ASUS KFSN4-DRE server/workstation board {#pagetop} ======================================= This is a server board using AMD hardware (Fam10h). It can also be used for building a high-powered workstation. Powered by libreboot. Flashing instructions can be found at [../install/\#flashrom](../install/#flashrom) [Back to previous index](./). Form factor {#formfactor} =========== These boards use the SSI EEB 3.61 form factor; make sure that your case supports this. This form factor is similar to E-ATX in that the size is identical, but the position of the screws are different. Flash chips {#flashchips} =========== These boards use LPC flash (not SPI), in a PLCC socket. The default flash size 1MiB (8Mbits), and can be upgraded to 2MiB (16Mbits). SST49LF080A is the default that the board uses. SST49LF016C is an example of a 2MiB (16Mbits) chip, which might work. It is believed that 2MiB (16Mbits) is the maximum size available for the flash chip. **DO NOT hot-swap the chip with your bare hands. Use a PLCC chip extractor. These can be found online. See ** Native graphics initialization {#graphics} ============================== Native graphics initialization exists (XGI Z9s) for this board. Framebuffer- and text-mode both work. A serial port is also available. Memory ====== DDR2 533/667 Registered ECC. 16 slots. Total capacity up to 64GiB. Hex-core CPUs {#hexcore} ============= PCB revision 1.05G is the best version of this board (the revision number will be printed on the board), because it can use dual hex-core CPUs (Opteron 2400/8400 series). Other revisions are believed to only support dual quad-core CPUs. Current issues {#issues} ============== - There seems to be a 30 second bootblock delay (observed by tpearson); the system otherwise boots and works as expected. See [text/kfsn4-dre/bootlog.txt](text/kfsn4-dre/bootlog.txt) - this uses the \'simple\' bootblock, while tpearson uses the \'normal\' bootblock, which tpearson suspects may be a possible cause. This person says that they will look into it. [This config](http://review.coreboot.org/gitweb?p=board-status.git;a=blob;f=asus/kfsn4-dre/4.0-10101-g039edeb/2015-06-27T03:59:16Z/config.txt;h=4742905c185a93fbda8eb14322dd82c70641aef0;hb=055f5df4e000a97453dfad6c91c2d06ea22b8545) doesn\'t have the issue. - Text-mode is a bit jittery (but still usable). (the jitter disappears if using KMS, once the kernel starts. The jitter will remain, if booting the kernel in text-mode). Other information ================= [specifications](ftp://ftp.sgi.com/public/Technical%20Support/Pdf%20files/Asus/kfsn4-dre.pdf) Copyright © 2015 Leah Rowe <info@minifree.org>\ Permission is granted to copy, distribute and/or modify this document under the terms of the Creative Commons Attribution-ShareAlike 4.0 International license or any later version published by Creative Commons; A copy of the license can be found at [../cc-by-sa-4.0.txt](../cc-by-sa-4.0.txt) Updated versions of the license (when available) can be found at UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR IN PART, THIS LIMITATION MAY NOT APPLY TO YOU. The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.