Author Topic: [MOVED] Hacking NVidia Cards into their Professional Counterparts (Read 1651950 times)

gordan · « **Reply #925 on:** March 22, 2014, 03:16:32 pm »

What specific OpenGL requirements do you have? There are only a very small number of primitives that are disabled on the GeForce cards. Also, if you are using Linux, you may find that the open source nouveau driver performs better since it isn't deliberately crippled for non-Quadro cards - it's probably worth a try.

isaiah · « **Reply #926 on:** March 23, 2014, 11:29:32 pm »

Quote from: gordan on March 22, 2014, 03:16:32 pm

What specific OpenGL requirements do you have? There are only a very small number of primitives that are disabled on the GeForce cards. Also, if you are using Linux, you may find that the open source nouveau driver performs better since it isn't deliberately crippled for non-Quadro cards - it's probably worth a try.

only maya viewport.

can it improve under linux,nouveau driver environment ?

gordan · « **Reply #927 on:** March 24, 2014, 07:29:27 am »

No idea, but it's certainly worth a try.

gotofbi · « **Reply #928 on:** March 31, 2014, 10:57:01 pm »

Hello.

I am trying to mod Galaxy GT640 to Grid K1 so I can test some vGPU (maybe at least passthrough)

I am trying to locate R1~R4

device name   R1   R2   R3   R4
GT 640   25k   none   10k   none
GTX 650   25k   none   35k   none
Quadro K600   none   40k   none   15k
GRID K1   none   40k   15k   none
K2000   none   40k   none   35K

So I should be able to find one 25k ohm and 10k ohm

I was able to locate R1 since there were only one resistor which shows 25k (and actually connected to pin6 SCLK)

But I cant find R2, R3, R4

R2 and R4 is empty so I dont know how to locate, for R3, there are like 5 candidate of R3 with 10k ohm.

Can anybody explain me details of how to locate R2, R3, and R4 with ohmmeter??

Thanks

Raim · « **Reply #929 on:** April 04, 2014, 05:57:26 pm »

Quote from: gotofbi on March 31, 2014, 10:57:01 pm

Can anybody explain me details of how to locate R2, R3, and R4 with ohmmeter??

R-s should be connected to SCLK, SI or SO , to pull up(Vc) or down(Gnd).

nmeatg · « **Reply #930 on:** April 07, 2014, 05:22:15 pm »

A while back someone asked about modding a GTX660 (GK106 based) into a K4000. I've done this on an EVGA GTX660 (part number 02G-P4-2662KR) but should be similar on other GTX660. Be careful there are some GTX660 that use the GK104 and are a different design. This mod is for GTX660 boards with an original PCI ID of 11C0 being modded to a K4000 ID of 11FA

This mod requires removing the heatsink to access the topside of the board. See pictures for resistor locations

R3H on topside of board controls the 3rd nibble. On a GTX660 it is 25K ("C"). Removing it gives "F" . On other boards some folks have reported leaving an open causes issues and a 40K resistor is needed. I didn't have that problem

R4H and R4L on the backside of the boards controls the 4th nibble. Remove upper resistor R4L (5K on GTX660 = "0") and add 15K at low resistor R4H for "A"

Reassemble heatsink before testing. With the mod the board now works in Xen GPU passthrough. It's also way faster than the real K4000

powerhouse · « **Reply #931 on:** April 08, 2014, 03:32:55 pm »

Quote from: nmeatg on April 07, 2014, 05:22:15 pm

A while back someone asked about modding a GTX660 (GK106 based) into a K4000. I've done this on an EVGA GTX660 (part number 02G-P4-2662KR) but should be similar on other GTX660. Be careful there are some GTX660 that use the GK104 and are a different design. This mod is for GTX660 boards with an original PCI ID of 11C0 being modded to a K4000 ID of 11FA

This mod requires removing the heatsink to access the topside of the board. See pictures for resistor locations

