GTX 880M vbios

Hi there, finally I have bought a new MSI with GTX 880M and I heard that it throttles even in stock clocks, not even talking about reaching it's boost clocks. So, I would like to get a new vbios to correct the issue if it is still happening, I don't plan to overlock the card while "The Witcher 3" is still being cooked, just need stock clocks and boost working properly.

All in all, where can I find vbios for that card, info about the procedure, and... any advice?

I hope temps won't rise to 90s cause I won't even get a minimal overlock... Anyway, I hope my cooler master notepal u3 will keep temps a few ºC lower....

 

A proper paste job, the aid of cooler master and well placed thermal pads will help you play without issues.

I have a 780m but I use it overclocked to the point it's slightly faster than an 880m and I usually game in the 80s temps. Of course I keep my fan profile with me and use up to 80% fan speed if necessary

If you are worried about temps out of the box and don't feel like tinkering with anything whatsoever, just use turbo fan when gaming and monitor temps. That should be enough cooling to keep your temps on hold. As for vbios, tinkering with it etc, that's not an easy task unless you know what you are doing. You can extract the vbios from the GPU as well as download them from MSI webpage and then manually modify the hex values to the proper numbers you seek for and attempt to reflash your vbios.

 

Well, never tried with vbios before, but as computer engineer it shouldn't be so hard to me, editing a few hex is not a problem if I know which of them should I touch.

I don't believe 880m can overlock more than the 780m, perhaps a little but not a big jump from it. Which values have you used with your card?

 

They have an edited version at the tech inferno forums for download, 5 posts on their forum or a donation is required to grab it.

 

Haha modifying hex values is not hard. The trick is to know the actual structure of the vbios. I had the same idea to simply make my own vbios but I never went with it because I didn't invest time in learning the structure of the vbios itself. I might look into it now, since its easier.... you have 880m and 780m. Identical hardware with different core clocks, hardware ID and bunch of other values. Use both vbioses to find the fields you need to change.

 

The structure of each is actually a little different as I understand it.

 

Just as an FYI I have used the kepler bios tool and am running at 1006 core and 2700 ram all the time and in game there is no dip or fluctuation in speed.

 

here you can get the best modified vBIOS for your GTX880: NVIDIA Kepler VBIOS mods - Overclocking Editions, modified clocks, voltage tweaks

Nvidia 800m series:

i´m using also the OC Edition by slv7 for my GTX770M and it works perfectly.

i tryed the OC Edition for the GTX780M by a friend (MSI GT60), it works also but only with the newest Bios (51X) and only in legacy Mode. When i turned UEFI on, then the mashine freeze @ Biospostscreen.

 

Some values are easy to modify, but you have to revise the checksum value in the last bit to allow the NVFLASH software to accept the ROM.
Svet from MSI forum is very specialized in this area.

 

1006mhz? isn't that like... 10 mhz more than stock boost? As for memory, you can probably go higher. I even used to play with higher memory overcock. I tend to keep my core at 980 if only because thats the +135mhz I can use from afterburner. After using unlocked vbios, my best stable OC was 1020mhz but I saw no point in using my GPU all the time at such clocks, specially since I had to use modded inf to install drivers etc etc.

Yeah, I know. I have worked with other firmware but not with actual vbios from a GPU. svet and others are very experienced but also have access to way more resources than me (including a lack of problem/issue if bricking a GPU to then fix it later haha). Maybe when I change jobs and have a bit more free time I can spend some time modding my own vbios and testing

 

Yes it is but I would never get my boost speed the way the vbios was and now it's stable at 1006 core no fluctuation and it's what I was going for. Thanks on mem I will try and boost it a bit more and see. It's a nice GPU for sure. Note sure about the drivers I have mine setup like that as a moded vbios and I install the drivers as is with no problems.

 

Oh that makes sense. I never had trouble with boost in my case. On stock it always works up to 850mhz, but if I OC it reaches 980 and remains there, as far as I can tell haha.

On memory, I even teste +500mhz at some point, but it wasn't very stable. I tend to use +300mhz when I need a boost in performance, but I have gamed at +400mhz easily before.

 

1500 ish is a pretty normal limit for the vram.

 

What was the benchmark score you had achieved through your highest overclocks?

 

Back then, around 8600+ 3dmark11 with GPU scores of 9100+ and more. But since then, both drivers and 3dmark itself has been updated, so it should be higher now. Also the main benefit for such clocks, specially memory, came with the Xtreme scores, because on P it was more affected by core clocks.

 

Well the P benchmark is run at 1280x720 so the memory gets a holiday lol.