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Bug #386

closed

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

Added by gzz5f gzz5f almost 2 years ago. Updated over 1 year ago.

Status:
Closed
Priority:
High
Assignee:
-
Category:
board support
Target version:
master
Start date:
06/05/2022
Due date:
% Done:

0%

Estimated time:
Affected versions:
master
Needs backport to:
none
Affected hardware:
ASUS P8Z77-V LX2
Affected OS:
all

Description

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

Download all files
coreboot_logfie.txt (197 KB) coreboot_logfie.txt gzz5f gzz5f, 06/05/2022 04:06 PM
coreboot_logfile_cleaned.txt (160 KB) coreboot_logfile_cleaned.txt stripped ANSI escapes Kyösti Mälkki, 06/05/2022 04:32 PM
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