With the previous version of KGB i could only boost to 1180(more or less) without crashing in heaven benchmark now i can do it at 1225 max boost clock.Quote:
Originally Posted by andressergio
Printable View
With the previous version of KGB i could only boost to 1180(more or less) without crashing in heaven benchmark now i can do it at 1225 max boost clock.Quote:
Originally Posted by andressergio
great man !Quote:
Originally Posted by nuno_p
Sure you were using the same voltage? That's just weird if not.
1359 on both my cards @ 1.21..... as long as I keep them cool that is :)
Can only game up to about 1306, asus heatsinks are junk and hit 86c+ easily :(
Yup, same voltage.Quote:
Originally Posted by CryptiK
Nice clocks man, bench or game at that if temps are controlled? What is 'cool' though? Under 40-50*C or you talking sub zero night air etc? Canada can't be warm right now lolQuote:
Originally Posted by STEvil
Maybe it was flicking to a higher boost level and causing instability, now it's fixed and unable to exceed the max verified stable?Quote:
Originally Posted by nuno_p
Could be that, yes.Quote:
Originally Posted by CryptiK
The boost cap feature is very nice indeed. :)
Good job.
*crazynuts
i unlocked my BIOS the GALAXY 680 SOC
with this settings
# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.
#
Preserve_Original_Checksum = 0
# Fan settings
Fan_Min = 40
Fan_Max = 100
# Board power settings
Max_Power_Target = 200
# Max Boost Frequency. Uncomment this if you want to change the
# maximum frequency your card will boost to.
Max_Boost_Freq = 1320 ----------------------------------> with this setting it boosts to 1306
Max_Boost_Freq = 1333 ----------------------------------> with this setting it boosts to 1333
# WARNNING:
# The following are valid voltages. I suggest you
# use these values rather than coming up with your
# own. 1212500 is the max and it is normally hard limited.
# If you go over the max and your board is hard limited
# you may actually get a much lower voltage than you
# expect.
#
Voltage = 1212500
# Voltage = 1200000
# Voltage = 1187500
# Voltage = 1175000
# Voltage = 1162500
# Voltage = 1150000
do i need to put 1321 for ex ? as i tried before with other bios and i was exact at 1320, also when i check KBG GALAXY.ROM says 1320,5 but does not boost to that only 1306
*edit i tried
1327 and boosts 1333 LOADS 1,244 max
1326 and boosts 1306 and shows on KBG info 1319,5 LOADS 1,238 MAX
weird huh ?
I think is correct because the settings for the boost clocks seem to be in ~27mhz increments. When you input a value for this in KGB it will round to the nearest valid frequency.
nvm ............
I re checked all again and clocks go like thisQuote:
Originally Posted by CrazyNutz
1288
1293
1306
1319 ---> this i cannot cap whatever i do
1332
...
at least on my card, it doesnt matter im just reporting back
cheers and thanks
Sergio
pd. for those searching the best tool to test stability on cards go FAR CRY 3 at ULTRA settings MSSA 4 - 1920x1080 and it will crap out in some minutes---
I thought it was in 13 MHz increments? As sergio put above (his first number 1288 is a typo) it should be: 1202/1215/1228/1241/1254/1267/1280/1293/1306 and I would have though from there 1319/1332/1345/1358 etc
yes its 13 increments Cryp i can confirm thatQuote:
Originally Posted by CryptiK
Ok yes its 13 or 13.5, In the bios its * 2 thats why i was thinking 27
This is a list of valid frequencies that I have coded in KGB
771.0
784.0
797.0
810.5
823.5
836.5
849.5
862.5
875.5
888.5
901.5
915.0
928.0
941.0
954.0
967.0
980.0
993.0
1006.0
1019.5
1032.5
1045.5
1058.5
1071.5
1084.5
1097.5
1110.5
1124.0
1137.0
1150.0
1163.0
1176.0
1189.0
1202.0
1215.0
1228.5
1241.5
1254.5
1267.5
1280.5
1293.5
1306.5
1319.5
1333.0
1346.0
1359.0
1372.0
1385.0
1398.0
1411.0
1424.0
@andressergio: That is very strange that you can not get 1319. Perhaps I'll code the value as 1319 instead of 1319.5 in KGB. Maybe the card rounds up and .5 is pushing it over to the next
valid frequency.
