scbs29 wrote:
On Fri, 20 Jul 2018 13:12:19 -0400, G Ross wrote:

scbs29 wrote:
Hello all
Literally between switching off at night and restarting next morning I


Thanks for the advice.
Memtest86 gave a clean bill of health.
This morning the pc booted as far as the login screen then when I
entered my password it rebooted and froze at the boot splash.
I then tried unpluggiing all except the system disk and now when I try
to boot tne pc emits a continuous high pitched beep and doesnt get to
the boot splash.
I think I need professional help.


Leaking caps ?

Could be inside the ATX PSU, or
could be on the motherboard around
the CPU socket area or next to the
DIMM slots.

My thinking is, the machine kinda works
when one of four cores is in usage. The BIOS
probably uses only one core. When handed off
to the OS and four cores are used, it becomes
unstable because of the extra electrical
load.

That could be a problem with VCore regulator,
VDimm regulator, or the ATX PSU.

Your errors smack of memory errors, yet the
memtest86+ test finished. The memtest86+
test can be run with one core or four cores.
The latest version support multi-core operation,
and maybe that will add enough stress to tip
over memtest.

http://www.memtest.org/

V5.01

Added experimental SMT support up to 32 cores
(Press F2 to enable at startup)

HTH,
Paul