This is current/amd64 on a Thinkpad T400 (full dmesg and sysctl hw below). It provides various sensors reporting temperatures, but I don't really know what temperatures these are.
$ sysctl hw | grep temp hw.sensors.cpu0.temp0=39.00 degC hw.sensors.acpithinkpad0.temp0=48.00 degC hw.sensors.acpithinkpad0.temp1=41.00 degC hw.sensors.acpithinkpad0.temp2=34.00 degC hw.sensors.acpithinkpad0.temp4=25.00 degC hw.sensors.acpithinkpad0.temp6=25.00 degC hw.sensors.acpitz0.temp0=48.00 degC (zone temperature) hw.sensors.acpitz1.temp0=44.00 degC (zone temperature) hw.sensors.aps0.temp0=255.00 degC hw.sensors.aps0.temp1=255.00 degC By cpu(4), the hw.sensors.cpu0.temp0 is the CPU temperatue (duh). Is there some documentation of what exactly the others are? acpitz(4) and acpithinkpad(4) don't really say. (The aps(4) temperatures are "unused".) Jan OpenBSD 7.0-current (GENERIC.MP) #104: Thu Nov 18 09:10:05 MST 2021 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 8461684736 (8069MB) avail mem = 8189267968 (7809MB) random: good seed from bootblocks mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe0010 (80 entries) bios0: vendor LENOVO version "7UET94WW (3.24 )" date 10/17/2012 bios0: LENOVO 64741EG acpi0 at bios0: ACPI 3.0 acpi0: sleep states S0 S3 S4 S5 acpi0: tables DSDT FACP SSDT ECDT APIC MCFG HPET SLIC BOOT ASF! SSDT TCPA DMAR SSDT SSDT SSDT acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP0(S4) EXP1(S4) EXP2(S4) EXP3(S4) EXP4(S4) PCI1(S4) USB0(S3) USB3(S3) USB5(S3) EHC0(S3) EHC1(S3) HDEF(S4) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpiec0 at acpi0 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz, 2261.33 MHz, 06-17-06 cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,NXE,LONG,LAHF,PERF,SENSOR,MELTDOWN cpu0: 3MB 64b/line 8-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges cpu0: apic clock running at 266MHz cpu0: mwait min=64, max=64, C-substates=0.2.2.2.2.1.3, IBE cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz, 2261.01 MHz, 06-17-06 cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,NXE,LONG,LAHF,PERF,SENSOR,MELTDOWN cpu1: 3MB 64b/line 8-way L2 cache cpu1: smt 0, core 1, package 0 ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins, remapped acpimcfg0 at acpi0 acpimcfg0: addr 0xe0000000, bus 0-63 acpihpet0 at acpi0: 14318179 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (AGP_) acpiprt2 at acpi0: bus 2 (EXP0) acpiprt3 at acpi0: bus 3 (EXP1) acpiprt4 at acpi0: bus -1 (EXP2) acpiprt5 at acpi0: bus 5 (EXP3) acpiprt6 at acpi0: bus 13 (EXP4) acpiprt7 at acpi0: bus 21 (PCI1) acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: SLPB acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 acpicmos0 at acpi0 tpm0 at acpi0 TPM_ 1.2 (TIS) addr 0xfed40000/0x5000, device 0x10208086 rev 0x6 acpibat0 at acpi0: BAT0 model "92P1137" serial 57 type LION oem "SANYO" acpiac0 at acpi0: AC unit online acpithinkpad0 at acpi0: version 1.0 "PNP0C14" at acpi0 not configured acpicpu0 at acpi0: !C3(100@57 mwait.3@0x30), !C2(500@1 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpicpu1 at acpi0: !C3(100@57 mwait.3@0x30), !C2(500@1 mwait.1@0x10), C1(1000@1 mwait.1), PSS acpipwrres0 at acpi0: PUBS, resource for USB0, USB3, USB5, EHC0, EHC1 