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Coreboot, amibios and dmidecode


Hi all,
I know some of the readers may have observed I haven’t been posting with the gusto that I normally do. Its in part due to a hdd failure which I have been experiencing. This post would be an attempt at my frustrations and experiences at getting some of the issues with things.

There have been two things which have been plaguing me/my motherboard for sometime now.

a. Not being able to use the usb 2.0 data transfer rates
b. Not being able to use the hdd as it should be.

The BIOS hasn’t being showing the 160 GB/145 GIB HDD

This is the output of my usb ports as it stands :-

$ lsusb
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 051d:0002 American Power Conversion Uninterruptible Power Supply
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

As can be seen the 4 are 1.1 ports except for the elusive one which is 2.0 one.

Doing a bit of research took me to the conclusion that its not my m/b but my BIOS which is to be blamed which goes back to the vendor (in my case Kobian a.k.a. Mercury)

Then in order to solve my issues, I took the help of a tool called dmidecode.

$ aptitude show dmidecode
Package: dmidecode
State: installed
Automatically installed: no
Version: 2.9-1ubuntu1
Priority: important
Section: utils
Maintainer: Ubuntu Core Developers
Uncompressed Size: 172k
Depends: libc6 (>= 2.6)
Conflicts: lm-sensors (< 2.8.1-2)
Description: Dump Desktop Management Interface data
The Desktop Management Interface provides a standardized description of a computer's hardware, including characteristics such as BIOS serial number and hardware connectors. dmidecode provides a dump of the DMI data available from the BIOS. It is used as a back-end tool by other hardware detection programs.

As can be seen its used to dump information the DMI data. Basically dumping information from your BIOS registers.

The following is the output that was dumped by dmidecode for my motherboard.


$ sudo dmidecode
[sudo] password for shirish:
# dmidecode 2.9
SMBIOS 2.3 present.
18 structures occupying 741 bytes.
Table at 0x000F0630.

Handle 0x0000, DMI type 0, 20 bytes
BIOS Information
Vendor: American Megatrends Inc.
Version: Version 07.00T
Release Date: 04/02/01
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 256 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″/360 KB floppy services are supported (int 13h)
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)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
AGP is supported
LS-120 boot is supported
ATAPI Zip drive boot is supported
BIOS boot specification is supported

Handle 0x0001, DMI type 1, 25 bytes
System Information
Manufacturer: KOBIAN
Product Name: PI845GLM
Version: 5.0
Serial Number: 00000000
UUID: Not Settable
Wake-up Type: Modem Ring

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
Manufacturer: KOBIAN
Product Name: PI845GLM
Version: 5.0
Serial Number: 00000000

Handle 0x0003, DMI type 3, 17 bytes
Chassis Information
Manufacturer: KOBIAN
Type: Desktop
Lock: Not Present
Version: 5.0
Serial Number: 00000000
Asset Tag: 0123ABC
Boot-up State: Unknown
Power Supply State: Unknown
Thermal State: Unknown
Security Status: Unknown
OEM Information: 0x00000000

Handle 0x0004, DMI type 4, 32 bytes
Processor Information
Socket Designation: FC-478
Type: Central Processor
Family: Pentium 4
Manufacturer: Intel
ID: 12 0F 07 7A FF FB EB 3F
Signature: Type 0, Family 175, Model 113, Stepping 2
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)
Version: Intel(R) Pentium(R) 4 Processor
Voltage: 3.3 V 2.9 V
External Clock: 100 MHz
Max Speed: 3000 MHz
Current Speed: 1800 MHz
Status: Populated, Enabled
Upgrade: Socket 478
L1 Cache Handle: 0x0005
L2 Cache Handle: 0x0006
L3 Cache Handle: Not Provided

Handle 0x0005, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal Cache
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 8 KB
Maximum Size: 1024 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Pipeline Burst Synchronous
Speed: 40 ns
Error Correction Type: Single-bit ECC
System Type: Data
Associativity: 4-way Set-associative

Handle 0x0006, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal Cache
Configuration: Disabled, Not Socketed, Level 2
Operational Mode: Write Back
Location: Internal
Installed Size: 256 KB
Maximum Size: 1024 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: 40 ns
Error Correction Type: Parity
System Type: Unified
Associativity: 8-way Set-associative

Handle 0x0007, DMI type 5, 20 bytes
Memory Controller Information
Error Detecting Method: None
Error Correcting Capabilities: None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 1024 MB
Maximum Total Memory Size: 2048 MB
Supported Speeds:
Other
Supported Memory Types:
DIMM
SDRAM
Memory Module Voltage: 3.3 V
Associated Memory Slots: 2
0x0008
0x0009
Enabled Error Correcting Capabilities: None

