Replacement main board for Developers
#1
Hi

I develop Slackware for the ARM platform, and Pine64 were kind enough to donate a PbPro to the project.
Unfortunately it's now developed a hardware fault, which I made a video about here: https://youtu.be/knOqICIOwdM

Who's the best person to contact about this?

Thanks
 Stuart.
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#2
Perhaps you would be so kind as to describe the hardware fault.
:wq



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#3
(11-10-2023, 11:16 AM)KC9UDX Wrote: Perhaps you would be so kind as to describe the hardware fault.

Hi

Sorry, yes I forgot to describe it!

It intermittently fails to fully boot U-Boot from SPI flash or SD card - it hangs in the early stages.  If U-Boot boots correctly, the OS will boot but within a few minutes the system either hangs or the Kernel panics.
I've also tried testing the memory from within Linux, resulting in a hang after a few minutes.


It won't power on if the battery is connected, and there's a high-pitch whining noise coming from (I think) the main board.
It's not a software problem, as U-Boot hasn't changed in months and it's what's in use for other Slackware users.


Thanks
s.
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#4
Interesting. It sounds like classic bad RAM or overheat. Have you tried throttling the CPUs?

The high pitch whine may or may not be normal with the battery disconnected. I wonder if you had a shorted battery which damaged the power circuit. You may need to get both a main board and a battery. (There was a thread here recently about buying batteries).

I wonder if @tllim has a word on a replacement main board.
:wq



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#5
(11-13-2023, 04:46 AM)KC9UDX Wrote: Interesting.  It sounds like classic bad RAM or overheat.  Have you tried throttling the CPUs?

The high pitch whine may or may not be normal with the battery disconnected.  I wonder if you had a shorted battery which damaged the power circuit.  You may need to get both a main board and a battery.  (There was a thread here recently about buying batteries).

I wonder if @tllim has a word on a replacement main board.

My guess is bad RAM as well.  I've not tried throttling the CPUs. The machine is stone cold when turned on, yet invariably won't complete booting U-Boot.
I've not been experimenting with the hardware and a fault subsequently developed:  I disconnected the battery because it wouldn't turn on with it connected, then discovered the rest of the faults once I had it booting.

If a replacement board can be provided, I'd appreciate it - without it Slackware won't support the PineBook Pro, and I enjoy using it to develop the project.

Thanks
s.
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#6
(11-14-2023, 04:03 AM)mozes Wrote:
(11-13-2023, 04:46 AM)KC9UDX Wrote: Interesting.  It sounds like classic bad RAM or overheat.  Have you tried throttling the CPUs?

The high pitch whine may or may not be normal with the battery disconnected.  I wonder if you had a shorted battery which damaged the power circuit.  You may need to get both a main board and a battery.  (There was a thread here recently about buying batteries).

I wonder if @tllim has a word on a replacement main board.

My guess is bad RAM as well.  I've not tried throttling the CPUs. The machine is stone cold when turned on, yet invariably won't complete booting U-Boot.
I've not been experimenting with the hardware and a fault subsequently developed:  I disconnected the battery because it wouldn't turn on with it connected, then discovered the rest of the faults once I had it booting.

If a replacement board can be provided, I'd appreciate it - without it Slackware won't support the PineBook Pro, and I enjoy using it to develop the project.

Thanks
s.

if you don't hear from @tllim by the end of the week, shoot me a pm. pine store appears to have these in stock right now. i'd be happy to purchase and send a mainboard your way.
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#7
(11-14-2023, 04:03 AM)mozes Wrote:
(11-13-2023, 04:46 AM)KC9UDX Wrote: Interesting.  It sounds like classic bad RAM or overheat.  Have you tried throttling the CPUs?

The high pitch whine may or may not be normal with the battery disconnected.  I wonder if you had a shorted battery which damaged the power circuit.  You may need to get both a main board and a battery.  (There was a thread here recently about buying batteries).

I wonder if @tllim has a word on a replacement main board.

My guess is bad RAM as well.  I've not tried throttling the CPUs. The machine is stone cold when turned on, yet invariably won't complete booting U-Boot.
I've not been experimenting with the hardware and a fault subsequently developed:  I disconnected the battery because it wouldn't turn on with it connected, then discovered the rest of the faults once I had it booting.

If a replacement board can be provided, I'd appreciate it - without it Slackware won't support the PineBook Pro, and I enjoy using it to develop the project.

Thanks
s.

You have PM me but not allow me to reply. This is the error message: mozes has private messaging disabled. You cannot send private messages to this user.
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#8
Can anyone with only 3 posts receive PMs?
:wq



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#9
(11-17-2023, 08:03 AM)KC9UDX Wrote: Can anyone with only 3 posts receive PMs?

Good question. I thought it was after 3 posts approved by mods PMs unlocked. I should probably look into that lol

edit: searched the forums, but it seems the mentions of the new user approval system has changed/been edited, so I've posted in the mods forum for clarification.
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#10
(11-17-2023, 12:26 AM)tllim Wrote: You have PM me but not allow me to reply. This is the error message: mozes has private messaging disabled. You cannot send private messages to this user.

Hi

I didn't know that was a default: I can receive PMs now.

Thanks
s.
  Reply


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