On 01/12/2019 03:48 AM, [email protected] wrote: Welcome to coreboot fine sir :D
> I have a KCMA-D8 motherboard with two Opteron 4226s, (I assume you want to play games as you have a RX580) You probably won't get decent gaming performance with these I would swap them out for 4284's or 4240s I assume you want bulldozer cpus so you can use libreboot ie: not needing microcode updates although I advise them for spectre. With 4284 (or the slightly faster but microcode updates mandatory 4386) or what not and a RX580 8GB you should be able to max out new games while gaming in a VM - let me know if you need help with that. There are only a few games that are capable of using more than 8 cores but the advantage of a second CPU is that you can do other stuff at the same time without noticing as long as you use cpu pinning/isolcpus for your vm gaming. Another performance tweak is to combine half the modules of two CPU's to obtain Turbo 2 performance on your gaming VM so with dual 4284's for example you would get 3.7ghz rather than 3.3ghz or 3.7ghz on the first 4 cores and 3.3ghz on the last 4 cores in case you wish to do something else on the second CPU while you are gaming. For power consumption you should have nohz=on setting on your kernel command line otherwise the modules will never enter CC6, pcie_aspm=force is also another good one to have so is tweaking your CMOS settings for power saving like enabling sata alpm and disabling 1394. I also suggest obtaining: FLR supporting SAS card as they are quite cheap right now on fleabay either a $30 PIKE2008 to fit in the weird slot on the bottom or a $20 LSI SAS 9285 for the third PCI-e slot (On the D8 you can use the PIKE slot or the third PCI-e slot but not both) ASMB4 or ASMB5 module as they are hard to find, there is some on fleabay for around $30 atm. Btw have you heard of OpenPOWER? The raptor blackbird/talos 2? It is the future of freedom computing now that new x86 is no longer free...gaming is the the only reason to get a D8/D16 now that the blackbird is price equivilant with much better performance. >and 6x4GB (24GB) Hynix HMT151R7BFR4C-H9 RAM sticks. Maybe try cleaning the contacts if they look dirty? I had a ram training issue due to dirty RAM contacts that didn't appear all the time and only on coreboot not the propriatary bios for some reason but after cleaning is ok. > All my attempts of getting Coreboot to POST with this board so far haven't > worked. I'm compiling Coreboot from Git >(master branch), and can build it > without issue. > A pre-built Libreboot ROM (20160907) POSTs and boots fine. > > For Coreboot's config, I've tried including/excluding CPU microcode updates, > along with some less important-sounding options. For hardware, I've tried > unplugging > >everything external (KB/mouse), my GPU (RX 580), and only had a > single RAM stick in (slot A1). I've also tried a single CPU being powered > (kept the 2nd CPU in but >only had a single 4-pin CPU going to the 1st CPU). There is your issue or at least one of them - you need dual 8pin EPS cables - one per CPU - like I said in the wiki not 4pin cables and not adapters. Anyway what does the console logs say? If you don't have one get a null modem serial cable and hook it up to another PC to find out. > > Can anyone else confirm Git builds of Coreboot booting on this board, or > provide any tips as to anything I could be missing? It should I tested it a few months back although I use v4.6 on mine due to some power consumption regressions in master. _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
