[MOVED] Hacking NVidia Cards into their Professional Counterparts

[xfabx]

Hi to all,
Why don't mod a 660Ti in to K4200 ?
They have the same number of core 1344, TMUs 112, and maybe we can unlock the bus width at 256*

GPU Name       Resistor 0 / 3th byte   Resistor 1 / 3th byte    Resistor 2 / 8-f 4th byte   Resistor 3 / 0-7 4th byte
GTX 660 ti                 none                                 25k                                none                                    20k
GTX 770                         none                                 25k                                none                                    25k
quadro k5000                 40k                                none                                15k                                   none
Quadro K4200*              40k                                None                                none                                     25k           

GTX 660Ti   Device Id 1183
GTX 770     Device Id 1184
Q. K5000    Device Id 11BA
Q. K4200    Device Id 11BA
   

*maybe

Any answers?
Thank's!!

[Mr. Scram]

I have an old GTS450 that is pretty much gathering dust, but this might be an interesting project.

[InfinityMod]

Are there any news according the GTX690 yet?

Thank's a lot!

[gnif]

I have the card sitting here on my bench ready to mess around with but have had too little time to get started on it I am sorry. I am currently in the middle of another time critical project that has to come first.

[Brumby]

Are there any news according the GTX690 yet?

Thank's a lot!

When there is something to report, it will find its way here.  These exercises don't pay the bills, so those priorities have to come first.

Just be patient.

[gwidullo]

Hello'
I bought a used asus GTX670-DC2-2GD5 graphic card, and this card is identified as tesla k10.
This card is dead? Or there's something else to do with it, so I can play it?
https://www.asus.com/Graphics-Cards/GTX670DC22GD5/gallery/
Edit:
Silence, so I understand that I was cheated and this card is scraps,
As for watching the internet on the microsoft driver it's too much electricity needs, and anything else in this state is not suitable

[gwidullo]

hello,
I turned on the cooler and something was soldering on that card
The marked resistor should be original?

[gwidullo]

My measurements are a bit strange:


R - 20M ?  - is probably damaged
and R - 10K ? - I'm not sure it should be 5K ?

Please help me, I have to give this card to the service to solder correct resistors

Edit:
ok I already know how it should be

I replaced 20M a good 5k resistor, and still is tesla k1.
So the problem is not in the configuration of resistors just unless the card is dead 

[robjvan]

I have the same issue - found a used GTX780M (10DE 119F) that identifies as a Grid K2 (10DE 11BF).  Resistors do read a bit wierd, but not in the range that would give these readings.

  Of course, I managed to install the Geforce driver through inf modding, but I can't access the Geforce control panel and that's a serious PITA keeping me from assigning dGPU for certain games, can't use Geforce Experience, and I'm fairly sure PhysX isn't working right either.  It's a damn shame, and I'm not really sure how to sort it out so if you manage to figure ANYTHING out, please don't hesitate to share. 

[gnif]

Sorry to hear that mate, seems like someone has done the dodgy on you. NVidia removed GRID support from the consumer drivers, likely due to this hack. You can get the GRID drivers to install but the card refuses to function properly as a general GPU after the mod. You have three options:

1) Use it as a GRID in a passthrough device
2) Have someone reverse the alteration, this thread is the place for information, look through it for references to your card.
3) Demand a refund! IMO this is the course I would take, claim it as faulty. It was sold as a GTX780M but has is faulting and identifying as the wrong device.

[gnif]

My measurements are a bit strange:


R - 20M ?  - is probably damaged
and R - 10K ? - I'm not sure it should be 5K ?

Please help me, I have to give this card to the service to solder correct resistors

Edit:
ok I already know how it should be

I replaced 20M a good 5k resistor, and still is tesla k1.
So the problem is not in the configuration of resistors just unless the card is dead 

Did you measure the resistors in or out of circuit? The only way to make the card report as a Tesla is to mess with the resistors.

[gwidullo]

Did you measure the resistors in or out of circuit?

in,
but now the card is dead,
The fans are on, the led lights are green, but the card is invisible
I run the system on an integrated graphics card.

how to make the simplest diagnostics what's broken?
- fuses PGF1, PGF2 and PMF1 are ok
- worries me that PGCE4, PGCE5, PGCE6, PGCE11, PGCE16, PGCE17 on both legs (+-) have a short to ground

[grifos]

Hi,
I got the exact same card: GTX670-DC2-2GD5
Removed R2 and R4 today
So now the card is: none none none none

The card is successfuly recognized as GRID K2. I could use it with xenserver 7.2 in a windows 10 guest with the latest driver from nvidia (NVIDIA-GRID-vGPU-kepler-XenServer-7.1-367.122-370.16).

Thanks to this thread

Regards.

