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B75MA-E33 sluggish after sleep


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Hi,

 

I successfully installed Catalina/latest on my old MSI B75MA-E33 platform:

MSI B75MA-E33

i5 3550
16GB RAM
SATA HDD (for testing non SSD, APFS)
GeForce 650 Ti

 

The system works fine except sleep:
-when entering sleep mode, the system wakes up again after seconds
-after wakeup, the system is extremely sluggish and unresponsive. Everything lags, including sounds

My EFI folder:

http://www.filedropper.com/efi_4

 

Trying different SMBIOSes didn't help. Can someone please help me?

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