NVIDIA BIOS Editor?

Nelly · 20 Jan 2014 at 14:01

What is the best/easiest way to change the Default Clocks?

NiBiTor any good or anything better, do they work?

Thinking about buying a Gigabyte GeForce GTX 780Ti WindForce 3x OC then modifying the BIOS so it runs like a GHZ Edition.

Gregster · 20 Jan 2014 at 14:18

nibitor was always good but I just got it again to check and doesn't appear to work for me. Might be ok for you though.

Nelly · 20 Jan 2014 at 14:25

Gregster said:
nibitor was always good but I just got it again to check and doesn't appear to work for me. Might be ok for you though.

Cheers I found this >> http://www.overclock.net/t/1424569/kepler-bios-editing-flashing-tool

I noticed skyn3t already modded the bios for the above card so it runs at a 1045 base clock >> http://www.overclock.net/t/1438886/official-nvidia-gtx-780-ti-owners-club

Skyn3t @ overclock.net said:
vBios GTX 780 Ti
Version 80.80.30.00.80 - 80.80.30.00.01
Base core clock 1045Mhz
Disabled boost
3d voltage adjustable
1.212v unlocked
Fan Idle 20%
Fan bumped to 100%
Default power target 100% 300w by 200% slide 600w >>Evga Precision X
Default power target 100% 300w by 300% slide 600w>> Msi AfterBurner

Gregster · 20 Jan 2014 at 14:28

Yer. Skyn3t is a legend in my eyes and I swear by his BIOS's. I am using one of his for my Titan, just because I like the clocks to be static and not bossting (I know what I am getting fps wise at what clocks I set).

Nelly · 20 Jan 2014 at 16:02

Gregster said:
Yer. Skyn3t is a legend in my eyes and I swear by his BIOS's. I am using one of his for my Titan, just because I like the clocks to be static and not boosting (I know what I am getting fps wise at what clocks I set).

This is going to sound totally dippy, the disabled boost does that mean if I push the GPU Offset so Im at 1200MHz Base Clock it keeps at that, also will it still downclock with the Skyn3t BIOS for power saving?

As you can tell I've never looked into this...

Gregster · 20 Jan 2014 at 16:09

Nelly said:
This is going to sound really dippy, the disabled boost does that mean if I push the GPU Offset so Im at 1200MHz Base Clock it keeps at that, also will it still downclock with the Skyn3t BIOS?

As you can tell I've never looked into this...

Nothing dippy about something we don't know

Basically, you fire up your computer and the GPU sits at 325Mhz Core. you fire up a game and it jumps up to 1045Mhz (if you use Skynets BIOS). As soon as you stop playing, it drops down to 325Mhz again.

If you run MSI AB and add +200Mhz to the core for instance, it will sit at 325Mhz on desktop/idle and as soon as you start gaming, it will jump up to 1245Mhz (if you use Skynets BIOS) and again, when you stop playing it drops down to 325Mhz. At what ever you set the speed at, it stays there and doesn't fluctuate. I notice in loading screens/menus, it drops off but that is the only time it does.

If you are not under water, just keep an eye on temps, as I believe it also stops the heat throttling but not 100% on that.

If you use Skynets BIOS, add 3 lines to MSI AB Beta 18 and you can have up to 1.3V as well (1.325V effective with Skynets BIOS).

At the bottom of my sig is a guide to flashing and overclocking, which has some useful info in.

pgi947 · 20 Jan 2014 at 16:13

No boost means your offset is added to the 3dbase and not to boost. So 1006mhz base at +200 gives ~1200mhz static clock regardless of temps. If it were boosting the clock speeds would be all over the shop.

Use kbe or similar for bios editing, has to be a kepler tool. Though the 700 series don't have as much support as the 600 series did, hence why skynets bioses are so popular. 600 series you could change power targets, voltages, statics and boost maximums etc...a lot of this is missing for 700 cards.

Nelly · 20 Jan 2014 at 17:57

Gregster said:
Basically, you fire up your computer and the GPU sits at 325Mhz Core. you fire up a game and it jumps up to 1045Mhz (if you use Skynets BIOS). As soon as you stop playing, it drops down to 325Mhz again.

If you run MSI AB and add +200Mhz to the core for instance, it will sit at 325Mhz on desktop/idle and as soon as you start gaming, it will jump up to 1245Mhz (if you use Skynets BIOS) and again, when you stop playing it drops down to 325Mhz. At what ever you set the speed at, it stays there and doesn't fluctuate. I notice in loading screens/menus, it drops off but that is the only time it does.

If you are not under water, just keep an eye on temps, as I believe it also stops the heat throttling but not 100% on that.

If you use Skynets BIOS, add 3 lines to MSI AB Beta 18 and you can have up to 1.3V as well (1.325V effective with Skynets BIOS).

pgi947 said:

No boost means your offset is added to the 3dbase and not to boost. So 1006mhz base at +200 gives ~1200mhz static clock regardless of temps. If it were boosting the clock speeds would be all over the shop.

