Overclock.net - An Overclocking Community - Reply to Topic

Thread: NVidia Maxwell/Kepler BIOS editing thread. GTX 2XX to 9XX now supported. Reply to Thread
Title:
Message:

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
02-24-2019 06:39 AM
Cyclops
Quote: Originally Posted by tonyt08 View Post
hey, i was wondering if you could mod my gigabyte gt 730 card for an OC competition with my friends. I want power/voltage unlocked if possible, and the core to be able to go above 900 mhz. I have also attached GPU-z images. Thanks in advance

http://gpuz.techpowerup.com/19/02/24/2kd.png

https://ufile.io/wmpku
That's a Fermi based card and none of my programs can edit that BIOS.
02-24-2019 01:59 AM
tonyt08
GT 730 (GF108) Gigabyte DDR3 Mod

hey, i was wondering if you could mod my gigabyte gt 730 card for an OC competition with my friends. I want power/voltage unlocked if possible, and the core to be able to go above 900 mhz. I have also attached GPU-z images. Thanks in advance

http://gpuz.techpowerup.com/19/02/24/2kd.png

https://ufile.io/wmpku
02-17-2019 08:10 AM
Cyclops
Quote: Originally Posted by Xizorkun View Post
This is a Quadro k4200 gk104 bios. its basically the same as a gtx 670 but clocked down and more ram. Is there a way to unlock overclocking or just do the voltage/tdp mods?
https://www.overclock.net/forum/atta...1&d=1550419770

Quote: Originally Posted by Xizorkun View Post
this is a gtx 670 bios, could you mode voltage/tdp and increase the max fan curve to 100%. Thanks!
https://www.overclock.net/forum/atta...1&d=1550419770
02-17-2019 07:27 AM
Xizorkun this is a gtx 670 bios, could you mode voltage/tdp and increase the max fan curve to 100%. Thanks!
02-17-2019 07:09 AM
Xizorkun
Quadro Bios tweeks

This is a Quadro k4200 gk104 bios. its basically the same as a gtx 670 but clocked down and more ram. Is there a way to unlock overclocking or just do the voltage/tdp mods?
02-14-2019 12:37 PM
davidm71
Quote: Originally Posted by sorance2000 View Post
Can you undervolt msi gtx960 gaming 2g, or unlock +0 Core Voltage for -0... for being able to undervolt the gpu? In MSI Afterburner you cannot do that, but + increments with mV.
Thanks!
Not sure if Afterburner will go in reverse with voltage control or not but you could open up your firmware in Maxwell Bios Tool and adjust the voltage table directly nudging down the voltage like 10-25 mv for each boost state or just set a constant voltage for each boost state over a certain frequency.

Of course this could be risky and introduce instability which is why I would recommend you just cap your voltage levels on the high end of the table only.
02-14-2019 12:13 PM
Cyclops
Quote: Originally Posted by sorance2000 View Post
Can you undervolt msi gtx960 gaming 2g, or unlock +0 Core Voltage for -0... for being able to undervolt the gpu? In MSI Afterburner you cannot do that, but + increments with mV.
Thanks!
Not sure if it will work the way you want as I've never tried undervolting Maxwell.
02-14-2019 07:04 AM
sorance2000 Can you undervolt msi gtx960 gaming 2g, or unlock +0 Core Voltage for -0... for being able to undervolt the gpu? In MSI Afterburner you cannot do that, but + increments with mV.
Thanks!
01-26-2019 01:56 PM
davidm71 Was able to get 1506/4000 stable at 1.2 v as far as I can tell. Tested it with various 3D benchmarks then customized my rom to 'Bake-in' 1506 as the default TDP Boost clock entry. Unfortunately for some reason while gaming it Boosted down to 1341!

I couldn't understand why it would Boost down or throttle as I raised my TDP values in MBT but it was using clock state #61 instead of #74 which I had set to 1506. So I had to shift down the values in the Boost table and shift up the voltage table to match.

Now it will auto Boost to 1506 and throttle down normally but I kind of cheated here it feels like.

If anyone knows why please comment. Attached my mod rom for anyone to take a peak at..

Thanks.



http://www.mediafire.com/file/hpi01d2iiddc8ic/1506.zip
01-25-2019 12:49 PM
davidm71
Quote: Originally Posted by flexy123 View Post
*** Tutorial: Advanced BIOS Editing with Maxwell Bios Tweaker ***

Tweaking The Voltage Properly: Getting The Voltages Right All Across the Voltage Table

I am posting this since I haven't seen the "proper" way to do this yet. It took me a long time to figure this out.

One problem with MBT and the normal way of BIOS editing by setting the max stable clock at the last position in the voltage table 74 is that down-boosting for some odd reason will not function properly, at least not in the upper clock ranges, such as 74 down to 63. It seems that Kepler & Maxwell still want or expect their max CLK in the voltage table entry where the card is boosting to at default.

If you use the ENTIRE voltage table for your tweak as is often suggested, when down-boosting it basically "skips" the upper CLKs and (in simple words)...jumps way too low to the next entry with a lower voltage which is already in the 60s CLK range. What I wanted is to make a BIOS that not only holds an OC at desired voltage, but ALSO can boost down properly so it decreases the volts when it would need to. (OF COURSE, the card won't even throttle in a game since the main goal of our BIOS is of course keeping a stable overclock WITHOUT throttling. But I wanted BOTH, an overclock bios and proper throttling and proper voltages all across the CLKS, say if I force the card by setting lower power target. Here are my findings.)