I ran KGB .5 some time ago and it seems to be working well. Am I supposed to run it again with KGB 0.6?
thx mate :up:Quote:
Originally Posted by CrazyNutz
If it ain't broke don't fix it:p:Quote:
Originally Posted by anuraj1
If I keep the GPU's at about 65c or less then they will game/bench at that easily. I can only manage that with a single GPU at a time and several fans pointed at it. In SLI things get HOT..Quote:
Originally Posted by CryptiK
.6 did something weird. My cards were stuck at 700mhz for most games, then crashed right as BF3 loaded, couldnt tell if clock speeds ever made it over 700mhz..
Does anyome have a new bios file for the MSI 660 ti cards with uefi gop enabled?
I am looking for this bios :-)
Post your original bios so i can check it out. Also post your kgb.cfgQuote:
Originally Posted by STEvil
Thanks
Ok I got the Uefi Bios for the MSI Power Edition 660 ti Card now and Flashed it on my Gigabyte Windforce 600 ti.
Works fine.
I am using the Kepler Bios Editor V1.1 now.
Interesting fact ist that both Bios use a "power level" of 39 as max value. 39 on the gigabyte is 1241,50 Mhz, while on the MSI it is 1228,50 Mhz. This doesn't go any higher even if I increase the Power Target more. 39 is the absolute max for both Cards. I wonder why the power levels 40-45 up to the max Boost Speed 1320/1306 are never used. Still you can edit each power level to you comfort, but why are the max levels never used? I will probably go ahead and edit Level 39 to 45 to my max stable Speed at 1,150 Volts, which seems to be about 1260 Mhz, and I guess I am fine forever...
http://extreme.pcgameshardware.de/at...60-650-msi.png
http://extreme.pcgameshardware.de/at...0-gigabyte.png
Hi CrazyNuts,
I notice that commenting out the max power target and fan speeds has no effect, it will still modify the bios to 150 and fan speeds 30/100. I'm only trying to modify the voltage from default 1150000 to 1162500. Using kgb .6.
Same with commenting out the voltages. Changes to 1.1875 anyway.
Quote:
Originally Posted by aamar
Ok i'll fix that.Quote:
Originally Posted by CryptiK
@crazynuts
things i discover i want to share with you the creator of this great tool
1) if i cap to 1320,5 i only get max boost 1293 and the funny thing is that only 1,23 LOAD max mostly 1,28, but if i cap to 1333 i get 1,245 LOAD
2) as i told you above i been trying all day to cap exact to 1293 and theres no go i tried all values
so far tool works great but maybe values maybe revised
the good thing of this is that i can play at 1293 / +700 all day at full load of this frecuencies at less volts before it runt 1,245 not 1,2 to 1,23 depends on the boost
cheers !
Sergio
Try this one with 1320: https://www.dropbox.com/s/d6dimgnx8cxvlca/kgb_0.6.1.zipQuote:
Originally Posted by andressergio
Hm, 0.6.1 is giving me a maximum power target of 114 on my MSI PE.
Maybe I'm doing something wrong but my card STILL wont go over 100% power target even at stock.
BIOS start found 0400
BIOS end found fbff
Checksum: Good! a3
Model: GTX 660Ti Device ID: 1183
Found power offsets 7cec
Found fan offsets 7d50
Found voltage offsets 71cc
Found max boost offsets 6b65
Fan Speed Range: Min = 30 Max = 100
Power:
Power Target: 175000
Max Power Target: 200000 (114%)
Max Boost:
1306.5 Mhz
Voltage Table:
1150000
1150000
11500000
1150000
1150000
11500000
BIOS: https://dl.dropbox.com/u/64327738/co...4-dcu2orig.romQuote:
Originally Posted by CrazyNutz
CFG:
# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.
