I apologize if my post is in wrong forum. Okay, i have this problem with winbond w25q16dw ic. It is 1.8v from nvidia rtx a2000 gpu card. It is crazy tiny chip. The problem is that i can not erase it. It only erases something like 2%. I have tried with ch341a and svod3. I do not even know where i could buy this kind of chip. Any ideas how to get it erased?
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Re: winbond w25q16dw programming
Most likely there is a protection (status register), remove the protection first, then try to erase it.
Just remember what the protection was, so that later you can set and write it down after writing the bios.Last edited by lotas; 09-01-2023, 02:49 AM. -
Re: winbond w25q16dw programming
ch341 is not 1.8v - it's 3.3v for power and 5v on the data pins unless you mod it.
the chip is 1.65V ~ 1.95VComment
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Re: winbond w25q16dw programming
Stj: You should watch this video about the 5v modding. I do not think you need to mod it. https://www.youtube.com/watch?v=J8-Sh7DjiXw And i of course use the 1.8v adapter.
I have tried to unprotect it with asprogrammer but no change. just 2 second erase and it says done:/
Thx anyway
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Re: nvidia rtx a2000 winbond w25q16dw programming
what are you trying to do?
it can erase very fast - it has a built in function, you dont need to write FF all into it.Comment
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Re: nvidia rtx a2000 winbond w25q16dw programming
When i read the chip again after erase, i can see there is still alot of data left. only few first lines are now empty. But anyway, programming this bios is the final thing to try to get this card working. I beleive the gpu is dead so not really worth to waste alot of time with this.Comment
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Re: nvidia rtx a2000 winbond w25q16dw programming
try another flash if you have a good dumpComment
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Just archiving everything related to bumpgate since most stuff has disappeared from Google. Maybe people will finally take the time to read some of it and stop shouting "reflow gpu" at every occasion but rather try to understand what the real issue is…
Interesting parts about the failure analysis are "Why Nvidia's chips are defective" and "Why Nvidia's duff chips are due to shoddy engineering"
May complete this post at a later date with more details.
Basically issue is a combination of thermal dissipation of the chip with hotspot,... -
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