cpufreq: shouldn't scaling_min_freq be lower?

From: Thomas Bettler
Date: Sun Dec 05 2004 - 17:08:17 EST

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I'm running a two year old Thinkpad R32. P4-M 1.8 GHz.

In the beginning there was a Windoze on it. The cpufreq varied from 1800 to
120MHz

When I didn't run X, I also observed sometimes (don't know why) the freq
dropping down to 200MHz on Linux 2.6 kernel some months ago.

Anyway ACPI works like that:
/sys/devices/system/cpu/cpu0/cpu_min_freq: 1200000 (1.2G)
/sys/devices/system/cpu/cpu0/cpu_max_freq: 1800000 (1.8G)

How can I control the cpufreq below cpu_min_freq
I would like to get this feature handy, for longer battery runtime. Is there
an possibility to manage this?

Thanks for all you help.

Infos in the Attachment. Need more? Just ask.

Thomas Bettler
Linux version 2.6.9-gentoo-r9+win4lin (root@debox) (gcc version 3.3.4 20040623 (Gentoo Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) #2 Sat Dec 4 10:55:32 CET 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000d0000 - 00000000000d4000 (reserved)
BIOS-e820: 00000000000dc000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001ff70000 (usable)
BIOS-e820: 000000001ff70000 - 000000001ff7e000 (ACPI data)
BIOS-e820: 000000001ff7e000 - 000000001ff80000 (ACPI NVS)
BIOS-e820: 000000001ff80000 - 0000000020000000 (reserved)
BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved)
511MB LOWMEM available.
On node 0 totalpages: 130928
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 126832 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI present.
ACPI: RSDP (v002 IBM ) @ 0x000f7120
ACPI: XSDT (v001 IBM TP-1M 0x00002110 LTP 0x00000000) @ 0x1ff7745f
ACPI: FADT (v001 IBM TP-1M 0x00002110 IBM 0x00000001) @ 0x1ff774ab
ACPI: SSDT (v001 IBM TP-1M 0x00002110 MSFT 0x0100000d) @ 0x1ff7755f
ACPI: ECDT (v001 IBM TP-1M 0x00002110 IBM 0x00000001) @ 0x1ff7df54
ACPI: TCPA (v001 IBM TP-1M 0x00002110 PTL 0x00000001) @ 0x1ff7dfa6
ACPI: BOOT (v001 IBM TP-1M 0x00002110 LTP 0x00000001) @ 0x1ff7dfd8
ACPI: DSDT (v001 IBM TP-1M 0x00002110 MSFT 0x0100000d) @ 0x00000000
ACPI: PM-Timer IO Port: 0x1008
Built 1 zonelists
Kernel command line: root=/dev/hda2 video=vesafb:ywrap,mtrr vga=0x317 splash=silent,theme:emergence resume=/dev/hda3 ide0=dma ide1=dma ide2=noprobe ide3=noprobe ide4=noprobe ide5=noprobe
fbsplash: silent
fbsplash: theme emergence
ide_setup: ide0=dma
ide_setup: ide1=dma
ide_setup: ide2=noprobe
ide_setup: ide3=noprobe
ide_setup: ide4=noprobe
ide_setup: ide5=noprobe
No local APIC present or hardware disabled
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 32768 bytes)
Detected 1800.005 MHz processor.
Using pmtmr for high-res timesource
Console: colour dummy device 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 512792k/523712k available (3259k kernel code, 10332k reserved, 1049k data, 168k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3563.52 BogoMIPS (lpj=1781760)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: bfebf9ff 00000000 00000000 00000000
CPU: After vendor identify, caps: bfebf9ff 00000000 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: After all inits, caps: bfebf9ff 00000000 00000000 00000080
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
CPU: Intel Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz stepping 07
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ACPI: IRQ9 SCI: Edge set to Level Trigger.
checking if image is initramfs... it is
Freeing initrd memory: 588k freed
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfd91e, last bus=5
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040816
ACPI: Found ECDT
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 *11)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 9 10 11) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 5 6 7 9 10 11) *0, disabled.
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 10 11) *0, disabled.
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: Embedded Controller [EC] (gpe 28)
ACPI: Power Resource [PUBS] (on)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGP_._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCI1._PRT]