acpitz0 at acpi0: critical temperature is 127 degC acpitz1 at acpi0: critical temperature is 100 degC acpidock0 at acpi0: GDCK not docked (0) acpivideo0 at acpi0: VID_ acpivout0 at acpivideo0: LCD0 acpivideo1 at acpi0: VID_ cpu0: Enhanced SpeedStep 2261 MHz: speeds: 2267, 2266, 1600, 800 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel GM45 Host" rev 0x07 inteldrm0 at pci0 dev 2 function 0 "Intel GM45 Video" rev 0x07 drm0 at inteldrm0 intagp0 at inteldrm0 agp0 at intagp0: aperture at 0xd0000000, size 0x10000000 inteldrm0: apic 1 int 16, GM45, gen 4 "Intel GM45 Video" rev 0x07 at pci0 dev 2 function 1 not configured "Intel GM45 HECI" rev 0x07 at pci0 dev 3 function 0 not configured em0 at pci0 dev 25 function 0 "Intel ICH9 IGP M AMT" rev 0x03: msi, address 00:1c:25:9b:0a:23 uhci0 at pci0 dev 26 function 0 "Intel 82801I USB" rev 0x03: apic 1 int 20 uhci1 at pci0 dev 26 function 1 "Intel 82801I USB" rev 0x03: apic 1 int 21 uhci2 at pci0 dev 26 function 2 "Intel 82801I USB" rev 0x03: apic 1 int 22 ehci0 at pci0 dev 26 function 7 "Intel 82801I USB" rev 0x03: apic 1 int 23 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 82801I HD Audio" rev 0x03: msi azalia0: codecs: Conexant CX20561 audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 82801I PCIE" rev 0x03: msi pci1 at ppb0 bus 2 ppb1 at pci0 dev 28 function 1 "Intel 82801I PCIE" rev 0x03: msi pci2 at ppb1 bus 3 iwn0 at pci2 dev 0 function 0 "Intel WiFi Link 5300" rev 0x00: msi, MIMO 3T3R, MoW, address 00:21:6a:01:9f:ce ppb2 at pci0 dev 28 function 3 "Intel 82801I PCIE" rev 0x03: msi pci3 at ppb2 bus 5 ppb3 at pci0 dev 28 function 4 "Intel 82801I PCIE" rev 0x03: msi pci4 at ppb3 bus 13 uhci3 at pci0 dev 29 function 0 "Intel 82801I USB" rev 0x03: apic 1 int 16 uhci4 at pci0 dev 29 function 1 "Intel 82801I USB" rev 0x03: apic 1 int 17 uhci5 at pci0 dev 29 function 2 "Intel 82801I USB" rev 0x03: apic 1 int 18 ehci1 at pci0 dev 29 function 7 "Intel 82801I USB" rev 0x03: apic 1 int 19 usb1 at ehci1: USB revision 2.0 uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb4 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0x93 pci5 at ppb4 bus 21 cbb0 at pci5 dev 0 function 0 "Ricoh 5C476 CardBus" rev 0xba: apic 1 int 16 "Ricoh 5C832 Firewire" rev 0x04 at pci5 dev 0 function 1 not configured sdhc0 at pci5 dev 0 function 2 "Ricoh 5C822 SD/MMC" rev 0x21: apic 1 int 18 sdhc0: SDHC 1.0, 33 MHz base clock sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed "Ricoh 5C843 MMC" rev 0x11 at pci5 dev 0 function 3 not configured "Ricoh 5C592 Memory Stick" rev 0x11 at pci5 dev 0 function 4 not configured "Ricoh 5C852 xD" rev 0x11 at pci5 dev 0 function 5 not configured cardslot0 at cbb0 slot 0 flags 0 cardbus0 at cardslot0: bus 22 device 0 cacheline 0x10, lattimer 0xb0 pcmcia0 at cardslot0 pcib0 at pci0 dev 31 function 0 "Intel 82801IEM LPC" rev 0x03 ahci0 at pci0 dev 31 function 2 "Intel 82801I AHCI" rev 0x03: msi, AHCI 1.2 ahci0: port 0: 3.0Gb/s scsibus1 at ahci0: 32 targets sd0 at scsibus1 targ 0 lun 0: <ATA, OCZ-AGILITY3, 2.15> naa.5e83a97fc6465c9d sd0: 114473MB, 512 bytes/sector, 234441648 sectors, thin ichiic0 at pci0 dev 31 function 3 "Intel 82801I SMBus" rev 0x03: apic 1 int 23 iic0 at ichiic0 usb2 at