Currently, this brand new X4200 M2 only has one of its two sockets equipped with a dual-core Opteron.
Some observations: 1. amd64 bsd-snapshot of 28. Aug (single core, without ACPI) appears to run stable; 2. amd64 bsd.mp-.snapshot of 28. Aug (dual core, without ACPI) crashes during/shortly after boot; 3. amd64 bsd.mp-.snapshot of 28. Aug (dual core, ACPI enabled) appears to run stable, although it was running only for a few hours so far. Before installing OpenBSD, the firemares of the BIOS, IPMI and RAID controllers were updated to the current release (v1.2). # sysctl hw hw.machine=amd64 hw.model=Dual-Core AMD Opteron(tm) Processor 2210 hw.ncpu=2 hw.byteorder=1234 hw.physmem=2147012608 hw.usermem=2147004416 hw.pagesize=4096 hw.disknames=sd0,cd0,sd1 hw.diskcount=3 hw.sensors.ipmi0.temp0=33.00 degC (mb.t_amb), OK hw.sensors.ipmi0.temp1=27.00 degC (fp.t_amb), OK hw.sensors.ipmi0.temp2=29.00 degC (pdb.t_amb), OK hw.sensors.ipmi0.temp3=26.00 degC (io.t_amb), OK hw.sensors.ipmi0.temp4=23.00 degC (p0.t_core), OK hw.sensors.ipmi0.fan0=8800 RPM (ft0.fm0.f0.speed), OK hw.sensors.ipmi0.fan1=9300 RPM (ft0.fm2.f0.speed), OK hw.sensors.ipmi0.fan2=9000 RPM (ft0.fm1.f0.speed), OK hw.sensors.ipmi0.fan3=10000 RPM (ft1.fm0.f0.speed), OK hw.sensors.ipmi0.fan4=10200 RPM (ft1.fm1.f0.speed), OK hw.sensors.ipmi0.fan5=9500 RPM (ft1.fm2.f0.speed), OK hw.sensors.ipmi0.fan6=8600 RPM (ft0.fm0.f1.speed), OK hw.sensors.ipmi0.fan7=8800 RPM (ft0.fm1.f1.speed), OK hw.sensors.ipmi0.fan8=9200 RPM (ft0.fm2.f1.speed), OK hw.sensors.ipmi0.fan9=9900 RPM (ft1.fm0.f1.speed), OK hw.sensors.ipmi0.fan10=10200 RPM (ft1.fm1.f1.speed), OK hw.sensors.ipmi0.fan11=9100 RPM (ft1.fm2.f1.speed), OK hw.sensors.ipmi0.volt0=2.91 VDC (mb.v_bat), OK hw.sensors.ipmi0.volt1=3.18 VDC (mb.v_+3v3stby), OK hw.sensors.ipmi0.volt2=3.32 VDC (mb.v_+3v3), OK hw.sensors.ipmi0.volt3=5.04 VDC (mb.v_+5v), OK hw.sensors.ipmi0.volt4=12.16 VDC (mb.v_+12v), OK hw.sensors.ipmi0.volt5=-12.42 VDC (mb.v_-12v), OK hw.sensors.ipmi0.volt6=2.56 VDC (mb.v_+2v5core), OK hw.sensors.ipmi0.volt7=1.52 VDC (mb.v_+1v5core), OK hw.sensors.ipmi0.volt8=1.22 VDC (mb.v_+1v2core), OK hw.sensors.ipmi0.volt9=1.33 VDC (p0.v_vdd), OK hw.sensors.ipmi0.volt10=1.84 VDC (p0.v_vddio), OK hw.sensors.ipmi0.volt11=0.91 VDC (p0.v_vtt), OK hw.sensors.ipmi0.indicator0=Off (sys.intsw), OK hw.cpuspeed=1795 hw.vendor=Sun Microsystems hw.product=Sun Fire X4100 M2 hw.serialno=0730AL5C58 hw.uuid=00000000-0000-0000-0000-00144f9ef0a1 # # dmesg OpenBSD 4.2 (GENERIC.MP) #1378: Tue Aug 28 10:48:58 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 2147012608 (2047MB) avail mem = 2073706496 (1977MB) User Kernel Config UKC> enable acpi 266 acpi0 enabled UKC> exit Continuing... mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.3 @ 0xfbd50 (70 entries) bios0: vendor American Megatrends Inc. version "0ABJX039" date 04/11/2007 bios0: Sun Microsystems Sun Fire X4100 M2 acpi0 at mainbus0: rev 2 acpi0: tables DSDT FACP APIC SPCR SLIT OEMB HPET IPET SRAT SSDT acpitimer at acpi0 not configured acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Dual-Core AMD Opteron(tm) Processor 2210, 1795.44 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 1MB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: apic clock running at 199MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Dual-Core AMD Opteron(tm) Processor 2210, 1795.23 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,CX16,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW cpu1: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 1MB 64b/line 16-way L2 cache cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu1: DTLB 32 4KB entries fully associative, 8 4MB entries fully associative ioapic0 at mainbus0 apid 15 pa 0xfec00000, version 11, 24 pins ioapic1 at mainbus0 apid 16 pa 0xfeafd000, version 11, 7 pins ioapic1: misconfigured as apic 0, can't remap to apid 16 ioapic2 at mainbus0 apid 17 pa 0xfeafc000, version 11, 7 pins ioapic2: misconfigured as apic 1, can't remap to apid 17 ioapic3 at mainbus0 apid 14 pa 0xfeaff000, version 11, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 1 (P0P1) acpiprt2 at acpi0: bus 4 (P0P4) acpiprt3 at acpi0: bus 5 (P0P5) acpiprt4 at acpi0: bus 255 (PCIB) acpiprt5 at acpi0: bus 255 (POGA) acpiprt6 at acpi0: bus 255 (POGB) acpiprt7 at acpi0: bus 255 (BR5D) acpiprt8 at acpi0: bus 255 (BR5E) acpiprt9 at acpi0: bus 128 (PCIC) acpiprt10 at acpi0: bus 133 (POGA) acpiprt11 at acpi0: bus 134 (POGB) acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpicpu at acpi0 not configured acpibtn at acpi0 not configured ipmi0 at mainbus0: version 1.5 interface KCS iobase 0xca4/2 spacing 1 pci0 at mainbus0 bus 0: configuration mode 1 "NVIDIA nForce4 DDR" rev 0xa3 at pci0 dev 0 function 0 not configured pcib0 at pci0 dev 1 function 0 "NVIDIA nForce4 ISA" rev 0xa3 nviic0 at pci0 dev 1 function 1 "NVIDIA nForce4 SMBus" rev 0xa2 iic0 at nviic0: disabled to avoid ipmi0 interactions iic1 at nviic0: disabled to avoid ipmi0 interactions ohci0 at pci0 dev 2 function 0 "NVIDIA nForce4 USB" rev 0xa2: apic 15 int 11 (irq 11), version 1.0, legacy support ehci0 at pci0 dev 2 function 1 "NVIDIA nForce4 USB" rev 0xa3: apic 15 int 5 (irq 5) usb0 at ehci0: USB revision 2.0 uhub0 at usb0: NVIDIA EHCI root hub, rev 2.00/1.00, addr 1 pciide0 at pci0 dev 6 function 0 "NVIDIA nForce4 IDE" rev 0xf2: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility pciide0: channel 0 disabled (no drives) pciide0: channel 1 ignored (disabled) ppb0 at pci0 dev 9 function 0 "NVIDIA nForce4 PCI-PCI" rev 0xa2 pci1 at ppb0 bus 1 vga1 at pci1 dev 3 function 0 "ATI Rage XL" rev 0x27 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) nfe0 at pci0 dev 10 function 0 "NVIDIA CK804 LAN" rev 0xa3: apic 15 int 15 (irq 15), address 00:14:4f:8e:2c:12 eephy0 at nfe0 phy 1: Marvell 88E1111 Gigabit PHY, rev. 2 ppb1 at pci0 dev 11 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci2 at ppb1 bus 2 ppb2 at pci0 dev 12 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci3 at ppb2 bus 3 ppb3 at pci0 dev 13 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci4 at ppb3 