R3H on topside of board controls the 3rd nibble. On a GTX660 it is 25K ("C"). Removing it gives "F" . On other boards some folks have reported leaving an open causes issues and a 40K resistor is needed. I didn't have that problem

R4H and R4L on the backside of the boards controls the 4th nibble. Remove upper resistor R4L (5K on GTX660 = "0") and add 15K at low resistor R4H for "A"

Reassemble heatsink before testing. With the mod the board now works in Xen GPU passthrough. It's also way faster than the real K4000

Thanks for posting your instructions. I could get a EVGA GTX 660 model 02G-P4-3061-KR. Do you think that would work? I would use it for VGA passthrough, to replace my Quadro 2000.

nmeatg · « **Reply #932 on:** April 08, 2014, 10:28:43 pm »

I haven't been able to find a clear picture of the backside of the 02G-P4-3061-KR so can't be sure, but that looks like it might be a different board (which would likely mean different strap positions)

powerhouse · « **Reply #933 on:** April 09, 2014, 01:59:21 pm »

Quote from: nmeatg on April 08, 2014, 10:28:43 pm

I haven't been able to find a clear picture of the backside of the 02G-P4-3061-KR so can't be sure, but that looks like it might be a different board (which would likely mean different strap positions)

Thanks for your reply! Unfortunately I couldn't find any meaningful picture of the card. The spec sheet shows only minor differences between your card and the 3061:

Spec	02G-P4-3061-KR	02G-P4-2662-KR
Base clock:	980	1046
Boost clock:	1033	1111
Texture Fill Rate:	78.4 GT/s	83.68 GT/s

Except for the different GPU clock, it's most outstanding difference is the use of 2 ACX coolers (fans). EVGA advertises lower noise and better cooling with these fans. Any idea where to find more information or a picture?

nmeatg · « **Reply #934 on:** April 09, 2014, 06:48:39 pm »

I couldn't find a backside picture of the 02G-P4-3061-KR. Best was a 3/4 front shot at http://br.evga.com/PRODUCTS/IMAGES/GALLERY/02G-P4-3061-KR_XL_4.jpg . From that picture the board looks like it stops at 3/4 length (like my 02G-P4-2662-KR), the few component visible are in the same position (but that's very weak evidence), and the pcie holddown tab is labeled "EVGA091 Rev1.0" vs "EVGA091 Rev1.1" on my 02G-P4-2662-KR. Other specs do match

It's a gamble whether that's the same board

As for the ACX cooler - I just don't like it. It recirculates air around inside the case because the air exhausts from the sides of the board, whereas the reference cooler exhausts out the back of the chassis

nmeatg · « **Reply #935 on:** April 09, 2014, 10:10:43 pm »

And there was a question about modding an EVGA GTX760 (GK104 based). There are two slightly different board designs selling under the same part number 02G-P4-2762-KR. One was easy to mod, the other I haven't located the strap on (yet). They were bought within a few months of each other. Check the picture to see if the resistor arrangement looks the same - this is near the top heatsink mount. The other design has a unpopulated SOIC8 footprint so quite obviously different. If you have a matching card ...

I wanted to mod the GTX760 (1187) to a K520 (118A), but you can also mod to a K10 (118F). R4L and R4H control the 4th nibble of the ID. On a GTX660 upper resistor R4L is 40K ("7"), remove it and you get "F" for K10. Adding 15K at lower resistor R4H gives "A" for K520

With the mod the board works with Xen GPU passthrough

powerhouse · « **Reply #936 on:** April 10, 2014, 05:57:28 am »

I've checked some more options. I could also get the Zotac 660 or the Zotac 760. Both look like they match your photos. Here the links to the photos:

ZOTAC GeForce GTX 660 - ZT-60901-10M - http://www.zotacusa.com/geforce-gtx-660-zt-60901-10m.html

ZOTAC GeForce GTX 760 AMP! Edition - ZT-70402-10P - http://www.zotacusa.com/geforce-gtx-760-zt-70402-10p.html

