Sapphire RX580 new memory chip soldering question

[bogdanhunea]

Hello internet ppl,

Let m tell you a interesting story, maybe you could help me somehow:

I did an experiment, replace the memory chips from an rx580 (K4G41325FE-HC25 - 4 GB) with some new one K4G80325FB-HC22 ( 8 GB) aiming to increase the physical memory of my card from 4 to 8 GB. The soldering part was made professionally.

After this procedure, windows is seeing my card however i receive a code 43 error (Windows has stopped this device because it has reported problems. (Code 43))

I thought that this is something normal, since the GPU has now different memory chips.

I tried all the bios found on techpowerup, change the timings, research on the internet, call some friends, but i was unable to receive a valid opinion of a possible solution for this issue.

Below are some print screen from meminfo, gpuz and current bios that is on the GPU.

If anybody did this type of experiment and manage to figure it out how to resuscitate the GPU after the intervention or have any other idea on what should i do, please leave a comment.

Cheers!

 

[Fantic666]

Do you had any success ?

Maybe you could try Linux OS ? My 4GB Card didnt work in windows ( error 43 too ) bit if i use Raveos - no Problem.
Are you able to test it on another OS ?

 

[flatty]

I don't want to disappoint you, but I would bet you will never ever make it to work with 8 Gb. (even BEING SURE that soldering is perfect). Very likely there exist "hardware informations" (generated for example by resistors combinations) that determine the card "identity". And with 8 gigs the card will have "another indentity" in conflict with that infos

 

[Muaadib]

Bit of a long shot but i would say look for 8GB cards' BIOS files that have the exact memory modules you installed and flash that.

 

[greyphilosophy]

Nice experiment! I have a Sapphire Pulse RX 580 8gb open on my desk right now. I'm waiting for some mosfets to arrive so I can get it working again. Here are some closeup pictures of the card. I can do my best to measure the resistors, just let me know which ones you want me to try and read. I'm hoping that it's the case that the 4gb card has an extra resistor, so all you have to do is remove it and it will register as a 8gb.

Have you tried running the card in linux? I'd be curious what kind of hashrate you can get since the memory chips you used are a bit faster than the normal ones in 8gb cards.

 

[bogdanhunea]

Nice experiment! I have a Sapphire Pulse RX 580 8gb open on my desk right now. I'm waiting for some mosfets to arrive so I can get it working again. Here are some closeup pictures of the card. I can do my best to measure the resistors, just let me know which ones you want me to try and read. I'm hoping that it's the case that the 4gb card has an extra resistor, so all you have to do is remove it and it will register as a 8gb.

Have you tried running the card in linux? I'd be curious what kind of hashrate you can get since the memory chips you used are a bit faster than the normal ones in 8gb cards.

Hi,

I attached a picture of my board. Can you make some additional pictures with the board, to include all the GPU? I tried to run in Linux but it doesn't work. The card is recognized but I received some errors and I cannot start it. Tried different bios ,flash them on windows, Linux, and using a ch341a with no success. Assuming that the chips are perfectly soldered, the only thing that is not checked is the board schematics, resistors etc.

Thanks in advance

 

[greyphilosophy]

Sorry for the slow response. Fixed a bad MOSFET, replaced the fuses, and then after a couple minutes the GPU went really hot, the other fuse blew, and now that one reports a short. Unfortunately when I run my power supply from the fuse to ground the die gets warm, so I think this card is now a pile of parts. I've been trying to avoid thinking about it. But anyway, here's a photo for you.

The bios you show up above looks pretty heavily modded. Have you tried this one https://www.techpowerup.com/vgabios/208710/sapphire-rx580-8192-180719 ?

 

[Ruru]

I don't want to disappoint you, but I would bet you will never ever make it to work with 8 Gb. (even BEING SURE that soldering is perfect). Very likely there exist "hardware informations" (generated for example by resistors combinations) that determine the card "identity". And with 8 gigs the card will have "another indentity" in conflict with that infos

I doubt that as we've seen that modified RTX 3070 with 16GB VRAM recently for example.

 

[flatty]

dead on the science shrine, RIP )

 

[yanuk]

Hello internet ppl,

Let m tell you a interesting story, maybe you could help me somehow:

I did an experiment, replace the memory chips from an rx580 (K4G41325FE-HC25 - 4 GB) with some new one K4G80325FB-HC22 ( 8 GB) aiming to increase the physical memory of my card from 4 to 8 GB. The soldering part was made professionally.

After this procedure, windows is seeing my card however i receive a code 43 error (Windows has stopped this device because it has reported problems. (Code 43))

I thought that this is something normal, since the GPU has now different memory chips.

I tried all the bios found on techpowerup, change the timings, research on the internet, call some friends, but i was unable to receive a valid opinion of a possible solution for this issue.

Below are some print screen from meminfo, gpuz and current bios that is on the GPU.

If anybody did this type of experiment and manage to figure it out how to resuscitate the GPU after the intervention or have any other idea on what should i do, please leave a comment.

Cheers!





View attachment 194747View attachment 194748View attachment 194749

This guy here seemed to have done it successfully

Sapphire RX480 swapping memory from Samsung to Micron

Hi, I recently swapped a RX480 memory from Samsung ( K4G41325FE-HC28 ) 4GB chips to Micron ( MT51J256M32HF ) 8 GB chips, the card has image, no artifacts or similar problems but I cannot manage to get the driver to work ( shows error 43 in Windows ). I have to mention that I tried and flashed mul...

linustechtips.com

 

[greyphilosophy]

@bogdanhunea, the guy from Yanuk's link ran into the error 43 problem, and was able to resolve it by changing the bios. You might have a harder time because the timings on the VRAM you installed are much faster than any of the stock 580 VRAM, but it's possible to change an existing bios with a hex editor.

 

[eidairaman1]

@bogdanhunea, the guy from Yanuk's link ran into the error 43 problem, and was able to resolve it by changing the bios. You might have a harder time because the timings on the VRAM you installed are much faster than any of the stock 580 VRAM, but it's possible to change an existing bios with a hex editor.

I would need the SKU sticker info to find a good bios.

The op hasnt been here since June 1st

 

[greyphilosophy]

I would need the SKU sticker info to find a good bios.

The op hasnt been here since June 1st

I don't think that will help. If you look at the OP, he already has a bios for the K4G80325FB brand of VRAM he installed. I think the problem is he's using HC22's instead of HC25's, and they have a different timing (9.0Gbps vs 8.0Gbps).

 

[yanuk]

Won't a higher bandwidth perform better?