Handle 0x0008, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM1
Bank Connections: 1 0
Current Speed: Unknown
Type: DIMM SDRAM
Installed Size: 512 MB (Double-bank Connection)
Enabled Size: 512 MB (Double-bank Connection)
Error Status: OK

Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM2
Bank Connections: 3 2
Current Speed: Unknown
Type: DIMM SDRAM
Installed Size: 512 MB (Double-bank Connection)
Enabled Size: 512 MB (Double-bank Connection)
Error Status: OK

Handle 0x000A, DMI type 9, 13 bytes
System Slot Information
Designation: PCI1
Type: 32-bit PCI
Current Usage: In Use
Length: Long
ID: 1
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported

Handle 0x000B, DMI type 9, 13 bytes
System Slot Information
Designation: PCI2
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 2
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported

Handle 0x000C, DMI type 9, 13 bytes
System Slot Information
Designation: PCI3
Type: 32-bit PCI
Current Usage: Available
Length: Long
ID: 3
Characteristics:
3.3 V is provided
Opening is shared
PME signal is supported

Handle 0x000D, DMI type 11, 5 bytes
OEM Strings
String 1: SMBIOS Support from AMI
String 2: Tested by James

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: USB
Internal Connector Type: Mini Centronics
External Reference Designator: Def
External Connector Type: DB-25 male
Port Type: SSA SCSI

Handle 0x000F, DMI type 12, 5 bytes
System Configuration Options
Option 1: System Management BIOS from Atlanta
Option 2: SMBIOS from AMI

Handle 0x0010, DMI type 13, 22 bytes
BIOS Language Information
Installable Languages: 4
English
Traditional Chinese
Simplified Chinese
Japanese
Currently Installed Language: English

Handle 0x0011, DMI type 127, 4 bytes
End Of Table

That’s lot of output let’s look at the part which told me that the BIOS was really old.

$ sudo dmidecode
[sudo] password for shirish:
# dmidecode 2.9
SMBIOS 2.3 present.
18 structures occupying 741 bytes.
Table at 0x000F0630.

I looked up on the net and came to these two links

PC Pitstop

and

DMTF’s homepage

what was interesting is this Q&Amp;a from the pcpitstop page, especially this part.

How does incorrect SMBIOS affect my system?

Usually, it has no impact on functionality or performance. SMBIOS data is intended for use by inventory and diagnostic programs. Microsoft Windows does not depend on SMBIOS information to be able to run properly. However, incorrect SMBIOS data can be a sign that the system maker did not do some basic quality control. If they did not get the SMBIOS data right, there is certainly a chance that they made other mistakes.

As can be seen on the DMTF webpage, the last BIOS they still have info. on that page is v 2.3.1 (the latest being 2.6) which was up as a specification as early as 1999 while mine says 2.3 which obviously would be even earlier than that.

From what little I know, once the specification is there, the motherboard vendor would flash it on the motherboard. Even giving something like a year or 2 years it comes to 2001.

A good background read on this can be had on the wikipedia page

The problem however is that there was a 129 GiB limit for hdd in the BIOS as late as 2001. You can find some of the info. about the same at the 48lba site as well.

What was also disturbing to me is some information such as serial number of the motherboard was not available.


$ sudo dmidecode --type 2
[sudo] password for shirish:
# dmidecode 2.9
SMBIOS 2.3 present.

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
Manufacturer: KOBIAN
Product Name: PI845GLM
Version: 5.0
Serial Number: 00000000

To compare I asked around if some of the people would be good enough to give me some outputs of dmidecode so I can know how things stand. Much to my surprise, the branded systems actually fared better in the process😦


# dmidecode 2.8
SMBIOS 2.4 present.
68 structures occupying 2250 bytes.
Table at 0x000E0010.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
Vendor: LENOVO
Version: 79ETD2WW (2.12 )
Release Date: 04/12/2007
Address: 0xDC000
Runtime Size: 144 kB
ROM Size: 2048 kB
Characteristics:
PCI is supported
PC Card (PCMCIA) is supported
PNP 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
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
BIOS Revision: 2.18
Firmware Revision: 1.7

Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: LENOVO
Product Name: 2007FSG
Version: ThinkPad T60
Serial Number: L3FD998
UUID: AC51D080-4869-11CB-A46B-D6F46D40E713
Wake-up Type: Power Switch
SKU Number: Not Specified
Family: ThinkPad T60

Handle 0x0002, DMI type 2, 8 bytes
Base Board Information
Manufacturer: LENOVO
Product Name: 2007FSG
Version: Not Available
Serial Number: VF0C567V1L1