[grifos]

Hi, i have a question,
Did anyone manage to use the nvidai high definition audio driver with a hardmoded gtx? Does the driver even exist?
Because right now i'm pleased to use my gtx as a vGPU, but can't pass audio through HDMI

Small addition to my previous post, removing R2 and R4 works just fine, but sometime at host boot time, the card is recognized as Grid IceCube =). Someone in a previous post mentioned this issue with another card, so it's not new, but in case it happens, the vm guest won't manage to load the driver properly (even if the hypervisor tells you the right card is passed through).
You just have to reboot the host to get the right id at boot time, not much of a hassle than trying to find the correct value to stabilize the card at boot time xD

Regards

[gnif]

Did you measure the resistors in or out of circuit?

in,
but now the card is dead,

You have very likely killed the GPU, it is a 1.2v device and the voltage output by your DMM for measurement is high enough to damage the GPU.

[gwidullo]

You have very likely killed the GPU, it is a 1.2v device and the voltage output by your DMM for measurement is high enough to damage the GPU.

Is this card only for trash?

[gnif]

You have very likely killed the GPU, it is a 1.2v device and the voltage output by your DMM for measurement is high enough to damage the GPU.

Is this card only for trash?

Without testing I can not say for certain, but it is quite likely.

[gwidullo]

Without testing I can not say for certain, but it is quite likely.

What to check to make sure?
Plz help me 

[thunderbolt]

i habe 8x 780 6GB modified to tesla k40st air cooled and 7x watercooled 780 6GB Tesla K40st ... anyone wants to buy some ?

send me a mail. air cooled 200€, watercooled 270€.

all are working perfect. all with 6GB

send me a PM.

[gnif]

i habe 8x 780 6GB modified to tesla k40st air cooled and 7x watercooled 780 6GB Tesla K40st ... anyone wants to buy some ?

send me a mail. air cooled 200€, watercooled 270€.

all are working perfect. all with 6GB

send me a PM.

Not the place to post this, please post it in the for sale section of the forums.

[Zucca]

Hi There!

I just got a Quadro K5200 from Ebay. it loooks like this:



Do you think if I manage to solder properly (I know it is BGA so bla bla...) those missing 4 1MB chips and hack the ID... I will then have a K6000?

Should I try it?

EDIT: I think there is also some work to do at the power supply part... bummer.

 

[Mr. Scram]

That little auxiliary board looks interesting. What chip is on there? I can't quite read it in the picture.

[gnif]

I doubt it, its missing more then just the RAM, an entire power phase is missing, likely for the extra RAM.

[mechanerd]

I doubt it, its missing more then just the RAM, an entire power phase is missing, likely for the extra RAM.

How about the eprom put on the board is non standard?

First of all gnif, you are the boss awesome for finding this hack.

I had a gtx 960 chinese fake card sent to me from a friend who bout it, then got a refund.
it's really a GTS450 gf106 192 core, 783 Mhz clocked card with a funky bios eprom that nvflash doesn't read or write to.
gpu-z can read the card, but the bios save fails.
I tried scanning the eprom with RWeverything to no avail.

The device id is 10de 1401, but it needs to be hard modded.

Per page 10 of the thread this guy did the gts450 to quadro2000 mod.
I just want to set the darn resistors back to gts 450 and use this card a mining card or simple GTS for a desktop.

Initial values are:
index   meaning   resistance
1   3 byte value D   none
2   3 byte value C   35k
3   4 byte values 8-f   none
4   4 byte values 0-7   25k

device / resistors table

device name   R1   R2   R3   R4
gts 450   none   35k   none   25k
Quadro 2000   35k   none   5k   none

now the fun part is locating the exact resistor location. I have a good idea, but I think it's counterintuitive to be jumping a blank spot with a resistor when it could be used for some other function on the card. I have steady hands and a sharp eye for a repair like this.
However, this 450 ripoff card that was flooded on Ebay look nothing like the reference card or any of the stock images on google.

 

I am tracing from pin 3 of the supposed eprom to the nearby resistors. I think I might be able to determine the values for the bits.  I see the list of first two nibbles from page 1 of the thread as:
"
What NVidia has done is changed the way that it handles the straps, instead of just pulling the straps high or low to control the switches as they did previously, they are now read as analogue values. The scheme is as follows:

When pulling high:

5K   = 8
10K = 9
15K = A
20K = B
25K = C
30K = D
35K = E
40K = F

When pulling low I expect this to be the same, but for 7 - 0, but I did not test this as the device ID I was targeting is >= 8.

There are two tiny SMD resistors on the board, one for each nibble of the PCI Device ID byte. Originally the GTX 690 has a device id of 0x1188, so to become a Quadro K5000 this has to be changed to 0x11BA, which equates to 20K and 15K resistors. If you wanted to change it to a Tesla K10, you would want to change it to 0x118F, which equates to 5K and 40K resistors.

"
----
But what about 7-0 ?

Thanks and regards..
BTW I tested the PXE boot roms for Intel NICs back in the day of early gigabit.. Intel changed the way they allowed the device ID to be changed, but for a while there were a few server cards that were desktop cards out there..

[theleakydiode]

Is this why ebay is full of fake nvidia cards now? Because the Chinese have caught onto this thread?