uhci0: USB revision 1.0 uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci1: USB revision 1.0 uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci2: USB revision 1.0 uhub4 at usb4 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb5 at uhci3: USB revision 1.0 uhub5 at usb5 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb6 at uhci4: USB revision 1.0 uhub6 at usb6 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb7 at uhci5: USB revision 1.0 uhub7 at usb7 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 irq 1 irq 12 pckbd0 at pckbc0 (kbd slot) wskbd0 at pckbd0: console keyboard pms0 at pckbc0 (aux slot) wsmouse0 at pms0 mux 0 wsmouse1 at pms0 mux 0 pms0: Synaptics touchpad, firmware 7.0, 0x1c0b1 0xb00000 0x0 0xd04791 0x20000 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 aps0 at isa0 port 0x1600/31 vmm0 at mainbus0: VMX (using slow L1TF mitigation) dt: 445 probes ugen0 at uhub3 port 1 "AuthenTec Fingerprint Sensor" rev 2.00/17.03 addr 2 ugen1 at uhub3 port 2 "Lenovo Computer Corp ThinkPad Bluetooth with Enhanced Data Rate II" rev 2.00/3.99 addr 3 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (7e642c4522750e51.a) swap on sd0b dump on sd0b inteldrm0: 1280x800, 32bpp wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0 wsdisplay0: screen 1-5 added (std, vt100 emulation) hw.machine=amd64 hw.model=Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz hw.ncpu=2 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=sd0:7e642c4522750e51 hw.diskcount=1 hw.sensors.cpu0.temp0=39.00 degC hw.sensors.acpibtn0.indicator0=On (lid open) hw.sensors.acpibat0.volt0=11.10 VDC (voltage) hw.sensors.acpibat0.volt1=12.44 VDC (current voltage) hw.sensors.acpibat0.power0=0.00 W (rate) hw.sensors.acpibat0.watthour0=35.86 Wh (last full capacity) hw.sensors.acpibat0.watthour1=1.79 Wh (warning capacity) hw.sensors.acpibat0.watthour2=0.20 Wh (low capacity) hw.sensors.acpibat0.watthour3=35.77 Wh (remaining capacity), OK hw.sensors.acpibat0.watthour4=48.84 Wh (design capacity) hw.sensors.acpibat0.raw0=0 (battery idle), OK hw.sensors.acpiac0.indicator0=On (power supply) hw.sensors.acpithinkpad0.temp0=48.00 degC hw.sensors.acpithinkpad0.temp1=41.00 degC hw.sensors.acpithinkpad0.temp2=34.00 degC hw.sensors.acpithinkpad0.temp4=25.00 degC hw.sensors.acpithinkpad0.temp6=25.00 degC hw.sensors.acpithinkpad0.fan0=1974 RPM hw.sensors.acpithinkpad0.indicator0=Off (port replicator), UNKNOWN hw.sensors.acpitz0.temp0=48.00 degC (zone temperature) hw.sensors.acpitz1.temp0=44.00 degC (zone temperature) hw.sensors.acpidock0.indicator0=Off (not docked), UNKNOWN hw.sensors.aps0.temp0=255.00 degC hw.sensors.aps0.temp1=255.00 degC hw.sensors.aps0.indicator0=Off (Keyboard Active) hw.sensors.aps0.indicator1=Off (Mouse Active) hw.sensors.aps0.indicator2=On (Lid Open) hw.sensors.aps0.raw0=494 (X_ACCEL) hw.sensors.aps0.raw1=489 (Y_ACCEL) hw.sensors.aps0.raw2=494 (X_VAR) hw.sensors.aps0.raw3=488 (Y_VAR) hw.cpuspeed=800 hw.setperf=0 hw.vendor=LENOVO hw.product=64741EG hw.version=ThinkPad T400 hw.serialno=L3AKP2N hw.uuid=1a45f581-4a2c-11cb-9b7b-f4feee40eb88 hw.physmem=8461684736 hw.usermem=8441507840 hw.ncpufound=2 hw.allowpowerdown=1 hw.perfpolicy=manual hw.smt=0 hw.ncpuonline=2 hw.power=0