After pushing start, it beeps ones and then nothing. After aprox. five seconds it takes the start signal again.
The console was never opened and is in very good condition.
All standby voltages are present, no shorts, no open fuses. The power on voltages are only partial readable doe to the power off after 1 sec.
The power consumption at powercord plugin: 7 mA → max 220 mA (stays some seconds) → back to 7 mA. For some reasons it doesn’t goes pass 220 mA to the expected 300 mA.
I tried to insert a disc, but the drive doesn’t start the PS5 and doesn’t start to pull the disc in. (The drive is working fine at another PS5) If eject is pushed, the no disc inside beeps are hearable.
Is my assumption right that the southbridge is the culprit?
Thank you. I watched some ToltecMerc and TheCod3r videos with similar one-beep-and-nothing problems, but not quit the same case.
I will first reball the southbridge and if no change replace the southbridge.
Doe to the high price of the southbridge, I hoped someone have some experience with faulty southbridges.
In case of SB issue from my exp, you wont have one beep when press power button at all or current draw wont go higher than 100mA. I rarely saw any mainboard came in with SB issue but draw that much current.
Ok. Good to know.
At the EMC UART I get the correct prompt: OK 00000000:3A $$ [MANU] UART CMD READY:36
But doe to playing around with the NOR, I asume that this output only indicates a working southbridge.
My focus on the SB is because of the missing start at inserting a disc. Normaly it starts the PS5.
I’m gonna dig up the dead on this one in hopes of something.
PS5 EDM-033 - history unknown. Arrived dead to the world.
I’ve replaced many chips on this thing; some had visible holes from something happening to this console. Other chips were shorted and glowed under thermal. Big name chips I replaced are the WiFi chip, southbridge, SSD controller, and SDRAM. Various UART codes between major processes. I eventually a beep, no lights, and now get the following codes:
00 18-May-26 17:07:18 808B0000 Low Known Unknown 474 (Power or Short) - Report Findings
|-(OK 00000000 808B0000 FFFFFFFF FFFF00F6 00000000 2186 0000 FFFF FFFF:41)
Click for TSB Information
01 18-May-26 17:07:18 80810001 Severe PowerSequence - Power Sequence Error - General Power Failure (Peripheral, GDDR6, APU, Data Line Short)
|-(OK 00000000 80810001 FFFFFFFF FFFF0042 00000000 2039 0000 FFFF FFFF:18)
During initial power, my bench PSU reads .220 amps and down to about .005 amps after initial boot sequence.
