Edit VRAM size for a Fake gt730

[Juanzez21]

Note: Im using this card like 1 year ago, i know i've been scammed, i cant refund it.
I have a fake gt730 and i want to edit vram capacity from 2048mb to 1024mb
because when the vram usage above 1gb the driver crashes so i want to hex mod the bios and reduce the vram capacity in the bios from 2048 to 1024mb, is possible? Like 8 months ago i searched how to do this, but i gave up. Can u help me? I need a ch341a to do this? or with nvflash is enough? (sorry if my english is crappy)

Pls help me with this

 

[Count von Schwalbe]

If you also post a picture of the white sticker on the back of the card, and a close up picture of the VRAM chip, @eidairaman1 will help you find the correct BIOS, so you do not have to modify one.

 

[Juanzez21]

If you also post a picture of the white sticker on the back of the card, and a close up picture of the VRAM chip, @eidairaman1 will help you find the correct BIOS, so you do not have to modify one.

Here, i also noticed that one chip of VRAM is different, maybe is 128MB? idk weird chinese card

 

[BlaezaLite]

Urgh, clean that fan while its all apart.

 

[Juanzez21]

Urgh, clean that fan while its all apart.

ye i forgot lol

 

[looniam]

you need to clean off and take a pic of the GPU chip itself, because right now it looks like those are 2GB each chips:

though someone should check my work

i couldn't find that odd man out (different chip) which leads me to believe someone swapped out a bad chip with one that really shouldn't be there so - thats the problem.

 

[Juanzez21]

you need to clean off and take a pic of the GPU chip itself, because right now it looks like those are 2GB each chips:
View attachment 253466

though someone should check my work

i couldn't find that odd man out (different chip) which leads me to believe someone swapped out a bad chip with one that really shouldn't be there so - thats the problem.

So the different chip is the problem?? The card have 4 chips..so "512MB?" I dont know. (Is confusing bc, if that is true then my pc should crash when passing 512MB right?)
Btw is there a way to trick the pc to think i have less vram? Or a game? (Like cuphead)

 

[looniam]

So the different chip is the problem?? The card have 4 chips..so "512MB?" I dont know. (Is confusing bc, if that is true then my pc should crash when passing 512MB right?)

more answers will come with a pic of the gpu chip. i highly doubt its a 730 at all.

Btw is there a way to trick the pc to think i have less vram? Or a game? (Like cuphead)

no.

E:
if that was possible then that odd Vram chip wouldn't be there. it looks like a chip went bad and was replaced with one that isn't right but close enough that it works enough for light loads. could be it needs slightly more voltage or the timings are off; all that (and more) needs to match exactly.

 

[Assimilator]

you need to clean off and take a pic of the GPU chip itself, because right now it looks like those are 2GB each chips:
View attachment 253466

though someone should check my work

i couldn't find that odd man out (different chip) which leads me to believe someone swapped out a bad chip with one that really shouldn't be there so - thats the problem.

No, those are 128Mbit * 16 = 2Gbit = 256MB * 4 chips = 1GB, so OP is correct.

Based on my own research it seems like -BP-CG is just an older revision of -FP-DI, which makes sense: if the replaced chip was different in any way, the card wouldn't run at all. I think that flashing a 1GB BIOS will solve the stability issue.

 

[Shrek]

Since they replaced one RAM chip, I'm kind of surprised they didn't bother to add 4 to the other side and make it a 2G card.

Then again, is that damage I see?

 

[Juanzez21]

No, those are 128Mbit * 16 = 2Gbit = 256MB * 4 chips = 1GB, so OP is correct.

Based on my own research it seems like -BP-CG is just an older revision of -FP-DI, which makes sense: if the replaced chip was different in any way, the card wouldn't run at all. I think that flashing a 1GB BIOS will solve the stability issue.

yeah but, how to do that?

Since they replaced one RAM chip, I'm kind of surprised they didn't bother to add 4 to the other side and make it a 2G card.

Then again, is that damage I see?

View attachment 253484

I dont know, i'll see

more answers will come with a pic of the gpu chip. i highly doubt its a 730 at all.

no.

