Where to edit fake GTX1050Ti BIOS to fix memory size?

[siryoink]

hello siryoink. Would you be so kind to help me modify my bios, I want its show only 1GB of ram, or could you explain a little more in depth, or how the value of 1G is given. Thanks a lot

I haven't had a chance to look at this until today. Looks like another fake 1050ti card, but the memory config is slightly different than what is typical of the Chinese card BIOS. Only use this if you have a way to flash back. If this doesn't work, please post pictures of the RAM chips on the card.

 

[anito9999]

I just bought 2 of these fake GPU's for a real cheap price and I seem to have a GTS450 as well my BIOS is pretty large for some reason 1MB can some one help me edit to the right config I have 4 SAMSUNG chips on there so I likely have the 1GIG Ram on there as well.

 

[Kyjja]

Hello !

Check this thread => https://www.techpowerup.com/forums/...bg-40-f-looking-for-bios.283040/#post-4536529

Open the dumped BIOS with an hex editor and looks for the 7DB0 & 7DD0 locations. The correct value for 1 GB RAM is A0 44.

Could you post a screenshot of GPU-Z and tell us the chip you got (GF106 or GF116) ?

I opened your bav.bin, the locations seems to be between 7D30 and 7D70. The 77 values are 55 on my own BIOS.

Yours :

90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 8F 04 02 11 00 04 01 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 00 90 77 02 8F 04 FB 10 00 04 01 00 00 55

Mine :

90 55 02 00 A0 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 8F 04 02 11 00 04 01 00 90 55 02 00 A0 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 00 90 55 02 8F 04 FB 10 00 04 01 00 00 55

I think the values you are looking for are located on 7D34-7D35 and 7D5B-7D5C. Try to swap the 90 77 values with A0 44.

 

[siryoink]

I just bought 2 of these fake GPU's for a real cheap price and I seem to have a GTS450 as well my BIOS is pretty large for some reason 1MB can some one help me edit to the right config I have 4 SAMSUNG chips on there so I likely have the 1GIG Ram on there as well.

https://www.techpowerup.com/forums/...-or-wish-1050ti-and-960-cards-a-guide.293490/

I wrote a guide for this, it should be fairly straightforward with yours.

 

[anito9999]

https://www.techpowerup.com/forums/...-or-wish-1050ti-and-960-cards-a-guide.293490/

I wrote a guide for this, it should be fairly straightforward with yours.

I did try your guide but I can't find the values for the Device ID and the one for the memory.

Hello !

Check this thread => https://www.techpowerup.com/forums/...bg-40-f-looking-for-bios.283040/#post-4536529

Open the dumped BIOS with an hex editor and looks for the 7DB0 & 7DD0 locations. The correct value for 1 GB RAM is A0 44.

Could you post a screenshot of GPU-Z and tell us the chip you got (GF106 or GF116) ?

I opened your bav.bin, the locations seems to be between 7D30 and 7D70. The 77 values are 55 on my own BIOS.

Yours :



Mine :




I think the values you are looking for are located on 7D34-7D35 and 7D5B-7D5C. Try to swap the 90 77 values with A0 44.

So should I just replace all 90 77 to A0 44 in those locations ?

Edit: I just tried the recommended changes but it made the GPU to stop showing a display.

 

[siryoink]

I just bought 2 of these fake GPU's for a real cheap price and I seem to have a GTS450 as well my BIOS is pretty large for some reason 1MB can some one help me edit to the right config I have 4 SAMSUNG chips on there so I likely have the 1GIG Ram on there as well.

How much RAM is this reporting under GPU-Z with the BIOS that is on it? It doesn't look like it's reporting 4GB, which is odd for one of these fakes.

So apparently yours isn't so straightforward.

Try the attached. I have no way to test to see if it works, let me know the results.

 

[Kyjja]

You can use this software which test the bandwidth. It will crash if the amount of memory in the firmware is above the real amount of memory on the card (in my case it crashed after 2048 MB, GPU-Z displayed 4 GB).

 

[anito9999]

How much RAM is this reporting under GPU-Z with the BIOS that is on it? It doesn't look like it's reporting 4GB, which is odd for one of these fakes.