I was wondering if spending the additional money (~45% more) for the 760 would really be worth it? Any thoughts on performance gains of the 760 over the 660 after modding it?

nmeatg · « **Reply #937 on:** April 11, 2014, 05:20:54 pm »

The mod doesn't alter the performance of the card. The performance difference between the EVGA GTX660 and EVGA GTX760 I have is ~12% on passmark 3D test. Be aware that the pictures may be out of date - I bought two of the GTX760 from the same place with the same part number and same pictures and got two different designs. If you're modding the GTX660 you'll need to remove the heatsink - that was simple for the reference blower, I don't have any first hand knowledge of removing the Zotac heatsink

telis79 · « **Reply #938 on:** April 12, 2014, 02:18:39 pm »

Hi, i have a KFA2 / Galaxy GTX 680 Ex Oc 4096mb. I bought it 2 days ago. I disapointed when i noticed that in 3ds max with vray RT my renders had lot of noise (no clear). I check on web and i realized that the driver of gtx doesn't work properly when the Gpu and the cuda are used for rendering. Only with Quadro k5000!

Can i please send you the photos of my card and you guide me how to modify this card to Quadro k5000? Is realy important for me this card to work properly with rendering because that is the only reason i bought it.

ps. i tried to find the resistors by my self without any knowledge . i just used a photo from this forum with a similar card (gtx680 2gb gigabyte) and tried to guess the resistors. I know you propably think i am stupid!

karakarga · « **Reply #939 on:** April 24, 2014, 09:12:13 am »

I have dual Zotac GTX670 cards with 4GB.

On one of them, I have tried the Quadro K5000 modding.

---> NO SUCCESS <---

Well as mentioned earlier, the GK104 chip has variations!

gtx680 --> GK104-400-xx
gtx670 --> GK104-325-xx (on my chip GK104-325-A2)
gtx660ti --> GK104-300-xx

Probably, chips inside laser cut! So playing with resistors did not help me.

Maybe the modding needs a GTX680 (writing GK104-400-xx)

Graphics card manufacturers may put various chip versions on their cards, there are already overclocked GTX670's, maybe on them GK104-400 chip might be present!

So, if you don't have this chip, it seems modding to K5000 is not possible!

Note: By the way, according to http://www.techpowerup.com/gpudb/565/quadro-k5000.html

The Quadro K5000 chip carved as: GK104-355-A2 so,

GTX680 --> GK104-400-xx
GTX670 --> GK104-325-xx (on my chip GK104-325-A2)
GTX660ti --> GK104-300-xx
K5000 --> GK104-355-A2 (the difference might, because of the earlier PCI-X rev.2)

And voila...

Again according to http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_690/4.html

GTX690 --> GK104-355-A2
K5000 --> GK104-355-A2

Therefore the modding might run much easily on GTX690!

Popular nVidia GPU's In Detail:

TeslaK10 --> No Picture Found!
Grid K2 --> No Picture Found!
K5000 --> GK104-355-A2
GTX690 --> GK104-355-A2
GTX770 --> GK104-425-A2
GTX680 --> GK104-400-A2
GTX670 --> GK104-325-A2
GTX660ti --> GK104-300-KD-A2
GTX760 --> GK104-225-A2
Titan --> GK110-400-A1
Titan B. --> GK110-430-B1
GTX780 --> GK110-300-A1
GTX780ti --> GK110-425-B1

RoNiNk · « **Reply #940 on:** April 24, 2014, 10:26:03 pm »

Hi all. I modified my gtx690 but it didnt work out for me. windows recognise one chip as k5000, quadro drives sucessfully installed but windows couldnt start device because device reported problem (code 43). I google this problem and tried different approaches to solve this problem but non of them worked for me. So I want do undo changes in my videocard but I dont know what resistors I should install.

gordan · « **Reply #941 on:** April 25, 2014, 04:03:28 pm »

Try an older driver - it's possible Nvidia changed the driver to more thoroughly check the card. Are you getting code 43 on both GPUs?

