A1466 820-00165-A no disk

[hgoncalves]

Hi,

I have an A1466 820-00165-A that doesn't recognize the SSD.

Already tried several other SSD with the same result. Does this model use to have the CPU problem? How can I test it?

Can you help?

 

[2informaticos]

Any history available?
Check U3740 voltages, w/ and w/o SSD connected.

 

[hgoncalves]

Hi,
No history. Client says that it stoped working.

U3740 with SSD connected:
1 = 3.4V
2 = 0.998V
3 = 3.287V
4= 0V
6= 0.633V
7= 0V
8= 3.284V

U3740 w/o SSD connected:
1 = 3.4V
2 = 1V
3 = 3.287V
4= 0V
6= 0.627V
7= 3.3V
8= 3.284V

 

[2informaticos]

Check R1620/96; only one must be used.
You can try to force the power enable soldering a lower value.
Use R8070, as last resort...

 

[hgoncalves]

Hi.
It worked.
TKS!

 

[hgoncalves]

Hi,

After all, it seams that I still have a problem with it.
When instaling the macos, when it reaches 1 minute for complete the installation, it stays there forever...
Already tried 2 SSDs
Any idea?

 

[2informaticos]

Tried clean ME BIOS?

 

[hgoncalves]

Hi,
Yes, already tried a clean ME

 

[2informaticos]

Test with an SSD with macOS preinstalled on other machine.

 

[hgoncalves]

Hi,

Now everything works. However the fan is always at full RPM, and the videos (YouTube, etc.) are very laggy.
Already tried new trackpad and cable, but with same result.
Can it be related with the fact that I've used R8070 to get the enable signal?

 

[2informaticos]

Shouldn't be related.
Run HWMonitor and see if any temp, or current sensor looks strange.