slow kernel when memory = 8G 7445

I am the original poster. Thanks for everybody for trying to help.

Some of you rightfully complained that I didn't provide enough info. Here are the relevant infos:

The kernel config file was grabbed fromboot(2.6.8) which came from Debian. My co-worker (who compiled the kernel) just changed the memory 4GB to 64GB. That's all.

Anyways, here is a part of the .config file. I removed everything I considered unnecessary.

CONFIGX86=y CONFIGMMU=y CONFIGUID16=y CONFIGGENERICISADMA=y

# # Code maturity level options # CONFIGEXPERIMENTAL=y # CONFIGCLEANCOMPILE is not set CONFIGBROKEN=y CONFIGBROKENONSMP=y

# # General setup # CONFIGSWAP=y CONFIGSYSVIPC=y CONFIGPOSIXMQUEUE=y CONFIGBSDPROCESSACCT=y # CONFIGBSDPROCESSACCTV3 is not set CONFIGSYSCTL=y # CONFIGAUDIT is not set CONFIGLOGBUFSHIFT=15 CONFIGHOTPLUG=y # CONFIGIKCONFIG is not set CONFIGEMBEDDED=y CONFIGKALLSYMS=y # CONFIGKALLSYMSALL is not set # CONFIGKALLSYMSEXTRAPbutt is not set CONFIGFUTEX=y CONFIGEPOLL=y CONFIGIOSCHEDNOOP=y CONFIGIOSCHEDAS=y CONFIGIOSCHEDDEADLINE=y CONFIGIOSCHEDCFQ=y # CONFIGCCOPTIMIZEFORSIZE is not set

# # Loadable module support # CONFIGMODULES=y CONFIGMODULEUNLOAD=y CONFIGMODULEFORCEUNLOAD=y CONFIGOBSOLETEMODPARM=y CONFIGMODVERSIONS=y CONFIGKMOD=y CONFIGSTOPMACHINE=y

# # Processor type and features # CONFIGX86PC=y # CONFIGX86ELAN is not set # CONFIGX86VOYAGER is not set # CONFIGX86NUMAQ is not set # CONFIGX86SUMMIT is not set # CONFIGX86BIGSMP is not set # CONFIGX86VISWS is not set # CONFIGX86GENERICARCH is not set # CONFIGX86ES7000 is not set # CONFIGM386 is not set # CONFIGM486 is not set # CONFIGM586 is not set # CONFIGM586TSC is not set # CONFIGM586MMX is not set CONFIGM686=y # CONFIGMPENTIUMII is not set # CONFIGMPENTIUMIII is not set # CONFIGMPENTIUMM is not set # CONFIGMPENTIUM4 is not set # CONFIGMK6 is not set # CONFIGMK7 is not set # CONFIGMK8 is not set # CONFIGMCRUSOE is not set # CONFIGMWINCHIPC6 is not set # CONFIGMWINCHIP2 is not set # CONFIGMWINCHIP3D is not set # CONFIGMCYRIXIII is not set # CONFIGMVIAC32 is not set # CONFIGX86GENERIC is not set # CONFIGX86EMU486 is not set CONFIGX86CMPXCHG=y CONFIGX86XADD=y CONFIGX86L1CACHESHIFT=5 CONFIGRWSEMXCHGADDALGORITHM=y CONFIGX86PPROFENCE=y CONFIGX86WPWORKSOK=y CONFIGX86INVLPG=y CONFIGX86BSWAP=y CONFIGX86POPADOK=y CONFIGX86GOODAPIC=y CONFIGX86USEPPROCHECKSUM=y CONFIGHPETTIMER=y CONFIGSMP=y CONFIGNRCPUS=8 CONFIGSCHEDSMT=y CONFIGPREEMPT=y CONFIGX86LOCALAPIC=y CONFIGX86IOAPIC=y CONFIGX86TSC=y CONFIGX86MCE=y CONFIGX86MCENONbane=m CONFIGX86MCEP4THERMAL=y CONFIGTOSHIBA=m CONFIGI8K=m CONFIGMICROCODE=m CONFIGX86MSR=m CONFIGX86CPUID=m