Linux Plug and Play Support v0.97 (c) Adam Belay
PnPBIOS: Scanning system for PnP BIOS support...
PnPBIOS: Found PnP BIOS installation structure at 0xc00f7150
PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0x9f4b, dseg 0x400
PnPBIOS: 19 nodes reported by PnP BIOS; 19 recorded by driver
Linux Kernel Card Services
options: [pci] [cardbus] [pm]
PCI: Using ACPI for IRQ routing
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1f.3[B] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:00:1f.6[B] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI Interrupt Link [LNKE] enabled at IRQ 11
ACPI: PCI interrupt 0000:02:07.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:02:08.0[A] -> GSI 11 (level, low) -> IRQ 11
ACPI: PCI interrupt 0000:02:09.0[A] -> GSI 11 (level, low) -> IRQ 11
pnp: 00:0b: ioport range 0x4d0-0x4d1 has been reserved
pnp: 00:0b: ioport range 0x1000-0x105f could not be reserved
pnp: 00:0b: ioport range 0x1060-0x107f has been reserved
pnp: 00:0b: ioport range 0x1180-0x11bf has been reserved
Simple Boot Flag at 0x35 set to 0x1
Machine check exception polling timer started.
IA-32 Microcode Update Driver: v1.14 <tigran@xxxxxxxxxxx>
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx).
SGI XFS with large block numbers, no debug enabled
Initializing Cryptographic API
inotify init: minor=63
Real Time Clock Driver v1.12
Non-volatile memory driver v1.2
hw_random hardware driver 1.0.0 loaded
Linux agpgart interface v0.100 (c) Dave Jones
agpgart: Detected an Intel i845 Chipset.
agpgart: Maximum main memory to use for agp memory: 439M
agpgart: AGP aperture is 64M @ 0xe0000000
ACPI: PCI interrupt 0000:01:00.0[A] -> GSI 11 (level, low) -> IRQ 11
[drm] Initialized radeon 1.11.0 20020828 on minor 0: ATI Technologies Inc Radeon Mobility M6 LY
vesafb: framebuffer at 0xe8000000, mapped to 0xe0900000, size 3072k
vesafb: mode is 1024x768x16, linelength=2048, pages=9
vesafb: protected mode interface info at c000:530f
vesafb: pmi: set display start = c00c53a3, set palette = c00c53ef
vesafb: pmi: ports = 3010 3016 3054 3038 303c 305c 3000 3004 30b0 30b2 30b4
vesafb: scrolling: ywrap using protected mode interface, yres_virtual=1536
vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0
Console: switching to colour frame buffer device 128x48
fbsplash: console 0 using theme 'emergence'
fbsplash: switched splash state to 'on' on console 0
fb0: VESA VGA frame buffer device
ACPI: AC Adapter [AC] (on-line)
ACPI: Battery Slot [BAT0] (battery present)
ACPI: Battery Slot [BAT1] (battery absent)
ACPI: Power Button (FF) [PWRF]
ACPI: Lid Switch [LID]
ACPI: Sleep Button (CM) [SLPB]
ACPI: Processor [CPU] (supports C1 C2 C3, 8 throttling states)
ACPI: Thermal Zone [THM0] (60 C)
ACPI: Thermal Zone [THM1] (50 C)
i8042.c: Detected active multiplexing controller, rev 1.1.
serio: i8042 AUX0 port at 0x60,0x64 irq 12
serio: i8042 AUX1 port at 0x60,0x64 irq 12
serio: i8042 AUX2 port at 0x60,0x64 irq 12
serio: i8042 AUX3 port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
input: AT Translated Set 2 keyboard on isa0060/serio0
fbsplash: switching to verbose mode
input: PS/2 Generic Mouse on isa0060/serio4
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
loop: loaded (max 8 devices)
e100: Intel(R) PRO/100 Network Driver, 3.0.27-k2-NAPI
e100: Copyright(c) 1999-2004 Intel Corporation
ACPI: PCI interrupt 0000:02:08.0[A] -> GSI 11 (level, low) -> IRQ 11
e100: eth0: e100_probe: addr 0xd0200000, irq 11, MAC addr 00:00:E2:97:DB:71
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH3M: IDE controller at PCI slot 0000:00:1f.1
PCI: Enabling device 0000:00:1f.1 (0005 -> 0007)
ACPI: PCI interrupt 0000:00:1f.1[A] -> GSI 11 (level, low) -> IRQ 11
ICH3M: chipset revision 2
ICH3M: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x1860-0x1867, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0x1868-0x186f, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
hda: IC25N040ATMR04-0, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: HL-DT-STCD-RW/DVD DRIVE GCC-4240N, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 78140160 sectors (40007 MB) w/1740KiB Cache, CHS=65535/16/63, UDMA(100)