#
Preserve_Original_Checksum = 0
# Fan settings
Fan_Min = 30
Fan_Max = 100
# Board power settings
Max_Power_Target = 150
# Max Boost Frequency. Uncomment this if you want to change the
# maximum frequency your card will boost to.
Max_Boost_Freq = 1306
# WARNNING:
# The following are valid voltages. I suggest you
# use these values rather than coming up with your
# own. 1212500 is the max and it is normally hard limited.
# If you go over the max and your board is hard limited
# you may actually get a much lower voltage than you
# expect.
#
# Voltage = 1212500
# Voltage = 1200000
Voltage = 1187500
# Voltage = 1175000
# Voltage = 1162500
# Voltage = 1150000
I'm trying to use kgb to flash my Lightnings to 1400 max boost. When I follow your instructions the file ends up as Max Boost: 1202.0 Mhz
Is this a value I can ignore or is this stuck at 1206 for lightnings? I'll admit it, I'm a bit of a noob.
great work :clap: now its caped to 1320 load 1,24+ :)Quote:
Originally Posted by CrazyNutz
see
http://i.imgur.com/xZuzc.jpg
thanks a bunch !!!
Sergio
why 1400 unless you increase volts it will fail to do 1400Quote:
Originally Posted by Voodoo Hoodoo
try new kgb 6.01 works as a charm
cheers !!!
Sergio
Quote:
Originally Posted by ovard
this are my settings using KGB 6.01
# EXPERIMENTAL: This Setting makes the checksum calculate to
# the same value it originally was by manipulating an unused
# section of the bois. This may be needed for the new style
# UEFI vbios. Set this to 1 if you want to preserve the orig
# checksum. Set to 0 for the previous behavior of re-calculating
# the checksum. NOTE: if you're not having driver detection
# problems leave this at 0.
#
Preserve_Original_Checksum = 0
# Fan settings
Fan_Min = 40
Fan_Max = 100
# Board power settings
Max_Power_Target = 300
# Max Boost Frequency. Uncomment this if you want to change the
# maximum frequency your card will boost to.
Max_Boost_Freq = 1306
# WARNNING:
# The following are valid voltages. I suggest you
# use these values rather than coming up with your
# own. 1212500 is the max and it is normally hard limited.
# If you go over the max and your board is hard limited
# you may actually get a much lower voltage than you
# expect.
#
Voltage = 1212500
# Voltage = 1200000
# Voltage = 1187500
# Voltage = 1175000
# Voltage = 1162500
# Voltage = 1150000
KGB looks to be playing nice with your bios. I suspect your card may not be fully stable at 1306, the driver may be detecting errors.Quote:
Originally Posted by STEvil
Can you try: Max_Boost_Freq = 1293
Lets see how this works out.
Will be memory OC via BIOS there? Mine is factory overclocked to 6200.
you can always OC memory with MSI afterburner etc, point is if there will be unlocked volts on mem i guess that was your question right ?Quote:
Originally Posted by GreatLamer
You can go a fair way past stock on stock voltage, depends on the card too. 6200 is +50 and many cards can do up to +500. I have found the hex string for mem freq if Mr Nutz needs it.
Yeah man send me the offset for mem, and the bios file that the offsets you found match up to. I'll add it to KGB. ThanksQuote:
Originally Posted by CryptiK
is mem volts anywhere like gpu volts Cryp ?Quote:
Originally Posted by CryptiK
It's very unlikely.Quote:
Originally Posted by andressergio
Tested up to 1359 with no problems using previous versionQuote:
Originally Posted by CrazyNutz
Gigabyte GTX 680 SO, ventilator set 0-100% with KGB. Gigabyte OC Guru 2 installed. Now the card stops all the five ventilators below 25 C, 324 Mhz. Is this good? Ventilators start around 30 C, 2 of 5, and during game all the 5 operates "properly".
I think this huge copper cooler in 3 slots depth enough to keep the card cool in lowest performance.
But maybe somebody have other or better experiences?
And thanks forward for memory oc.
My plan after found stable/safe OC-s burn to bios, after I will uninstall OC software... any thoughts on that?
for ex my card has its own software XtremeTuner that shows till +40mv increase that you can give to mem, but MSI afterburner doesnt show it unless i flash a MSI bios to the card, so i guess in my BIOS maybe it is somewhereQuote:
Originally Posted by CrazyNutz
btw heres mine GALAXY GTX680 SOC 2GB ORIGINAL not touched ROM
http://www.2shared.com/file/lSBeOULP/GK104.html
if you want to play with it there it is
cheers and thanks !
