This is an older HP desktop. It has a three disk ZFS RAIDZ1 and is connected to an LCD display (it's not headless). This dmesg indicates a few rough spots but the machine hasn't yet fallen down in any serious way.
Code:
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FreeBSD 11.2-RELEASE-p9 #0: Tue Feb 5 15:30:36 UTC 2019
root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
FreeBSD clang version 6.0.0 (tags/RELEASE_600/final 326565) (based on LLVM 6.0.0)
VT(vga): resolution 640x480
CPU: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz (2992.54-MHz K8-class CPU)
Origin="GenuineIntel" Id=0x1067a Family=0x6 Model=0x17 Stepping=10
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0xc08e3fd<SSE3,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,XSAVE,OSXSAVE>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
VT-x: (disabled in BIOS) HLT,PAUSE
TSC: P-state invariant, performance statistics
real memory = 6446645248 (6148 MB)
avail memory = 6046457856 (5766 MB)
Event timer "LAPIC" quality 100
ACPI APIC Table: <COMPAQ EAGLLAKE>
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s)
Firmware Warning (ACPI): Optional FADT field Pm2ControlBlock has valid Address but zero Length: 0x0000000000000050/0x0 (20171214/tbfadt-796)
Firmware Warning (ACPI): Invalid length for FADT/Pm2ControlBlock: 0, using default 8 (20171214/tbfadt-850)
ioapic0: Changing APIC ID to 1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
SMP: AP CPU #1 Launched!
Timecounter "TSC-low" frequency 1496267662 Hz quality 1000
random: entropy device external interface
kbd1 at kbdmux0
netmap: loaded module
module_register_init: MOD_LOAD (vesa, 0xffffffff80ff4580, 0) error 19
nexus0
vtvga0: <VT VGA driver> on motherboard
cryptosoft0: <software crypto> on motherboard
acpi0: <HPQOEM SLIC-BPC> on motherboard
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
attimer0: <AT timer> port 0x40-0x43 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
atrtc0: <AT realtime clock> port 0x70-0x71 irq 8 on acpi0
atrtc0: registered as a time-of-day clock, resolution 1.000000s
Event timer "RTC" frequency 32768 Hz quality 0
hpet1: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Event timer "HPET" frequency 14318180 Hz quality 550
Event timer "HPET1" frequency 14318180 Hz quality 440
Event timer "HPET2" frequency 14318180 Hz quality 440
Event timer "HPET3" frequency 14318180 Hz quality 440
Event timer "HPET4" frequency 14318180 Hz quality 440
Event timer "HPET5" frequency 14318180 Hz quality 440
Event timer "HPET6" frequency 14318180 Hz quality 440
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
device_attach: hpet0 attach returned 12
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xf808-0xf80b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
Firmware Error (ACPI): \134_SB.PCI0._OSC: Excess arguments - ASL declared 5, ACPI requires 4 (20171214/nsarguments-309)
Firmware Error (ACPI): Failure creating [\134_SB.PCI0._OSC.CAPD], AE_ALREADY_EXISTS (20171214/dsfield-344)
ACPI Error: Method parse/execution failed \134_SB.PCI0._OSC, AE_ALREADY_EXISTS (20171214/psparse-677)
pcib0: _OSC failed: AE_ALREADY_EXISTS
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x2230-0x2237 mem 0xf0000000-0xf03fffff,0xe0000000-0xefffffff irq 16 at device 2.0 on pci0
agp0: <Intel Q45 SVGA controller> on vgapci0
agp0: aperture size is 256M, detected 32764k stolen memory
vgapci0: Boot video device
vgapci1: <VGA-compatible display> mem 0xf0400000-0xf04fffff at device 2.1 on pci0
pci0: <simple comms> at device 3.0 (no driver attached)
uart2: <4 Series Chipset Serial KT Controller> port 0x2248-0x224f mem 0xf0524000-0xf0524fff irq 17 at device 3.3 on pci0
em0: <Intel(R) PRO/1000 Network Connection 7.6.1-k> port 0x2100-0x211f mem 0xf0500000-0xf051ffff,0xf0525000-0xf0525fff irq 19 at device 25.0 on pci0
em0: Using an MSI interrupt
em0: Ethernet address: d8:d3:85:75:2e:e4
em0: netmap queues/slots: TX 1/1024, RX 1/1024
uhci0: <UHCI (generic) USB controller> port 0x2120-0x213f irq 20 at device 26.0 on pci0
usbus0 on uhci0
usbus0: 12Mbps Full Speed USB v1.0
uhci1: <UHCI (generic) USB controller> port 0x2140-0x215f irq 21 at device 26.1 on pci0
usbus1 on uhci1
usbus1: 12Mbps Full Speed USB v1.0
uhci2: <UHCI (generic) USB controller> port 0x2160-0x217f irq 22 at device 26.2 on pci0
usbus2 on uhci2
usbus2: 12Mbps Full Speed USB v1.0
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xf0526800-0xf0526bff irq 22 at device 26.7 on pci0
usbus3: EHCI version 1.0
usbus3 on ehci0
usbus3: 480Mbps High Speed USB v2.0
