Issue #386 has been updated by Kyösti Mälkki.


File coreboot_logfile_cleaned.txt added



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Bug #386: ASUS P8Z77-V LX2 - Raminit issue at second boot with two 8GiB DIMMs - 
bootloop

https://ticket.coreboot.org/issues/386#change-946



* Author: gzz5f gzz5f

* Status: New

* Priority: High

* Category: board support

* Target version: master

* Start date: 2022-06-05

* Affected versions: master

* Needs backport to: none

* Affected hardware: ASUS P8Z77-V LX2

* Affected OS: all

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I build coreboot today for the ASUS P8Z77-V LX2 and used the latest coreboot 
master code.



The 2 8GiB DIMMs are working fine at first boot. You can start computer, 
install from a live media the OS and so on. But at the second boot it failes 
boot forever and its bootooping. It does not make a change if i boot for a 
second until SeaBIOS output and then turn off the computer or use the computer 
for longer time. The second boot is always broken.

Workaround 1: Remove one of the two 8GiB DIMMs. Then the computer also starts 
fine after a reboot.

Workaround 2: Install two 4GiB DIMMs instead of two 8GiB DIMMs. Then the 
computer also starts fine after reboot.

Workaround 3: At every boot boot for a second with one DIMM. Turn off the 
computer, insert the second DIMM and start it again.



kmalkki told me to rebuid the image with DEBUG_RAM_SETUP=y



I then build a second image, with DEBUG_RAM_SETUP=y.

The logfile contains the first successfull boot (created with Workaround 3), 
the poweroff and the poweron with the bootloop. I have let it bootloop few 
times before turned off the PSU.





---Files--------------------------------

coreboot_logfie.txt (197 KB)

coreboot_logfile_cleaned.txt (160 KB)





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