Sergio
Thanks but I increased voltage via AB 2.2.3 after flashing the unlocked LN2 BIOS on both my Lightnings and my new OC is:Quote:
Originally Posted by andressergio
Core: 1424
Mem: 7204
Kombuster claims 1.21 V but I think is closer to 1.31. Mem is +100Mv.
Max temp is 47 Celsius with 99ish% load in Kombuster 2.5.
Will try to break 21k 3D11 (P).
Ok thanks i'll take a look.Quote:
Originally Posted by andressergio
thx to you :up:Quote:
Originally Posted by CrazyNutz
Here you go man, hex string for mem freq in the msi lightning 680 bios:
http://i886.photobucket.com/albums/a...ps21172e16.png
Mem freq in the above example I have set to 48 4F (1956 Mhz) and appears in 2 places, offset 6E40 columns 6 & 7 and offsets 6E70 and 6E80 columns 0F and 00
DL the bios here: http://www.techpowerup.com/vgabios/1...48.120625.html
In an evga BIOS I looked at I found it at offset 6DA0 columns 7 & 8 and 6DE0 00 & 01. Stock freq is BC 4B so look for that if you look in stock mem freq BIOS. Hope that helps :) Any questions just let me know.
Thank you CrazyNutz for such a gift we all need it. :up: Excellent job :clap:
But I have some problems. I don't know why am I getting two diffrent bios readings after unlocking my original GTX680 bios (it should be 80.04.00.0F (P2002-0000), but it says 80.04.00.0F (INVALID). Maybe 'cause there is not enough space in BIOS Version NVIDIA Inspector. Is there anyone having the same problem or nobody noticed it yet.
http://img11.imageshack.us/img11/5837/gpuzbios.jpg
Second problem is that I can't change Max Boost Freq in .CFG file. I stuck on 1202MHz and I have no idea why.
Everything else seems OK, no problems during unlocking and flashing and it works fine, except this one.
Here is my bios: https://www.rapidshare.com/#myrs_filemanager/file/0
If anyone is in the mood for mod, I'd be glad to see it.
Thanks in advance. :)
1. That's your checksum that says invalid in parentheses. The 80.04.00.0F is the bios version. In the KGB config file change preserve checksum to = 1
2. Max boost issue - did you take the hash (#) away from the boost option the re-save? If you leave it commented out it wont apply.
CryptiK, thx a lot! :up: You shot in the center of bull's eye. Man, it's working, hell yeah! :yepp:Quote:
Originally Posted by CryptiK
i used the = 1 option to preserve checksum and still says INVALID seems not working on my cards :(Quote:
Originally Posted by CryptiK
http://i.imgur.com/IXLVt.jpg
Did the bios you started with and modified with KGB have a valid checksum before you modified it? I have tried it and it works preserving the checksum of the original bios. You made some with the old version of KGB and used one of those or made one with the new version before you selected preserve checksum = 1 then they will have invalid checksums. Start with the one I made you, it has a valid checksum.
No problem :up:Quote:
Originally Posted by hazy81
i started from the original backup with latest version of KGB and modded cfg and no go
Thanks man, but still stuck at 99-100% power target. This is really frustrating since it seems that I have a great card.
Any further help would be greatly appreciated, maybe I am missing something? Do I need a special driver or whatnot?
Send me your original bios so i can take a look. ThanksQuote:
Originally Posted by andressergio
thanks CrazyN i already posted for you hereQuote:
Originally Posted by CrazyNutz
http://www.xtremesystems.org/forums/...nlocker/page10
http://www.2shared.com/file/lSBeOULP/GK104.html
cheers !!!
Sergio
I'm confused now, because you said it was working for you, but now its not? Is it only not working after you used preserve_original_checksum=1 ? if so then use preserve_original_checksum=0Quote:
Originally Posted by andressergio
if you were not having a problem before do not use preserve_original_checksum=1
Hi,Quote:
Originally Posted by ovard
I have the exact same problem (locked to 100% power target)
It seems to just be a problem on msi power edition cards 660ti and 670.
I have read about people on the 670 fixing it with a bios flash but I don't think there is a bios available for the 660ti yet but Crazy said he might include an option for tdp adjustment in a future edition of kgb which might fix the issue.
