2.7 amd64 Desktop issues ( mouse, RAM, perfomance etc. )

Siju George sgeorge.ml at gmail.com
Sun May 16 23:44:04 PDT 2010


On Fri, May 14, 2010 at 4:07 PM, YONETANI Tomokazu <qhwt+dfly at les.ath.cx> wrote:
> On Fri, May 14, 2010 at 03:13:17PM +0530, Siju George wrote:
>> 2) Only 3GB of 4GB RAM is detected. Is there a limit?
>
> You may have to change the BIOS setting.
>

BIOS Setting s show

Total Memory     : 4096 MB with 8 MB Shared Memory
                           : Dual - Channel Memory Mode

DDRII1                 : 2048 MB/266 MHz (DDRII533)
DDRII2                 : 2048 MB/266 MHz (DDRII533)

There are no setting to limit RAM in BIOS :-(

>Try booting other 64bit-OSes
>

ArchLinux 64 bit shows only 3 GB :-(

> to see if they do it better.  At least 4G is recognized on my D510MO box
>
> $ sysctl hw.physmem hw.usermem
> hw.physmem: 4262477824
> hw.usermem: 3002294272
>

$ sysctl hw.physmem hw.usermem
hw.physmem: 3061977088
hw.usermem: 2638372864



> Try capturing dmesg message with boot -v; choose 4-th or so item which reads
>  Boot DragonFly with verbose logging
>

real memory  = 3078291456 (2935 MB)
Physical memory chunk(s):
0x00001000 - 0x0009efff, 647168 bytes (158 pages)
0x0102d000 - 0xb779ffff, 3061264384 bytes (747379 pages)
avail memory = 2884808704 (2751 MB)

any idea what could be the trouble?

I was testing the amd64 port for a new backup server.
I guess i will go back to the x86 port since more than 3 GB RAm is not
recognized any how  :-(

thanks

--Siju






More information about the Users mailing list