* Requirement

You should have an idea of your max stable core clock and what voltage it needs. For testing I am using Heaven Benchmark on Ultra/Extreme, Firestrike, 3DMark06, 3DMark11.

Don't assume you need the max. voltage your card (VRM) can give to get your overclock. My card is an EVGA SC ACX2.0 which is limited to 1.212V. However, for my desired OC of 1506 I can go as low as 1.187V and this with a rather poor ASIC of 70%. When the voltage is tested (see above) there is no reason to choose higher since you will only use more heat, power, the card will throttle earlier etc..etc.

For my example I am using my desired OC of 1506 and my max. voltage of 1.187V.

* Here comes what is different to other Bios modding tuts:

Test your card at stock and stock bios and establish what its default max. boost clock is. For this you can use GPUZ, the render test, or any other test WHERE YOU KNOW IT DOESN'T THROTTLE. You want to know the max MHZ your card boosts at and at what voltage.

* In my case (and for many cards), they will likely boost anywhere from CLK 62 to CLK 70. A card with ASIC 70% for example will go to CLK 63, a card with ASIC 72% will go to CLK64.

* Look at your default max boost, say it's 1367. You look this up in MBT in the Boost Table and see 1367 is CLK 63.

What we do now, we're actually shifting our Boost Table in MBT so that our CLK 63 becomes our maximum, desired boost clock/overclock, like so:



In the "Common" Tab in MBT you set 1506.5 as Boost Clock and in the "Boost States" tab you specify your 1506.5 as well (see pic). (With most cards 1506.5 is actually already the maximum in the table, but it's possible your max. stable OC is less...or more. Then of course you use your number. I use my 1505.5 here since I tested this freq.




Switch to the "Voltage Table" tab in MBT. Now it's where it's getting interesting.

Since we shifted our entire boost table 11 or more notches "up", we need to adjust our voltage table.

You can ignore all the lower CLKs, the shifted boost clocks only affect clocks 35 and downwards.

Since our max. stable clock is at CLK63 (and not at 74 since we want to have the card "proper" boosting down if it would need to) we set everything from CLK 64 and down to 74 to a "crazy high" value like 1600. This, and the limit we specified earlier in the "Boost States" tab makes sure the card will never go beyond CLK 63.




Getting the voltage table right (from our max CLK with our max overclock down "upwards" upto CLK 35 sure is a thing I could write a book about. I must have tested here for weeks. But I found the "easiest" way is actually the best way to do it:

* FIRST, make sure that all values in the voltage table that are higher than your max. desired voltage ARE changed to your max. desired voltage.
In your voltage table, there will be many sliders on the right going up to 1281.3 or higher even. Change all those to 1187.5
(This is important since when the values exceed your max. voltage the card won't use the entry)

(Setting your max voltage BELOW your max.possible voltage also has the advantage that your card won't ever throttle due to voltage limit! As I mentioned earlier, it has several benefits NOT using your absolute max. voltage and is usually not even needed!)

Now, we're already ignoring all those at the bottom which I set to 1.600V since we don't use anything beyond CLK63.

Now you adjust the sliders on the LEFT, the so called "entry voltages".

CLK 63, your last valid entry in the table I set to 1.187V - 1.187V (both values the same).

Now you go upwards on the left and while you go up, with each step you decrease the left slider by ONE NOTCH.


This is why I said "easy" since this is easier than figuring out some elaborate curve. You simply go up the table on the left, one value less with each step and you do this from 64 upwards to and including CLK35. (Everything above ignore again since we only shifted boost CLKS which go from 35-74)

(I found only one little notch better than a steeper curve since with a steeper curve you might end up supplying CLKs at the lower end not enough voltage. Just going up and one notch less each time seems to be just right. As said, this is a topic where one could write a book about )

For the sliders on the right, note that the last 18 or so up from 63 are all at the maximum 1.187V.

(You can also look at your stock bios and imagine that we just shifted the entire boost table 11 notches up and can look at the default bios. In my case, in the stock bios, the last 18 entries are LARGER than 1.187V. And now we shifted it so entry 74 has become 63, entry 73 has become 62..and so forth. This so you understand sort-of what I did).

*** Last but not least, of course we adjusted our power limits in the BIOS as well. I don't go into detail there since this has been covered many times elsewhere.

If all went right, you now have a bios that will have your max. OC stable, without throttling....but it CAN throttle down properly if you want to. Say, you can test this running a Benchmark and then run the Benchmark at 100% , 90%, 80%, 70% Power Target etc. and you will see how it will decrease volts/clocks..and most importantly...IT WILL BE STABLE also at the lower clocks. With other ways to mod BIOS, it will not decrease voltages properly at higher clocks. I tested many times with max boost clock at CLK74, but was not satisfied how it downclocked without reducing volts)
Hi,

I know this is an old card tech and just about obsolete but having fun learning how to overclock gpu such as Maxwell. Anyhow Flexy was wondering if you have a bios with this mod you can share so I can study and learn from it? Also if I understand correctly this mod sets your card to boost at the highest stable overclock at desired voltage without throttle and will downclock once no longer under load?

Thanks


Also if my default boost clock is 1304 according to GPU-Z but it boosts all the way up to 1430mhz on its own at 1212mv which one do I choose for this guide?
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off