Yes this is a known issue with PE cards. I plans to work this out.Quote:
Originally Posted by ginnnnny
no no theres a missunderstandingQuote:
Originally Posted by CrazyNutz
remember i had the turbo issue you modified to 1320 instead of 1320,5 that was on older version ? that works perfect now, but checksum never worked for me that is missing to be perfect nothing more
second i sent my bios for you to investigate (if you want) if mem volts can be added or touched on anyway as my card allows it as the MSI lighthing does but Cryptik found the memory lines but not to add volts
if you read from the begining its all here
http://www.xtremesystems.org/forums/...nlocker/page10
Thanks
Sergio
I have been wondering whether or not it's just the card giving off the wrong reading.Quote:
Originally Posted by CrazyNutz
I think that maybe when it says 100% it is actually using 120% but I don't have anyway to test.
When my drivers crash from overclocking my card drops down to around 80% power target until I reboot msi afterburner.
example my msi 660ti can score these points on 3dmark11:
9000 points at 80% power target
10000 points at 100% power target
http://www.3dmark.com/3dm11/5433791
Would those scores even be possible if it was really only at 100% power target?
There's 2 ways to give you more overclocking headroom concerning board power. There's the 100% board power target and the max board power target. Now if 132% is not enough, and these cards suck power like mad when you crank the voltage and clocks, what's being done here is increasing the max board power target so you can move the slider to 150% for example.
This is for reference boards:
Reference board 100% board power = 170w
Reference board max board power = 225w
(225/170)*100 = 132%
If the board power is adjusted to 255w:
(255/170)*100 = 150%
So then you can slide the slider to 150% allowing the card to pull 250w.
This still means you need to adjust with software the power slider to push the % higher. I wanted to do away with software other than for monitoring so what I did using a hex editor was change the power rating that 100% board power correlated to. Mine's now set at 270w instead of the default 225 (it's a lightning card so has higher ratings) which means I can leave the slider at 100% and TDP is re-targetted to 270w. It's my preference to do it this way but it's just a difference approach for the same end result.
I'm not sure how CrazyNuts is going to approach it, he knows much more about this stuff than me, but this may possibly be a way around the issue if the max board power can't be easily adjusted.
Hi Guys.
Got a Gainward GTX PHantom 4GB and successfully unlocked bios with this Mod and all is fine although card isn't the best overclocker though managed an extra 40Mhz on GPU which took it to 1241Mhz boost stable, however when card hits 73 degrees it throttles straight back down to 1150 which is a huge drop compared to before it was unlocked which only dropped in smaller increments so essentially without the unlock I could get a better GPU clock.
Is there anyway of reducing the throttling by smaller increments to try and maintian a better over all clock speed?
I know this has been mentioned before just wondering if there's a remedy for it.
Thanks
73 is just over the first throttle point, there's probably something going on but have you made a custom fan profile to keep it under 70 if possible?
Yes, followed a few guides in setting correct fan curve. Ambient temperatures are quite warm where I live and when your playing something like BF3 temperatures hover around 75c which isn't to bad, don't seem to have such a steep throttling with stock bios.
Heard a couple others experiencing this problem after KGB modd.
Thanks for reply
Quote:
Originally Posted by CryptiK
Hi CryptikQuote:
Originally Posted by CryptiK
We can move the slider to 150% but it has no affect its just the same as having it at 100%.
Fingers crossed Crazy will fix it for us :)
stock bios may have had lower voltage, dual109
does your case have good airflow?
It's a Antec 900 v2, don't think it's the best honestly but don't think I can keep this baby under 70 irregardless, unless I go with water.
75 degrees is sweetspot for this cooler under heavy load. (BF3, Crysis2, etc)
Yeah I think the voltage might be the culprit.Quote:
Originally Posted by STEvil
Other then trying to keep it cool can the bios be modded to throttle to lower voltage therefore not impacting on clocks as much like stock bios.
Quote:
Originally Posted by dual110
If you use the 1.2v bios the card will still boost to 1.212v but only drop back to 1.2v when throttled.
Thanks Ginnnnny,Quote:
Originally Posted by ginnnnny
Does the latest version of the KGB modd allow me to change my max boost? Yeah last time I just used the default but I believe you can set values in the CFG file, does this include the max boost?
