Hello,
I would like to know if my motherboard is or could be supported by coreboot. Thanks :)
I was inspired from http://www.coreboot.org/pipermail/coreboot/2010-April/057128.html because I didn't find the answer of this mail so sorry if you've already answer for this motherboard.
( Sorry if I didn't do the right things, it's my first mailing list. )

Step 1:
My motherboard is a MSI-7091 (OEM-Board by MEDION) socket 775.
The CPU is an Intel Pentium 4 524 3.06 Ghz with Hyperthreading.
I found the Host bridge : Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub
The PCI Bridge : Intel Corporation 82915G/P/GV/GL/PL/910GL PCI Express Root Port
Another PCI Bridge : Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) PCI Express Port 1
A third PCI Bridge : Intel Corporation 82801 PCI Bridge
An ISA Bridge : Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge
A SMBUS : Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller
My System Operation is in 64 bits.

Step 2 :
-[0000:00]-+-00.0  Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub [8086:2580]
           +-01.0-[01]--+-00.0  Advanced Micro Devices [AMD] nee ATI Turks [Radeon HD 6670] [1002:6758]
           |            \-00.1  Advanced Micro Devices [AMD] nee ATI Turks HDMI Audio [Radeon HD 6000 Series] [1002:aa90]
           +-1b.0  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller [8086:2668]
           +-1c.0-[02]--
           +-1d.0  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #1 [8086:2658]
           +-1d.1  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #2 [8086:2659]
           +-1d.2  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 [8086:265a]
           +-1d.3  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #4 [8086:265b]
           +-1d.7  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB2 EHCI Controller [8086:265c]
           +-1e.0-[03]--+-03.0  VIA Technologies, Inc. VT6306/7/8 [Fire II(M)] IEEE 1394 OHCI Controller [1106:3044]
           |            \-06.0  VIA Technologies, Inc. VT6105/VT6106S [Rhine-III] [1106:3106]
           +-1f.0  Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC Interface Bridge [8086:2640]
           +-1f.1  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) IDE Controller [8086:266f]
           +-1f.2  Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA Controller [8086:2651]
           \-1f.3  Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) SMBus Controller [8086:266a]


Step 3 :
My Super I/O chip : WinBond W83637HF
( I found it from dmesg : [    0.488787] w83627hf: w83627hf: Found W83637HF chip at 0x290 )

superiotool r
Probing for ALi Super I/O at 0x3f0...
  Failed. Returned data: id=0xffff, rev=0xff
Probing for ALi Super I/O at 0x370...
  Failed. Returned data: id=0xffff, rev=0xff
Probing for Fintek Super I/O at 0x2e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for Fintek Super I/O at 0x4e...
  Failed. Returned data: vid=0xc4f8, id=0xa170
Probing for Fintek Super I/O at 0x2e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for Fintek Super I/O at 0x4e...
  Failed. Returned data: vid=0xffff, id=0xffff
Probing for ITE Super I/O (init=standard) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8502e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8761e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8228e) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=0x87,0x87) at 0x25e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=standard) at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8502e) at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8761e) at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8228e) at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=0x87,0x87) at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=standard) at 0x4e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8502e) at 0x4e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8761e) at 0x4e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=it8228e) at 0x4e...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=0x87,0x87) at 0x4e...
  Failed. Returned data: id=0x70a1, rev=0xf
Probing for ITE Super I/O (init=legacy/it8661f) at 0x370...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for ITE Super I/O (init=legacy/it8671f) at 0x370...
  Failed. Returned data: id=0xffff, rev=0xf
Probing for NSC Super I/O at 0x2e...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for NSC Super I/O at 0x4e...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for NSC Super I/O at 0x15c...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for NSC Super I/O at 0x164e...
  Failed. Returned data: port=0xff, port+1=0xff
Probing for Nuvoton Super I/O at 0x164e...
  Failed. Returned data: chip_id=0xffff
Probing for Nuvoton Super I/O (sid=0xfc) at 0x164e...
  Failed. Returned data: sid=0xff, id=0xffff, rev=0x00
Probing for Nuvoton Super I/O at 0x2e...
  Failed. Returned data: chip_id=0xffff
Probing for Nuvoton Super I/O (sid=0xfc) at 0x2e...
  Failed. Returned data: sid=0xff, id=0xffff, rev=0x00
Probing for Nuvoton Super I/O at 0x4e...
  Failed. Returned data: chip_id=0x70a1
Probing for Nuvoton Super I/O (sid=0xfc) at 0x4e...
  Failed. Returned data: sid=0xff, id=0x70a1, rev=0x00
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x2e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x2e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x4e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x4e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x162e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x162e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x164e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x164e...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x3f0...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x3f0...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x20/0x21) at 0x370...
  Failed. Returned data: id=0xff, rev=0xff
Probing for SMSC Super I/O (idregs=0x0d/0x0e) at 0x370...
  Failed. Returned data: id=0xff, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x2e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x89) at 0x2e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x86,0x86) at 0x2e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x87,0x87) at 0x2e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x4e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x89) at 0x4e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x86,0x86) at 0x4e...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x87,0x87) at 0x4e...
  Failed. Returned data: id/oldid=0x70/0x0f, rev=0xa1
Probing for Winbond Super I/O (init=0x88) at 0x3f0...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x89) at 0x3f0...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x86,0x86) at 0x3f0...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x87,0x87) at 0x3f0...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x370...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x89) at 0x370...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x86,0x86) at 0x370...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x87,0x87) at 0x370...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x88) at 0x250...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x89) at 0x250...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x86,0x86) at 0x250...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Winbond Super I/O (init=0x87,0x87) at 0x250...
  Failed. Returned data: id/oldid=0xff/0x0f, rev=0xff
Probing for Server Engines Super I/O at 0x2e...
  Failed. Returned data: id=0xffff, rev=0xff
No Super I/O found

