Hello! Did I assemble the diagram correctly?

 

Great job! Thanks to god a213m.
I followed your instructions to create a board with all the stuff connected. However, the RW tool can detect my Arduino, but they cannot find the DIMM. Sometimes, the EEPROM is found, but it immediately disconnects. I have checked all the connections and confirmed that they are correct.

SMBus hotfix: 20231214

• Fixed: False RAM type detection

This fixes some RAM being falsely detected as DDR5 due to some RGB controllers being improperly recognized as PMICs.
To use, extract the archive contents into directory where you have SPD-RW 20231210 located, overwriting the old dll file.

Second SMBus hotfix in a row: 20231217

SMBus hotfix #2

• Fixed: Errors 0x00000005 (Access is denied) and 0x000001B1 (A device which does not exist was specified), when running multiple instances of SPD-RW

Requires: 20231210 + 20231214
 
With this fix you should be able to run multiple instances of SPD-RW SMBus sessions with no issues.

MaPuXyAnA
Hello! Did I assemble the diagram correctly?

 

Hello, does it works?)

You can rewrite SPD via SMBus. Just read SPD from working DIMM and overwrite to your corrupted DIMM.
You don't need an adapter, unless the corrupted sections are within write protected blocks.
 

Install working DIMM in primary RAM slot, and put you corrupted DIMM in a different channels slot. The motherboard should POST, ignoring the non-working DIMM, but it will still be accessible via SMBus, allowing you to overwrite its SPD.
 
If it doesn't POST, cover all non SPD contacts with a tape, just leave contacts 1-6 on one side, and contacts 145-151 on the other side exposed. This will prevent CPU from communicating with DRAM chips, and will leave DIMM exposed to SMBus only.
 
If that won't work, you'll need to build an Arduino programmer.

Any non conductive tape should work, as long as it is strong enough and not too thick to prevent the module from being inserted.
 
As long as you are able to fully copy SPD, your XMP and EXPO profiles will be copied as well.
 
AM5 boards are confirmed to be supported by SPD-RW.

a213m
Install working DIMM in primary RAM slot, and put you corrupted DIMM in a different channels slot. The motherboard should POST, ignoring the non-working DIMM, but it will still be accessible via SMBus, allowing you to overwrite its SPD.
 
If it doesn't POST, cover all non SPD contacts with a tape, just leave contacts 1-6 on one side, and contacts 145-151 on the other side exposed. This will prevent CPU from communicating with DRAM chips, and will leave DIMM exposed to SMBus only.
 
If that won't work, you'll need to build an Arduino programmer.

Unfortunately, this method doesn't work, i isolated all pins, except 1-6, 145-151, speakers beeps 3 times. So i need to build Arduino Programmer? Will it help to me, i think Thaiphoon Burner flushed SPD data, when i pressed read button, then only black screen with that stick of ram :(

a213m
Restoring SPD should revive your RAM, if corrupted SPD contents is the only issue preventing it from working. At this point seems like building Arduino programmer is all you have left, if you don't have another motherboard to try.

Hello! Could you show final version of Arduino Progammer?) How does it looks assembled? If you could provide some photos, it's will be amazing)

Hi! I have an Arduino nano. I programmed it in arduino-ide_2.2.1_Windows_64 bit is your firmware, but the SPD-Reader-Writer-20230930 program does not see it. What's wrong?

Firmware 20231207 is not compatible with older versions of SPD-RW. Download https://github.com/1a2m3/SPD-Reader-Writer/releases/tag/20231210 

That is possible, even bare Arduino won't get detected, it will get stuck at resetPins() line in the setup() procedure. To bypass that, replace resetPins() with resetPinsInternal() on line 167 and reflash the Arduino. If it is detected after that, check your circuit again.

Hello! I checked the whole scheme. When resetPins() is on line 167, the SPD-RW program, the arduino is not visible. When reset Pins Internal() is on line 167, it sees but does not start and outputs the log:
[Info] 13.02.2024 18:55:29: Program started (v. 2.23.12.10, Core: 2.23.12.10 ) (Included FW: 20231207)
[Info] 13.02.2024 18:55:39: COM5: Initializing device (115200)
[Info] 13.02.2024 18:55:39: COM5: Connecting to device
[Info] 13.02.2024 18:55:41: COM5: Checking firmware version
[Info] 13.02.2024 18:55:41: COM5: Checking name
[Info] 13.02.2024 18:55:41: COM5: Checking I2C clock
[Info] 13.02.2024 18:55:41: COM5: Checking RSWP
[Info] 13.02.2024 18:55:42: COM5: RSWP unavailable
[Info] 13.02.2024 18:55:42: COM5: DDR5 RSWP disabled; Offline mode unavailable
[Info] 13.02.2024 18:55:42: COM5: DDR4 RSWP disabled; High voltage control unavailable
[Info] 13.02.2024 18:55:42: COM5: DDR3-SDRAM RSWP disabled; High voltage and SA1 controls unavailable
[Info] 13.02.2024 18:55:42: COM5 connected (Name: User, FW: v.20231207)
[Info] 13.02.2024 18:55:42: COM5: Ready!
 
Can you advise me what to do next?

4GB DDR4 test memory. I do everything according to your scheme. I use arduino nano on ATmega328P.  Maybe for your circuit, you need Atmega168P? This is my first time working with Arduino. The output HV_EN at the time of initialization is 2.3 v, at the 1st leg of the optocoupler is 1.8 V. The resistance is 330 ohms. The optocoupler does not turn on. accordingly, on HV_FB - 0. Optocoupler PC817.