Thanks
Yes I put max boost -13 because I was over boostingQuote:
Originally Posted by dual109
I put voltage to 1.200000
on 1.187500 bios I was getting throttled to 1050
on 1.200000 bios I'm now getting throttled to 1200
These bios below will all boost to 1.212v and get you the same max clock.
1.187500 throttles to 1.187500
1.200000 throttles to 1.200000
Ok, any possibility of providing me with an example of what the CFG file should look like to get1.200000 max boost before I apply modd to default bios.
thanks
Quote:
Originally Posted by ginnnnny
Hey dual I had to edit my post because I made a mistake.
I thought I was on 1.212v bios and changed to 1.2v bios but I was originally on 1.1875 bios and then changed to 1.2v.
But either way changing to 1.2v has stopped me throttling so bad so I would try that :)
1.1875 bios got me 10000 3dmark11
1.2v bios got me 10100 3dmark11
http://www.3dmark.com/3dm11/5582713
As for cfg file I would ask one of others I'm a noob :)
Ginnnnny,
Fantastic worked a gem, set my power in the CFG file to 1.200000 and it no longer throttles at all which is what I was after and now can reduce the severity of my fan profile so its a bit quiter, being playing crysis 2 for last two hours rock stable at 1241. Prior to changing the power once it hit 73c it would throttle to 1150, I tested to see if it would throttle when it hit 80 degrees and it didn't so didn't go any further for obvious reasons.
Pretty hot down where I live so difficult to keep GPU under 70 degrees however I do need to look at my cooling as I've sold my 7970 which pumped the hot air straight out back of case as opposed to the Gainward GTX680 Phantom which leaves air in case.
Once again thanks for help.
Cheers
Quote:
Originally Posted by ginnnnny
Hi all.
Using version .05 on the GTX 690 i was getting between 1202 and 1215 on each gpu.
What you think i should set it to CrazyNuts?
Is it possible the 690 could go over 1250 mhz or even 1300mhz?
I remember seeing some reviewers cherry picked cards going over 1250 at the time of release.
Hey nutz, you might be able to help me out :D I'm getting infinitely annoyed that I can't mod the vBIOS on my 7950 as I want to so I've started looking at the vBIOS on my card in a attempt to try and figure out what is where (I might take this a step further and start developing a new Radeon vBIOS mod tool - but we'll see. The encryption is strong.) Problem is I'm a mainboard BIOS / UEFI modder so all of my tools except a basic hex editor only work on those, just wondering if you could tell me what tools you used to look and the vBIOSes of these kepler cards :up:
Hex editor is the tool, followed by a lot of exhausting research :) Once you know some info about the structure of the bios (from your research) then you pretty much have to make your own tools if they are not readily available.Quote:
Originally Posted by Ket
My approach is to document every default setting on a card (i.e. clocks, voltage, fan, etc..) and then try to find the values in the bios with the hex editor. If you have some of this info about your card i can try to find the values for you.
Well, I'm trying to keep things as simple as possible right now so mainly I started looking for the 3 primary things people would want;
GPU Voltage
Memory Voltage
Clock speeds
I started by looking at the 2 different vBIOS versions that came with the Vapor-X I have as differences would be minimal, but so far I haven't really spent much time on it, mainly because my eyes aren't that great so they get screwed up easily if I have to look at things like lots of code in a hex editor so progress will be slow. Thats why I was asking if they was any specific tools, now I know there isn't, progress will probably take even longer due to my decidedly dodgy eyesight.
I'm trying to change the fan minimum for a Gigabyte GTX 660 OC with this BIOS. I am hitting a problem with the original checksum. It calculates a different checksum every time I run the program. The CFG file is untouched. All I want to do is change the fan miminum, while keeping everything else stock. Thanks!
Code:d:\Temp\A>kgb.exe Gigabyte.GTX660.2048.120824.rom
Kepler Golden BIOS Tool (Beta v0.6.1) by CrazyNutz @ XtremeSystems
WARNING: Use at your own risk!
