Hi all, here's sysctl extracts from Rise iDragon, IDT WinChip C6/2A running OpenBSD 7.3. All seems quite stable.
P.S. Although Rise CPU is detected dmesg shows only generic info about it: cpu0: RiseRiseRise (586-class) 201 MHz, 05-02-01 cpu0: FPU,TSC,MMX compare it with IDT's CPU: cpu0: IDT WinChip 2-3D ("CentaurHauls" 586-class) 201 MHz, 05-08-07 cpu0: FPU,DE,TSC,MSR,MCE,MMX,3DNOW
kern.ostype=OpenBSD kern.osrelease=7.3 kern.osrevision=202304 kern.osversion=GENERIC#660 hw.machine=i386 hw.model=RiseRiseRise (586-class) hw.ncpu=1 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=cd0:,wd0:5b03b3458d3da6a7,fd0: hw.diskcount=3 hw.sensors.lm0.temp0=32.00 degC hw.sensors.lm0.temp1=30.50 degC hw.sensors.lm0.temp2=25.00 degC hw.sensors.lm0.fan0=5443 RPM hw.sensors.lm0.volt0=2.05 VDC (VCore A) hw.sensors.lm0.volt1=3.39 VDC (VCore B) hw.sensors.lm0.volt2=3.41 VDC (+3.3V) hw.sensors.lm0.volt3=5.05 VDC (+5V) hw.sensors.lm0.volt4=12.28 VDC (+12V) hw.sensors.lm0.volt5=-11.79 VDC (-12V) hw.sensors.lm0.volt6=-0.02 VDC (-5V) hw.cpuspeed=226 hw.physmem=536297472 hw.usermem=536281088 hw.ncpufound=1 hw.allowpowerdown=1 hw.ncpuonline=1 hw.power=1 machdep.console_device=ttyC0 machdep.bios.diskinfo.0=bootdev = 0xa0000202, cylinders = 80, heads = 2, sectors = 18 machdep.bios.diskinfo.128=bootdev = 0xa0000200, cylinders = 1024, heads = 255, sectors = 63 machdep.bios.cksumlen=1 machdep.allowaperture=0 machdep.cpuvendor=RiseRiseRise machdep.cpuid=0x521 machdep.cpufeature=0x800011 machdep.kbdreset=0 machdep.osfxsr=0 machdep.sse=0 machdep.sse2=0 machdep.xcrypt=0 machdep.lidaction=1 machdep.forceukbd=0
kern.ostype=OpenBSD kern.osrelease=7.3 kern.osrevision=202304 kern.osversion=GENERIC#660 hw.machine=i386 hw.model=IDT WinChip 2-3D ("CentaurHauls" 586-class) hw.ncpu=1 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=cd0:,wd0:5b03b3458d3da6a7,fd0: hw.diskcount=3 hw.sensors.lm0.temp0=34.00 degC hw.sensors.lm0.temp1=32.50 degC hw.sensors.lm0.temp2=25.00 degC hw.sensors.lm0.fan0=5443 RPM hw.sensors.lm0.volt0=3.55 VDC (VCore A) hw.sensors.lm0.volt1=3.57 VDC (VCore B) hw.sensors.lm0.volt2=3.58 VDC (+3.3V) hw.sensors.lm0.volt3=4.97 VDC (+5V) hw.sensors.lm0.volt4=12.34 VDC (+12V) hw.sensors.lm0.volt5=-11.90 VDC (-12V) hw.sensors.lm0.volt6=-0.02 VDC (-5V) hw.cpuspeed=201 hw.physmem=536297472 hw.usermem=536281088 hw.ncpufound=1 hw.allowpowerdown=1 hw.ncpuonline=1 hw.power=1 machdep.console_device=ttyC0 machdep.bios.diskinfo.0=bootdev = 0xa0000202, cylinders = 80, heads = 2, sectors = 18 machdep.bios.diskinfo.128=bootdev = 0xa0000200, cylinders = 1024, heads = 255, sectors = 63 machdep.bios.cksumlen=1 machdep.allowaperture=0 machdep.cpuvendor=CentaurHauls machdep.cpuid=0x587 machdep.cpufeature=0x8000b5 machdep.kbdreset=0 machdep.osfxsr=0 machdep.sse=0 machdep.sse2=0 machdep.xcrypt=0 machdep.lidaction=1 machdep.forceukbd=0
kern.ostype=OpenBSD kern.osrelease=7.3 kern.osrevision=202304 kern.osversion=GENERIC#660 hw.machine=i386 hw.model=IDT WinChip C6 ("CentaurHauls" 586-class) hw.ncpu=1 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=cd0:,wd0:5b03b3458d3da6a7,fd0: hw.diskcount=3 hw.sensors.lm0.temp0=34.00 degC hw.sensors.lm0.temp1=33.00 degC hw.sensors.lm0.temp2=25.00 degC hw.sensors.lm0.fan0=5400 RPM hw.sensors.lm0.volt0=3.57 VDC (VCore A) hw.sensors.lm0.volt1=3.58 VDC (VCore B) hw.sensors.lm0.volt2=3.62 VDC (+3.3V) hw.sensors.lm0.volt3=4.97 VDC (+5V) hw.sensors.lm0.volt4=12.34 VDC (+12V) hw.sensors.lm0.volt5=-11.96 VDC (-12V) hw.sensors.lm0.volt6=-0.02 VDC (-5V) hw.cpuspeed=201 hw.physmem=536297472 hw.usermem=536281088 hw.ncpufound=1 hw.allowpowerdown=1 hw.ncpuonline=1 hw.power=1 machdep.console_device=ttyC0 machdep.bios.diskinfo.0=bootdev = 0xa0000202, cylinders = 80, heads = 2, sectors = 18 machdep.bios.diskinfo.128=bootdev = 0xa0000200, cylinders = 1024, heads = 255, sectors = 63 machdep.bios.cksumlen=1 machdep.allowaperture=0 machdep.cpuvendor=CentaurHauls machdep.cpuid=0x541 machdep.cpufeature=0x8000a5 machdep.kbdreset=0 machdep.osfxsr=0 machdep.sse=0 machdep.sse2=0 machdep.xcrypt=0 machdep.lidaction=1 machdep.forceukbd=0