MP 1,1-5,1 MP 5.1 Help for Diagnostic led what does SYS PG means?

[ZAK1813]

Hi all! I have a problem with my MP ( see this tread:
Thread 'Mac Pro no signal anymore'
https://forums.macrumors.com/threads/mac-pro-no-signal-anymore.2398458/)

And I don’t find any info in this forum or on the internet about SYS PG led , it don’t illuminate when i hold diag button. Is there an expert at macrumors ?

Sum up (correct if I’m wrong) :

OVTMP CPU A : CPU A
OVTMP CPU B : CPU B
5v : PSU or backplane
PSU : PSU or backplane
SYS PG : ????!
EFI: EFI working
GPU Ok : GPU recognize by MP

I need this info for resolving my problem….

Thanks in advance.

 

[tsialex]

SYS PG = System Power Good.

It's the LED that indicates all the voltages required on the backplane are correct, only works after the Mac Pro powered on, does not work when the DIAG button is pressed with the Mac Pro powered off.