what are the timings on the card (stock)?
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what are the timings on the card (stock)?
timings? no idear...
doesnt the leadtek 6600gt extreme bios from the databse work? should i rather make a copy of my bios and post it here? how do i make a copy of my bios?
to make a copy of your bios just use savebios (not sure where to get it. check mvktech.net). I meant stock clocks (ie 500/500).Quote:
Originally Posted by saaya
stock clocks are 550/1125
cant you use the leadtek 6600gt extreme bios from the database?
im sure its the same bios i have on my card now...
OK, here is your bios. It has 1.4v, and stock clocks (didnt know if you wanted me to up them any). As per your earlier post, If anything goes wrong, there is definetly at least 1 person that went through something like that here that could help you. Nothing wrong should happen though.
Can anyone mod bios for XFX 6600GT PCIE 128MB?
i have 2.0ns samsung.
thanks
i saved bios with savebios but it's only .BIN
and opened this bin with nibitorv but all fuxored...or grayed :(
I dont know why it would be .bin, cause the one I got off mkvtech.net was .rom. Here is your bios, but it is a rom bios, so you could try flashing it with this. Also, you could download hexeditor and change it to .bin, or I'll do it if you want. Here it is as .bin and .romQuote:
Originally Posted by TEDY
yeah but still 1.4v :(
thank you !
Well .bin or .rom doesn't matter. Normally .rom is the most common used for NVIDIA BIOS's and .bin for ATI BIOS's...
is there any mod-bios for Chaintech 6600GT agp? the card didnt have any temp monitoring...
If you can provide your BIOS we should normally be able to activate the temp monitoring...
will post it here later thanks mavke... i still under 12hours priming my proc...
Okay! That is fine and then I can look at it.
Mavke here's the bios for Chaintech 6600GT agp. if possible can u do two vers of it:
1. original bios + temp monitoring
2. modded with some tweaks + temp monitoring
so far the card work fine interms of performance but still cant break the 10k barrier... with my system only can reach 9.9k
http://service.futuremark.com/compare?2k3=3770305
thank. :)
Okay I will check and get back to you... But don't get impatience, cause I am leaving to Stockholm in about an hour and I will only be back on Friday (yeah for work, and this modding and stuff I do next to working)...
But just try NiBiTor v2.0a and you can make the above changes yourself via that Tool. :)
I dont mind modding the bios for you. I have 2 different bios. The first one has 1.4v and the temp monitoring, and the second just has temp monitoringQuote:
Originally Posted by rzonealley
thanks a lot moddolicous...
will try it out n tell u the result later.
edit: the temp monitoring work fine :)
what usually people edit there in nibitor?others than increasing the voltage?
i'm quite new in this bios modding.
I have Sparkle GF 6600GT AGP with memory 2.0ns, i download form MVKTech site orginal bios to my card and mod this bios to this file. I search this program for more volt on chip beacuse i wan't bios vmod for card. I'm stupid also this program not give more volt ( higher on 1.4v ) ? :am: Please verify this mod bios file.
Sory 4 my english ;)
Ok i'm flashig the bios mod by me whit MVKFLash_SLI_Flash.V1.2. A clocked card in bios: core 550MHz and memory 550MHz. After flash i go to windows and looking clock of card in driver page; core ok ( 550MHz ) but memory 700MHz :confused: What i wrong doing?
Sory 4 me english
how to remove the hardware limit on bios?
Hardware limit? What do you mean?
Hi all...I have a Prolink 6600Gt 128Mb AGP...I have overclocked it by modding BIOS... so now I stay at 545/1200.....Very low result for the CORE!...at 580Mhz card freezes...at 570 works well but there are some green artifacts...at 560 Mhz no problem but memory frequence stops at 1050Mhz beacause creates artifacts...with 545 Mhz Core Speed, memory at 1200mhz has no artifact. The Core has by default 1,4V...is it possible to increase it by the bios? I have attached my frequency modded bios...can someone voltmod it? Thanks to all!
