Radio Shack!
Jason can you help me ??(about my question)Quote:
Originally Posted by jason4207
No it won't change. The label that put nibitor next to the VID is only to remember which VID correspond to which voltage.Quote:
Originally Posted by DMH
The only data that the card care about is the VID. So if your card has a default VID of 03, changing it to 04 and flashing the bios will change the Vcore. But if your are already using VID 04 and change the label to anything, it won't change the Vcore of the card.
Jason also tried to set the VID to 05 but it seems the card doesn't recognize it.
So if my card has a voltage 1 and 2,on the voltage 2 there was 1,32V and I change it to 1,4V,so if I understood correctly what you said it wont change correct??(sorry I'm not from a English country so sometimes get's hard to understand what you're trying to explain)
Did r4st4m4n answer your question? Do you have the 8800GT or some other card?Quote:
Originally Posted by DMH
Edit: Correct, your voltage won't change. All the card sees is VID00 and VID01. The label is irrelevant from the cards point of view.
Yes he,did it's just next to the post that you quoted,my card is a 8600GT:(Quote:
Originally Posted by jason4207
im positive there are no gains. I flashed my original bios with 1,1V gpu, higher clocks and thats it. my Vgpu at idle is above 1,1V and at load-3D it is even higher than idle. VGPU at 1,12V idle and 1,15V loadQuote:
Originally Posted by shaolin95
How do you measure how much voltage is going to the 1)GPU, and also to 2)RAM? I got a sneaking suspicion my 8800gt has a bad voltage regulator or something similar.
At stock fan speeds and bios I can only overclock to 635/900. Move the ram to 905 and I get errors. I have never seen such a bad overclocker of a card before, not even when I first got my radeon rage 2 card.
Multimeter!Quote:
Originally Posted by counsol
Set the fan speed higher and see how well it turns out. If that doesn't work open the cooler and see if anything is obviously messed up. Does seem like a bad clocker.
Quote:
Originally Posted by Hazaro
I tried an older bios from a SC and now I can overclock to 650ish maybe 670 still testing.
Still a bad clocker but somewhat salvagable.
Where do I place the multimeter thongs to test the voltage, for both ram and gpu?
Thank you.
No problem.....oh, the vGPU should give slightly higher volts loaded (3d app)than at idle (desktop).Quote:
Originally Posted by counsol
Thanks for this "tweak" guide ;)
My ASUS 8800GT:
Before i was able to benchmark at 740/1825/1900 and now i am able to do it at 770/1890/1900... not bad ;)
I have to do something with the vram frecuency, if i try to go over that speed playing crysis i ALWAYS get red squares all over the screen and it freezes... :(
I have successfully flashed my Club3D 8800GT, so now it runs quite stable at 771/1836/1000. Before flash the core was 720. So quite impressive.
So, has anyone tried the jasons method with more then 1.1V? Does it work?
edit:
I can confirm that Jason's type of method does not correct the voltage to 1.2V, but stays at ~1.13V. Also changing all the others VIDs to 1.2V doesn't work either. Anyway, it is good improvement for me (50MHz on core).
Can anyone tell me if this works for an evga superclocked 8800gt?
Or at least what your experience/results have been...
It depends on every single card.. Try it, you cant break anything:)
wich bios are you guys using to flash your card.....ones with good results????
I flashed my KO with my OWN stock Bios that I just added the 1.1 option to.
In general our own card BIOS. Minimum risk:)
Yes, but some bioses will give you higher overclocks. I can up you the orig bios I have and you can check LOLQuote:
Originally Posted by GaS
To minimize the risk you can just grab another bios from the same manufacturer and check the memory timings using nibor.
OK thats about RAM timings.. But anyway, lower timings with lower frequency give you almost the same result as higher frequency with higher timings. So therefore actually no improvement. I thought we were talking about voltage tweak inside BIOS...
Ok guys, I only have a USB flash stick, but no floppy drive. How can I flash my Inno3D 8800GT BIOS?
Thanks
There are some ways with a USB stick but it's not that easy (Google it ;)). Someone said he succeeded to flash by creating a bootable MS DOS CD with Nero. After booting on the CD you should be able to browse your HD.Quote:
Originally Posted by smsmasters
I made a USB stick bootable by following this http://www.bay-wolf.com/usbmemstick.htm
Are there any modified bioses for the 8800 GTX? I have a Gainward 8800GTX and it isnt good at overclocking. The highest I got this thing to so far is 610/1470/970.
Hi! My Zotac (660-Version) is flashed to 730/995/1800 and runs really great. I have used another bios from here
http://extreme.pcgameshardware.de/showthread.php?t=5170
because it works better than the one of the first posting here. That one is also stable with ATI-Tool and 3dMark06, but the Crysis-Demo only shows a :wth: With my bios everything´s fine.
My card is cooled by Accelero S1 with a lovely Scythe-fan. No possibility to get it over 60 °C. Is there any possibility to reach a higher GPU-voltage than 1,13 V by biosflash? Up to 1,2 of 1,25 V I would really try it ...
If so I could send my actual bios for reworking :D
I've successfully flashed my Inno3D 8800GT BIOS with 1.1V using a bootable USB flash disk.
Testing to find my max overclocks now.
Before 1.05V
GPU: 700MHz
Shaders: 1700MHz
Memory: 1000MHz
After 1.1V
GPU: 742MHz
Shaders: 1782MHz
Memory: 1000MHz
I'm keeping my memory at 950MHz. Is the speculation about the cards failing with the RAM set at 1000MHz true?
Everyone is just referring to subjective results aka "max stable frequency". Has any of you simply measured the result with a multimeter? It takes a few seconds and is highly objective...
Some people did the measurement and confirmed it increases the voltage. They also confirmed that it is not possible to go higher with a bios flash.Quote:
Originally Posted by Dr.Dos
Max stable frequency might be subjective, but before the flash, my card would simply crash immediately (BSOD/reboot) at the frequency I'm using now. The only thing I did is to edit my card bios to use VID 04 (1.1V) instead of VID 03 (1.05V). I didn't use another bios just edit mine.
So I think we can conclude that the bios mod really increases the Vcore ;)
Thanks for the link. I tried to find a good tutorial last time but only found obscure explanation or some of them requiring a floppy :rolleyes:Quote:
Originally Posted by smsmasters
I did the Nero CD and then navigate the HD, very easy and no need to install a floppy.Quote:
Originally Posted by r4st4m4n
I've seen someone catch their MoBo on fire sticking probes in there. I'll only measure live voltage if I solder leads on, but I don't want to hard mod the board...yet.Quote:
Originally Posted by Dr.Dos
OCing results are the ultimate desire anyway, so they speak for themselves.
I did measure the vGPU, and it is 1.1337V with the biosmoda against 1.057V with the stock bios.Quote:
Originally Posted by Dr.Dos
Once again: I would try a modbios that could give me more than 1,1 or 1,13 V ... but where is it?Quote:
Originally Posted by scamps
I would also like to try.. Anyway, what temps do you have in Crysis with S1? And what clocks?
With S1 and a 100 (not 120!) mm fan of Scythe approx. @900 upm I never get more than 60°C. Clocks are 730/995/1800 - ever, because flashed!
And temps with stock cooler at these clocks and voltage(if you tried)?