BIOS start found 0600
BIOS end found 2c60b
Checksum: Bad (In ROM: 00 Calculated: 06)
Oh no, Bad checksum.
d:\Temp\A>kgb.exe Gigabyte.GTX660.2048.120824.rom
Kepler Golden BIOS Tool (Beta v0.6.1) by CrazyNutz @ XtremeSystems
WARNING: Use at your own risk!
BIOS start found 0600
BIOS end found 2c60b
Checksum: Bad (In ROM: 00 Calculated: 56)
Oh no, Bad checksum.
d:\Temp\A>kgb.exe Gigabyte.GTX660.2048.120824.rom
Kepler Golden BIOS Tool (Beta v0.6.1) by CrazyNutz @ XtremeSystems
WARNING: Use at your own risk!
BIOS start found 0600
BIOS end found 2c60b
Checksum: Bad (In ROM: 00 Calculated: 88)
Oh no, Bad checksum.
ok it looks like KGB is finding the wrong BIOS end. I look at this bios and get a fix in.Quote:
Originally Posted by bkraptor
So after flashing my Gigabyte now I have to underclock the Core because if I leave everything "stock" when I test with Kombustor I was getting over 1220Mhz and the card was freezing almost immediately.
I am currently testing -117Mhz Core to keep the max speed showing in Kombustor at 1111Mhz (which is the max boost for the highest OCed gigabyte card) and that is working fine so far.
I have not touched voltages at all.
So is this to be expected?
Doesn't seem right - every card is different though. My 660 Ti (reference) had no issues with the default 1200 and is fine all the way up to 1306 with 1.212v.
I would revert back to the stock bios if I was you.
With the stock Bios it was even worst. The Gigabyte seems to have about 200Mhz boost. Right now after doing the 670 overclock guide it got to a max speed of 1163 and + 400mhz on the ram which scored me a 8800s 3Dmark11 and is stable playing all games I tried with 3D vision on. Not the greatest card by any means but I am not getting much more out of it.
Basically when doing the OC, I never got any issues with the speed dropping at any time, always a flat line at 1163 yet trying to squeeze anything else from it will just freeze Heaven benchmark. Oh well :)
I wonder how the evga I got coming in will do with it. I am not sure how card with different speeds and boosts etc work together.
Anyways, that is where it ended for me.
When you unlock it your card will boost higher. This is normal, and it is common for it to boost past the stable point. You'll either need to up the voltage or cap the boost by setting Max_Boost_Freq = 1111Quote:
Originally Posted by shaolin95
I was able to get a max stable OC of 1163 I was just surprised that is as high as my card can go compared to so many that go to 1200 and 1300 but that is the luck of the draw as always with OCing I guess :)
If it work on the 660, will it work on the 650TI ? they are the same GPU but with some cut SP.
My stock EVGA 680 SC is boosting to ~1220 which is unstable. I'm just trying to lower the clocks and reflash (hate RMAs). So I grabbed my rom with gpu-z and edited it with this KGB and also with Kepler Bios Editor 1.1:
http://rog.asus.com/forum/showthread...0-650&p=213818
But they don't detect each other's BOOST changes (ie, edit with one, check with the other). What's up with that? [Fan %, power, and voltage do correlate between the two.] I'm a little nervous to flash this $500 card. I've flashed 260 and 560 cards without problems, but they weren't worth as much either. KGB shows 1280.5 as max boost from the rom dump!!! Kepler Bios Editor shows 1150 which is what EVGA claims. I think there's a custom index table you need to take into account possibly? KeplerBE shows me a big table with 1280.5 as the highest value.
(In the mean time, I use software solution -25 core, +200 mem with MSI AB. And I read this whole thread, whew!!!)
kepler bios editors sucks the big one. kgb or vdt are the way to go if you dont know how to use a hex editor.
Quote:
Originally Posted by xorbe
There is a difference between Boost Clock, and Max Boost.
The one that you see in Kepler Bios Editor 1.1 is "Boost Clock". This will not help you in your situation. Because as you see the cards will boost higher than this setting anyhow.
The one that you see in KGB is "Max Boost". This is the maximum that your card will boost to (unless you add + to your clocks in software) This will help your situation since your card is boosting too high 1220mhz and its not stable, if your set the max boost in KGB to say 1180 your card will not boost to 1220 anymore.