Hardware limit. when u oc the driver will detect the limitation of the card provided by bios right? in example max for my card clock is 590/1260. when i push it more on core or mem and test setting it will revert back to the previous clock. i guess its becoz of limitation thingy isnt it? i'm thinking bout removing the limitation and see if my card can bench at 600/12xx or hopefully 600/1300.
i dont know the things such a limitation is exist or not. but if theres limitation i'm willing to remove it thats what xtreame is all about isn't it. hehe
And you are lucky! My card stop to go with driver overclock at 580/1100....now I stay at 545/1200 thanks to Bios Update....Quote:
Originally Posted by rzonealley
But haven't you any visual artifact at 590Mhz?? In 3dMark03(Battle of Proxicon) I see green triangles on robots..
Hardware limit.....
RivaTuner 2.0 RC 15.3 \ NVIDIA \ Overclocking
and
DisableInternalClockTest.
Whoa, so I can just get a BIOS for my eVGA 6600GT AGP That will raise the core clock instead of having to do a volt mod? I'd much rather do that. I enabled temp monitoring through hexedit and changing the cards, BIOS but I don't know how to do anything beyond that.
Hmmm see this mod.Quote:
Originally Posted by Nubius
Hmm page isn't loading as of right now =/ I'll try it later though, guess it's bogged down or soemthin right now. I see you have your 6600GT quite nicely OC'd.....is that with a hardware voltage mod?
Yes vr-zone isn't loading; try later.Quote:
Originally Posted by Nubius
My card is water cooling, stock voltage and no vmod.
Damn nice dude. Hope my card will want to do that good with water cooling without any mods. MAZE4 GPU?Quote:
My card is water cooling, stock voltage and no vmod.
thanks devilek will use those riva tuner. currently i'm still running those stock bios with temp monitoring. need better cooling for it. have to wait for better cooling since artic cooling wont made any cooler for 6600GT agp vers. maybe going WC like u. what water blobk did u use?
Guys! I used Nibitor 2.0a from www.mvktech.net to mod frequencies...but VGPU is set to 1,4...as default. Nibitor doesn't allow to increase it but it can show us the HexCode.....so....it's also possible to increase the VGPU manually because....
130 (1,3V) = 82 (hex)
140 (1,4V) = 8C (hex)
150 (1,5V) = 96 (hex)
If we set it to 96 in HEX we should have 1,5V.....or not?!?!? is there an hardware limit? has someone tried it?
Hi :)
My GPU is cooled by Abandon :D
Exactly this
http://www.dzikie.net/news/img/1849_u2-graf.jpeg
@Nubius do You see this mod on vr-zone ?
Sory 4 my english
im also interested in this, my card is the same, does anyone have an answer?Quote:
Originally Posted by gianvito
Yes I did thankya :D Got the site to load last night actually. Probably the best and cleanest voltage mod instructions I've seen for that card. I was also sent this photo by a guy on these forums:Quote:
@Nubius do You see this mod on vr-zone ?
http://www.xtremesystems.org/forums/...chmentid=26865
It looks like that solder spot is the back end of that resistor they show in Vr-Zone.....but now I'm paranoid lol, don't know which one to trust. I think I could much more easily solder a leg to that one on the back, and then the other variable resistor leg to a random ground point, than trying to solder each leg to each end of those tiny resistors on the front.
I have no soldering skills lol, and I'd have to go out and buy a fine tipped soldering iron. As far as pencil mod goes....hmm I might give that a shot, but first I need to see how far I can go when I get water and then decide if attempting to fry my card is necessary :p:
I 3rd that interest. I'm way interested in knowing if I can simply change voltage through the BIOS instead of having to try a volt mod.Quote:
so....it's also possible to increase the VGPU manually because....
130 (1,3V) = 82 (hex)
140 (1,4V) = 8C (hex)
150 (1,5V) = 96 (hex)
If we set it to 96 in HEX we should have 1,5V.....or not?!?!? is there an hardware limit? has someone tried it?
EDIT: Got nibitor....glancing around through the BIOS.....terrified to actually try anything though lol, I don't have a PCI card on hand if things go wrong...plus I don't have but stock cooling so currently I don't need to be raising the voltage. Also, how do you know that 96 is the correct hex for making the voltage to 1.5? I don't say that in a way that I'm doubting, you I'm just curious for informational sakes because I have no clue and am interested before I go changing stuff.
just an FYI, doing anything in nibitor wont affect your card unless you actually flash it, which requires a disk :)
lol yeah I know that, I was messing around with the options and whatnot, just to see what part of the BIOS it changed. The only BIOS 'modification' I've done was using Hextreme and enabling the temp monitor using info from nvidia forums:Quote:
just an FYI, doing anything in nibitor wont affect your card unless you actually flash it, which requires a disk
http://forums.nvidia.com/index.php?showtopic=1945&st=0
But that had people who had done it successfully and said it worked great. Raising the voltage in this case is a guess right now :p: but I'm definitely interested in it.
same here
Aright I found this program called VGABIOS.EXE that's supposed to test a BIOS for you so you don't have to flash the card with it and possibly screw something up.
