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Subject: Re: [SOLVED] Only one CPU core detected on Supermicro E3-1240 v3
From: =?utf-8?Q?Mari=C3=A1n_=C4=8Cern=C3=BD?= <majo-freebsd-stable@cerny.sk>
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Date: Fri, 27 Sep 2013 15:12:56 +0200
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Marian Cerny wrote:

> I am trying to install FreeBSD 9.2-RC4 on Supermicro server with Intel =
Xeon E3-1240 v3 processor. The processor has 4 cores with 8 threads. =
However only one core is detected (with two threads):
>=20
> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
> FreeBSD/SMP: 1 package(s) x 1 core(s) x 2 SMT threads
> cpu0 (BSP): APIC ID:  0
> cpu1 (AP): APIC ID:  1
>=20
> The motherboard is Supermicro X10SLM-F. All cores are enabled in BIOS =
and the latest firmware is installed (version 1.1a, Build Date =
08/20/2013).

I have contacted Supermicro support and they have advised me to flash =
the latest BIOS but set the JPME2 jumper (Manufacturing Mode Select) and =
move it back after flashing. Now the all the cores are detected:

FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 SMT threads

Marian=