# # Firmware Drivers # CONFIGEDD=m # CONFIGNOHIGHMEM is not set # CONFIGHIGHMEM4G is not set CONFIGHIGHMEM64G=y CONFIGHIGHMEM=y CONFIGX86PAE=y # CONFIGHIGHPTE is not set # CONFIGMATHEMULATION is not set CONFIGMTRR=y # CONFIGEFI is not set # CONFIGIRQBALANCE is not set CONFIGHAVEDECLOCK=y # CONFIGREGPARM is not set

# # Power management options (ACPI, APM) # CONFIGPM=y # CONFIGSOFTWARESUSPEND is not set # CONFIGPMDISK is not set

# # ACPI (Advanced Configuration and Power Interface) Support # CONFIGACPI=y CONFIGACPIBOOT=y CONFIGACPIINTERPRETER=y CONFIGACPISLEEP=y CONFIGACPISLEEPPROCFS=y CONFIGACPIAC=m CONFIGACPIBATTERY=m CONFIGACPIBUTTON=m CONFIGACPIFAN=m CONFIGACPIPROCESSOR=m CONFIGACPITHERMAL=m CONFIGACPIASUS=m CONFIGACPITOSHIBA=m # CONFIGACPIDEBUG is not set CONFIGACPIBUS=y CONFIGACPIEC=y CONFIGACPIPOWER=y CONFIGACPIPCI=y CONFIGACPISYSTEM=y CONFIGX86PMTIMER=y

# # APM (Advanced Power Management) BIOS Support # CONFIGAPM=m # CONFIGAPMIGNOREUSERSUSPEND is not set # CONFIGAPMDOENABLE is not set # CONFIGAPMCPUIDLE is not set # CONFIGAPMDISPLAYBLANK is not set # CONFIGAPMRTCISGMT is not set # CONFIGAPMALLOWINTS is not set # CONFIGAPMREALMODEPOWEROFF is not set

# # CPU Frequency scaling # CONFIGCPUFREQ=y CONFIGCPUFREQPROCINTF=m CONFIGCPUFREQDEFAULTGOVPERFORMANCE=y # CONFIGCPUFREQDEFAULTGOVUSERSPACE is not set CONFIGCPUFREQGOVPERFORMANCE=y CONFIGCPUFREQGOVPOWERSAVE=m CONFIGCPUFREQGOVUSERSPACE=m # CONFIGCPUFREQ24API is not set CONFIGCPUFREQTABLE=m

# # CPUFreq processor drivers # CONFIGX86ACPICPUFREQ=m # CONFIGX86ACPICPUFREQPROCINTF is not set CONFIGX86POWERNOWK6=m CONFIGX86POWERNOWK7=m CONFIGX86POWERNOWK8=m CONFIGX86GXSUSPMOD=m CONFIGX86SPEEDSTEPCENTRINO=m CONFIGX86SPEEDSTEPCENTRINOTABLE=y CONFIGX86SPEEDSTEPCENTRINOACPI=y CONFIGX86SPEEDSTEPICH=m CONFIGX86SPEEDSTEPSMI=m CONFIGX86P4CLOCKMOD=m CONFIGX86SPEEDSTEPLIB=m CONFIGX86SPEEDSTEPRELAXEDCAPCHECK=y CONFIGX86LONGRUN=m CONFIGX86LONGHAUL=m

# # Bus options (PCI, PCMCIA, EISA, MCA, ISA) # CONFIGPCI=y # CONFIGPCIGOBIOS is not set # CONFIGPCIGOMMCONFIG is not set # CONFIGPCIGODIRECT is not set CONFIGPCIGOANY=y CONFIGPCIBIOS=y CONFIGPCIDIRECT=y CONFIGPCIMMCONFIG=y CONFIGPCIMSI=y # CONFIGPCILEGACYPROC is not set CONFIGPCINAMES=y CONFIGISA=y # CONFIGEISA is not set # CONFIGMCA is not set CONFIGSCx200=m

# # PCMCIA-CardBus support # CONFIGPCMCIA=m # CONFIGPCMCIADEBUG is not set CONFIGYENTA=m CONFIGCARDBUS=y CONFIGPD6729=m CONFIGI82092=m CONFIGI82365=m CONFIGTCIC=m CONFIGPCMCIAPROBE=y

