Bug 151031

Summary: Not all RAM is found on GA-E7AUM-DS2H motherboard
Product: Base System Reporter: Thor Frølich <thor>
Component: amd64Assignee: freebsd-amd64 (Nobody) <amd64>
Status: Closed FIXED    
Severity: Affects Only Me    
Priority: Normal    
Version: 8.1-RELEASE   
Hardware: Any   
OS: Any   

Description Thor Frølich 2010-09-28 14:40:02 UTC 
Only 1GB RAM found (according to "dmesg | grep memory") in a 2GB system with motherboard of make and type: Gigabyte GA-E7AUM-DSH2.

Fix: 

According to this webpage it's a problem with SMAP:

http://miko.org/~tatyana/tech/FreeBSD/FreeBSD_on_GA-E7AUM-DS2H_with_Over_2GB_of_RAM.html

A patch for biossmap.c is given on said website, but I've no idea if it works or is sane:

http://miko.org/~tatyana/tech/FreeBSD/FreeBSD_8.0_GA-E7AUM-DS2H_Over2GB.diff
How-To-Repeat: 1. Install FreeBSD 8.1-RELEASE amd64 on machine with more than 1GB RAM and a Gigabyte GA-E7AUM-DS2H motherboard.
2. Run "dmesg | grep memory"
3. Observe output: "real memory  = 1073741824 (1024 MB)"
Comment 1 Andriy Gapon 2010-09-28 17:37:22 UTC 
Is there an English version of the quoted page?
http://miko.org/~tatyana/tech/FreeBSD/FreeBSD_on_GA-E7AUM-DS2H_with_Over_2GB_of_RAM.html
If not, can you translate it?

This seems like a problem with BIOS memory reporting.
Have you tried to update BIOS?
Have you reported the issue to a vendor your system/BIOS?

BTW, have you tried other modern operating systems on this hardware?

-- 
Andriy Gapon
Comment 2 Andriy Gapon freebsd_committer freebsd_triage 2010-10-08 10:14:47 UTC 
State Changed
From-To: open->closed

Reporter says that it is not a FreeBSD problem and possibly a HW issue. 
Message ID of the followup from the reporter is 
<AANLkTimpynGL8KtF_OXdFKPYQAQ9uFGKxUtBmXDdeXm+@mail.gmail.com>