Many people have successfully modified 670s into K10s, K5000s and K2s. I had a 680 modified into K2 and still have a 680 modified into a K10.

I am not convinced hardware changed recently since 6xx cards haven't been made in a while.

Edit:
Let me guess - Gainward GTX690? They use a slightly different strapping arrangement. Changing the resistors for the 3rd nibble degrades the signal from the EEPROM to the point where it can't be read. That can manifest as the problem you are seeing. Convert it to Tesla K10 instead. You will still get working VGA pass through. You can find the original resistor values on a photo a few pages back. You may be able the get away with just removing the resistor for the 4th nibble, that usually results in it reading as 0xF.

ddummy · « **Reply #942 on:** April 25, 2014, 08:19:18 pm »

Hi all, I am new to Nvidia card hacking. I wanna to use my gtx780Ti on a Xeon Xen hypervisor which is using ECC ram. Is that possible to use vga passthrough on that machine after I convert the gtx780Ti to K6000? If possible, would you mind to provide a detail instruction on how to do the conversion?

gordan · « **Reply #943 on:** April 25, 2014, 08:30:55 pm »

Yes, I run such a setup. Look back a few pages for a diagram/info about converting a 780 into a Tesla K20c. You need to solder in a 33KO type 1206 resistor across two of the pins on the EEPROM.

ddummy · « **Reply #944 on:** April 25, 2014, 09:08:26 pm »

between SCLK and Vcc?

gordan · « **Reply #945 on:** April 25, 2014, 09:26:41 pm »

I believe so.

Allso · « **Reply #946 on:** April 26, 2014, 11:06:37 pm »

If I were to change my 670 to a k5000 would that allow me to see 10 bit colors in programs such as photoshop and premiere that does not use the windows API?

turdor · « **Reply #947 on:** April 29, 2014, 10:05:43 am »

Is GPU Affinity works on moded K5000, K6000 (Win7 64) ?

gordan · « **Reply #948 on:** April 29, 2014, 10:15:23 am »

The GPU affinity feature did show up as available in GPU Caps Viewer on my 680 modified to K2, but I've no idea whether it actually worked, didn't have anything to properly test it with.

NEOAethyr · « **Reply #949 on:** April 29, 2014, 04:18:25 pm »

Hi dudes, I modded my 680 lightning some time ago to the grid k2, just by popping off 2 resistors.

Worked fine back then, these days though there's newer drivers that block the ability to have the k2 to use dual link dvi timings.
It's stuck with single link timings.
There's a new bios for the k2 to fix this and I managed to get my hands on it.
I even managed to get the ram amount change from 4 gigs to 2 gigs thanks to this thread yet again

.

However I have one more obstacle, the k2 bios has no display output.
Anyone happen to know how mod this into the bios?

I've also got a 2nd card just sitting collecting dust ready to be modded.
But I don't wanna mess with it until I can get past this prob.

Latest usable driver for the modded k2 is 319.92.
320.xx and above all have the single link dvi timing problem.
Sucks because I got a 144hz monitor, if I use reduce timings I can get it around I think it was 68hz max lol.

If anyone wants the real grid k2 bios just say so.
It's actually one of 2 bios'es, since the real k2 is a dual pcb and dual bios card.
Came from ibm.

I've seen mention about the k5000 having the same abilities as the k2, is that true?
If that is the case I should figure out how to mod my cards into the k5000 instead.

Right now I'm kind of sick of this issue.
I've been wanting to sli my cards since last dec.
I tried the different sli patch that doesn't work for trying to sli a k2 with a 680 lol.
Though I did not try sli'ing the 680m with the 680, I didn't learn how the soft straps worked until recently (I can mod my k2 into the 680m with soft straps, but that doesn't fix the dvi timing issues).
Though I've known about them since the 6800 ultra and 6600 gt's.

Anyways to put it simply, need a mod to re-enable display's on a card that originally should not have them to begin with.


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Author Topic: [MOVED] Hacking NVidia Cards into their Professional Counterparts (Read 1651950 times)

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