Need help with daughter's 2020 13" MBA part deux

[bazookaman]

Here is the original thread...
https://forums.macresource.com/read.php?...71,3000696

I've done everything suggested. Short of replacing the battery or the thermal paste on the CPU. She doesn't run Chrome. However, she does run Brave, which is a Chromium browser.

Her disk drive is hardly full.

I took off the bottom plate to blow out the dust bunnies but there were none. For a house with three cats, I was pleasantly surprised at how clean it was.

The last time her fans ramped up, I monitored the CPU usage. These are all the processes that were pegging the CPU at any given time over about ten minutes...

codesign
contactsd
syspolicyd
XprotectService
coreduetd

Which I think are all Apple processes.

So at this point, I have no idea. Her computer literally died today in 15 minutes. She was in Brave, typing things into her website calendar. She had Word open, working on her AP lit project. She also had Mail and Messages open. That's it.

OTOH. She is sitting here next to me with all the same apps open, and there's no issues at all. Its very intermittent.

As if thats not bad enough, the time on her computer is wonky. It shows that today is Monday. Not Tuesday. And the time fluctuates between the hours.

At this point, we're probably just going to take it to the Apple store. In June. When she's out of school.

[Tiangou]

bazookaman wrote: Short of replacing the battery...

Click on the battery-menu.

Does it say "service battery" ...?

Option-click on the Apple menu and select "System Information." From there, click on the "Power" category under "Hardware" and then copy/paste what it says under "Battery Information," please.

[bazookaman]

Tiangou wrote:
[quote=bazookaman]Short of replacing the battery...

Click on the battery-menu.

Does it say "service battery" ...?

Option-click on the Apple menu and select "System Information." From there, click on the "Power" category under "Hardware" and then copy/paste what it says under "Battery Information," please.
Does not say service battery.

Here's the battery info from the system info...

Model Information:
Serial Number: F5D02042KUDN4F4AL
Manufacturer: DSY
Device Name: bq20z451
Pack Lot Code: 0
PCB Lot Code: 0
Firmware Version: 1002
Hardware Revision: 1
Cell Revision: 1838
Charge Information:
The battery’s charge is below the warning level: No
Fully Charged: No
Charging: No
Full Charge Capacity (mAh): 3404
State of Charge (%): 77
Health Information:
Cycle Count: 409
Condition: Normal

[bazookaman]

In addition to the battery...

bazookaman's daughter wrote:
Today my clock was correct, then 40 minutes ahead, then 2 hours late, then correct again.

I double-checked last night. Her clock is set using the Apple time server. I guess it could be due to some funkiness with her school's network?

[anonymouse1]

I can't quite parse all the info, but I can say that if the "Full Charge Capacity (mAh): 3404" indicates the maximum charge the battery can hold, that it's really weak. When new, the full charge capacity was around 5100 max.

[C(-)ris]

At this point, I'd do an erase and reinstall of the OS. If that doesn't fix it, definitely a hardware problem. Unless it is under Applecare it will not be worth fixing.

[Tiangou]

anonymouse1 wrote:
I can't quite parse all the info, but I can say that if the "Full Charge Capacity (mAh): 3404" indicates the maximum charge the battery can hold, that it's really weak. When new, the full charge capacity was around 5100 max.

Depending on the reporter, seems to be about 4300 mAh to begin with. Should have about 80% of the original capacity.

For an old Intel Mac >400 cycles is scary, but the batteries are now rated for 1000 cycles and more.

Losing the time/date suggests a battery problem, but not seeing that in the stats.

...At this point, I suggest running a hardware test.
https://support.apple.com/en-us/102550

[bazookaman]

I will check that when she gets home tonight.

Might try a nuke and pave this weekend too.