Put it on the floppy with the modded BIOS with 96 hex for supposed 1.5v
(BTW: Program can be found here - http://whitebunny.demon.nl/hardware/chipset_nvidia.html)
And I typed in the parameters it said to on that page I just linked.
BIOSVOLTS.ROM was the name of my BIOS
VGABIOS -FBIOSVOLTS.ROM
And it runs I guess, it doesn't give any kind of confirmation or error or anything like that, so I don't know if it's safe to flash it with that newly modified BIOS with the 96 hex or not lol. Someone else want to give it a go and see if they find anything else more than myself?
Well...it's 96 beacause 150(1,5V) in hex is 96... :) ...if you open the Windows Calculator and set it to "scientific" you can convert a decimal number to a hexadecimal one...Quote:
Originally Posted by Nubius
but i haven't tried it...
lol crazy! I actually did try it, opened up windows editor and whatnot and yeah you're right. Typed in 150 hit hex and boom up came 96.Quote:
Well...it's 96 beacause 150(1,5V) in hex is 96... ...if you open the Windows Calculator and set it to "scientific" you can convert a decimal number to a hexadecimal one...
You ever used that VGABIOS thing I talked about in that previous post? I'm guessing i did it right, I typed in the parameters explained on the website, but it didn't give any error or confirmation, so I assume you go by if your screen is garbled or just disappears?
I'm afraid to go through with the flash though lol. Plus I only have stock cooling right now, and I don't care to try and poke around with the multimeter while it's in the case :p:
I want another guinea pig to try it and let me know of it's success hehe
Aright, was feeling a bit curious...perhaps some may say crazy.....but I went ahead and tried to flash with the BIOS I saved using that nibitor program. I changed the voltage area in the hexview from 8C to 96 and then saved the file. Integrity was green everything looking good.
Used that VGABIOS.EXE one more time for the hell of it. Same thing, no errors, no confirmation or anything.
So then I proceeded to flash
nvflash -5 -6 BIOSVOLTS.ROM
Then it says I/O error: Cannot read BIOS
Sooooo yeah, don't know :stick:
so...doesn't it flash the bios?
the vgabios.exe doesn't flash. It's supposed to just show you that it works, so like I said I guess if your screen goes garbled, you pop out the floppy and reboot and then boom you don't have to worry about a screwed up card.
But it says it can't read the BIOS file so nvflash didn't flash it =/
So...when you tried with VGABIOS there was nothing on the screen?
mmm...there is another thing to try....
in nibitor, in the Voltage tab there is VID MODE tab.
so in the bios, any voltage has a VID....so 1=1.2V and 3=1.4V.....
so we must mod the hex code for the voltage to 96 and the VID number to 4........i think
now i try with VGABIOS....
Well it just said likeQuote:
So...when you tried with VGABIOS there was nothing on the screen?
VGA BIOS 1.10 Copyright
Usage VGA BIOS -fbios.rom -tM
and a little other tidbits of info, but nothing like 'BIOS TESTING CONFIRMED'
or 'ERROR BAD BIOS'
EDIT:Hmm I didn't do the VID mode tab, I just clicked the voltage tab, then brought in hex view and changed it from 8X to 96...I just did the same in Hextreme, but I haven't tried flashing again, Honestly I'm scared lol. I'm poor, I can't afford FX-55's and phase change, and a couple 6800Ultras and crap. If this dies I'm screwed, and I have no PCI card to use for backup precautions.Quote:
mmm...there is another thing to try....
in nibitor, in the Voltage tab there is VID MODE tab.
so in the bios, any voltage has a VID....so 1=1.2V and 3=1.4V.....
so we must mod the hex code for the voltage to 96 and the VID number to 4........i think
now i try with VGABIOS....
I suppose I could 'blind flash' like the guy says...with nothing on the screen, but yeah I'm paranoid
My VID info is showing 0 = 1.3v and 3 = 1.4 anything in between says ??
