GTX480M overclocking

Hey everyone,
I was wondering if anyone found a way to successfully raise the voltage through BIOS flash on this GPU? Right now I can only overclock via software and hit a wall pretty fast since I can't increase the voltage.
Thanks.

GTX480M INFO
-If modding your GTX480M BIOS, do not dump your BIOS with version 0.4.9 or 0.5.0 of GPU-z, use version 0.4.8 otherwise nibitor gives a red warning for rom integrity.

Attached here is a stock, not modified GTX480M BIOS, should you (or I) ever lose our backups.

 

96TDP X940 + Overvolted 480m = melt.

You could try dumping the BIOS through GPU-Z and editing it.

 

I did dump it, nibitor just can't open the voltage table.

 

Will Nibitor read it if you use the GTX 465 strings?

 

Does 480M really needs overclocking as of now?
Good for snowy winter so that family can gather around and enjoy the heat from vents.

 

Sometimes I wish that's just true. I can turn off the heater and save money on bills.

 

PM me your GTX 480M BIOS and I will overvolt it for you.

 

You sure that computer doesn't cost you more on electric bills?

 

Maybe, but have you ever tried watching pron or playing video games on an electrical furnace? At least the computer allows you to do something useful with the energy before it gets converted to heat

 

Are you using nibitor or are you going hardcore on the vBIOS registry ?

 

Man I fap to my heat system...

 

Only if you can manage to oc it to stock GTX 465 clocks it could be worth its money... But heat and power draw will probably kill your laptop.

 

All of you have been posting in the Clevo forum, for long enough to know that there are no heat issues with the GTX 480M.

Come on now.

 

I'd agree, but I was referring to the whole laptop. He is running the CPU with a 96W TDP. CPU cooling is already weak on the W880CU if he drastically overclocks the GTX 480M, he could run into the 100°C ceiling with the CPU.

But it would definitely be nice to know how far the GTX 480M can be pushed.

 

How can i change the voltages of the 480M? NiBiTor?! What voltages are available?

 

Not at all actually. Hardly feels the difference.

 

I see where you're coming from. Thanks for the clarification.

I'd really like to see the 480M hit within 5% of GTX 465 clocks, but that probably won't happen with an OC'd 940XM.

 

<.< so is no one going to post their results of overclocking?

 

OC 525/1400

2*GTX480M stock is enough for gaming i think
compare with my roommate's i5 mobile+gt335M

 

DUDE YOU HAVE A HELL LOTS OF AWESOME GAMES, im jealous T_T
not to mention the ones behind the MSI AfterBurn, when the hell will my laptop arrive T________T

 

I wouldn't mind cutting down my CPU OC for GPU OC, I'll let you guys know around Christmas what I'm able to achieve.

 

H-Emmanuel. Here is the edited GTX 480M BIOS. The only change that I have made to it is the max level voltage from 0.85V to 0.9V. As we discussed in our PM's, because I do not have the GTX 480M to test with, I (strongly) don't recommend flashing this, but I'll leave that decision up to you.

I PM'd you the password to unzip it. The file will be removed in 48 hours or upon confirmation of download.

 

Why not let us all take a look at the file, Soviet? Or is that not allowed?

 

Did you edit the vbios with a hex editor or did you use nibitor?

Does nibitor support the 480m?

 

NiBiTor should be able to do it.

Here's a guide btw:

http://forums.guru3d.com/showthread.php?t=313989

http://67.90.82.13/forums/showpost.php?p=4624281&postcount=410 (thanks Speedy)

I haven't tried this yet since my 480M(D900F) always has red integrity on NiBiTor even on a fresh dump. I will not be responsible if someone bricks their card.

 

We all know about NiBitor and it doesn't read the GTX480M properly. Some people apparently found some work arounds, probably using hex editors. Comparing my original stock BIOS to the modded one, there are just a few differences in the hex code, I'm trying to understand what they correspond to, I'd like to figure out the logic behind that. Because that BIOS is dangerous, it is not made available to everyone, PM Soviet Sunrise if you're interested.

 

I am using a similar hex reader and editor that I also use for editing my Phoenix BIOS to disable HT, albeit I have not modified any of my system BIOS anymore as I don't mind having HT now; the newest release of my PS2 emulator solved the problem of running crummy for me due to HT.