Ah thanks. Yeah, since day one of Kepler, I never understood why everyone's cards boost higher than what the spec suggests. There are low-spec cards that boost higher than high-spec cards. It seems like a bad way to market hardware ...Quote:
Originally Posted by CrazyNutz
Thanks again. Though somehow I overlooked that my MSI AB power slider was jacked up (everything else was +0), so I get to re-test now, before taking the reflash plunge.Quote:
Originally Posted by CrazyNutz
edit: Ugh, it crashed in 2 minutes with power limit 100%. Crash was logged at 94% power utilized, 98% gpu usage, 78C, 1.15v, 57% fan, 1202 core, 60 fps. I'll have to play with the core drop required over the next week before flashing.
Looking at a stock asus rom, I think I might use kepler bios editor to just shift the entire boost table on my evga to be less aggressive. That's the root problem really -- the table is much more aggressive than a stock rom.
When you say KGB "unlocks", does it do something beyond changing the max voltage and max power level?
That should work fine for you.Quote:
Originally Posted by xorbe
No just voltage, power, fan, and max boostQuote:
Originally Posted by xorbe
Thanks for looking into this issue. Until a fix is released, can you share the details on how to manually edit the binary file in order to change the minimum fan speed?Quote:
Originally Posted by CrazyNutz
This isn't working for my GTX 660. When I run the program to look at my BIOS it says:
Any ideas what I can try? This card is a EVGA 660 SC (the Best Buy exclusive one with higher clocks)Code:Kepler Golden BIOS Tool (Beta v0.6.1) by CrazyNutz @ XtremeSystems
WARNING: Use at your own risk!
BIOS start found 0600
BIOS end found f5ff
Checksum: Good! fe
Model: GTX 660 Device ID: 11C0
Found power offsets 832f
Found fan offsets 83a9
Found voltage offsets 7649
Hmm? Could not find max boost offsets.
Just wondering does anyone understand and can control the link between voltage and boost tables?
I want to be able to choose the voltage I want (any voltage) and choose the boost I want (any boost). If I run 1.175v I cannot boost over 1228 with 1 card, and 1254 with the other. I will use a hex editor if needed that's how I've modded my base freq, mem freq and 100% board power target but I want exact control over voltage vs boost.
I wanted to ask this exact same question! It's got to be a combination of the 45-entry boost table, the current sense resistor reading, some hidden "asic quality" type of value, and the max boost value.Quote:
Originally Posted by CryptiK
Update: before 1.15/1215 (and crashing), after flash 1.15/1176 -- success, thanks to your info, CrazyNutz! Used KGB to also change the max power to 150% and max voltage value to 1.187, and kepler bios editor to change the boost table and memory speed to 3348. It seems stable now at "stock", or with extra power slider (1.187/1189) ... though that's kinda useless for my particular card, lol. Important thing is that it doesn't crash at default settings.
Crazy nuts - have you found or seen the relationship between the voltage levels and the allowed boost levels? Setting 11875v and up no matter how you do it (hex editor/this tool etc) causes the card to boost to the max boost level. However at stock (11500v) it boost to a predefined level which is different between cards and seemingly tied into asic quality or some measure of chip quality. One of my cards boosts to 1228 the other to 1254 for example. I want to know how to control what the cards boost to at voltages less than 11875v (ie: 115000, 1.16250 and 1.17500v). Can this be done and if so how?
I believe this is being referred to as 'kepler boost' value and is the value added to the advertised boost frequecny which results in an individual cards actual boost frequency.
Any help would be appreciated.
Crazy ? Any support for GTX650TI ?Quote:
Originally Posted by Boulard83
Can someone PLEASE go over the steps for a eVGA 690? I tried to mod the bios file a few months back but to no avail, im pretty sure u HAVE to moddify BOTH bios files from GPU 1 and 2 and simply using GPU-Z will only give you 1 bios for gpu 0. Using nvflash i can get both GPU 0 and GPU 1 bios files but then id like a quick run down on what to do as i dont wanna brick a thousand dollar card. Thanks to anyone with some input!!
Having some issues with my bios from cards, 660 ftw sig 2 having issues attaching my bios rom's on here. ill post them when i figure out how hehe
send me your bios, i'll check it outQuote:
Originally Posted by Boulard83