# # PCI Hotplug Support # CONFIGHOTPLUGPCI=m CONFIGHOTPLUGPCIFAKE=m CONFIGHOTPLUGPCICOMPAQ=m # CONFIGHOTPLUGPCICOMPAQNVRAM is not set CONFIGHOTPLUGPCIIBM=m CONFIGHOTPLUGPCIACPI=m CONFIGHOTPLUGPCICPCI=y CONFIGHOTPLUGPCICPCIZT5550=m CONFIGHOTPLUGPCICPCIGENERIC=m CONFIGHOTPLUGPCIPCIE=m # CONFIGHOTPLUGPCIPCIEPOLLEVENTMODE is not set CONFIGHOTPLUGPCISHPC=m # CONFIGHOTPLUGPCISHPCPOLLEVENTMODE is not set

# # Generic Driver Options # CONFIGSTANDALONE=y CONFIGPREVENTFIRMWAREBUILD=y CONFIGFWLOADER=m # CONFIGDEBUGDRIVER is not set

# # Profiling support # CONFIGPROFILING=y CONFIGOPROFILE=m

# # Kernel hacking # CONFIGDEBUGKERNEL=y # CONFIGEARLYPRINTK is not set # CONFIGDEBUGSTACKOVERFLOW is not set # CONFIGDEBUGSTACKUSAGE is not set # CONFIGDEBUGSLAB is not set CONFIGMAGICSYSRQ=y # CONFIGDEBUGSPINLOCK is not set # CONFIGDEBUGPAGEALLOC is not set # CONFIGDEBUGHIGHMEM is not set # CONFIGDEBUGINFO is not set # CONFIGDEBUGSPINLOCKSLEEP is not set # CONFIGFRAMEPOINTER is not set # CONFIG4KSTACKS is not set CONFIGX86FINDSMPCONFIG=y CONFIGX86MPPARSE=y

# # Security options # CONFIGSECURITY=y # CONFIGSECURITYNETWORK is not set CONFIGSECURITYCAPABILITIES=m CONFIGSECURITYROOTPLUG=m # CONFIGSECURITYSELINUX is not set

# # Library routines # CONFIGCRCCCITT=m CONFIGCRC32=y CONFIGLIBCRC32C=m CONFIGZLIBINFLATE=y CONFIGZLIBDEFLATE=m CONFIGX86SMP=y CONFIGX86HT=y CONFIGX86BIOSREBOOT=y CONFIGX86TRAMPOLINE=y

Here is the output ofproc-cpuinfo:

processor : 0 vendorid : GenuineIntel cpu family : 15 model : 6 model name : Intel(R) Pentium(R) D CPU 3.40GHz stepping : 4 cpu MHz : 3412.634 cache size : 2048 KB physical id : 0 siblings : 2 fdivbug : no hltbug : no f00fbug : no comabug : no fpu : yes fpuexception : yes cpuid level : 6 wp : yes flags : 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 ht tm pbe lm pni monitor dscpl tm2 cid bogomips : 6766.59

processor : 1 vendorid : GenuineIntel cpu family : 15 model : 6 model name : Intel(R) Pentium(R) D CPU 3.40GHz stepping : 4 cpu MHz : 3412.634 cache size : 2048 KB physical id : 0 siblings : 2 fdivbug : no hltbug : no f00fbug : no comabug : no fpu : yes fpuexception : yes cpuid level : 6 wp : yes flags : 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 ht tm pbe lm pni monitor dscpl tm2 cid bogomips : 6815.74

Here is the complete output of dmidecode:

