iMac 2015 5k goes on standby for couple of minutes during work

[MaxFix]

Hi there,

iMac 2015 5k goes on standby during work then wakes up again in a minute or so after smashing keyboard in panic.

Tried:
NVRAM RESET
Clean OS
New PSU
Dancing with tambourine around it - no luck.

Any ideas?

Thanks!

 

[2informaticos]

Try clean ME BIOS...

 

[MaxFix]

Thanks for your reply. I have never tried to read or write BIOS chip on mac. So will need to do some research first. Which tool do you recommend for iMac? Thanks!

 

[2informaticos]

Medusa is a must have tool for Apple repairs.
It can work onboard with all machines which have a connector for SPI lines.
If not, SPI chip (BIOS) should be removed and placed in a proper adapter.
Medusa 3 has Pomona clip to attach directly on a SOP-8 chip onboard.
Many mentions available on the forum about this tool...