我的系统只能识别 1 个 CPU 核心和 1 个线程（我也遇到了很多问题，甚至无法让 Ubuntu 顺利加载，不会出现多次停顿）。在任何负载下，操作系统的运行都很糟糕。
Here are the system specs:
OS: Ubuntu 19.04
Motherboard: Gigabyte Z390 AORUS PRO WIFI
RAM: 16GB
Storage: ATA Samsung SSD 860; ATA WDC WD10EZEX
$ sudo lshw -C cpu
*-cpu
description: CPU
product: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
vendor: Intel Corp.
physical id: 47
bus info: cpu@0
version: Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz
serial: To Be Filled By O.E.M.
slot: U3E1
size: 3783MHz
capacity: 4700MHz
width: 64 bits
clock: 100MHz
capabilities: x86-64 fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d cpufreq
configuration: cores=6 enabledcores=6 threads=12
$ sudo lshw -C memory
*-firmware
description: BIOS
vendor: American Megatrends Inc.
physical id: 0
version: F10
date: 06/05/2019
size: 64KiB
capacity: 15MiB
capabilities: pci upgrade shadowing cdboot bootselect socketedrom edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int14serial int17printer acpi usb biosbootspecification uefi
*-memory
description: System Memory
physical id: 3a
slot: System board or motherboard
size: 16GiB
*-bank:0
description: DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
product: F4-2400C15-4GVR
vendor: Fujitsu
physical id: 0
serial: 00000000
slot: ChannelA-DIMM0
size: 4GiB
width: 64 bits
clock: 2133MHz (0.5ns)
*-bank:1
description: DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
product: F4-2400C15-4GVR
vendor: Fujitsu
physical id: 1
serial: 00000000
slot: ChannelA-DIMM1
size: 4GiB
width: 64 bits
clock: 2133MHz (0.5ns)
*-bank:2
description: DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
product: F4-2400C15-4GVR
vendor: Fujitsu
physical id: 2
serial: 00000000
slot: ChannelB-DIMM0
size: 4GiB
width: 64 bits
clock: 2133MHz (0.5ns)
*-bank:3
description: DIMM DDR4 Synchronous 2133 MHz (0.5 ns)
product: F4-2400C15-4GVR
vendor: Fujitsu
physical id: 3
serial: 00000000
slot: ChannelB-DIMM1
size: 4GiB
width: 64 bits
clock: 2133MHz (0.5ns)
*-cache:0
description: L1 cache
physical id: 44
slot: L1 Cache
size: 384KiB
capacity: 384KiB
capabilities: synchronous internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 45
slot: L2 Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 46
slot: L3 Cache
size: 12MiB
capacity: 12MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-memory UNCLAIMED
description: RAM memory
product: Cannon Lake PCH Shared SRAM
vendor: Intel Corporation
physical id: 14.2
bus info: pci@0000:00:14.2
version: 10
width: 64 bits
clock: 33MHz (30.3ns)
capabilities: pm bus_master cap_list
configuration: latency=0
resources: memory:5123a000-5123bfff memory:51240000-51240fff
答案1
检查当前 BIOS 版本。在terminal做sudo dmidecode -s bios-version。如果不是 2019 年 6 月 27 日的 F10 版本，请转到https://www.gigabyte.com/us/Motherboard/Z390-AORUS-PRO-WIFI-rev-10/support#support-dl-bios获取最新版本并安装它。
注意：您可能需要将 BIOS 重置为主板的出厂默认设置才能查看所有核心。
更新＃1：
将 BIOS 从 F7 更新到 F10。问题仍未解决。
sudo lshw -C cpu表明它看到了全部 6 个核心。也无法从 19.04 Ubuntu Live DVD 启动。
http://forum.gigabyte.us/thread/7085/aorus-windows-ubuntu-install-issues表示 Ubuntu 可能无法在此主板上运行。