# dmidecode 2.6 SMBIOS 2.4 present. 74 structures occupying 2511 bytes. Table at 0x000F0680. Handle 0x0000 DMI type 0, 24 bytes. BIOS Information Vendor: American Megatrends Inc. Version: 0215 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 1024 kB Characteristics: ISA is supported PCI is supported PNP is supported APM is supported BIOS is upgradeable BIOS shadowing is allowed ESCD support is available Boot from CD is supported Selectable boot is supported BIOS ROM is socketed EDD is supported 5.25"-1.2 MB floppy services are supported (int 13h) 3.5"-720 KB floppy services are supported (int 13h) 3.5"-2.88 MB floppy services are supported (int 13h) Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h) CGA-mono video services are supported (int 10h) ACPI is supported USB legacy is supported LS-120 boot is supported ATAPI Zip drive boot is supported BIOS boot specification is supported Handle 0x0001 DMI type 1, 27 bytes. System Information Manufacturer: stem manufacturer Product Name: System Product Name Version: System Version Serial Number: System Serial Number UUID: E0631FCF-8DFE-D511-BB87-0018F36C40E2 Handle 0x0002 DMI type 2, 15 bytes. Base Board Information Manufacturer: ASUSTeK Computer INC. Product Name: P5W64 WS Pro Version: Rev 1.xx Serial Number: MB-1234567890 buttet Tag: To Be Filled By O.E.M. Features: Board is a hosting board Board is replaceable Location In Chbuttis: To Be Filled By O.E.M. Chbuttis Handle: 0x0003 Type: Motherboard Contained Object Handlers: 0 Handle 0x0003 DMI type 3, 21 bytes. Chbuttis Information Manufacturer: Chbuttis Manufacture Type: Desktop Version: Chbuttis Version Serial Number: Chbuttis Serial Number buttet Tag: buttet-1234567890 Boot-up State: Safe Power Supply State: Safe Thermal State: Safe Security Status: None OEM Information: 0x00000001 Heigth: Unspecified Number Of Power Cords: 1 Contained Elements: 0 Handle 0x0004 DMI type 4, 35 bytes. Processor Information Socket Designation: LGA 775 Type: Central Processor Family: Pentium 4 Manufacturer: Intel ID: 64 0F 00 00 FF FB EB BF Signature: Type 0, Family 15, Model 6, Stepping 4 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (Fast floating-point save and restore) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Hyper-threading technology) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Pentium(R) D CPU 3.40GHz Voltage: 1.2 V Max Speed: 4400 MHz Current Speed: 3400 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x0005 L2 Cache Handle: 0x0006 L3 Cache Handle: 0x0007 Serial Number: To Be Filled By O.E.M. buttet Tag: To Be Filled By O.E.M. Part Number: To Be Filled By O.E.M. Handle 0x0005 DMI type 7, 19 bytes. Cache Information Socket Designation: L1-Cache Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Varies With Memory Address Location: Internal Installed Size: 16 KB Maximum Size: 16 KB Supported SRAM Types: Pipeline Burst Installed SRAM Type: Pipeline Burst Speed: Unknown Error Correction Type: Single-bit ECC System Type: Data buttociativity: 8-way Set-buttociative Handle 0x0006 DMI type 7, 19 bytes. Cache Information Socket Designation: L2-Cache Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Varies With Memory Address Location: Internal Installed Size: 4096 KB Maximum Size: 4096 KB Supported SRAM Types: Pipeline Burst Installed SRAM Type: Pipeline Burst Speed: Unknown Error Correction Type: Single-bit ECC System Type: Unified buttociativity: 8-way Set-buttociative Handle 0x0007 DMI type 7, 19 bytes. Cache Information Socket Designation: L3-Cache Configuration: Disabled, Not Socketed, Level 3 Operational Mode: Unknown Location: Internal Installed Size: 0 KB Maximum Size: 0 KB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Unknown System Type: Unknown buttociativity: Unknown Handle 0x0008 DMI type 5, 24 bytes. Memory Controller Information Error Detecting Method: 64-bit ECC Error Correcting Capabilities: None Supported Interleave: One-way Interleave Current Interleave: One-way Interleave Maximum Memory Module Size: 1024 MB Maximum Total Memory Size: 4096 MB Supported Speeds: 70 ns 60 ns 50 ns Supported Memory Types: SIMM DIMM Memory Module Voltage: 3.3 V buttociated Memory Slots: 4 0x0009 0x000A 0x000B 0x000C Enabled Error Correcting Capabilities: None Handle 0x0009 DMI type 6, 12 bytes. Memory Module Information Socket Designation: DIMM0 Bank Connections: 1 5 Current Speed: 37 ns Type: Parity ECC DIMM Burst EDO Installed Size: 2048 MB (Double-bank Connection) Enabled Size: 2048 MB (Double-bank Connection) Error Status: OK Handle 0x000A DMI type 6, 12 bytes. Memory Module Information Socket Designation: DIMM1 Bank Connections: 1 5 Current Speed: 37 ns Type: Parity ECC DIMM Burst EDO Installed Size: 2048 MB (Double-bank Connection) Enabled Size: 2048 MB (Double-bank Connection) Error Status: OK Handle 0x000B DMI type 6, 12 bytes. Memory Module Information Socket Designation: DIMM2 Bank Connections: 1 5 Current Speed: 37 ns Type: Parity ECC DIMM Burst EDO Installed Size: 2048 MB (Double-bank Connection) Enabled Size: 2048 MB (Double-bank Connection) Error Status: OK Handle 0x000C DMI type 6, 12 bytes. Memory Module Information Socket Designation: DIMM3 Bank Connections: 1 5 Current Speed: 37 ns Type: Parity ECC DIMM Burst EDO Installed Size: 2048 MB (Double-bank Connection) Enabled Size: 2048 MB (Double-bank Connection) Error Status: OK Handle 0x000D DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: PS-2 Mouse Internal Connector Type: None External Reference Designator: PS-2 Mouse External Connector Type: PS-2 Port Type: Mouse Port Handle 0x000E DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: PS-2 Keyboard Internal Connector