There is a rather cheap mainboard ASUS K14PA-U12 for 9004 EPYCs [1]. Strange, but it is missing support for 9005 Turin. How can this be (except of 400W+ models)? What do you think, could there be some true hardware issue making it impossible to workaround it in BIOS and thus no chance for coreboot either?
One thing that’s interesting with servers built with these cpus is that any M.2 drives tend to use the PCIe Gen 3 lanes. If there are two drives, one is likely x4 with the other x2. If you want fast boot drives it is important to pay attention to this.
As the Gigabyte MZ33-AR1 porting effort progresses, coreboot has to add definitions for I/O bus initialization, such as SATA, USB, and PCI Express. If you are curious how it is done on an AMD Turin-based system or want to educate yourself about modern server SATA, USB, and PCIe buses, this blog post is for you.
There is a rather cheap mainboard ASUS K14PA-U12 for 9004 EPYCs [1]. Strange, but it is missing support for 9005 Turin. How can this be (except of 400W+ models)? What do you think, could there be some true hardware issue making it impossible to workaround it in BIOS and thus no chance for coreboot either?
[1] https://servers.asus.com/products/servers/server-motherboard...
One thing that’s interesting with servers built with these cpus is that any M.2 drives tend to use the PCIe Gen 3 lanes. If there are two drives, one is likely x4 with the other x2. If you want fast boot drives it is important to pay attention to this.
As the Gigabyte MZ33-AR1 porting effort progresses, coreboot has to add definitions for I/O bus initialization, such as SATA, USB, and PCI Express. If you are curious how it is done on an AMD Turin-based system or want to educate yourself about modern server SATA, USB, and PCIe buses, this blog post is for you.