Handle 0x0003, DMI type 3, 13 bytes
Chassis Information
Manufacturer: LENOVO
Type: Notebook
Lock: Not Present
Version: Not Available
Serial Number: Not Available
Asset Tag: No Asset Information
Boot-up State: Unknown
Power Supply State: Unknown
Thermal State: Unknown
Security Status: Unknown

Handle 0x0004, DMI type 126, 13 bytes
Inactive

Handle 0x0005, DMI type 126, 13 bytes
Inactive

Handle 0x0006, DMI type 4, 35 bytes
Processor Information
Socket Designation: None
Type: Central Processor
Family: Other
Manufacturer: GenuineIntel
ID: E8 06 00 00 FF FB E9 BF
Version: Genuine Intel(R) CPU
Voltage: 1.4 V
External Clock: 167 MHz
Max Speed: 1833 MHz
Current Speed: 1833 MHz
Status: Populated, Enabled
Upgrade: None
L1 Cache Handle: 0x000A
L2 Cache Handle: 0x000C
L3 Cache Handle: Not Provided
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified

Handle 0x0007, DMI type 5, 20 bytes
Memory Controller Information
Error Detecting Method: None
Error Correcting Capabilities:
None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 2048 MB
Maximum Total Memory Size: 4096 MB
Supported Speeds:
Other
Supported Memory Types:
DIMM
SDRAM
Memory Module Voltage: 2.9 V
Associated Memory Slots: 2
0x0008
0x0009
Enabled Error Correcting Capabilities:
Unknown

Handle 0x0008, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM Slot 1
Bank Connections: 0 3
Current Speed: Unknown
Type: DIMM SDRAM
Installed Size: 1024 MB (Double-bank Connection)
Enabled Size: 1024 MB (Double-bank Connection)
Error Status: OK

Handle 0x0009, DMI type 6, 12 bytes
Memory Module Information
Socket Designation: DIMM Slot 2
Bank Connections: 4 7
Current Speed: Unknown
Type: DIMM SDRAM
Installed Size: Not Installed
Enabled Size: Not Installed
Error Status: OK

Handle 0x000A, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal L1 Cache
Configuration: Enabled, Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 64 KB
Maximum Size: 64 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Instruction
Associativity: 8-way Set-associative

Handle 0x000B, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal L1 Cache
Configuration: Enabled, Socketed, Level 1
Operational Mode: Write Back
Location: Internal
Installed Size: 64 KB
Maximum Size: 64 KB
Supported SRAM Types:
Synchronous
Installed SRAM Type: Synchronous
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Data
Associativity: 8-way Set-associative

Handle 0x000C, DMI type 7, 19 bytes
Cache Information
Socket Designation: Internal L2 Cache
Configuration: Enabled, Socketed, Level 2
Operational Mode: Write Back
Location: Internal
Installed Size: 2048 KB
Maximum Size: 2048 KB
Supported SRAM Types:
Burst
Installed SRAM Type: Burst
Speed: Unknown
Error Correction Type: Single-bit ECC
System Type: Unified
Associativity: 8-way Set-associative

Handle 0x000D, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: Infrared
External Connector Type: Infrared
Port Type: Other

Handle 0x000E, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: External Monitor
External Connector Type: DB-15 female
Port Type: Video Port

Handle 0x000F, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: Microphone Jack
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port

Handle 0x0010, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: Headphone Jack
External Connector Type: Mini Jack (headphones)
Port Type: Audio Port

Handle 0x0011, DMI type 126, 9 bytes
Inactive

Handle 0x0012, DMI type 126, 9 bytes
Inactive

Handle 0x0013, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: Modem
External Connector Type: RJ-11
Port Type: Modem Port

Handle 0x0014, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: Ethernet
External Connector Type: RJ-45
Port Type: Network Port

Handle 0x0015, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: USB 1
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x0016, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: USB 2
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x0017, DMI type 8, 9 bytes
Port Connector Information
Internal Reference Designator: Not Available
Internal Connector Type: None
External Reference Designator: USB 3
External Connector Type: Access Bus (USB)
Port Type: USB

Handle 0x0018, DMI type 126, 9 bytes
Inactive

Handle 0x0019, DMI type 126, 9 bytes
Inactive

Handle 0x001A, DMI type 126, 9 bytes
Inactive

Handle 0x001B, DMI type 126, 9 bytes
Inactive

Handle 0x001C, DMI type 126, 9 bytes
Inactive

Handle 0x001D, DMI type 126, 9 bytes
Inactive

Handle 0x001E, DMI type 126, 9 bytes
Inactive

Handle 0x001F, DMI type 126, 9 bytes
Inactive

Handle 0x0020, DMI type 9, 13 bytes
System Slot Information
Designation: ExpressCard Slot 1
Type: x1 PCI Express
Current Usage: Available
Length: Other
Characteristics:
Hot-plug devices are supported