Type: None External Reference Designator: PS-2 Keyboard External Connector Type: PS-2 Port Type: Keyboard Port Handle 0x000F DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB1 Internal Connector Type: None External Reference Designator: USB1 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x0010 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB2 Internal Connector Type: None External Reference Designator: USB2 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x0011 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB3 Internal Connector Type: None External Reference Designator: USB3 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x0012 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB4 Internal Connector Type: None External Reference Designator: USB4 External Connector Type: Access Bus (USB) Port Type: USB Handle 0x0013 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: LPT 1 Internal Connector Type: None External Reference Designator: LPT 1 External Connector Type: DB-25 female Port Type: Parallel Port ECP-EPP Handle 0x0014 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Line Out1 Internal Connector Type: None External Reference Designator: Audio Line Out1 External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x0015 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Line Out2 Internal Connector Type: None External Reference Designator: Audio Line Out2 External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x0016 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Line Out3 Internal Connector Type: None External Reference Designator: Audio Line Out3 External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x0017 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Line Out4 Internal Connector Type: None External Reference Designator: Audio Line Out4 External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x0018 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Line In Internal Connector Type: None External Reference Designator: Audio Line In External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x0019 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: Audio Mic In Internal Connector Type: None External Reference Designator: Audio Mic In External Connector Type: Mini Jack (headphones) Port Type: Audio Port Handle 0x001A DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SPDIFOUT1 Internal Connector Type: None External Reference Designator: SPDIFOUT1 External Connector Type: Other Port Type: Audio Port Handle 0x001B DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SPDIFOUT2 Internal Connector Type: None External Reference Designator: SPDIFOUT2 External Connector Type: Other Port Type: Audio Port Handle 0x001C DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: FireWire 1 Internal Connector Type: None External Reference Designator: FireWire 1 External Connector Type: IEEE 1394 Port Type: Firewire (IEEE P1394) Handle 0x001D DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: GbE LAN 1 Internal Connector Type: None External Reference Designator: GbE LAN 1 External Connector Type: RJ-45 Port Type: Network Port Handle 0x001E DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: GbE LAN 2 Internal Connector Type: None External Reference Designator: GbE LAN 2 External Connector Type: RJ-45 Port Type: Network Port Handle 0x001F DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB5 Internal Connector Type: Access Bus (USB) External Reference Designator: Not Specified External Connector Type: None Port Type: USB Handle 0x0020 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB6 Internal Connector Type: Access Bus (USB) External Reference Designator: Not Specified External Connector Type: None Port Type: USB Handle 0x0021 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB7 Internal Connector Type: Access Bus (USB) External Reference Designator: Not Specified External Connector Type: None Port Type: USB Handle 0x0022 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: USB8 Internal Connector Type: Access Bus (USB) External Reference Designator: Not Specified External Connector Type: None Port Type: USB Handle 0x0023 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SBIDE Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0024 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SBSATA1 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0025 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SBSATA2 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0026 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SBSATA3 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0027 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: SBSATA4 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0028 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: MarvellSATA1 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0029 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: MarvellSATA2 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x002A DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: MarvellSATA3 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x002B DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: MarvellSATA4 Internal Connector Type: On Board IDE External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x002C DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: CD Internal Connector Type: On Board Sound Input From CD-ROM External Reference Designator: Not Specified External Connector Type: None Port Type: Audio Port Handle 0x002D DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: FPAUDIO Internal Connector Type: Other External Reference