Is it possible to overcolt a gtx 285m past 1.03v?

Nibitor can't do it. Anyone know if it is possible to overvolt to 1.05 or 1.06v?

 

I found a 280m bios to compare VID's:

So "VID 0" is 1.05v on the 280m. Is there any way of figuring out what VID 0 is on the 285m? VID 1 is obviously 1.03v

The tables seem very similar and there is an equal number of entries. So there should be a possibility of undervolting the card below 0.85v as well.

Just need to figure out those VID values. Any help appreciated!


Oh, and 280m is on the left, 285m on the right.

 

Anyone?

 

110 views. Page four bump.

 

If you dont have a pre-programmed 1.05v option, its unlikely that the voltage supply system will go that high.

You can try changing the voltage value yourself to try, but its most likely it will just clip to 1.03v.

 

I know that changing the label won't work, but I'm trying to find out what voltage VID 0 has.

Edit: Or a different vBios that will let me go higher than 1.03v

 

upload me your vbios, I'll give you an overvolted one.
But from the images it seems very unlikely that a 1.05v or 1.06v could work because whatever you write on 00VID, usually doesn't affect voltage IC.

PS. 280M vbios has 1.05v option if I don't mistake.. but the OCability seems the same if not higher @1.03 on 285..they're pretty same card BTW

 

Here is the bios i'm currently using. It's overvolted to 1.03v.

Is it dangeroud trying to set the VID to 0 and flashing or is worst case scenario blindflashing back?

 

almost 100% no risk of blindflash
The worst scenario: You'll not get more clock (card will not get any hotter)
Here it is. try it without worries

 

Thanks alot! I will try it out right away

Did you just alter the voltage tables in Nibitor? If so, are you certain VID 0 is 1.05?

Also, do you know the values for the other VID's as well (05 06 07)? If this works, hopefully there is a way to undervolt the card to 0.7 aswell

 

Well it certainly worked! After flashing i ran furmark for 10 minutes and the temperatures rose to 87 degrees as opposed to 81 degrees

I also ran vantage to see if I could overclock higher than before. At 1.03v the highest I could go was 700/1700/1100. Now I ran 700/1750/1100 with no problems as well as 710/1800/1100 and finally 720/1800/1100 with the GPU maxing at 79 degrees

I'm tempted to push it further though... So far I've increased the GPU score from 5674 to 6559, a 15% increase.

My initial goal was keeping the gaming clocks @ 680/1700/1075, but I might bump them up after testing for stability in BC2.

Thanks oile, + rep

 

I'm very happy for you that it worked!! You've a little beast of card of course..I'm envious of those freq

However, here it is the same vbios as before but undervolted 2D @ 0.8v 3D and throttle @ 0.85v (it's not possible to go below that)
Try it, but if you've problems loading the desktop, then revert to the previous one

 

Thanks! How did you unlock this?

Final limit for vantage was 730/1825/1100 - 6595 GPU score

I played BC2 for ~2 hours @ 700/1750/1100 with no problems. When i did the error test in OCCT, however, it froze instantly It won't go error free @ 680/1700/1050 even.

 

Well, I have tried figuring out what you have done, reading the voltage tables for the different bioses in nibitor.

It seems as though you have changed the labels from the VID?

In the original bios, VID 01 equals 1.03V, but in the first bios you uploaded you changed the label for VID 01 to 1V. I do not think this will work. In the latest bios it seems you have only changed the label of VID 04 from 0.85 to 0.8 when infact VID 04 according to the original bios equals 0.9. I can also see that you have added VID 03 to the bioses, buut it does not have a listing in the original bios. I still believe that VID 00 is higher than 1.03V, but unless you can tell me how you know which voltage VID 00 and VID 03, and how you changed this, it seems as though you have only changed the labels of the VID's and thus not the voltage itself

Still, I am very happy and thankfull that VID 00 worked. If my reasoning above is incorrect I apologize