Like I said I modded the hex to 96, but when I tried flashing nvflash gave me that I/O error, could not read BIOS
VGABIOS says you that you are typing wrong...if your bios is called "bios.rom" you must type:
VGABIOS -Fbios.rom
now I'm trying....i will inform you about it...
well...I tried with VGABIOS...it says that Bios is loaded succesfully.....now i will procede to flash..
ya know what, why dont you just let me flash it cause i have a spare pci card in case anything screws up. ill let ya know how it turned out within half an hour
Can someone please change my gpu voltage to 1.4v and 1.5v ? I tried NiBiTor 2.0a and it doesn`t show the voltages. Card is a Leadtek 6600 GT AGP normal edition :). Here is the original bios.
mmm...you must save your bios with NVFLASH...Quote:
Originally Posted by mare87
you must type: nvflash --save leadtek.rom
and then upload that file
That's what I did type dude. My BIOS file was named BIOSVOLTS.ROM and I typedQuote:
VGABIOS says you that you are typing wrong...if your bios is called "bios.rom" you must type:
VGABIOS -Fbios.rom
now I'm trying....i will inform you about it...
VGABIOS -FBIOSVOLTS.ROM
I never got any message like 'Bios Loaded Successfully' though.
Aright I've attached the BIOS file I modded. Using the hex I changed it from 8C to 96, and the temp trick is also enabled, but I had that done previously so that was already within the code.Quote:
ya know what, why dont you just let me flash it cause i have a spare pci card in case anything screws up. ill let ya know how it turned out within half an hour
Hmm, nibitor doesn't want to open that BIOS you linked, and using Hextreme I don't know what part of the code to change =/Quote:
Can someone please change my gpu voltage to 1.4v and 1.5v ? I tried NiBiTor 2.0a and it doesn`t show the voltages. Card is a Leadtek 6600 GT AGP normal edition . Here is the original bios.
EDIT: Gianvito, did you try flashing with the voltage hex changed? Or did you Plaque?
Aright, my file name is BIOSVOLT2.ROM as you can see it's the one I attached above.
I just booted from the floppy and this is what I typed in
VGABIOS -Fbiosvolt2.rom
and it says the following
That's exactly what my screen looks like after I've typed in that command. So as you can see theres no error, no confirmation or nothing.Quote:
A:\>VGABIOS -fBIOSVOLT2.ROM
VGABIOS Loader Version 1.10
Copyright (C) 1997-99, Nvidia Corp. All rights reserved
Usage: VGABIOS -fROMFILE -tM
ROMFILE is VGA BIOS ROM
M is TV Mode (0-5)
A:\>
If I type in just VGABIOS without anything else it'll say VGA BIOS NOT FOUND! at the end.....sooo yeah I don't know if it's working or not
Quote:
Originally Posted by gianvito
Thanks for the help. Now NiBiTor reads it ok, but my max gpu volts are 1.4v? And I think the gpu is at 1.4v at the moment. Here you have the new, original bios. Please mod it for me :).
Here ya go dude. I've attached your BIOS file and changed the hex which is supposed to make it 1.5v according to the posts above and throughout this thread. Of course make sure you can unflash if anything goes wrong and I've renamed it so that you can keep the original on the disk too, as a backup, but I changed that one and only option for you like you wanted, so let us know if you can get a higher core clock or if everything goes smoothly.Quote:
Thanks for the help. Now NiBiTor reads it ok, but my max gpu volts are 1.4v? And I think the gpu is at 1.4v at the moment. Here you have the new, original bios. Please mod it for me .
do you know if the mod has worked? anyone try ocing this? i wasnt able to flash it because of cpu problems
Nope, I modded that guys leadtek BIOS for him, and he hasn't replied back with any results :(
lol I was hoping you'd wind up doing it
Sorry guys I was sleeping :D. The guinea pig is safe :). Before flashing I ran rthdribl for full load temps and they stopped at 64°c for the GPU. Then I flashed with Nvflash 5.13 with nvflash biosmod.rom command because nothing else works :rolleyes:. Then it flashed and the temps are the same. Neither did OC-ing improved :(. In NiBiTor under volt section it doesn`t show anything under 3D.
poopy. could you test with a multimeter just to be sure?