bus 4 ppb4 at pci0 dev 14 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci5 at ppb4 bus 5 pchb0 at pci0 dev 24 function 0 "AMD AMD64 HyperTransport" rev 0x00pci6 at pchb0 bus 128 "NVIDIA nForce4 DDR" rev 0xa3 at pci6 dev 0 function 0 not configured "NVIDIA CK804" rev 0xa3 at pci6 dev 1 function 0 not configured nfe1 at pci6 dev 10 function 0 "NVIDIA CK804 LAN" rev 0xa3: apic 15 int 15 (irq 7), address 00:14:4f:8e:2c:13 eephy1 at nfe1 phy 1: Marvell 88E1111 Gigabit PHY, rev. 2 ppb5 at pci6 dev 11 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci7 at ppb5 bus 129 ppb6 at pci6 dev 12 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci8 at ppb6 bus 130 ppb7 at pci6 dev 13 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci9 at ppb7 bus 131 ppb8 at pci6 dev 14 function 0 "NVIDIA nForce4 PCIE" rev 0xa3 pci10 at ppb8 bus 132 ppb9 at pci6 dev 16 function 0 "AMD 8132 PCIX" rev 0x12 pci11 at ppb9 bus 133 "AMD 8132 PCIX IOAPIC" rev 0x12 at pci6 dev 16 function 1 not configured ppb10 at pci6 dev 17 function 0 "AMD 8132 PCIX" rev 0x12 pci12 at ppb10 bus 134 em0 at pci12 dev 1 function 0 "Intel PRO/1000MT (82546EB)" rev 0x03: apic 17 int 0 (irq 10), address 00:14:4f:8e:2c:14 em1 at pci12 dev 1 function 1 "Intel PRO/1000MT (82546EB)" rev 0x03: apic 17 int 1 (irq 6), address 00:14:4f:8e:2c:15 mpi0 at pci12 dev 2 function 0 "Symbios Logic SAS1064" rev 0x02: apic 17 int 2 (irq 7) scsibus0 at mpi0: 108 targets sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST973401LSUN72G, 0556> SCSI3 0/direct fixed sd0: 70007MB, 14089 cyl, 24 head, 424 sec, 512 bytes/sec, 143374738 sec total "AMD 8132 PCIX IOAPIC" rev 0x12 at pci6 dev 17 function 1 not configured pchb1 at pci0 dev 24 function 1 "AMD AMD64 Address Map" rev 0x00 pchb2 at pci0 dev 24 function 2 "AMD AMD64 DRAM Cfg" rev 0x00 pchb3 at pci0 dev 24 function 3 "AMD AMD64 Misc Cfg" rev 0x00 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 usb1 at ohci0: USB revision 1.0 uhub1 at usb1: NVIDIA OHCI root hub, rev 1.00/1.00, addr 1 uhidev0 at uhub1 port 3 configuration 1 interface 0 uhidev0: American Megatrends Inc. Virtual Keyboard and Mouse, rev 1.10/1.00, addr 2, iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev1 at uhub1 port 3 configuration 1 interface 1 uhidev1: American Megatrends Inc. Virtual Keyboard and Mouse, rev 1.10/1.00, addr 2, iclass 3/1 ums0 at uhidev1 ums0: X report 0x0002 not supported umass0 at uhub1 port 4 configuration 1 interface 0 umass0: American Megatrends Inc. Virtual Cdrom Device, rev 1.10/1.00, addr 3 umass0: using ATAPI over Bulk-Only scsibus1 at umass0: 2 targets cd0 at scsibus1 targ 1 lun 0: <AMI, Virtual CDROM, 1.00> SCSI0 5/cdrom removable umass1 at uhub1 port 5 configuration 1 interface 0 umass1: American Megatrends Inc. Virtual Floppy Device, rev 1.10/1.00, addr 4 umass1: using UFI over CBI with CCI scsibus2 at umass1: 2 targets sd1 at scsibus2 targ 1 lun 0: <AMI, Virtual Floppy, 1.00> SCSI0 0/direct removable sd1: drive offline dkcsum: sd0 matches BIOS drive 0x80 root on sd0a swap on sd0b dump on sd0b