Ps5 aurt error 80801101

[xiran64]

Hi to all!

I have a PS5 that died after a fall. When I connect the UART, I get the error code 80801110: Severe RAM GDDR6 (Bank 5) - Single Beep, 1 second blue light, off.

How can I find out which RAM it is, and how can I tell if the APU isn't communicating with that RAM, or if the RAM is broken?

I should mention that I already completely cleaned the liquid metal APU to see if that was the problem.

Thanks in advance!

 

[stetofix]

For error code 80801110 RAM #5 would be the RAM chip in question.
It could be the RAM chip itself or the BGA connection to the board or also the other end at the APU or its BGA connection(s) for this RAM chip.

 

[xiran64]

For error code 80801110 RAM #5 would be the RAM chip in question.
It could be the RAM chip itself or the BGA connection to the board or also the other end at the APU or its BGA connection(s) for this RAM chip.

View attachment 549840

Hi again stetofix!

Thx for your answer!

So, first the first:

1) Reball ic ram chip 5 (check if are damaged pads/traces)
2) Replace ic ram chip 5
3) APU reflow...
4) APU reball (check if are damaged pads/traces)...
5) APU replace...

3, 4 and 5, are not for simple persons... =(

5 maybe are married with another ic...

 

[stetofix]

I would desolder the ram chip #5 and check the pads on the mainboard for correct readings.
If the diode mode readings are fine, I would replace the RAM chip direct and not try to use the old chip.
At checking the pads, I usually look for missing or far off values (for ex. 'oL' instead of 378 mV)

Working on APUs is definitiv something for very skilled and experienced persons.
A single APU can not be replaced. As you wrote, it is married to other components.

 

[xiran64]

I would desolder the ram chip #5 and check the pads on the mainboard for correct readings.
If the diode mode readings are fine, I would replace the RAM chip direct and not try to use the old chip.
At checking the pads, I usually look for missing or far off values (for ex. 'oL' instead of 378 mV)

Working on APUs is definitiv something for very skilled and experienced persons.
A single APU can not be replaced. As you wrote, it is married to other components.


View attachment 549973

Good idea stetofix!

In the next days i´ll try!

Thx for the advice!

 

[xiran64]

Good idea stetofix!

In the next days i´ll try!

Thx for the advice!

Ok, i´ve found gray pads in ram chip...

 

[xiran64]

Ok, i´ve found gray pads in ram chip...

I´ve desolder incorrect ram number 1, uart send two errors: RAM 1 and 5.

Resolder correctly ram #1, and error from ram#1 gone.

Changed ram #5, same error.

So, maybe APU have error, or pads in APU.

Initially, the error come from a ps5 trowed, metallic paste removed totally, without luck.

 

[cene]

After a fall in 99% of the cases the problem is in APU solder joints

 

[MikeMigge]

Error points to GDDR6 Bank 5. On the PS5 board, banks are labeled on the RAM chips-check the datasheet or board silk-screen. If the APU isn’t reading that bank, the chip is likely bad; testing usually requires a memory programmer or swapping with a known-good chip to confirm.

 

[xiran64]

Error points to GDDR6 Bank 5. On the PS5 board, banks are labeled on the RAM chips-check the datasheet or board silk-screen. If the APU isn’t reading that bank, the chip is likely bad; testing usually requires a memory programmer or swapping with a known-good chip to confirm.

Thats a good point, i´ve remove the memory from an ps5 that are working in the past, so, you thing APU is dead? The only thing I haven't tried yet is removing the APU and looking for broken pads.

 

[thesjaakspoiler]

Thats a good point, i´ve remove the memory from an ps5 that are working in the past, so, you thing APU is dead? The only thing I haven't tried yet is removing the APU and looking for broken pads.

You could take a look at the datasheet to see whether those pads are actually used.
In the case of an emmc, like 90% of the pads are not connected.

 

[xiran64]

You could take a look at the datasheet to see whether those pads are actually used.
In the case of an emmc, like 90% of the pads are not connected.

I mistakenly performed the reballing procedure on memory module #1, and the UART returned an error in banks 1 and 5. I improved the reballing process (using solder balls instead of paste), and the error in bank 1 was resolved. I replaced RAM module #5, but the error persists, leaving the APU as the last resort.

 

[slimmy182]

I mistakenly performed the reballing procedure on memory module #1, and the UART returned an error in banks 1 and 5. I improved the reballing process (using solder balls instead of paste), and the error in bank 1 was resolved. I replaced RAM module #5, but the error persists, leaving the APU as the last resort.

did you solve it?

 

[xiran64]

did you solve it?

Not yet, APU reball or change it, is needed