Designator: Not Specified External Connector Type: None Port Type: Audio Port Handle 0x002E DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: COM 1 Internal Connector Type: DB-9 male External Reference Designator: Not Specified External Connector Type: None Port Type: Serial Port 16550A Compatible Handle 0x002F DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: FLOPPY Internal Connector Type: On Board Floppy External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0030 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: CHAFAN Internal Connector Type: Other External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0031 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: CPUFAN Internal Connector Type: Other External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0032 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: PWRFAN Internal Connector Type: Other External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0033 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: CHAFAN2 Internal Connector Type: Other External Reference Designator: Not Specified External Connector Type: None Port Type: Other Handle 0x0034 DMI type 8, 9 bytes. Port Connector Information Internal Reference Designator: FireWire 2 Internal Connector Type: IEEE 1394 External Reference Designator: Not Specified External Connector Type: None Port Type: Firewire (IEEE P1394) Handle 0x0035 DMI type 9, 13 bytes. System Slot Information Designation: PCIEX16 Type: 32-bit PCI-X Current Usage: Available Length: Short ID: 1 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0036 DMI type 9, 13 bytes. System Slot Information Designation: PCIEX16 Type: 32-bit PCI-X Current Usage: In Use Length: Short ID: 2 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0037 DMI type 9, 13 bytes. System Slot Information Designation: PCIEX16 Type: 32-bit PCI-X Current Usage: Available Length: Short ID: 3 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0038 DMI type 9, 13 bytes. System Slot Information Designation: PCIEX16 Type: 32-bit PCI-X Current Usage: Available Length: Short ID: 4 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x0039 DMI type 9, 13 bytes. System Slot Information Designation: PCI1 Type: 32-bit PCI Current Usage: Available Length: Short ID: 5 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x003A DMI type 9, 13 bytes. System Slot Information Designation: PCI2 Type: 32-bit PCI Current Usage: Available Length: Short ID: 6 Characteristics: 3.3 V is provided Opening is shared PME signal is supported Handle 0x003B DMI type 10, 6 bytes. On Board Device Information Type: Ethernet Status: Enabled Description: Onboard Ethernet Handle 0x003C DMI type 11, 5 bytes. OEM Strings String 1: To Be Filled By O.E.M. String 2: To Be Filled By O.E.M. String 3: To Be Filled By O.E.M. String 4: To Be Filled By O.E.M. Handle 0x003D DMI type 13, 22 bytes. BIOS Language Information Installable Languages: 1 enUSiso8859-1 Currently Installed Language: enUSiso8859-1 Handle 0x003E DMI type 16, 15 bytes. Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 4 GB Error Information Handle: Not Provided Number Of Devices: 4 Handle 0x003F DMI type 19, 15 bytes. Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x001FFFFFFFF Range Size: 8 GB Physical Array Handle: 0x003E Parbreastion Width: 0 Handle 0x0040 DMI type 17, 27 bytes. Memory Device Array Handle: 0x003E Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM0 Bank Locator: BANK0 Type: SDRAM Type Detail: Synchronous Speed: Unknown Manufacturer: Manufacturer0 Serial Number: SerNum0 buttet Tag: buttetTagNum0 Part Number: PartNum0 Handle 0x0041 DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x0007FFFFFFF Range Size: 2 GB Physical Device Handle: 0x0040 Memory Array Mapped Address Handle: 0x003F Parbreastion Row Position: 1 Interleaved Data Depth: 1 Handle 0x0042 DMI type 17, 27 bytes. Memory Device Array Handle: 0x003E Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM1 Bank Locator: BANK1 Type: SDRAM Type Detail: Synchronous Speed: Unknown Manufacturer: Manufacturer1 Serial Number: SerNum1 buttet Tag: buttetTagNum1 Part Number: PartNum1 Handle 0x0043 DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00080000000 Ending Address: 0x000FFFFFFFF Range Size: 2 GB Physical Device Handle: 0x0042 Memory Array Mapped Address Handle: 0x003F Parbreastion Row Position: 1 Interleaved Data Depth: 1 Handle 0x0044 DMI type 17, 27 bytes. Memory Device Array Handle: 0x003E Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM2 Bank Locator: BANK2 Type: SDRAM Type Detail: Synchronous Speed: Unknown Manufacturer: Manufacturer2 Serial Number: SerNum2 buttet Tag: buttetTagNum2 Part Number: PartNum2 Handle 0x0045 DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00100000000 Ending Address: 0x0017FFFFFFF Range Size: 2 GB Physical Device Handle: 0x0044 Memory Array Mapped Address Handle: 0x003F Parbreastion Row Position: 1 Interleaved Data Depth: 1 Handle 0x0046 DMI type 17, 27 bytes. Memory Device Array Handle: 0x003E Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM3 Bank Locator: BANK3 Type: SDRAM Type Detail: Synchronous Speed: Unknown Manufacturer: Manufacturer3 Serial Number: SerNum3 buttet Tag: buttetTagNum3 Part Number: PartNum3 Handle 0x0047 DMI type 20, 19 bytes. Memory Device Mapped Address Starting Address: 0x00180000000 Ending Address: 0x001FFFFFFFF Range Size: 2 GB Physical Device Handle: 0x0046 Memory Array Mapped Address Handle: 0x003F Parbreastion Row Position: 1 Interleaved Data Depth: 1 Handle 0x0048 DMI type 32, 20 bytes. System Boot Information Status: No errors detected Handle 0x0049 DMI type 127, 4 bytes. End Of Table

