This is a desktop board using AMD hardware (Fam10h and Fam15h CPUs available). It can also be used for building a high-powered workstation. Powered by libreboot. The coreboot port was done by Timothy Pearson of Raptor Engineering Inc. and, working with them, merged into libreboot.
Note that not all boards are compatible. See board status below to determine compatibility with your board.
Flashing instructions can be found at ../install/#flashrom - note that external flashing is required (e.g. BBB), if the proprietary (ASUS) firmware is currently installed. If you already have libreboot, by default it is possible to re-flash using software running in GNU+Linux on the kcma-d8, without using external hardware.
There are two ways to identify a supported KCMA-D8 board:
Supported boards begin with a serial number of B9S2xxxxxxxx or above where the first character refers to the year of manufacture (A = 2010, B = 2011, etc.) and the following character the month in hexadecimal (1…9, A, B, C). Thus, any board produced September 2011 or later are compatible with Libreboot. Boards originally shipped with BIOS version 2001 or higher are also compatible.
For help locating these identifying markers, see ASUS documentation for determining Opteron 4200 series compatibility
For more detailed information regarding the coreboot port, see https://raptorengineeringinc.com/coreboot/kcma-d8-status.php
This board is ATX form factor. While the ATX standard, version 2.2 specifies board dimensions 305mm x 244mm, this board measures 305mm x 253mm; ensure your case supports this extra ~cm in width.
Don’t use it. It uses proprietary firmware and adds a backdoor (remote out-of-band management chip, similar to the Intel Management Engine. Fortunately, the firmware is unsigned (possibly to replace) and physically separate from the mainboard since it’s on the add-on module, which you don’t have to install.
2MiB flash chips are included by default, on these boards. It’s on a P-DIP 8 slot (SPI chip). The flash chip can be upgraded to higher sizes: 4MiB, 8MiB or 16MiB. With at least 8MiB, you could feasibly fit a compressed linux+initramfs image (BusyBox+Linux system) into CBFS and boot that, loading it into memory.
Libreboot has configs for 2, 4, 8 and 16 MiB flash chip sizes (default flash chip is 2MiB).
DO NOT hot-swap the chip with your bare hands. Use a P-DIP 8 chip extractor. These can be found online. See http://www.coreboot.org/Developer_Manual/Tools#Chip_removal_tools
Only text-mode is known to work, but linux(kernel) can initialize the framebuffer display (if it has KMS - kernel mode setting).
Check the ASUS website.
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