Max RAM Issue..

[mozart]

Hi Guys..

it's me again.. still working out my Display problem, im using Acer 4738 (Intel GMA 4500) im still trying to work this out.

There's something caught my eyes during the BSD boot sequence..

PC-BSD 9.0 Diagnostic Sheet
Generated: Wed Apr 11 10:12:16 WIT 2012

-----------------Dmesg Output-------------------------

Copyright (c) 1992-2011 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-RELEASE #3: Tue Dec 27 21:59:00 UTC 2011
root@build9x64.pcbsd.org:/usr/obj/builds/i386/pcbsd-build90/fbsd-source
.......
......
real memory = 8589934592 (8192 MB) <<<<<<--------
avail memory = 2929790976 (2794 MB) <<<<<--------

Event timer "LAPIC" quality 600
ACPI APIC Table: <ACRSYS ACRPRDCT>
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
FreeBSD/SMP: 1 package(s) x 2 core(s) x 2 SMT threads
.......
...

as you can see, the system tells me that i GOT 8 GB of RAM, but it can only use around 2,7 Gigs..
can somebody explain this to me? and can i harness the full power of my RAM..??

thank you


-Mozart Malik-

[Tigersharke]

Hello..

The trouble is that 32bit BSD cannot take full advantage of more than 4Gb, though as LooX mentioned on #pcbsd, 2.7 seems a little low.

If you would like to use better potential of your 8Gb, you would need to use the 64bit version of PC-BSD (or FreeBSD). Be sure to keep in mind any of the things you have already accomplished to get your system running thus far.

[Ole Juul]

Unless PAE is turned off in PC-BSD then a 32 bit processor should support more than the default 4GB. This started with the second generation pentium (P-pro, P-II, etc). The way I read it, PAE allows 52-bit physical addresses on 32 bit processors which makes for a 64GB limit. However, I don't have any practical experience with this and can only support that claim with documentation. Linux supports PAE in the kernel, and supposedly FreeBSD does as well.

[fluca1978]

It seems that the version you are running is for 64 bit, since it has been built as 9x64. If this is the case, then a buggy firmware on the laptop could be the cause of the not working memory (this of course does not depend from the operating system). If not, please double check you are running 64 bit PCBSD.

By the way, as far as I remember, PAE allows for 36 bit addresses and a 64 GB limit.

[Ole Juul]

By the way, as far as I remember, PAE allows for 36 bit addresses and a 64 GB limit.

You're probably right. I just read that in the Wikipedia article which says "up to 52-bit physical addresses". I'm probably not understanding something.

[bebuxe]

lol, his processor works fine in 64bit, I burst out in laughter when I read "-32bit on Acer 4738 (corei3)" at work.

My coworker, looked at me like, What's wrong?

I told him:
a guy is using 32bit on a machine that can do 64bit just fine. He does not know how to use his resources.


Don't worry mozart, I know you are semi new. And I do not mean derogatory harm to your lack of knowledge. But it is what happened. Protip: learn your machine:
http://ark.intel.com/products/49020/...he-2_40-GHz%29

My signature my teach you why I behave this way. But I am very kind. Please do not take it bad.

[fluca1978]

While it seems pretty obvious that the system is running as 32 bit, the dmesg states about a x64 system. I guess the output of

uname -a

could help understanding what the problem is.

[mozart]

Okay guys..

thank you so much for the swift response
im going to install the 64-bit now.
i promise ill post the update as soon i can.

cheers

-mozart-

[mozart]

Hi Guys..

Great News..!!!

Hooraayy i Solved it..!!

I just Install the 64-bit, and voila!!

-----------------Dmesg Output-------------------------

Copyright (c) 1992-2011 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 9.0-RELEASE #3: Tue Dec 27 14:14:29 PST 2011
.....
....
..
real memory = 8589934592 (8192 MB) <<<<----
avail memory = 7858642944 (7494 MB) <<<<---
...
..

i am using almost all of my RAM capacity..!!

thanks for the attention and the advices guys..
please dont get bored at me, coz i got a new problem again.
its about auto-mount, and im gonna post a new thread about it..

cheerss..

-mozart-