Handle 0x0021, DMI type 9, 13 bytes
System Slot Information
Designation: CardBus Slot 1
Type: 32-bit PC Card (PCMCIA)
Current Usage: Available
Length: Other
ID: Adapter 1, Socket 0
Characteristics:
5.0 V is provided
3.3 V is provided
PC Card-16 is supported
Cardbus is supported
Zoom Video is supported
Modem ring resume is supported
PME signal is supported
Hot-plug devices are supported

Handle 0x0022, DMI type 126, 13 bytes
Inactive

Handle 0x0023, DMI type 126, 13 bytes
Inactive

Handle 0x0024, DMI type 126, 13 bytes
Inactive

Handle 0x0025, DMI type 10, 6 bytes
On Board Device Information
Type: Other
Status: Enabled
Description: IBM Embedded Security hardware

Handle 0x0026, DMI type 11, 5 bytes
OEM Strings
String 1: IBM ThinkPad Embedded Controller -[79HT50WW-1.07 ]-

Handle 0x0027, DMI type 13, 22 bytes
BIOS Language Information
Installable Languages: 1
enUS
Currently Installed Language: enUS

Handle 0x0028, DMI type 15, 25 bytes
System Event Log
Area Length: 0 bytes
Header Start Offset: 0x0000
Header Length: 16 bytes
Data Start Offset: 0x0010
Access Method: General-purpose non-volatile data functions
Access Address: 0x0000
Status: Invalid, Invalid
Change Token: 0x000000FF
Header Format: Type 1
Supported Log Type Descriptors: 1
Descriptor 1: POST error
Data Format 1: POST results bitmap

Handle 0x0029, DMI type 16, 15 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 2 GB
Error Information Handle: Not Provided
Number Of Devices: 2

Handle 0x002A, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0029
Error Information Handle: No Error
Total Width: 64 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: SODIMM
Set: None
Locator: DIMM 1
Bank Locator: Bank 0/1
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer: Not Specified
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified

Handle 0x002B, DMI type 17, 27 bytes
Memory Device
Array Handle: 0x0029
Error Information Handle: No Error
Total Width: Unknown
Data Width: Unknown
Size: No Module Installed
Form Factor: SODIMM
Set: None
Locator: DIMM 2
Bank Locator: Bank 2/3
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer: Not Specified
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified

Handle 0x002C, DMI type 18, 23 bytes
32-bit Memory Error Information
Type: OK
Granularity: Unknown
Operation: Unknown
Vendor Syndrome: Unknown
Memory Array Address: Unknown
Device Address: Unknown
Resolution: Unknown

Handle 0x002D, DMI type 19, 15 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0003FFFFFFF
Range Size: 1 GB
Physical Array Handle: 0x0029
Partition Width: 0

Handle 0x002E, DMI type 20, 19 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x0003FFFFFFF
Range Size: 1 GB
Physical Device Handle: 0x002A
Memory Array Mapped Address Handle: 0x002D
Partition Row Position: 1

Handle 0x002F, DMI type 126, 19 bytes
Inactive

Handle 0x0030, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Track Point
Interface: PS/2
Buttons: 3

Handle 0x0031, DMI type 21, 7 bytes
Built-in Pointing Device
Type: Touch Pad
Interface: PS/2
Buttons: 0

Handle 0x0032, DMI type 24, 5 bytes
Hardware Security
Power-On Password Status: Enabled
Keyboard Password Status: Disabled
Administrator Password Status: Disabled
Front Panel Reset Status: Unknown

Handle 0x0033, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected

Handle 0x0034, DMI type 131, 17 bytes
OEM-specific Type
Header and Data:
83 11 34 00 01 02 03 FF FF 1F 00 00 00 00 00 02
00
Strings:
BOOTINF 20h
BOOTDEV 21h
KEYPTRS 23h

Handle 0x0035, DMI type 131, 11 bytes
OEM-specific Type
Header and Data:
83 0B 35 00 00 00 E8 FF C5 01 01
Strings:
IBM System Metrics

Handle 0x0036, DMI type 131, 22 bytes
OEM-specific Type
Header and Data:
83 16 36 00 01 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 01
Strings:
TVT-Enablement