Use kbe or similar for bios editing, has to be a kepler tool. Though the 700 series don't have as much support as the 600 series did, hence why skynets bioses are so popular. 600 series you could change power targets, voltages, statics and boost maximums etc...a lot of this is missing for 700 cards.

Click to expand...

Thanks, I guess if using old games that don't use much power it will run at maximum clock regardless? i.e. with boost removed?

Do you know what Skyn3t uses to edit the BIOS? I'm guessing some sort of hex editor?

Basically better off using his BIOS than messing around with the risk of ballsing up the BIOS/Card.

Gregster said:
At the bottom of my sig is a guide to flashing and overclocking, which has some useful info in.

Cheers, subscribed. I'll have a look later.

Gregster · 20 Jan 2014 at 18:03

Not sure what he used Nelly and I would guess at hex editing. I would stick with his BIOS's, just because I know they work well. If you have any probs, let me know and I will try and help

pgi947 · 20 Jan 2014 at 18:06

I would guess at hex editing too.

You still get different clock states depending on load/vsync status, for example my 780's work at around 10% per card at 600 odd mhz in fifa 14 (1620p downsample) yet when high enough load is detected it fires up to the full 3d clock which for me is stock 1006mhz.

Cyber-Mav · 26 Mar 2017 at 23:57

Gregster said:
Nothing dippy about something we don't know

Basically, you fire up your computer and the GPU sits at 325Mhz Core. you fire up a game and it jumps up to 1045Mhz (if you use Skynets BIOS). As soon as you stop playing, it drops down to 325Mhz again.

If you run MSI AB and add +200Mhz to the core for instance, it will sit at 325Mhz on desktop/idle and as soon as you start gaming, it will jump up to 1245Mhz (if you use Skynets BIOS) and again, when you stop playing it drops down to 325Mhz. At what ever you set the speed at, it stays there and doesn't fluctuate. I notice in loading screens/menus, it drops off but that is the only time it does.

If you are not under water, just keep an eye on temps, as I believe it also stops the heat throttling but not 100% on that.

If you use Skynets BIOS, add 3 lines to MSI AB Beta 18 and you can have up to 1.3V as well (1.325V effective with Skynets BIOS).

At the bottom of my sig is a guide to flashing and overclocking, which has some useful info in.

Hi if you disable boost on the bios what happens if the card reaches thermal or tdp limit? Does it still start dropping back clocks and voltage?

subbytna · 27 Mar 2017 at 12:10

Holy thread revival batman!

Gregster · 27 Mar 2017 at 12:24

Cyber-Mav said:
Hi if you disable boost on the bios what happens if the card reaches thermal or tdp limit? Does it still start dropping back clocks and voltage?

Can't remember but when hitting thermal limits, it should still drop clocks. I was water cooled when running a custom BIOS, so wasn't an issue and air cooled I certainly wouldn't recommend running a custom BIOS.

Cyber-Mav · 27 Mar 2017 at 17:25

i see many people wanting to disable the boost, but why? whats the advantage of disabling boost and just running higher base clock that matches your boost clock?

Disco_P · 27 Mar 2017 at 17:44

From what i remember the tdp limit was 300W to 900W so I never got close. However i know the thermal limit did not do anything. It just kept going until the 100C mark where the failsafes kicked in and throttled it massively. So make sure that you are ready for the heat.

Reason people disabled the boost was because it would cause the clocks to fluctuate a lot depending on thermals, power, voltage and load. This made finding your max stable oc really difficult. For example my 780 was stable at 1202mhz at 1.212v with the custom bios. Under load it would always run at 1202mhz. Whereas on the stock bios it would fluctuate below, affecting performance or above, affecting stability.

Also the stock bios locked power limit to 275W which was just poop.

Cyber-Mav · 27 Mar 2017 at 19:50

Ahh. My stock bios locks tdp to 250w or can use 10percent more in oc software. However im wondering why bother to oc since even at stock it throttles even below the baseclock speed in furmark. So even if clocked higher run furmark and it clocks back down due to being tdp limited. I see people set the tdp to silly high wattages but then its risky if it pulls more power than the atx spec recommends on the pcie peg connectors.

stooeh · 27 Mar 2017 at 19:57

Don't use furmark, I'm sure the drivers throttle it regardless. I ran custom bios to give TDP more room on my 970s meaning they always boosted to the same clock.

Also worth mentioning that the BIOS had separate limits for each power source (ie the 2 6pins and PCI PEG connector for my 970s). I left the PCI slot untouched at 75W.

Cyber-Mav · 27 Mar 2017 at 21:55

yes it was throttling until I renamed the furmark exe to something else. so it pulls major power and heats up the card hotter than any game so far. but it still throttles in furmark, reason for throttling given is power limit reached. I done a test and raised power limit to 275w and saw clocks rise up in real time as I increased power limit.
will experiment more but if its tdp limited then overclocking with just make it hit the tdp limit sooner and then back down on clocks again?

Kaapstad · 27 Mar 2017 at 22:16

As said above using Furmark is pointless and can damage your GPU.

Disco_P · 27 Mar 2017 at 22:19

That's why you use a custom bios that raises the power limit. You can draw a lot more power through the PCIe connectors than they are "rated" for.