Mmm...I tried to flash and it flashed succesfully but I'm having problems with Coolbit and RivaTuner.....if someone can measure the Voltage directly on the card please do it...
Hm can someone provide a link for checkpoints ? Thanks.
http://www.xtremesystems.org/forums/...chmentid=26865
Theres voltage spots :D
Nibitor won't show anything under 3D voltage because 1.5v is beyond what the list will show. Technically this should mean your card is infact running at 1.5v unless like someone though earlier, theres a hardware limitation and without actually doing a volt mod the BIOS simply won't let it run at 1.5v
So two of you have flashed your cards with the 1.5v BIOS and it worked eh? Might have to give it a go, but now I'm thinking of doing eVGA's step up program and getting the 6800GT :p:
Damn...I'm having problems and I can't format pc now because I must finish a work....please someone measure the Voltage on the card after flashing bios with 1.5V...
I was hoping mare was checking the voltage spots since he asked for a pic of where they were :D
I figured you'd be able to tell just by if you could overclock more or if your temps were significantly higher, but he's reported no better OC's
I don`t promise you that I will check the voltages, because I don`t own a volt meter and my friend that has one, isn`t at home.
well i would just like to say....i figured out how to flash to a differant vendor's bios...ROFL im so happy.
here is the command..
nvflash -4 -5 -6 <bios>
have fun, although i warn you, you must reinstall you drivers (at least i have to right now)
Yeah, I was aware of that actually because of this tutorial:
http://forums.nvidia.com/index.php?showtopic=1945&st=0
It's just how to enable temp monitoring, but this was before I knew of nibitor and it's ability to simply click a check box and enable it lol.
So let me get this right....we've had two people flash with the 1.5v BIOS and no problems have occured besides the simple fact we really don't know if it's actually running at 1.5v currently?
im going to flash to 1.5 right now, so hold on 5 min...brb
booted fine, im gonna test if it actually had an effect (overclocking wise)
no differance in OCing, i think we're doing something wrong here..wish some of the more experienced modders would help
well, we're changing the hex....that's all we can do, so if it's a hardware limitation it's simply just not gonna go to 1.5v....lets hope it doesn't revert to something even lower though. So if 1.5v doesn't work perhaps it's just best to reflash with your known good 1.4v regular BIOS and just do a volt mod as that seems to be the only way of actually getting the extra volts.
true true
Mmm...I've also tested it...no change! I think that VMOD isn't functioning... But if someone can measure it on the card please do it..
I'm assuming it's a hardware limitation then. I downloaded the 6800GT's BIOS to compare to the Ultra and when you do the 'Extend Voltage Tables' on the GT it will actually show a 1.6v even though I believe it runs at 1.3v normall.....so I think if you can't have the voltage be shown it simply wont work even when editing the text. Just my guess though. Without someone measuring the voltage spots we wouldn't know for sure....but I'm going to be using the eVGA step up program and sending this card back in to upgrade to the 6800GT so I'm kind of paranoid about trying to measure it and accidentally frying it
I'm having problems running two 6600GT's in SLI, one is Gigabyte and the other one is Leadtek ... Whenever i plug them in only one works, and it says to remove the "non SLI-capable" card. I thought of flashing both with the same BIOS but they are of different size, Gigabyte's is 64000 bytes and Leadtek's 64512 bytes, so i just modded the Gigabyte BIOS with Leadtek's settings from Nibitor and re-flashed it ... useless. The mobo is DFI Ultra-D modded to SLI, i used 2X6800 in SLI before so that works ... i was wondering if you guys have any ideas on what else i could do ... any kind of help is welcomed.
I don't think you're going to be able to get it to work with 2 different companies brand cards.
Well, if it wasn't for the extra 512 bytes is Leadtek's BIOS i could probably manage to make it work. I've seen cards from different manufacturers in SLI before (Leadtek + Gainward), so it's not impossible.
Why didn't you just flash them both with the same BIOS. Basically they are exactly the same card from different manufacturers. And bIOS size is unimportant as long as it isn't bigger than 65k !Quote:
Originally Posted by Micutzu
Presumably flash the card that is not being accepted by the SLI setup ?
Well the Leadtek has board ID 4300 and Gigabyte has D700, so i'm thinking they might not be really identical ...