hdac0: <Intel 82801JD HDA Controller> mem 0xf0520000-0xf0523fff irq 21 at device 27.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pcib1: [GIANT-LOCKED]
pcib2: <ACPI PCI-PCI bridge> irq 20 at device 28.4 on pci0
pcib2: [GIANT-LOCKED]
uhci3: <UHCI (generic) USB controller> port 0x2180-0x219f irq 20 at device 29.0 on pci0
usbus4 on uhci3
usbus4: 12Mbps Full Speed USB v1.0
uhci4: <UHCI (generic) USB controller> port 0x21a0-0x21bf irq 21 at device 29.1 on pci0
usbus5 on uhci4
usbus5: 12Mbps Full Speed USB v1.0
uhci5: <UHCI (generic) USB controller> port 0x21c0-0x21df irq 22 at device 29.2 on pci0
usbus6 on uhci5
usbus6: 12Mbps Full Speed USB v1.0
ehci1: <EHCI (generic) USB 2.0 controller> mem 0xf0526c00-0xf0526fff irq 20 at device 29.7 on pci0
usbus7: EHCI version 1.0
usbus7 on ehci1
usbus7: 480Mbps High Speed USB v2.0
pcib3: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci1: <ACPI PCI bus> on pcib3
ral0: <Ralink Technology RT2561S> mem 0xf0600000-0xf0607fff irq 20 at device 0.0 on pci1
ral0: MAC/BBP RT2561C, RF RT2527
re0: <RealTek 8169/8169S/8169SB(L)/8110S/8110SB(L) Gigabit Ethernet> port 0x1100-0x11ff mem 0xf0608000-0xf06080ff irq 22 at device 2.0 on pci1
re0: Chip rev. 0x04000000
re0: MAC rev. 0x00000000
miibus0: <MII bus> on re0
rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0
rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow
re0: Using defaults for TSO: 65518/35/2048
re0: Ethernet address: 00:1e:2a:39:83:14
re0: netmap queues/slots: TX 1/256, RX 1/256
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
ahci0: <AHCI SATA controller> port 0x2250-0x2257,0x2268-0x226b,0x2258-0x225f,0x226c-0x226f,0x21e0-0x21ff mem 0xf0526000-0xf05267ff irq 18 at device 31.2 on pci0
ahci0: AHCI v1.20 with 6 3Gbps ports, Port Multiplier not supported
ahcich0: <AHCI channel> at channel 0 on ahci0
ahcich1: <AHCI channel> at channel 1 on ahci0
ahcich2: <AHCI channel> at channel 2 on ahci0
ahcich3: <AHCI channel> at channel 3 on ahci0
ahcich4: <AHCI channel> at channel 4 on ahci0
acpi_button0: <Power Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
ppc0: <Parallel port> port 0x378-0x37f,0x778-0x77d irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
orm0: <ISA Option ROMs> at iomem 0xc0000-0xcc7ff,0xe5800-0xeffff on isa0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
Timecounters tick every 1.000 msec
hdacc0: <Realtek ALC662 HDA CODEC> at cad 0 on hdac0
hdaa0: <Realtek ALC662 Audio Function Group> at nid 1 on hdacc0
pcm0: <Realtek ALC662 (Rear Analog)> at nid 20 and 24 on hdaa0
pcm1: <Realtek ALC662 (Analog)> at nid 21 and 25 on hdaa0
pcm2: <Realtek ALC662 (Front Analog Headphones)> at nid 27 on hdaa0
ugen7.1: <Intel EHCI root HUB> at usbus7
ugen6.1: <Intel UHCI root HUB> at usbus6
uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus7
ugen5.1: <Intel UHCI root HUB> at usbus5
uhub1: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus6
uhub2: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus5
ugen4.1: <Intel UHCI root HUB> at usbus4
ugen3.1: <Intel EHCI root HUB> at usbus3
uhub3: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus4
uhub4: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus3
ugen1.1: <Intel UHCI root HUB> at usbus1
ugen2.1: <Intel UHCI root HUB> at usbus2
uhub5: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus1
uhub6: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus2
ugen0.1: <Intel UHCI root HUB> at usbus0
uhub7: <Intel UHCI root HUB, class 9/0, rev 1.00/1.00, addr 1> on usbus0
ada0 at ahcich1 bus 0 scbus1 target 0 lun 0
ada0: <Hitachi HDS721050CLA362 JP2OA50E> ATA8-ACS SATA 2.x device
cd0 at ahcich0 bus 0 scbus0 target 0 lun 0
cd0: <ATAPI iHAS124 F CL9M> Removable CD-ROM SCSI device
cd0: Serial Number 3524728 2C8724512979
cd0: 150.000MB/s transfers (SATA 1.x, UDMA6, ATAPI 12bytes, PIO 8192bytes)
cd0: Attempt to query device size failed: NOT READY, Medium not present - tray closed
ada0: Serial Number JP1572JE0L1BSK
ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 476940MB (976773168 512 byte sectors)
ada1 at ahcich2 bus 0 scbus2 target 0 lun 0
ada1: <Hitachi HDS721050CLA362 JP2OA50E> ATA8-ACS SATA 2.x device
ada1: Serial Number JP1572JE0NYJ8K
ada1: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada1: Command Queueing enabled
ada1: 476940MB (976773168 512 byte sectors)
ada2 at ahcich3 bus 0 scbus3 target 0 lun 0
ada2: <TOSHIBA DT01ACA050 MS1OA7C0> ACS-2 ATA SATA 3.x device
ada2: Serial Number 8551L8KAS
ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes)
ada2: Command Queueing enabled
ada2: 476940MB (976773168 512 byte sectors)
Trying to mount root from zfs:zroot/ROOT/default []...