So apparently yours isn't so straightforward.

Try the attached. I have no way to test to see if it works, let me know the results.

Sorry for the late reply here but it looks like I killed my 2 GPU's as my clip stopped working and was broken so ended up de-soldering the BIOS chips and soldering on the programmer board worked but when I soldered it back to the GPU's both stopped working entirely not sure what I did wrong but the I got a new clip I ordered online and I can still read the BIOS chip and I did use this but it is still not working for me.

I just got 2 more for the same price as before 8$ for each one so I am not feeling hurt on killing them.

These 2 seems to be using the Hynix chips and ran the memory test apps shared above and it reach 1024MB before crashing. here is the BIOS for these 2 looks to be using the same bios though.

 

[siryoink]

Currently out of town on vacation, I'll try to take a look at this next week.

 

[Kyjja]

Hynix H5GQ1H24AFR are 1 Gb GDDR5 chips ( see https://pdf1.alldatasheet.com/datasheet-pdf/view/333509/HYNIX/H5GQ1H24AFR.html )

With 8 chips you got 1 GB of RAM : chips are not remarked (or at least not with wrong capacity )


Is your last attachement the original BIOS ? Can you provide a GPU-Z Screenshot with the original chinese fake BIOS too ?


Btw, did you try to flash the BIOS with a software or with a CH341A programmer ?

 

[anito9999]

Hynix H5GQ1H24AFR are 1 Gb GDDR5 chips ( see https://pdf1.alldatasheet.com/datasheet-pdf/view/333509/HYNIX/H5GQ1H24AFR.html )

With 8 chips you got 1 GB of RAM : chips are not remarked (or at least not with wrong capacity )


Is your last attachement the original BIOS ? Can you provide a GPU-Z Screenshot with the original chinese fake BIOS too ?


Btw, did you try to flash the BIOS with a software or with a CH341A programmer ?

The BIOS I attached is the BIOS saved using GPU-Z showed 4GB RAM I tried to edit the BIOS so now I can't install any drivers including the one that came with the GPU's even though it now shows it's a GTS 450 in Device Manager not sure what I did wrong though and I am not at home now to re-flash the original BIOS I am using a CH341A programmer cause NVFLASH does not work with these fake Chinese cards.
GPU-Z does not show anything unless the driver is installed first.

I am gonna wait for siryoink to come back and hope maybe his edit will work better.

 

[siryoink]

The BIOS I attached is the BIOS saved using GPU-Z showed 4GB RAM I tried to edit the BIOS so now I can't install any drivers including the one that came with the GPU's even though it now shows it's a GTS 450 in Device Manager not sure what I did wrong though and I am not at home now to re-flash the original BIOS I am using a CH341A programmer cause NVFLASH does not work with these fake Chinese cards.
GPU-Z does not show anything unless the driver is installed first.

I am gonna wait for siryoink to come back and hope maybe his edit will work better.

Sorry it took a while to look at this, I've been busy since I got back.

You're in luck, because that card and bios is identical to the one I have in my desktop at the office. I'm actually using that card right now, so no need to edit a new file. BIOS dump from GPU-Z attached. This one has the RAM clocks tweaked up a little because I actually use the thing. Been using it for 6 months no issues.

 

[anito9999]

Sorry it took a while to look at this, I've been busy since I got back.

You're in luck, because that card and bios is identical to the one I have in my desktop at the office. I'm actually using that card right now, so no need to edit a new file. BIOS dump from GPU-Z attached. This one has the RAM clocks tweaked up a little because I actually use the thing. Been using it for 6 months no issues.

Thanks a lot gonna try it in a bit.

 

[siryoink]

Thanks a lot gonna try it in a bit.

It does report as a 550ti when it is really a GTS450v2, but since they have the same chip, I never bothered to go back and change it. The RAM they used is oddly a higher spec than stock GTS450, so you'll see the ram clock bumped up a bit from stock. The GPU and shader are both clocked above what the scalpers set them to, but underclocked from stock, because for whatever reason the chinese scalpers lopped the 6 pin connector off the cards. The card needs an extra 10-15w of power to go higher. I'm actually tempted to order another one and break out my soldering iron on it just to see what I could get it to do.

