I finally got this up & running 64 bit; I have only $75 tied up in this box and it runs very well on 64 bit OpenBSD 5.7; I tried other OS's such as Ubuntu & FreeBSD, but based on my informal trial & error, OpenBSD is still the reigning OS for this type of hardware. As a disclaimer - I am OS agnostic, in the sense that I believe in using the OS most suited for the computer & the desired application, but OpenBSD is a great OS and I highly respect its developer team.
Attached is the basic dmesg; Richard ps: I am a contributer to the foundation with occasional financial contributions and will continue this for the foreseeable future. OpenBSD 5.7 (RAMDISK_CD) #806: Sun Mar 8 11:08:49 MDT 2015 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/RAMDISK_CD real mem = 3404660736 (3246MB) avail mem = 3312402432 (3158MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf0000 (53 entries) bios0: vendor Phoenix Technologies, LTD version "3.13" date 11/15/2005 bios0: Compaq Presario 061 EL426AA-ABA SR1710NX NA611 acpi0 at bios0: rev 0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT SRAT MCFG APIC acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Sempron(tm) Processor 3400+, 1990.14 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW,LAHF cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 128KB 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: AMD erratum 89 present, BIOS upgrade may be required cpu0: apic clock running at 198MHz ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 2 (P2P_) acpiprt2 at acpi0: bus 1 (AGP_) pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "ATI RS480 Host" rev 0x10 ppb0 at pci0 dev 1 function 0 "ATI RS480 PCIE" rev 0x00 pci1 at ppb0 bus 1 vga1 at pci1 dev 5 function 0 "ATI Radeon XPRESS 200" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) pciide0 at pci0 dev 18 function 0 "ATI SB400 SATA" rev 0x00: DMA pciide0: using apic 2 int 22 for native-PCI interrupt pciide0: port 0: device present, speed: 1.5Gb/s wd0 at pciide0 channel 0 drive 0: <Maxtor 6L100M0> wd0: 16-sector PIO, LBA48, 95396MB, 195371568 sectors wd0(pciide0:0:0): using BIOS timings, Ultra-DMA mode 5 ohci0 at pci0 dev 19 function 0 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ohci1 at pci0 dev 19 function 1 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci0 at pci0 dev 19 function 2 "ATI SB400 USB2" rev 0x00: apic 2 int 18 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 "ATI SB400 SMBus" rev 0x11 at pci0 dev 20 function 0 not configured pciide1 at pci0 dev 20 function 1 "ATI SB400 IDE" rev 0x00: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide1 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <LITE-ON, COMBO SOHC-4836K, SPJ2> ATAPI 5/cdrom removable cd0(pciide1:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 "ATI SB400 ISA" rev 0x00 at pci0 dev 20 function 3 not configured ppb1 at pci0 dev 20 function 4 "ATI SB400 PCI" rev 0x00 pci2 at ppb1 bus 2 rl0 at pci2 dev 3 function 0 "Realtek 8139" rev 0x10: apic 2 int 21, address 00:15:f2:76:1d:d0 rlphy0 at rl0 phy 0: RTL internal PHY "VIA VT6306 FireWire" rev 0x80 at pci2 dev 5 function 0 not configured vendor "Conexant", unknown product 0x2f20 (class communications subclass miscellaneous, rev 0x00) at pci2 dev 9 function 0 not configured "ATI SB400 AC97" rev 0x02 at pci0 dev 20 function 5 not configured pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 pchb4 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00 usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at mainbus0 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 uhub1: device problem, disabling port 4 softraid0 at root scsibus1 at softraid0: 256 targets root on rd0a swap on rd0b dump on rd0b syncing disks... OpenBSD 5.7 (GENERIC) #825: Sun Mar 8 10:59:14 MDT 2015 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC real mem = 3404660736 (3246MB) avail mem = 3310215168 (3156MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf0000 (53 entries) bios0: vendor Phoenix Technologies, LTD version "3.13" date 11/15/2005 