Many manufacturers appear to have set their 6800GT's GPU volts at 1.3. However, the 6800GT BIOS can easily be changed to set GPU at 1.4 or 1.5v if wanted. Mind you, 1.5v on the GPU is not advisable unless you are using water cooling !Quote:
Originally Posted by Nubius
The only main way they can be incompatible with each other, is if one were PCI-E and the other was APG type. But since both in your case must be PCI-E, I don't really see aproblem.Quote:
Originally Posted by Micutzu
What are the main differencies you know about them. For example, do they have diff memory size and type ?
Do they look different, and why ?
No, they're identical as far as the aspect is concerned ... both 128MB and even use the same memory chips. I'm not even sure i could flash a BIOS of a different size on any of the cards though.
Since VGABIOS is run in DOS, the bios file name can only have max of 8 chars in front of the dot, and max of 3 chars after the dot. Otherwise DOS will not recognise the vgabios command. Your bios filename has 9 chars before the dot ?Quote:
Originally Posted by Nubius
Flashing of a vga bios is very simple, but it must be done in real DOS. Usually using a DOS bootable floppy !Quote:
Originally Posted by Micutzu
And in your case, it is probably better removing the second card from your sli setup.
So you would Flash your BIOS in DOS using nvflash.exe v5.13
nvflash -r (removes any protection)
nvflash -b ORIGBIOS.ROM (saves original bios)
nvflash -4 -5 -6 BIOSNAME.ROM (flash new bios file)
However because of DOS filename restrictions, "ORIGBIOS.ROM" and "BIOSNAME.ROM" must have max of 8 char's in first part of filename and max of 3 char's in extender part, otherwise DOS will not recognise the command.
And note, the -4 -5 -6 command switches will force a flash regardless of any ID mismatches.
But obviously always make sure you ONLY flash a AGP type card with a supporting AGP bios, and a PCI-E type card with a supporting PCI-E bios !!!!!
EDIT:
People who flash BIOSes, whether they be mobo or VGA, should never do so unless they also know of a recovery solution, just in case of the unknown !
And recovery of a VGA BIOS usually means access to a second, usually PCI, card. Failing that, recovery can also be done by a Blind Flash, where you simply put the Flashing commands in the booting floppy's Autoexec.bat file. In this way the flashing command is automatically run while booting to DOS. Of course, this also requires that you set the Floppy as the first booting device in the mobo bios setup options.
Yeah but nibitor has those higher voltages selectable in the drop down menu whereas to set 1.5v for a 6600GT takes editing the HEX inwhich then if you reload that saved BIOS, the drop down menu won't show anything. This basically tells you that the 6800GT doesn't have a limitation and will accept those higher volts since it's in the drop down menu but not the 6600GT.Quote:
Many manufacturers appear to have set their 6800GT's GPU volts at 1.3. However, the 6800GT BIOS can easily be changed to set GPU at 1.4 or 1.5v if wanted. Mind you, 1.5v on the GPU is not advisable unless you are using water cooling !
Hmm crazy, didn't know that, previous BIOS name was BIOSVOLTS lol so again that's 9 characters...oh well I'm sending in my 6600GT to eVGA and stepping up to the 6800GT sooo I'm not gonna bother with it ;)Quote:
Since VGABIOS is run in DOS, the bios file name can only have max of 8 chars in front of the dot, and max of 3 chars after the dot. Otherwise DOS will not recognise the vgabios command. Your bios filename has 9 chars before the dot ?
NiBiTor doesn't actually measure anything, it only translates the Performance Level Indicator values stored in a BIOSes GPU volts lookup table. The 6800GT's lookup table binary string for 1.4v is "8C01", and for 1.5v is "9603". It is the "8C" and "96" parts that NiBitor translates, but it is the "01" and "03" parts which are used as a bit mask to cause the volts to happen.Quote:
Originally Posted by Nubius
If NiBiTor does not allow a proper dropdown menu for your 6600GT BIOS, it is probably because it doesn't yet fully support that particular bios. It is a developing tool, so maybe with next update ?