uhub1: 2 ports with 2 removable, self powered
Root mount waiting for: usbus7 usbus5 usbus4 usbus3 usbus2 usbus1 usbus0
uhub2: 2 ports with 2 removable, self powered
uhub3: 2 ports with 2 removable, self powered
uhub5: 2 ports with 2 removable, self powered
uhub6: 2 ports with 2 removable, self powered
uhub7: 2 ports with 2 removable, self powered
Root mount waiting for: usbus7 usbus3
Root mount waiting for: usbus7 usbus3
uhub0: 6 ports with 6 removable, self powered
uhub4: 6 ports with 6 removable, self powered
ugen1.2: <PixArt USB Optical Mouse> at usbus1
ugen1.3: <vendor 0x04f3 product 0x0103> at usbus1
ukbd0 on uhub5
ukbd0: <vendor 0x04f3 product 0x0103, class 0/0, rev 2.00/1.07, addr 3> on usbus1
kbd2 at ukbd0
random: unblocking device.
re0: link state changed to DOWN
ums0 on uhub5
ums0: <PixArt USB Optical Mouse, class 0/0, rev 2.00/1.00, addr 2> on usbus1
ums0: 3 buttons and [XYZ] coordinates ID=0
uhid0 on uhub5
uhid0: <vendor 0x04f3 product 0x0103, class 0/0, rev 2.00/1.07, addr 3> on usbus1
pflog0: promiscuous mode enabled
re0: link state changed to UP
em0: link state changed to UP
info: [drm] Initialized drm 1.1.0 20060810
drmn0: <Intel Q45/Q43> on vgapci0
info: [drm] MTRR allocation failed. Graphics performance may suffer.
intel_iicbb0 on drmn0
iicbus0: <Philips I2C bus> on iicbb0 addr 0xff
iic0: <I2C generic I/O> on iicbus0
iicbus1: <Philips I2C bus> on intel_gmbus0
iic1: <I2C generic I/O> on iicbus1
intel_iicbb1 on drmn0
iicbus2: <Philips I2C bus> on iicbb1 addr 0xff
iic2: <I2C generic I/O> on iicbus2
iicbus3: <Philips I2C bus> on intel_gmbus1
iic3: <I2C generic I/O> on iicbus3
intel_iicbb2 on drmn0
iicbus4: <Philips I2C bus> on iicbb2 addr 0xff
iic4: <I2C generic I/O> on iicbus4
iicbus5: <Philips I2C bus> on intel_gmbus2
iic5: <I2C generic I/O> on iicbus5
intel_iicbb3 on drmn0
iicbus6: <Philips I2C bus> on iicbb3 addr 0xff
iic6: <I2C generic I/O> on iicbus6
iicbus7: <Philips I2C bus> on intel_gmbus3
iic7: <I2C generic I/O> on iicbus7
intel_iicbb4 on drmn0
iicbus8: <Philips I2C bus> on iicbb4 addr 0xff
iic8: <I2C generic I/O> on iicbus8
iicbus9: <Philips I2C bus> on intel_gmbus4
iic9: <I2C generic I/O> on iicbus9
intel_iicbb5 on drmn0
iicbus10: <Philips I2C bus> on iicbb5 addr 0xff
iic10: <I2C generic I/O> on iicbus10
iicbus11: <Philips I2C bus> on intel_gmbus5
iic11: <I2C generic I/O> on iicbus11
info: [drm] MSI enabled 1 message(s)
info: [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
info: [drm] Driver supports precise vblank timestamp query.
drm_iic_dp_aux0 on drmn0
drmn0: taking over the fictitious range 0xe0000000-0xf0000000
info: [drm] Connector VGA-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.VGA-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector HDMI-A-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.HDMI-A-1
info: [drm] - kern.vt.fb.default_mode
info: [drm] Connector DP-1: get mode from tunables:
info: [drm] - kern.vt.fb.modes.DP-1
info: [drm] - kern.vt.fb.default_mode
fbd0 on drmn0
VT: Replacing driver "vga" with new "fb".
info: [drm] Initialized i915 1.6.0 20080730 for drmn0 on minor 0