On Thu, Jul 7, 2011 at 4:02 PM, Tadas Slotkus devtadas@gmail.com wrote:
Hi,
thank you all for the quick reply.
If the DIMMs work with the production BIOS but not with your BIOS, it is possible that you are using low cost modules that do not have a valid SPD checksum. The coreboot project is configured to validate the SPD checksum, while the Asrock production BIOS is configured to ignore the SPD checksum. To test your coreboot using the DIMM SPD checksum ignore option, change BLDCFG_IGNORE_SPD_CHECKSUM in buildopts.c and try it that way.
I just tried that with fresh new tree, but the output remains the same. (except build timestamps...).
The RAM is one dimm: PATRIOT PSD32G13332H Desktop Memory Device Signature Line (DDR3 SDRAM,2GB,1333MHz(PC3-10600),CL9,256 x 64,DIMM 240-pin,Unbuffered)
Just to completely rule out the bad SPD idea, can you please dump the SPD content when you boot with the production BIOS? i2cdump output (ASCII) or raw output from sysfs would be great. Then we can plug it into bc and confirm that the checksum is correct. This would also be a good way to confirm that the SPD addresses are correct in Coreboot, and rule out the possibility that ASRock changed SPD addressing between board revisions...