the machine has four nvidia dualhead cards (yes, it has eight monitors connected to it.) Here is the output of lspci -v:

0000:00:00.0 Host bridge: Intel Corp.: Unknown device 277c (rev c0) Subsystem: Asustek Computer, Inc.: Unknown device 8178 Flags: bus master, fast devsel, latency 0

0000:00:01.0 PCI bridge: Intel Corp.: Unknown device 277d (rev c0) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=08, subordinate=08, sec-latency=0 I-O behind bridge: 0000d000-0000dfff Memory behind bridge: ebe00000-efefffff Prefetchable memory behind bridge: 00000000bf800000-00000000df700000

0000:00:03.0 PCI bridge: Intel Corp.: Unknown device 277a (rev c0) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=07, sec-latency=0 I-O behind bridge: 0000b000-0000cfff Memory behind bridge: e3c00000-ebdfffff Prefetchable memory behind bridge: 000000007f800000-00000000bf700000

0000:00:1c.0 PCI bridge: Intel Corp.: Unknown device 27d0 (rev 01) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I-O behind bridge: 0000a000-0000afff Memory behind bridge: dfb00000-e3bfffff Prefetchable memory behind bridge: 000000005f800000-000000007f700000

0000:00:1c.5 PCI bridge: Intel Corp.: Unknown device 27e2 (rev 01) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I-O behind bridge: 00009000-00009fff Memory behind bridge: dfa00000-dfafffff

0000:00:1d.0 USB Controller: Intel Corp.: Unknown device 27c8 (rev 01) (prog-if 00 UHCI) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0, IRQ 185 I-O ports at e480 size=32

0000:00:1d.1 USB Controller: Intel Corp.: Unknown device 27c9 (rev 01) (prog-if 00 UHCI) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0, IRQ 177 I-O ports at e800 size=32

0000:00:1d.2 USB Controller: Intel Corp.: Unknown device 27ca (rev 01) (prog-if 00 UHCI) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0, IRQ 193 I-O ports at e880 size=32

0000:00:1d.3 USB Controller: Intel Corp.: Unknown device 27cb (rev 01) (prog-if 00 UHCI) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0, IRQ 201 I-O ports at ec00 size=32

0000:00:1d.7 USB Controller: Intel Corp.: Unknown device 27cc (rev 01) (prog-if 20 EHCI) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0, IRQ 185 Memory at effffc00 (32-bit, non-prefetchable) size=1K

0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev e1) (prog-if 01 Subtractive decode) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=32 Memory behind bridge: df900000-df9fffff

0000:00:1f.0 ISA bridge: Intel Corp.: Unknown device 27b8 (rev 01) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: bus master, medium devsel, latency 0

0000:00:1f.2 IDE interface: Intel Corp.: Unknown device 27c0 (rev 01) (prog-if 80 Master) Subsystem: Asustek Computer, Inc.: Unknown device 2601 Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 209 I-O ports at ffa0 size=16

0000:00:1f.3 SMBus: Intel Corp.: Unknown device 27da (rev 01) Subsystem: Asustek Computer, Inc.: Unknown device 8179 Flags: medium devsel, IRQ 209 I-O ports at 1000 size=32

0000:01:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5701 Gigabit Ethernet (rev 15) Subsystem: 3Com Corporation 3C996B-T 1000Base-T Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 217 Memory at df9e0000 (64-bit, non-prefetchable) size=64K

