Re: 4GBs of RAM Miscount

Intel® Desktop Board D915GUX

onboard video and yet it sounds like you have a better card plugged in,
explains a bit more loss but we're still falling short a bit. Fancy sound.
Probably make a nice game box.

"Daniel Jewel" <cyberdudeiq@xxxxxxxxxxxx> wrote in message
news:ejTlQRMdHHA.284@xxxxxxxxxxxxxxxxxxxxxxx
Intel mobo D915GUX, nvidia 128 pci-express video, sbs2003r2 premium, with
sp2 , isa installed, running sbe crm, two nics, 4 modules of 1gb corsair
ddr2 533.

Dan
P.S. will remove the /3GB switch

"SuperGumby [SBS MVP]" <not@xxxxxxxxxxx> wrote in message
news:OsuYJKMdHHA.1508@xxxxxxxxxxxxxxxxxxxxxxx
hey, by the by

wanna tell us a little more about the system (mobo, brand, video card,
etc...)? I just realised you're not missing a few hundred MB, you're
missing 1.1GB+, that's a lot to sacrifice to devices.

"SuperGumby [SBS MVP]" <not@xxxxxxxxxxx> wrote in message
news:OAnJYCMdHHA.4172@xxxxxxxxxxxxxxxxxxxxxxx
the /3gb switch should not be used on SBS. Basically, the number of
kernel mode services normally crowds the room, reducing this to give
additional resources to user mode 'starves' the system.

However, if it's still showing 2.87 I'd go looking elsewhere.

"Daniel Jewel" <cyberdudeiq@xxxxxxxxxxxx> wrote in message
news:e1gV$2LdHHA.420@xxxxxxxxxxxxxxxxxxxxxxx
SuperG,
no luck yet...I added a seconf line (as a caution) and added the
following switches /PAE /3GB
OS still shows RAM to 2.87 GB
Could it be the order of the switches ?

Dan

"SuperGumby [SBS MVP]" <not@xxxxxxxxxxx> wrote in message
news:ODsK1VLdHHA.4516@xxxxxxxxxxxxxxxxxxxxxxx
I know of no adverse affects beyond discussions easily found at
support.ms but those discussions are generally dealt with by current SP
levels or deal with particular behaviours/circumstances.

Most of my sites are <20 users and the only heavy SQL site is still on
SBS 2000, I haven't found it necessary to run 4GB. My _personal
opinion_ is that 2GB is a 'sweet spot' for SBS, covering a wide range
of use. I would recommend more today but most of my client's systems
have been in operation for some time. Long winded way of saying 'no',
right?-)

I suppose a cautious person would create a second boot.ini line,
allowing the system to be started with/out PAE. Not sure, but I think
'safe mode' would be possible anyway.

"Daniel Jewel" <cyberdudeiq@xxxxxxxxxxxx> wrote in message
news:OG9YRKLdHHA.420@xxxxxxxxxxxxxxxxxxxxxxx
Many thanks SuperG !

have you ever applied the switch to a SBS 2003 box? The Server is
beginning to work reasonably well now...and I just don't wanto to
screw things up...to the best of your knowledge, do you think the
switch will not screw things up?
tks,
Dan

"SuperGumby [SBS MVP]" <not@xxxxxxxxxxx> wrote in message
news:u7NyM2KdHHA.4344@xxxxxxxxxxxxxxxxxxxxxxx
Daniel, please add the /PAE switch to your boot.ini line but also be
aware of http://support.microsoft.com/kb/834628/en-us (and other
articles viewable by plugging '2003 PAE' into the search box at
http://support.microsoft.com) and let us know how much memory SBS
reports.

This does not necessarily 'cure' your problem, TTBOMK it requires
certain criteria to be satisfied which may include CPU, motherboard,
and device capabilities.

The idea is that /PAE allows the system to move the reserved space
for the devices out of the base 4GB, making the 4GB (or most of it)
available to the OS. It does however have an impact on performance,
it increases the 'pointers' for memory handling to allow 32b systems
to access outside the 4GB flat memory model. Do you get better
performance from the increased memory or by running without PAE and
living with the reduced amount? If it works with your system we'll
see :-)

http://blogs.msdn.com/oldnewthing/archive/2004/08/18/216492.aspx
Myth: PAE increases the virtual address space beyond 4GB

and I'm sure there's a discussion of this on one of the SBS blogs
but I've checked Susan, Sean, SBSdocs, and the 'Official' without
luck

"Daniel Jewel" <cyberdudeiq@xxxxxxxxxxxx> wrote in message
news:%23u9A$MKdHHA.4172@xxxxxxxxxxxxxxxxxxxxxxx
Many thanks Charlie,

had I only purchased 3 GBs of RAM would have the same impact on the
overall performance?
If yes, that means I threw 1 GB of RAM out the window...?

Dan,

"Charlie Russel - MVP" <charlie@xxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:AAAC4A14-5AF9-4C56-977F-7F85E7C686E0@xxxxxxxxxxxxxxxx
This is a direct byproduct of the limited flat memory space
available to 32-bit Windows. The BIOS reserves space for PCI card
BIOS and memory mapping below 4GB. Because of this, access to RAM
in that memory space is blocked. With a 64-bit OS this can be
remapped above 4GB, eliminating the problem. And many BIOS have
the ability to reduce this hit with one of several configuration
changes.

--
Charlie.
http://msmvps.com/xperts64


"Daniel Jewel" <cyberdudeiq@xxxxxxxxxxxx> wrote in message
news:OYg7W68cHHA.2088@xxxxxxxxxxxxxxxxxxxxxxx
hello all,

this is the first time I see this (usually don't go over 2 GBs)
that tere are 4GBs installed but the OS (SBS2003 R2 Premium SP2)
only shows 2.87GB...I have nothing sharing the main RAM...

Also, do I have to add some sort of switch in boot.ini or
someplace else?

Thanks,

Dan




















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Relevant Pages

  • Re: 4GBs of RAM Miscount
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