Hello, Thomas > -----Original Message----- > From: Thomas Gstädtner [mailto:[email protected]] > Sent: Sunday, October 09, 2011 11:53 PM > To: She, Kerry > Cc: Marc Jones; coreboot > Subject: Re: [coreboot] Issues with Supermicro H8SCM > > On Sun, Oct 9, 2011 at 07:17, She, Kerry <[email protected]> wrote: > > Hello, Thomas > > > >> -----Original Message----- > >> From: [email protected] > >> [mailto:coreboot- > >> [email protected]] On Behalf Of Marc Jones > >> Sent: Saturday, October 08, 2011 3:45 AM > >> To: Thomas Gstädtner > >> Cc: coreboot > >> Subject: Re: [coreboot] Issues with Supermicro H8SCM > >> > >> On Fri, Oct 7, 2011 at 1:10 PM, Thomas Gstädtner > >> <[email protected]> > >> wrote: > >> > > >> > Thanks for the advice Marc, > >> > > >> > I already had the loglevel set to spew (8). I additionally tried > >> > the other "Verbose output" debugging options, unfortunately I don't > >> > get any output at all when they are built in. > >> > Also, while it is hard to find and AMD doesn't have any official > >> > document confirming this, according to some google hits the > >> > processor should be revision D1 not rev E (AMD model number: > OS4170OFU6DGOWOF ). > > > > I also found the latest code not boot on my H8SCM-F mainboard with Rev > D1 processor. > > So I have made some update to using the AGESA wrapper framework, the > > attachment is some of my update, with this series of patches applied, > > we can boot to Debian Linux Destop or Windows Server 2008 R2 standard > > edition. > > Thanks > > > > Hi Kerry, > > first of all: thanks for your effort! > While I had no success at first, I now can get to the boot prompt > (haven't tried any further yet). > > Anyway, I currently have 2 DIMMs, each 4 GiB. > A dual-channel configuration does not seem to work, the DIMMs are > detected, but coreboot throws an "ASSERTION FAILED" error (see attached > log cb_h8scm_01.log). > It seems to fail because it somehow seems to think no DIMM is found > (despite both DIMMs being detected). I tried disabling this check, but > this only leads to a reset. > The same problem exists with a single-DIMM configuration. > > However, when I switch to a dual-DIMM, single-channel config, it at first > does not start at all (i.e. no output on serial and no heartbeat from the > BMC) - but when I trigger a manual reset it immediately starts up (see > attached log cb_h8scm_dimma1a2_success.log). > > I'll report back when I find out more.
I have only test with 4 Registered ECC DIMMs, so I can confirm dual DIMMs in one channel should works, It seems that the DRAM training has some problem for single DIMM on one channel situation. Thanks Kerry -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