0000:01:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22-A IEEE-1394a-2000 Controller (PHY-Link) (prog-if 10 OHCI) Subsystem: Asustek Computer, Inc.: Unknown device 815b Flags: bus master, medium devsel, latency 64, IRQ 225 Memory at df9ff800 (32-bit, non-prefetchable) size=2K Memory at df9f8000 (32-bit, non-prefetchable) size=16K

0000:02:00.0 RAID bus controller: Marvell Technology Group Ltd.: Unknown device 6145 (rev a1) (prog-if 8f) Subsystem: Asustek Computer, Inc.: Unknown device 8220 Flags: bus master, fast devsel, latency 0, IRQ 177 I-O ports at 9c00 size=8 I-O ports at 9880 size=4 I-O ports at 9800 size=8 I-O ports at 9480 size=4 I-O ports at 9400 size=16 Memory at dfaffc00 (32-bit, non-prefetchable) size=1K Expansion ROM at dfa80000 disabled size=256K

0000:03:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0295 (rev a1) (prog-if 00 VGA) Subsystem: Unknown device 3842:c635 Flags: bus master, fast devsel, latency 0, IRQ 168 plus 1 Memory at e2000000 (32-bit, non-prefetchable) size=16M Memory at 60000000 (64-bit, prefetchable) size=256M Memory at e1000000 (64-bit, non-prefetchable) size=16M I-O ports at ac00 size=128 Expansion ROM at e3be0000 disabled size=128K

0000:04:00.0 PCI bridge: Integrated Device Tech: Unknown device 801c (rev 02) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=04, secondary=05, subordinate=07, sec-latency=0 I-O behind bridge: 0000b000-0000cfff Memory behind bridge: e3c00000-ebdfffff Prefetchable memory behind bridge: 000000007f800000-00000000bf700000

0000:05:00.0 PCI bridge: Integrated Device Tech: Unknown device 801c (rev 02) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=05, secondary=06, subordinate=06, sec-latency=0 I-O behind bridge: 0000b000-0000bfff Memory behind bridge: e3c00000-e7cfffff Prefetchable memory behind bridge: 000000007f800000-000000009f700000

0000:05:01.0 PCI bridge: Integrated Device Tech: Unknown device 801c (rev 02) (prog-if 00 Normal decode) Flags: bus master, fast devsel, latency 0 Bus: primary=05, secondary=07, subordinate=07, sec-latency=0 I-O behind bridge: 0000c000-0000cfff Memory behind bridge: e7d00000-ebdfffff Prefetchable memory behind bridge: 000000009f800000-00000000bf700000

0000:06:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0295 (rev a1) (prog-if 00 VGA) Subsystem: Unknown device 3842:c635 Flags: fast devsel, IRQ 168 plus 1 Memory at e6000000 (32-bit, non-prefetchable) disabled size=16M Memory at 80000000 (64-bit, prefetchable) disabled size=256M Memory at e5000000 (64-bit, non-prefetchable) disabled size=16M I-O ports at bc00 disabled size=128 Expansion ROM at e7ce0000 disabled size=128K

0000:07:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0295 (rev a1) (prog-if 00 VGA) Subsystem: Unknown device 3842:c635 Flags: bus master, fast devsel, latency 0, IRQ 177 Memory at ea000000 (32-bit, non-prefetchable) size=16M Memory at a0000000 (64-bit, prefetchable) size=256M Memory at e9000000 (64-bit, non-prefetchable) size=16M I-O ports at cc00 size=128 Expansion ROM at ebde0000 disabled size=128K

0000:08:00.0 VGA compatible controller: nVidia Corporation: Unknown device 0295 (rev a1) (prog-if 00 VGA) Subsystem: Unknown device 3842:c635 Flags: bus master, fast devsel, latency 0, IRQ 168 plus 1 Memory at ee000000 (32-bit, non-prefetchable) size=16M Memory at c0000000 (64-bit, prefetchable) size=256M Memory at ed000000 (64-bit, non-prefetchable) size=16M I-O ports at dc00 size=128 Expansion ROM at efee0000 disabled size=128K

I hope now I provided enough info. First I didn't include them since I thought that this might be a known problem with a (hopefully) quick solution. Well, this was not the case.

Again, thanks for everybody for the effort. I will try to figure out what's wrong and post the results.

Vilmos