Step 4 :
flashrom v0.9.5.2-r1515 on Linux 3.2.1-gentoo-r2 (x86_64), built with libpci 3.1.9, GCC 4.5.3, little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 1 usecs, 2019M loops per second, 10 myus = 10 us, 100 myus = 126 us, 1000 myus = 1021 us, 10000 myus = 10571 us, 4 myus = 7 us, OK.
Initializing internal programmer
No coreboot table found.
DMI string system-manufacturer: "MEDIONPC"
DMI string system-product-name: "MS-7091"
DMI string system-version: " "
DMI string baseboard-manufacturer: "MICRO-STAR INTERNATIONAL CO., LTD"
DMI string baseboard-product-name: "MS-7091"
DMI string baseboard-version: " "
DMI string chassis-type: "Desktop"
Found chipset "Intel ICH6/ICH6R" with PCI ID 8086:2640. Enabling flash write... 
0xfff80000/0xffb80000 FWH IDSEL: 0x0
0xfff00000/0xffb00000 FWH IDSEL: 0x0
0xffe80000/0xffa80000 FWH IDSEL: 0x1
0xffe00000/0xffa00000 FWH IDSEL: 0x1
0xffd80000/0xff980000 FWH IDSEL: 0x2
0xffd00000/0xff900000 FWH IDSEL: 0x2
0xffc80000/0xff880000 FWH IDSEL: 0x3
0xffc00000/0xff800000 FWH IDSEL: 0x3
0xff700000/0xff300000 FWH IDSEL: 0x4
0xff600000/0xff200000 FWH IDSEL: 0x5
0xff500000/0xff100000 FWH IDSEL: 0x6
0xff400000/0xff000000 FWH IDSEL: 0x7
0xfff80000/0xffb80000 FWH decode enabled
0xfff00000/0xffb00000 FWH decode enabled
0xffe80000/0xffa80000 FWH decode disabled
0xffe00000/0xffa00000 FWH decode disabled
0xffd80000/0xff980000 FWH decode disabled
0xffd00000/0xff900000 FWH decode disabled
0xffc80000/0xff880000 FWH decode disabled
0xffc00000/0xff800000 FWH decode disabled
0xff700000/0xff300000 FWH decode disabled
0xff600000/0xff200000 FWH decode disabled
0xff500000/0xff100000 FWH decode disabled
0xff400000/0xff000000 FWH decode disabled
Maximum FWH chip size: 0x100000 bytes
BIOS Lock Enable: disabled, BIOS Write Enable: disabled, BIOS_CNTL is 0x0
OK.
The following protocols are supported: FWH.
Probing for Atmel AT49LH002, 256 kB: probe_82802ab: id1 0x5f, id2 0x8b, id1 parity violation, id1 is normal flash content, id2 is normal flash content
Probing for Intel 82802AB, 512 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for Intel 82802AC, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for PMC Pm49FL002, 256 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for PMC Pm49FL004, 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for Sharp LHF00L04, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for SST SST49LF002A/B, 256 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for SST SST49LF003A/B, 384 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for SST SST49LF004A/B, 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for SST SST49LF004C, 512 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for SST SST49LF008A, 1024 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for SST SST49LF008C, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for SST SST49LF016C, 2048 kB: Chip size 2048 kB is bigger than supported size 1024 kB of chipset/board/programmer for FWH interface, probe/read/erase/write may fail. probe_82802ab: id1 0xff, id2 0xff, id1 parity violation, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FLW040A, 512 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FLW040B, 512 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FLW080A, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FLW080B, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FW002, 256 kB: probe_82802ab: id1 0x5f, id2 0x8b, id1 parity violation, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FW016, 2048 kB: Chip size 2048 kB is bigger than supported size 1024 kB of chipset/board/programmer for FWH interface, probe/read/erase/write may fail. probe_82802ab: id1 0xff, id2 0xff, id1 parity violation, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FW040, 512 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for ST M50FW080, 1024 kB: probe_82802ab: id1 0x49, id2 0x4d, id1 is normal flash content, id2 is normal flash content
Probing for Winbond W39V040FA, 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Found Winbond flash chip "W39V040FA" (512 kB, FWH) at physical address 0xfff80000.
Lockout bits:
Hardware bootblock locking (#TBL) is active.
Hardware remaining chip locking (#WP) is active..
Software 64 kB bootblock locking is not active.
Software 16 kB bootblock locking is not active.
Lock status of block at 0x00000000 is Write Lock (Default State).
Lock status of block at 0x00010000 is Write Lock (Default State).
Lock status of block at 0x00020000 is Write Lock (Default State).
Lock status of block at 0x00030000 is Write Lock (Default State).
Lock status of block at 0x00040000 is Write Lock (Default State).
Lock status of block at 0x00050000 is Write Lock (Default State).
Lock status of block at 0x00060000 is Write Lock (Default State).
Lock status of block at 0x00070000 is Write Lock (Default State).
Probing for Winbond W39V040FB, 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for Winbond W39V040FC, 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for Winbond W49V002FA, 256 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for Winbond W39V080FA, 1024 kB: probe_jedec_common: id1 0xda, id2 0x34
Probing for Winbond W39V080FA (dual mode), 512 kB: probe_jedec_common: id1 0xda, id2 0x34
Found Winbond flash chip "W39V040FA" (512 kB, FWH).
No operations were specified.
Restoring PCI config space for 00:1f:0 reg 0xdc

Step 5:
I didn't find the URL to the mainboard specifications page. :-(

Thank you for reading my mail :)