 

[anito9999]

It does report as a 550ti when it is really a GTS450v2, but since they have the same chip, I never bothered to go back and change it. The RAM they used is oddly a higher spec than stock GTS450, so you'll see the ram clock bumped up a bit from stock. The GPU and shader are both clocked above what the scalpers set them to, but underclocked from stock, because for whatever reason the chinese scalpers lopped the 6 pin connector off the cards. The card needs an extra 10-15w of power to go higher. I'm actually tempted to order another one and break out my soldering iron on it just to see what I could get it to do.

View attachment 269492

just tested it and neither the modded driver nor official ones are working just getting a message something went wrong in Device Manager have had this issue ever since I flashed in a different BIOS. and it is still found to be a GTS450

 

[Kyjja]

Could be frequencies issues.

Remember that those cards are made with faulty chips (both GPU and RAM), that's why fake BIOS use lower frequencies than real GTS450.

Does your original BIOS have the same frequencies as the BIOS provided by Siryoink ?

 

[anito9999]

Could be frequencies issues.

Remember that those cards are made with faulty chips (both GPU and RAM), that's why fake BIOS use lower frequencies than real GTS450.

Does your original BIOS have the same frequencies as the BIOS provided by Siryoink ?

not really sure how to check unless I Flash the OLD bios back.

 

[siryoink]

Correct that RAM frequency is probably the issue. The card I had most likely had good RAM on it, and that one is probably binned lower. They ship with it set quite a bit lower than what I was running. Try the attached.
Changes from previous file posted:
ID as GTS 450v2 from 550ti
GPU clock from 755Mhz to 750Mhz
Memory from 935Mhz to 800Mhz
Shader max clock from 1645Mhz to 1576Mhz

 

[anito9999]

will try it in a few.

 

[anito9999]

Correct that RAM frequency is probably the issue. The card I had most likely had good RAM on it, and that one is probably binned lower. They ship with it set quite a bit lower than what I was running. Try the attached.
Changes from previous file posted:
ID as GTS 450v2 from 550ti
GPU clock from 755Mhz to 750Mhz
Memory from 935Mhz to 800Mhz
Shader max clock from 1645Mhz to 1576Mhz

Thank you that did it Driver finally installed. running Unigine now.

 

[puyakq]

Try this. The BIOS you linked, but edited to report as a 1GB GTS 450. Rename from .txt to .rom to use.

hi man how i force to flash i get this error and if i dont fix ram like that man above i get crashes everygame pls help me
gpuz says gf116 memory 700 to alll 4gb ram

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. Toate drepturile rezervate.

C:\Windows\system32>cd C:\nvflash_5.814

C:\nvflash_5.814>nvflash64 227724eds.rom
NVIDIA Firmware Update Utility (Version 5.814.0)
Copyright (C) 1993-2023, NVIDIA Corporation. All rights reserved.

Checking for matches between display adapter(s) and image(s)...

Adapter not accessible or supported EEPROM not found, skipping

NOTE: Exception caught.

Results:
Index | Match | Flash | Name
<00> GeForce GTX 1050 Ti (10DE,1C82,0000,0000) S:00, B:01
Nothing changed!



ERROR: Detecting GPU failed.

C:\nvflash_5.814>

 

[siryoink]

hi man how i force to flash i get this error and if i dont fix ram like that man above i get crashes everygame pls help me
gpuz says gf116 memory 700 to alll 4gb ram

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. Toate drepturile rezervate.

C:\Windows\system32>cd C:\nvflash_5.814

C:\nvflash_5.814>nvflash64 227724eds.rom
NVIDIA Firmware Update Utility (Version 5.814.0)
Copyright (C) 1993-2023, NVIDIA Corporation. All rights reserved.

Checking for matches between display adapter(s) and image(s)...

Adapter not accessible or supported EEPROM not found, skipping

NOTE: Exception caught.

Results:
Index | Match | Flash | Name
<00> GeForce GTX 1050 Ti (10DE,1C82,0000,0000) S:00, B:01
Nothing changed!



ERROR: Detecting GPU failed.

C:\nvflash_5.814>

They cut the resistors on these so you can't flash them using nvflash. You need a chip programmer, ch341a or similar.