There should not be "a few" differences in the BIOS code, just two, and they correspond to the voltage value for the max level. NiBiTor is essentially a hex editor with a (intermediate level) user friendly UI, period. You can hand edit the BIOS straight through NiBiTor alone, but one cannot do so if the BIOS isn't readable. That's where you use another hex editor to parse the code into a readable hexadecimal source base that humans and non-CS users can understand; I'm an engineer and not a programmer so I am reliant on this.

I've deleted the PM's from users wanting a guide or the modified GTX 480M itself. I am not going to publish a guide or anymore copies of the BIOS without testing it at my own expense. I chose H-Emmanuel because: one he was desperate to overclock his GPU, and two he had the foundation knowledge of "old school" overclocking evident through his history on OCN (you may know me on a different username over there, H-Emmanuel). I understand that the responsibility is on you guys' shoulders, but the real truth is that the author also feels that burden if it does not go smoothly as well. For example, do you guys remember when some idiot thought of the "pressure mod" for the MR 5870 to remedy the poor heatsink performance on the W8x0CU? Do you guys remember how many cards and heatsink mounts that were ruined during that excursion before it was no longer recommended by it's victims? This happened on a larger scale in the Alienware forum as well, with larger consequences such as warped/cracked boards and chipped dies. And this is not including the anonymous lurkers that have also attempted it. That's too much time, effort, and money down the drain because some retard posted an untested idea on a public forum. Resellers also strongly agree with me because it keeps the number of RMA's down from people trying to make a claim on hardware or software and lie about the cause of the damage when it's their own goddamn fault. It's morally unethical, but some end-users are sleezy enough to take advantage of the fact that good resellers want to keep their customers so what more can they do but go along with it. Though there is more to this such as the underwriters taking the brunt of the losses but that's going deeper into business theory, but you get the idea. I can go on and on with the examples that happened in the NBR forums alone. This is why I always conduct closed/private tests, with select few participants under contract of oath, of anything that I work on whether it be my cooling mods or with software editing for weeks and even months before I compile my work and publish it for field/public testing. It helps minimize damage and minimize the spread of the method or software or whatnot into the public as well as give some maturity and reliability to the project. Progress is slow, but it would be done properly. Some people flaunt and motion for open source and that science is meant for the people, but put yourselves in the shoes of those that hold the intellectual property that has the high potential of damaging tangible property, in this case graphics cards. Just like applying for a CCW, one needs to be qualified to. And I can rightfully say this as I am a patent holder that has been receiving royalties for my designs that I co-created at university; we tested our designs for months before licensing it off to a contractor to produce.

Considering the fact that the GTX 480M is a very expensive card, someone bricking one due to an unstable BIOS that I published is not something I want on my shoulders. It hurts my technical credibility for future works, and my humanity for costing a user thousands of kilometers away an expensive GPU that they paid for with their own earned cash. And believe me, I've had a few misfires before with some of my customers where I felt obligated to replace their components out of my own pocket, in which I have, despite having no agreed responsibility for the losses; fortunately they weren't expensive. That's just the kind of person I am: an ethical engineer with OCD for modding anything that is moddable.

 

God, you have a lot of time on your hands to write such elaborate posts.

As far as I know you are the only one who is able to hex edit a vBIOS on this forum. So that says a lot about you and your skills, something which you have already proven on countless times. But this is not about praise, this is about what you are doing and have done for the users of this forum. And people should understand that they should be happy with what they got. You could have refused to do any of these from the very beginning and mind your own business. Regardless, your contribution is invaluable and I respect that!

As for the rest... overclocking and flashing your vBIOS, especially for a laptop video card, requires a lot of care. I have went through the experience of damaging video cards through OC or turning them into bricks. Laptop video cards are much more sensitive to heat than desktop ones.