hda: cache flushes supported
hda: hda1 hda2 hda3 hda4 < hda5 hda6 >
hdc: ATAPI 24X DVD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
ip_conntrack version 2.1 (4091 buckets, 32728 max) - 176 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
NET: Registered protocol family 1
NET: Registered protocol family 17
p4-clockmod: P4/Xeon(TM) CPU On-Demand Clock Modulation available
ACPI wakeup devices:
LID SLPB PCI0 UART OBLN USB0 USB1 USB2 AC97
ACPI: (supports S0 S3 S4 S5)
ReiserFS: hda2: found reiserfs format "3.6" with standard journal
ReiserFS: hda2: using ordered data mode
ReiserFS: hda2: journal params: device hda2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda2: checking transaction log (hda2)
ReiserFS: hda2: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem) readonly.
Freeing unused kernel memory: 168k freed
Adding 498952k swap on /dev/hda3. Priority:-1 extents:1
ibm_acpi: IBM ThinkPad ACPI Extras v0.7
ibm_acpi: http://ibm-acpi.sf.net/
Universal TUN/TAP device driver 1.5 (C)1999-2002 Maxim Krasnyansky
parport: PnPBIOS parport detected.
parport0: PC-style at 0x3bc (0x7bc), irq 7 [PCSPP(,...)]
lp0: using parport0 (interrupt-driven).
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ub: sizeof ub_scsi_cmd 60 ub_dev 924
usbcore: registered new driver ub
ReiserFS: hda5: found reiserfs format "3.6" with standard journal
ReiserFS: hda5: using ordered data mode
ReiserFS: hda5: journal params: device hda5, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda5: checking transaction log (hda5)
ReiserFS: hda5: Using r5 hash to sort names
USB Universal Host Controller Interface driver v2.2
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 11 (level, low) -> IRQ 11
uhci_hcd 0000:00:1d.0: Intel Corp. 82801CA/CAM USB (Hub #1)
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: irq 11, io base 00001800
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 11 (level, low) -> IRQ 11
uhci_hcd 0000:00:1d.1: Intel Corp. 82801CA/CAM USB (Hub #2)
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: irq 11, io base 00001820
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 11 (level, low) -> IRQ 11
uhci_hcd 0000:00:1d.2: Intel Corp. 82801CA/CAM USB (Hub #3)
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: irq 11, io base 00001840
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
usb 2-1: new low speed USB device using address 2
usbcore: registered new driver hiddev
input: USB HID v1.10 Keyboard [Logitech USB Receiver] on usb-0000:00:1d.1-1
input: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:00:1d.1-1
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
ACPI: PCI interrupt 0000:00:1f.5[B] -> GSI 11 (level, low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:1f.5 to 64
0000:00:00.0 Host bridge: Intel Corp. 82845 845 (Brookdale) Chipset Host Bridge (rev 04)
0000:00:01.0 PCI bridge: Intel Corp. 82845 845 (Brookdale) Chipset AGP Bridge (rev 04)
0000:00:1d.0 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #1) (rev 02)
0000:00:1d.1 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #2) (rev 02)
0000:00:1d.2 USB Controller: Intel Corp. 82801CA/CAM USB (Hub #3) (rev 02)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 Mobile PCI Bridge (rev 42)
0000:00:1f.0 ISA bridge: Intel Corp. 82801CAM ISA Bridge (LPC) (rev 02)
0000:00:1f.1 IDE interface: Intel Corp. 82801CAM IDE U100 (rev 02)
0000:00:1f.3 SMBus: Intel Corp. 82801CA/CAM SMBus Controller (rev 02)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801CA/CAM AC'97 Audio Controller (rev 02)
0000:00:1f.6 Modem: Intel Corp. 82801CA/CAM AC'97 Modem Controller (rev 02)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M6 LY
0000:02:07.0 Network controller: Intersil Corporation Prism 2.5 Wavelan chipset (rev 01)
0000:02:08.0 Ethernet controller: Intel Corp. 82801CAM (ICH3) PRO/100 VE (LOM) Ethernet Controller (rev 42)
0000:02:09.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 02)
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz
stepping : 7
cpu MHz : 1800.005
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid
bogomips : 3563.52

