[TriLUG] Advice Please

[Stephen Wiley via TriLUG]

I did a quick check and it looks like you can find the schematics for
that one online. If you have a multimeter you can probably go over the
testpoints and verify the voltages all make sense. I found a dead
backlight driver on my sister's old macbook this way.

--Stephen

On Wed, Feb 19, 2025 at 11:13:50AM -0500, Dwain Sims via TriLUG wrote:
> Many thanks to all who replied.  Here I am with an update.
> 
> I was able to pull the bottom plate off of the P14s last evening.
> Nothing looks amiss.  The battery looks brand new. No swelling at all
> (unlike most Dells!   This is the brand I have encountered this the most
> on.)
> 
> So this system has 16GB of DDR RAM, and it appears that 8GB is soldered on
> the MB and 8 GB is in a single DIMM slot.
> 
> I pulled the DIMM and tried again.  No change in behavior.
> 
> I also pulled the NVMe card and tried that config.  No change.
> 
> I am starting to conclude that the problem lies deep in the  motherboard
> someplace, and the GPU seems very suspect.
> 
> I am now left with a very new looking paper weight.  Sigh.  I guess I could
> sell it for parts?
> 
> Dwain
> 
> 
> On Tue, Feb 18, 2025 at 3:20 PM Joseph Mack NA3T <jmack at trilug.org> wrote:
> 
> > On Tue, 18 Feb 2025, Dwain Sims wrote:
> >
> > > No beeps.  That is a bad sign!
> >
> > yes. that means the BIOS didn't start checking the hardware.
> >
> > is the battery OK (not swollen, charged, pull out the battery and run off
> > the power cable)?
> >
> > try swapping the memory sticks around. In some machines, the BIOS will not
> > run if the memory is dead. In others the BIOS makes a loud beep if there's
> > no memory.
> >
> > Does the ON button flash when you press it?
> >
> > Joe
> >
> > --
> > Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> > Don't upgrade a working machine - it won't work any
> > better - it could work worse; it may not work at all.
> > Homepage http://www.austintek.com/ It's GNU/Linux!
> >
> >
> -- 
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