820-3115 Boots, High Fans, Significant Lag

grmacs

Member
Nothing strange showing in Hardware monitors, ran Apple Hardware Test and no issues shown. I can't seem to download any compatible ASD's that will extract correctly so havne't been able to try that.

Etrecheck complains heavy kernel tasking.

Any other suggestions?
 

2informaticos

Administrator
Staff member
First of all, try another RAM module and HDD.
Also test with USB macOS, disconnecting internal HDD.
Trackpad board/flex as first suspects.

Run HWMonitor and check for strange temp values.
 

grmacs

Member
Nothing strange in HW monitor. tried different RAM and running external HD only. Tried different trackpad and flex.

Runs fine in safe boot. No lag or high fans. Testing with a clean OS also.
 
Last edited:

grmacs

Member
THANK YOU! I've been trying to find ASD's I could download and use. Anything I was able to download wouldn't extract properly. Spent many hours searching for solutions.
 

grmacs

Member
It appears those download links you provided were not the complete files? One was 74MB the other 43MB and both were instructions, references only for the ASD software.
 

piernov

Moderator
Staff member
Full ASD 3S155 EFI + OS should be around 2.7GiB, it should work on all 820-3115. Download from the usual Russian torrent.
(boards with Mojave BootROM update may not boot ASD EFI but ASD OS will still work)
You can also use MRI 64-bit.
 
Top