 

VERY IMPORTANT
This is to everyone who has a GTX480M. I am currently helping the developer of NiBitor to support the GTX480M. I currently do not have my laptop with me so I need someone to double check voltages for me.
I'm pretty sure the heavy 3D voltage is 0.85v, then I need to know the two others (mild use & idle). Do that using GPU-z and monitor the voltage according to your clocks: gaming clocks = heavy 3D, a bit downclocked = mild load, and downclocked all the way = on battery.
I would really appreciate if someone could report back with this info, even better, with screenshots of the "sensor" tab of GPU-z for heavy/mild/idle. GPU-z makes it easy to see with the history graph the variation of voltage according to clocks etc. I need someone who ABSOLUTELY understands how voltage/clocks & performance levels work because I won't be able to double check and I don't want to feed "mvktech" with wrong information.

Those voltages will help the developer to know where to start from and provide official support for the card in the future.

 

To be honest I can care less about the GTX 480M and it's community. Allow me to rephrase, I can care less about the GTX 4x0M community. I'm only doing this because I'm bored from the extra time I have on my hands now; I am done with finals and I pretty much graduated from university, and just sitting on my hands until I walk on stage in a few months in May (Magna C*m Laude baby!). But maybe it's because it irritates my eyes seeing users in this thread (and other GTX 480M users that should be included in this thread) begging for another way to push their already power constrained systems to score higher numbers on a game that everyone knows and loves, 3DMark. The metaphorical image I have in my mind is a bunch of little chicks in a birds nest with Jen-Hsun Huang teasing them with MXM cards made of earthworm intestines. Darwinism is heavy in the tech world and sometimes it is necessary to climb the ladder to the top and pull the ladder up with you to save the potential sheep. With that said, I will take your advice, Blacky, as it has helped me see the Whitey: I will just wait for Mavke to release NiBiTor again to properly read the GTX 4x0M BIOS so I don't have to fiddle around with two hex editors when only one is needed to get the job done. It saves me time and effort that I can better use to own 12 year olds halfway across the country in Counter Strike.

 

I had some success after a few hours of frustration.





It tried to go higher and artifacts started coming out. I just wanted to see how much I can push the GPU. I went back to stock clock right after the Furmark test.

 

Was that on stock voltage?

 

What were the temps and after what time ?

 

76°C (80°C max) after 21 mins. So there is still some room for overclocking if you overvolt the card...

 

What is your room temperature? And did you use any notebook cooler?

 

It was cold outside so i turned up the heater in my room to 65F. I did use the cooler when I was running Furmark.

@H-Emmanuel: Yes, it is on stock voltage.

I'll do another test today without the cooler and I'm gonna make the room temp to 72F.

 

Patrck_744, can you please get the screenshots I asked for a few posts back?
It's very important!

 

nice stuff patrck!

 

GPU is OVERCLOCKED.

Readings when making this post


Minimums [Before Furmark]


Average [After Furmark]


Max Readings [After Furmark]


While Browsing


I didn't use the cooler this time and room temperature was turned to 72F on my heater.

During Benchmark


Screenshot > Photoshop [Furmark Running]


After Furmark was turned off


After 5+ Mins

 

Good stuff Patrck you still have a little headroom to over volt maybe using the cooler just wait until nibitor support voltages on the 480

 

wow, so he never got that fully working yet speedy? the unlocked 480m voltage tables.

 

Hey Johnksss, nope still no support with NiBitor. The reason is the developer doesn't have a GTX480M to test it on, I just emailed him the different voltages blacky provided.

 

Soviet Sunrise, not me !!!! What the hell.

 

No you can only change clocks and all i have is the bios i can't even test

 

Mavke, not me !!!! What the hell.

 

Wooops, lol, I meant Patrick. It was early this morning lol for me while receiving a bunch of birthday calls Pardon me lol, credits go to Patrck_744.

 

really, mine was on the 6th of this month

yes, so i see..no worries...i hear you might be picking up a dual 460m machine...lol

yep, because you only get on time to mess up.... these newer computers for some strange reason..do not have a crysis recovery option in play. mess the graphics card up and that's all she wrote..the computer wont work for a crysis recovery option (bios or vbios). (speculation of coarse)

 

Is it possible to decrease the 3D voltage to ~0,835V?
...to find out the minimum voltage @ stock GPU clock
...to reduce the temperature and power consumption?!

Currently, with NiBiTor it is impossible to modify voltage at 480M BIOS.

 

What can tell us this chip about possible voltage mods?

 

the only way would be to power it up and see what changes buy touching it with a multimeter or getting the data sheet on it - which is virtually impossible to get.