Attachment: config.gz
Description: GNU Zip compressed data

x86info v1.12b. Dave Jones 2001-2003
Feedback to <davej@xxxxxxxxxx>.

Found 1 CPU
--------------------------------------------------------------------------
eax in: 0x00000000, eax = 00000002 ebx = 756e6547 ecx = 6c65746e edx = 49656e69
eax in: 0x00000001, eax = 00000f27 ebx = 0001080e ecx = 00000400 edx = bfebf9ff
eax in: 0x00000002, eax = 665b5101 ebx = 00000000 ecx = 00000000 edx = 007b7040

eax in: 0x80000000, eax = 80000004 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x80000001, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000
eax in: 0x80000002, eax = 4d202020 ebx = 6c69626f ecx = 6e492065 edx = 286c6574
eax in: 0x80000003, eax = 50202952 ebx = 69746e65 ecx = 52286d75 edx = 20342029
eax in: 0x80000004, eax = 204d202d ebx = 20555043 ecx = 30382e31 edx = 007a4847

Family: 15 Model: 2 Stepping: 7 Type: 0 Brand: 14
CPU Model: Pentium 4 (Northwood) [C1] Original OEM
Processor name string: Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz

Feature flags:
Onboard FPU
Virtual Mode Extensions
Debugging Extensions
Page Size Extensions
Time Stamp Counter
Model-Specific Registers
Physical Address Extensions
Machine Check Architecture
CMPXCHG8 instruction
SYSENTER/SYSEXIT
Memory Type Range Registers
Page Global Enable
Machine Check Architecture
CMOV instruction
Page Attribute Table
36-bit PSEs
CLFLUSH instruction
Debug Trace Store
ACPI via MSR
MMX support
FXSAVE and FXRESTORE instructions
SSE support
SSE2 support
CPU self snoop
Hyper-Threading
Automatic clock Control
Pending Break Enable

Extended feature flags:
cntx-id
Pentium 4 specific MSRs:
IA32_PLATFORM_ID=000e000000000000
System bus in order queue depth=12
MSR_EBC_FREQUENCY_ID=000000000c300612
IA32_BIOS_SIGN_ID=0000002600000000
Processor serial number is enabled
Fast strings are enabled
x87 FPU Fopcode compatability mode is disabled
Thermal monitor is enabled
Split lock is enabled

Instruction TLB: 4K, 2MB or 4MB pages, fully associative, 128 entries.
Data TLB: 4KB or 4MB pages, fully associative, 64 entries.
L1 Data cache:
Size: 8KB Sectored, 4-way associative.
line size=64 bytes.
No level 2 cache or no level 3 cache if valid 2nd level cache.
Instruction trace cache:
Size: 12K uOps 8-way associative.
L2 unified cache:
Size: 512KB Sectored, 8-way associative.
line size=64 bytes.

Number of reporting banks : 4

Number of extended MC registers : 12

Bank: 0 (0x400)
MC0CTL: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
MC0STATUS: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
MC0ADDR: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000

Bank: 1 (0x404)
MC1CTL: 00000000 00000000 00000000 00000000
00000000 00000011 10000000 00000000
MC1STATUS: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
MC1ADDR: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000

Bank: 2 (0x408)
MC2CTL: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 10000000
MC2STATUS: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
MC2ADDR: Couldn't read MSR 0x40a

Bank: 3 (0x40c)
MC3CTL: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 01111110
MC3STATUS: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000
MC3ADDR: 00000000 00000000 00000000 00000000
00000000 00000000 00000000 00000000

Number of logical processors supported within the physical package: 0

Microcode version: 0x0000000000000026

Connector type: Socket478 (PGA478 Socket)

Datasheet: http://developer.intel.com/design/pentium4/datashts/24988703.pdf
http://developer.intel.com/design/pentium4/datashts/29864304.pdf
Errata: http://developer.intel.com/design/pentium4/specupdt/24919928.pdf

MTRR registers:
MTRRcap (0xfe): 0x0000000000000508
MTRRphysBase0 (0x200): 0x0000000000000006
MTRRphysMask0 (0x201): 0x0000000fe0000800
MTRRphysBase1 (0x202): 0x000000001ff80000
MTRRphysMask1 (0x203): 0x0000000ffff80800
MTRRphysBase2 (0x204): 0x00000000e0000001
MTRRphysMask2 (0x205): 0x0000000ffc000800
MTRRphysBase3 (0x206): 0x00000000e8000001
MTRRphysMask3 (0x207): 0x0000000fffe00800
MTRRphysBase4 (0x208): 0x0000000000000000
MTRRphysMask4 (0x209): 0x0000000000000000
MTRRphysBase5 (0x20a): 0x0000000000000000
MTRRphysMask5 (0x20b): 0x0000000000000000
MTRRphysBase6 (0x20c): 0x0000000000000000
MTRRphysMask6 (0x20d): 0x0000000000000000
MTRRphysBase7 (0x20e): 0x0000000000000000
MTRRphysMask7 (0x20f): 0x0000000000000000
MTRRfix64K_00000 (0x250): 0x0606060606060606
MTRRfix16K_80000 (0x258): 0x0606060606060606
MTRRfix16K_A0000 (0x259): 0x0000000000000000
MTRRfix4K_C8000 (0x269): 0x0505050505050505
MTRRfix4K_D0000 0x26a: 0x0000000000000000
MTRRfix4K_D8000 0x26b: 0x0606060600000000
MTRRfix4K_E0000 0x26c: 0x0505050505050505
MTRRfix4K_E8000 0x26d: 0x0505050505050505
MTRRfix4K_F0000 0x26e: 0x0505050505050505
MTRRfix4K_F8000 0x26f: 0x0505050505050505
MTRRdefType (0x2ff): 0x0000000000000c00

1.2Ghz processor (estimate).

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