bios0: Compaq Presario 061 EL426AA-ABA SR1710NX NA611 acpi0 at bios0: rev 0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT SRAT MCFG APIC acpi0: wakeup devices USB0(S3) USB1(S3) USB2(S3) AUDO(S3) MODM(S3) P2P_(S5) PS2M(S5) PS2K(S5) PCI0(S5) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Sempron(tm) Processor 3400+, 1990.11 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW,LAHF cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 128KB 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: AMD erratum 89 present, BIOS upgrade may be required mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 198MHz ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 2 (P2P_) acpiprt2 at acpi0: bus 1 (AGP_) acpicpu0 at acpi0: PSS acpitz0 at acpi0: critical temperature is 75 degC acpibtn0 at acpi0: PWRB cpu0: Cool'n'Quiet K8 1990 MHz: speeds: 2000 1800 1000 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "ATI RS480 Host" rev 0x10 ppb0 at pci0 dev 1 function 0 "ATI RS480 PCIE" rev 0x00 pci1 at ppb0 bus 1 radeondrm0 at pci1 dev 5 function 0 "ATI Radeon XPRESS 200" rev 0x00 drm0 at radeondrm0 radeondrm0: apic 2 int 17 pciide0 at pci0 dev 18 function 0 "ATI SB400 SATA" rev 0x00: DMA pciide0: using apic 2 int 22 for native-PCI interrupt pciide0: port 0: device present, speed: 1.5Gb/s wd0 at pciide0 channel 0 drive 0: <Maxtor 6L100M0> wd0: 16-sector PIO, LBA48, 95396MB, 195371568 sectors wd0(pciide0:0:0): using BIOS timings, Ultra-DMA mode 5 ohci0 at pci0 dev 19 function 0 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ohci1 at pci0 dev 19 function 1 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci0 at pci0 dev 19 function 2 "ATI SB400 USB2" rev 0x00: apic 2 int 18 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SB400 SMBus" rev 0x11: SMI iic0 at piixpm0 adt0 at iic0 addr 0x2e: sch5017 rev 0x8a spdmem0 at iic0 addr 0x50: 256MB DDR SDRAM non-parity PC3200CL3.0 spdmem1 at iic0 addr 0x51: 1GB DDR SDRAM non-parity PC3200CL3.0 spdmem2 at iic0 addr 0x52: 1GB DDR SDRAM non-parity PC3200CL3.0 spdmem3 at iic0 addr 0x53: 1GB DDR SDRAM non-parity PC3200CL3.0 pciide1 at pci0 dev 20 function 1 "ATI SB400 IDE" rev 0x00: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide1 channel 1 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <LITE-ON, COMBO SOHC-4836K, SPJ2> ATAPI 5/cdrom removable cd0(pciide1:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 pcib0 at pci0 dev 20 function 3 "ATI SB400 ISA" rev 0x00 ppb1 at pci0 dev 20 function 4 "ATI SB400 PCI" rev 0x00 pci2 at ppb1 bus 2 rl0 at pci2 dev 3 function 0 "Realtek 8139" rev 0x10: apic 2 int 21, address 00:15:f2:76:1d:d0 rlphy0 at rl0 phy 0: RTL internal PHY "VIA VT6306 FireWire" rev 0x80 at pci2 dev 5 function 0 not configured vendor "Conexant", unknown product 0x2f20 (class communications subclass miscellaneous, rev 0x00) at pci2 dev 9 function 0 not configured auixp0 at pci0 dev 20 function 5 "ATI SB400 AC97" rev 0x02: apic 2 int 17 auixp0: soft resetting aclink pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 kate0 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00 usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 uhub1: device problem, disabling port 4 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (614b9f9ef9982d77.a) swap on wd0b dump on wd0b error: [drm:pid0:r100_cp_init_microcode] *ERROR* radeon_cp: Failed to load firmware "radeon-r300_cp" error: [drm:pid0:r100_cp_init] *ERROR* Failed to load firmware! drm:pid0:rs400_startup *ERROR* failed initializing CP (-2). drm:pid0:rs400_init *ERROR* Disabling GPU acceleration radeondrm0: 1152x900 wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0 wsdisplay0: screen 1-5 added (std, vt100 emulation) ac97: codec id 0x414c4780 (Avance Logic ALC658 rev 0) ac97: codec features 20 bit DAC, 18 bit ADC, No 3D Stereo audio0 at auixp0 syncing disks... done OpenBSD 5.7 (GENERIC) #825: Sun Mar 8 10:59:14 MDT 2015 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC real mem = 3404660736 (3246MB) avail mem = 3310215168 (3156MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xf0000 (53 entries) bios0: vendor Phoenix Technologies, LTD version "3.13" date 11/15/2005 bios0: Compaq Presario 061 EL426AA-ABA SR1710NX NA611 acpi0 at bios0: rev 0 acpi0: sleep states S0 S1 S3 S4 S5 acpi0: tables DSDT FACP SSDT SRAT MCFG APIC acpi0: wakeup devices USB0(S3) USB1(S3) USB2(S3) AUDO(S3) MODM(S3) P2P_(S5) PS2M(S5) PS2K(S5) PCI0(S5) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD Sempron(tm) Processor 3400+, 1990.13 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,SSE3,NXE,MMXX,FFXSR,LONG,3DNOW2,3DNOW,LAHF cpu0: 64KB 64b/line 2-way I-cache, 64KB 64b/line 2-way D-cache, 128KB 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: AMD erratum 89 present, BIOS upgrade may be required mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 198MHz ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus 2 (P2P_) acpiprt2 at acpi0: bus 1 (AGP_) acpicpu0 at acpi0: PSS acpitz0 at acpi0: critical temperature is 75 degC acpibtn0 at acpi0: PWRB cpu0: Cool'n'Quiet K8 1990 MHz: speeds: 2000 1800 1000 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "ATI RS480 Host" rev 0x10 ppb0 at pci0 dev 1 function 0 "ATI RS480 PCIE" rev 0x00 pci1 at ppb0 bus 1 radeondrm0 at pci1 dev 5 function 0 "ATI Radeon XPRESS 200" rev 0x00 drm0 at radeondrm0 radeondrm0: apic 2 int 17 pciide0 at pci0 dev 18 function 0 "ATI SB400 SATA" rev 0x00: DMA pciide0: using apic 2 int 22 for native-PCI interrupt pciide0: port 0: device present, speed: 1.5Gb/s wd0 at pciide0 channel 0 drive 0: <Maxtor 6L100M0> wd0: 16-sector PIO, LBA48, 95396MB, 195371568 sectors wd0(pciide0:0:0): using BIOS timings, Ultra-DMA mode 5 ohci0 at pci0 dev 19 function 0 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ohci1 at pci0 dev 19 function 1 "ATI SB400 USB" rev 0x00: apic 2 int 18, version 1.0, legacy support ehci0 at pci0 dev 19 function 2 "ATI SB400 USB2" rev 0x00: apic 2 int 18 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "ATI SB400 SMBus" rev 0x11: SMI iic0 at piixpm0 adt0 at iic0 addr 0x2e: sch5017 rev 0x8a spdmem0 at iic0 addr 0x50: 256MB DDR SDRAM non-parity PC3200CL3.0 spdmem1 at iic0 addr 0x51: 1GB DDR SDRAM non-parity PC3200CL3.0 spdmem2 at iic0 addr 0x52: 1GB DDR SDRAM non-parity PC3200CL3.0 spdmem3 at iic0 addr 0x53: 1GB DDR SDRAM non-parity PC3200CL3.0 pciide1 at pci0 dev 20 function 1 "ATI SB400 IDE" rev 0x00: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide1 channel 1 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <LITE-ON, COMBO SOHC-4836K, SPJ2> ATAPI 5/cdrom removable cd0(pciide1:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2 pcib0 at pci0 dev 20 function 3 "ATI SB400 ISA" rev 0x00 ppb1 at pci0 dev 20 function 4 "ATI SB400 PCI" rev 0x00 pci2 at ppb1 bus 2 rl0 at pci2 dev 3 function 0 "Realtek 8139" rev 0x10: apic 2 int 21, address 00:15:f2:76:1d:d0 rlphy0 at rl0 phy 0: RTL internal PHY "VIA VT6306 FireWire" rev 0x80 at pci2 dev 5 function 0 not configured vendor "Conexant", unknown product 0x2f20 (class communications subclass miscellaneous, rev 0x00) at pci2 dev 9 function 0 not configured auixp0 at pci0 dev 20 function 5 "ATI SB400 AC97" rev 0x02: apic 2 int 17 auixp0: soft resetting aclink pchb1 at pci0 dev 24 function 0 "AMD AMD64 0Fh HyperTransport" rev 0x00 pchb2 at pci0 dev 24 function 1 "AMD AMD64 0Fh Address Map" rev 0x00 pchb3 at pci0 dev 24 function 2 "AMD AMD64 0Fh DRAM Cfg" rev 0x00 kate0 at pci0 dev 24 function 3 "AMD AMD64 0Fh Misc Cfg" rev 0x00 usb1 at ohci0: USB revision 1.0 uhub1 at usb1 "ATI OHCI root hub" rev 1.00/1.00 addr 1 usb2 at ohci1: USB revision 1.0 uhub2 at usb2 "ATI OHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 uhub1: device problem, disabling port 4 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (614b9f9ef9982d77.a) swap on wd0b dump on wd0b radeondrm0: 1152x900 wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0 wsdisplay0: screen 1-5 added (std, vt100 emulation) ac97: codec id 0x414c4780 (Avance Logic ALC658 rev 0) ac97: codec features 20 bit DAC, 18 bit ADC, No 3D Stereo audio0 at auixp0