:) i'm flashing video BIOS'es since the GF2 era mate, i know how to do it :) My problem was WHAT to flash really, not how to do it. Anyway, long story short, i did it, i flashed a modded Leadtek BIOS on the Gigabyte ... i had to modifiy the board ID from the Leadtek BIOS with the one found in the Gigabyte BIOS, but Nibitor was showing it wrong (D700 when in fact it was 4301) ... a little messing around and i found it, not it's working hehe ! Thank you for the support.Quote:
Originally Posted by jimmor
I know all of this already. I'm just saying the 6600GT BIOS's dont have it basically 'implemented' like the 6800's do. That's why a lot of people with an ultra will flash with a GT BIOS because of faster RAM timings, but will need nibitor to raise the voltage to 1.4(or was it 1.5?) like the ultra should be.Quote:
NiBiTor doesn't actually measure anything, it only translates the Performance Level Indicator values stored in a BIOSes GPU volts lookup table. The 6800GT's lookup table binary string for 1.4v is "8C01", and for 1.5v is "9603". It is the "8C" and "96" parts that NiBitor translates, but it is the "01" and "03" parts which are used as a bit mask to cause the volts to happen
No problem, glad to help !Quote:
Originally Posted by Micutzu
By the way, other than by you just telling me, I had no way of knowing how much you know about flashing bioses, or anything else for that matter.
And for interest, why did you feel the need to modify a board ID ?
The -4 -5 -6 command switches of nvflash program are specifically included to ensure that the program will ignore all ID discrepancies.
Just to clarify things, if only for me ?Quote:
Originally Posted by Nubius
My understanding of things is that a typical 6600GT has 2 options in its GPU volts lookup table, "8200" and "8C03", which is obviously translated by NiBiTor v2a as 1.3 and 1.4v. The table can however have 4 positions, ie the missing "01" and "02" options. However not having a 6600GT, I have no info on what voltages either of those bit masks produce ?
On the other hand, a typical 6800GT GPU volts lookup table, which is also four option, will typically show as 1.1, 1.3 and 1.4v. The 1.5v option of "9603" must be added with a Hex editor, because for some unknown reason when added by NiBiTor v2a it shows up as a 1.6v option ?
Hmm, i didn't know there was a -4 ... and by using only the -6 command switch i always got "board ID mismatch".Quote:
Originally Posted by jimmor
It isn't actually documented, but the -4 command switch forces a flash regardless of any ID differencies. So it is important to only use it where it is known for example that there is no GPU chip incompatability.Quote:
Originally Posted by Micutzu
OK, didn't know that, 10x.
For 6600GT:Quote:
Originally Posted by jimmor
1.1V-6E
1.2V-78
1.2V-82
1.4V-8C
Hope it helps.
Thanks, all information is good.Quote:
Originally Posted by Micutzu
Hi, i'm new here, can anyone mod my BIOS to 1.5V please?
Also my BIOS is unoverclockable, don't know how to bypass it? Any ideas?
File attached, thanks a lot
According to the posting from Micutzu above, a 6600gt can have max of 1.4v via a BIOS option.Quote:
Originally Posted by te_le_com
And NiBiTor v2a shows your linked BIOS to already be set at its max of 1.4v in both 2D and 3D modes. So only way to get 1.5v is by hard voltmodding to your card !
Also, there are no unoverclockable bioses/cards, so not sure why you should think you have one ?
Rivatuner is a good tool for overclocking, however it is important that you you first enter Rivatuner's database via the "Power User" tab, "Overclocking" sub section, and Enable the "DisableInternalClockTest" option. Otherwise any overclocking attempts will automatically fail.
The Internal Clock Test is the reason many people have overclocking problems when using either coolbits or rivatuner !
Well if you do extend voltage tables you'll only get lower tables....I figured it was all up the BIOS whether or not nibitor would see the ability to raise the voltage beyond 1.4Quote:
My understanding of things is that a typical 6600GT has 2 options in its GPU volts lookup table, "8200" and "8C03", which is obviously translated by NiBiTor v2a as 1.3 and 1.4v. The table can however have 4 positions, ie the missing "01" and "02" options. However not having a 6600GT, I have no info on what voltages either of those bit masks produce ?
I also notice that in the GT bios it jumped from 1.4 to 1.6 but 1.5 wasn't available....why? No clue....I figure it has to do with the card makers limitations or something along those lines, because I've already changed the hex for 1.5 voltages, a couple people have tried it and no hotter temps or better OC, so I assume it simply wont work. It's at it's 'hardware limits' if you well, whereas a GT obviously has a resistor that can handle more voltages, and the BIOS regulates it or something like that