E:
if that was possible then that odd Vram chip wouldn't be there. it looks like a chip went bad and was replaced with one that isn't right but close enough that it works enough for light loads. could be it needs slightly more voltage or the timings are off; all that (and more) needs to match exactly.

Yea lol

Its weird, but in case u dont see something:

NVIDIA®
S. TAIWAN 1349A1
NXH410.03W

GF119-300-A1 (or GF118 or GF110(not probably)?)

Sooo what now?

 

[Juanzez21]

help

 

[eidairaman1]

help

That's not a 2GB card but a 1GB card (2Gb=0.250 GB *4= 1GB the ram is DDR3, not GDDR 5.

NT5CB128M16FP-DI Datasheet(PDF)

Part #: NT5CB128M16FP-DI. Download. File Size: 6MbKbytes. Page: 163 Pages. Description: Commercial, Industrial and Automotive DDR3(L) 2Gb SDRAM. Manufacturer: Nanya Technology Corporation..

www.alldatasheet.com

Definitely not GF 110, but your GPU-Z screenshot says GF116.

GF117 has 48 Shaders, 8 TMUs, 8 ROPs

TechPowerUp

Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.

www.techpowerup.com

GF118 does not Exist in our database, GF119 does though

In this Situation I believe @siryoink might be able to assist because as far as I know GF 116 were reserved for the 450GTS or 550ti. GF110 is 580.

TechPowerUp

Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.

www.techpowerup.com

@Juanzez21

Open GPU-Z again and click the black arrow to the left of the UEFI checkbox and attempt to upload the bios through GPU-Z itself, force it through, you should get a link to the bios, post that link here please.

It could very well be a GF117, 119, or 116.

I wonder if Qimonda and Nanya are the same company. (I believe they were)

Formosa Plastics Group - Wikipedia

en.m.wikipedia.org

Qimonda - Wikipedia

en.m.wikipedia.org

Formosa Plastics Group - Wikipedia

en.m.wikipedia.org

 

[siryoink]

It's a GF119-300-A1. Beyond me how anyone could be making profit turning 610 cards into 730 cards in this day and age, but here we are.

The attached BIOS changes the HWID to a GT 610 & RAM size to 1GB.

I haven't messed with this hardware myself, so I don't know if you can flash with nvflash or if a chip programmer will be required. The soft straps were already set to unlocked, so if it doesn't work with nvflash, it would be because a resistor is cut like on the fake 1050ti cards.

 

[eidairaman1]

It's a GF119-300-A1. Beyond me how anyone could be making profit turning 610 cards into 730 cards in this day and age, but here we are.

The attached BIOS changes the HWID to a GT 610 & RAM size to 1GB.

I haven't messed with this hardware myself, so I don't know if you can flash with nvflash or if a chip programmer will be required. The soft straps were already set to unlocked, so if it doesn't work with nvflash, it would be because a resistor is cut like on the fake 1050ti cards.

GF119 i presume was just the silkscreen or was it in the bios dump?

 

[Juanzez21]

That's not a 2GB card but a 1GB card (2Gb=0.250 GB *4= 1GB the ram is DDR3, not GDDR 5.

NT5CB128M16FP-DI Datasheet(PDF)

Part #: NT5CB128M16FP-DI. Download. File Size: 6MbKbytes. Page: 163 Pages. Description: Commercial, Industrial and Automotive DDR3(L) 2Gb SDRAM. Manufacturer: Nanya Technology Corporation..

www.alldatasheet.com

Definitely not GF 110, but your GPU-Z screenshot says GF116.

GF117 has 48 Shaders, 8 TMUs, 8 ROPs

TechPowerUp

Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.

www.techpowerup.com

GF118 does not Exist in our database, GF119 does though

In this Situation I believe @siryoink might be able to assist because as far as I know GF 116 were reserved for the 450GTS or 550ti. GF110 is 580.

TechPowerUp

Graphics card and GPU database with specifications for products launched in recent years. Includes clocks, photos, and technical details.

www.techpowerup.com

@Juanzez21

Open GPU-Z again and click the black arrow to the left of the UEFI checkbox and attempt to upload the bios through GPU-Z itself, force it through, you should get a link to the bios, post that link here please.