Handle 0x0037, DMI type 132, 7 bytes
OEM-specific Type
Header and Data:
84 07 37 00 02 DA 36

Handle 0x0038, DMI type 133, 5 bytes
OEM-specific Type
Header and Data:
85 05 38 00 01
Strings:
KHOIHGIUCCHHII

Handle 0x0039, DMI type 133, 17 bytes
OEM-specific Type
Header and Data:
85 11 39 00 30 30 2E 35 00 60 EF 3F 00 00 00 00
01
Strings:
Audit Boot History

Handle 0x003A, DMI type 134, 13 bytes
OEM-specific Type
Header and Data:
86 0D 3A 00 03 08 06 20 00 00 00 00 00

Handle 0x003B, DMI type 134, 16 bytes
OEM-specific Type
Header and Data:
86 10 3B 00 00 41 54 4D 4C 01 01 00 00 03 01 02
Strings:
TPM INFO
System Reserved

Handle 0x003C, DMI type 135, 13 bytes
OEM-specific Type
Header and Data:
87 0D 3C 00 54 50 07 00 01 00 00 00 00

Handle 0x003D, DMI type 135, 18 bytes
OEM-specific Type
Header and Data:
87 12 3D 00 54 50 07 01 01 A3 01 00 00 00 00 00
00 00

Handle 0x003E, DMI type 135, 35 bytes
OEM-specific Type
Header and Data:
87 23 3E 00 54 50 07 02 42 41 59 20 49 2F 4F 20
01 00 02 00 00 0B 00 C8 18 AE 18 02 00 0E 00 F0
01 F6 03

Handle 0x003F, DMI type 136, 6 bytes
OEM-specific Type
Header and Data:
88 06 3F 00 5A 5A

Handle 0x0040, DMI type 137, 28 bytes
OEM-specific Type
Header and Data:
89 1C 40 00 0C 02 00 01 01 00 00 01 50 57 4D 53
20 49 6E 66 6F 72 6D 61 74 69 6F 6E

Handle 0x0041, DMI type 138, 40 bytes
OEM-specific Type
Header and Data:
8A 28 41 00 14 01 02 01 40 02 01 40 02 01 40 02
01 40 00 00 42 49 4F 53 20 50 61 73 73 77 6F 72
64 20 46 6F 72 6D 61 74

Handle 0x0042, DMI type 139, 37 bytes
OEM-specific Type
Header and Data:
8B 25 42 00 11 01 0A 00 00 00 00 00 00 00 00 00
00 50 57 4D 53 20 4B 65 79 20 49 6E 66 6F 72 6D
61 74 69 6F 6E

Handle 0x0043, DMI type 127, 4 bytes
End Of Table

This is of a laptop lappy, obviously of a newer SMBIOS. Isn’t it sweet🙂😦

While researching, apart from Award, AMIBIOS and Phoenix also chanced upon coreboot (again) and these guys have really grown up.

They also now have had instructions how to use coreboot to get some info. to them and start hacking on the m/b.

On your GNU/Linux system do the following :-

$ sudo aptitude install subversion
$ svn co svn://coreboot.org/repos/trunk/coreboot-v2

Then give output of all the utilities to the mailing list


$ cd coreboot-v2/util/getpir/
$ make
$ sudo ./getpir

getpir should generate a file called irqtables.c which could be
sent to the mailing list.

Also


$ cd coreboot-v2/util/mptable/
$ make
$ sudo ./mptable > mptable.txt

Another file mptable which could also be sent to the mailing list.

Lastly, all the other info. one can provide :-


$ sudo apt-get install superiotool
$ sudo superiotool -dV > superiotool-dV.txt
$ sudo dmidecode > dmidecode.txt
$ sudo dmidecode --dump > dmidecode-dump.txt
$ lspci -tvnn > lspci-tvnn.txt
$ sudo lshw > lshw.txt

Needless to say, all the files being generated i.e. superiotool-dV.txt, dmidecode.txt, dmidecode-dump.txt, lspci-tvnn.txt and lshw.txt needs to be sent to the mailing list.

Now PLEASE send this information to the coreboot mailing list only if you are seriously thinking or working towards having coreboot as your BIOS on the motherboard.


http://www.coreboot.org/mailman/listinfo/coreboot

This could turn out to be a hobbyist/small business for hardware hackers who could use the same to give bit more life to their and their friends/clients motherboards as well. Also could be a project for hardware/software engineers as well🙂

The benefits of a better BIOS is faster boot-up (2 secs, this is 32 bit) and freedom at its best🙂

Just so you guys know, I am just a very casual observer of coreboot and wish the project lots of luck🙂

Comments, suggestions all welcome.

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