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This page describes how to use coreboot on the Supermicro H8SCM mainboard.


Device/functionality Status Comments
CPU works OK
L1 cache enabled OK
L2 cache enabled OK
L3 cache enabled OK
Multiple CPU support N/A
Multi-core support OK
Hardware virtualization OK
DDR3 OK Unbuffered, Registered ECC/non-ECC
Dual channel support OK
ECC support OK
On-board Hardware
On-board IDE 3.5" N/A
On-board IDE 2.5" Unknown
On-board SATA OK
On-board SCSI N/A
On-board USB OK
On-board VGA OK must add VBIOS
On-board Ethernet OK
On-board Audio N/A
On-board Modem N/A
On-board FireWire N/A
On-board Smartcard reader N/A
On-board CompactFlash N/A
On-board PCMCIA N/A
On-board Wifi N/A
On-board Bluetooth N/A
On-board SD card reader N/A
Add-on slots/cards
ISA add-on cards N/A
Audio/Modem-Riser (AMR/CNR) cards N/A
PCI add-on cards N/A
Mini-PCI add-on cards N/A
Mini-PCI-Express add-on cards Unknown
PCI-X add-on cards N/A
AGP graphics cards N/A
PCI Express x1 add-on cards N/A
PCI Express x2 add-on cards N/A
PCI Express x4 add-on cards N/A
PCI Express x8 add-on cards N/A
PCI Express x16 add-on cards OK
PCI Express x32 add-on cards N/A
HTX add-on cards N/A
Legacy / Super I/O
Floppy N/A
Serial port 1 (COM1) OK
Serial port 2 (COM2) Untested
Parallel port N/A
PS/2 keyboard OK
PS/2 mouse OK
Game port N/A
Infrared N/A
PC speaker Untested
DiskOnChip N/A
Trackpoint N/A
Touchpad N/A
Fn Hotkeys N/A
Fingerprint Reader N/A
Docking VGA N/A
Docking LAN N/A
Docking USB N/A
Docking Audio N/A
Docking Displayport N/A
Thinklight N/A
Webcam N/A
Sensors / fan control OK
Hardware watchdog WIP
CAN bus N/A
CPU frequency scaling OK
Other powersaving features N/A
Reboot OK
Poweroff OK
Suspend Unknown
Nonstandard LEDs OK
High precision event timers (HPET) Untested
Random number generator (RNG) N/A
Wake on modem ring N/A
Wake on LAN Untested
Wake on keyboard Untested
Wake on mouse Untested
TPM Unknown
Flashrom Untested

Supported CPUs

4000 Series processor (C32)

Extract VGA BIOS

Booting Linux OS via the Proprietary BIOS, and login as the privilege user.

Select the VGA device we want to dump rom from

~# lspci | grep VGA
03:04.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200eW WPCM450 [Hermon] - Winbond/Nuvoton (rev 0a)

Enable the expansion ROM for the Device

~# cd /sys/bus/pci/devices/0000\:03\:04.0
~# echo 1 > rom

Dump the vga bios

~# dd if=rom of=/tmp/vgabios.bin
64+0 records in
64+0 records out
32768 bytes (33 kB) copied, 0.000212197 s, 154 MB/s

Disable the expansion ROM for the Device

~# echo 0 > rom
~#file /tmp/vgabios.bin
/tmp/vgabios.bin: BIOS (ia32) ROM Ext. IBM comp. Video (64*512)

OS Booting

Proprietary BIOS

Other issues