It could very well be a GF117, 119, or 116.

I wonder if Qimonda and Nanya are the same company. (I believe they were)

Formosa Plastics Group - Wikipedia

en.m.wikipedia.org

Qimonda - Wikipedia

en.m.wikipedia.org

Formosa Plastics Group - Wikipedia

en.m.wikipedia.org

sorry for late
Can't submit it, because "the bios is already part of their collection", so clicked open in browser and: https://www.techpowerup.com/vgabios/211019/211019

It's a GF119-300-A1. Beyond me how anyone could be making profit turning 610 cards into 730 cards in this day and age, but here we are.

The attached BIOS changes the HWID to a GT 610 & RAM size to 1GB.

I haven't messed with this hardware myself, so I don't know if you can flash with nvflash or if a chip programmer will be required. The soft straps were already set to unlocked, so if it doesn't work with nvflash, it would be because a resistor is cut like on the fake 1050ti cards.

oh, just a little issue, how to use nvflash? can u help me so i dont break my card

 

[eidairaman1]

sorry for late
Can't submit it, because "the bios is already part of their collection", so clicked open in browser and: https://www.techpowerup.com/vgabios/211019/211019


oh, just a little issue, how to use nvflash? can u help me so i dont break my card

Funny how the bios detects your ram as Samsung yet you think it would show qimonda/nanya.

Follow this video

 

[siryoink]

GF119 i presume was just the silkscreen or was it in the bios dump?

"GF119 Board" was actually in the BIOS dump, from the base bios they hacked to create this thing. Combine that with the silkscreen, and it's either a 610 or a 520. 810mhz gpu clock would make it most likely a 610.

If nvflash doesn't work, as it frequently doesn't because the scammers cut one of the leads to the BIOS chip, he'll need a chip programmer:

CH341A BIOS PROGRAMMER

Those things run around $10 on aliexpress.

 

[Juanzez21]

"GF119 Board" was actually in the BIOS dump, from the base bios they hacked to create this thing. Combine that with the silkscreen, and it's either a 610 or a 520. 810mhz gpu clock would make it most likely a 610.

If nvflash doesn't work, as it frequently doesn't because the scammers cut one of the leads to the BIOS chip, he'll need a chip programmer:

CH341A BIOS PROGRAMMER

Those things run around $10 on aliexpress.

Funny how the bios detects your ram as Samsung yet you think it would show qimonda/nanya.

Follow this video

I'll try, thanks, i hope nvflash work

 

[eidairaman1]

I'll try, thanks, i hope nvflash work

Lettuce know

 

[Juanzez21]

Lettuce know

i have a question, can i flash my gpu using my igpu? and what do i do if the fixed bios doesnt work and my pc doesnt boot?

 

[siryoink]

If your board has a built in video port, you can boot from that to flash the card, and also boot from that to recover in the event of a bad flash.

I believe if this is any thing like other fake Nvidia cards, you will probably need that chip programmer. But I am curious to hear if nvflash works on this one.

 

[Juanzez21]

If your board has a built in video port, you can boot from that to flash the card, and also boot from that to recover in the event of a bad flash.

I believe if this is any thing like other fake Nvidia cards, you will probably need that chip programmer. But I am curious to hear if nvflash works on this one.

yea but theres a problem, when i use the igpu, i boot, windows start and then causes a blue screen, maybe the fake gpu is causing a conflict, how i can fix that?

 

[siryoink]

yea but theres a problem, when i use the igpu, i boot, windows start and then causes a blue screen, maybe the fake gpu is causing a conflict, how i can fix that?

The GPU being fake shouldn't have anything to do with your onboard video, any more than booting with any other secondary card would. Does the onboard video crash when a second card is not plugged in?

 

[Juanzez21]

The GPU being fake shouldn't have anything to do with your onboard video, any more than booting with any other secondary card would. Does the onboard video crash when a second card is not plugged in?

Lettuce know

Guess what! I was talking with my father and decided to buy the ch341a programmer! So I think thats better than nvflash, also I don't break my card lol, I'll let you know if the thing has arrived, so u can help me with that right?