[THIN] Re: HP G4 Servers

Don't feel bad, the IBM Blade Center only showed 2GB for 4GB until recently!

There is usually some shortfall, but is normally only a couple of hundred
meg.... this is something HP should fix!

Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd D8453
Scottsdale, AZ 85262
(602) 432-8649
www.thinclient.net
steveg@xxxxxxxxxxxxxx
 

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Adam.Baum@xxxxxxxxxxxxxx
Sent: Tuesday, July 05, 2005 9:18 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: HP G4 Servers

Just an update on this....I have some G4 units with the latest BIOS and
they still only show 3.5GB.  Only way to get the full 4GB is to add the PAE
switch.  Haven't called HP yet, nor will I, since I am going up to 12GB on
these machines.  Got to do the PAE anyway.

adam




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|         |           Euan Cooper      |
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|         |           .govt.nz>        |
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|         |           ists.org         |
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|         |           05/22/2005 03:43 |
|         |           PM               |
|         |           Please respond to|
|         |           thin             |
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I think you need to re-read the url Malcolm provided ....

"To utilize the System memory that is normally reserved for the Intel
chipset and other PCI devices accessible to the operating system when
exactly 4 GB of memory is installed, updated System ROMs have been released
that will remap the 512 MB lost to PCI memory above 4 GB. Upgrade the
System ROM in the ProLiant DL360 G4, ProLiant DL380 G4, ProLiant ML350 G4
or ProLiant ML370 G4 server to a version dated later than 8/26/2004, or the
ProLiant BL20p G3 server to a version dated later than 11/11/04.


32-bit versions of the Microsoft Windows operating systems require enabling
PAE to access memory above 4 GB. Enabling PAE mode results in a very slight
performance penalty. This potential performance penalty is normal behavior
for 32-bit operating systems that support the PAE 36-bit physical
addressing mode to access memory above 4 GB because processes running in
these environments have 32-bit pointers and the operating system must
manage and translate physical memory addresses above 4 GB so that the
applications can use it. The application support model being used in these
operating system environments determine whether enabling PAE mode to gain
access to the 512 MB memory that is lost wil provide a performance
benefit."


      -----Original Message-----
      From: Foote, Eric [mailto:EFoote@xxxxxxx]
      Sent: Saturday, 21 May 2005 6:54 a.m.
      To: thin@xxxxxxxxxxxxx
      Subject: [THIN] Re: HP G4 Servers

      Or just update your ROM code and you will be all set
            -----Original Message-----
            From: thin-bounce@xxxxxxxxxxxxx
            [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Joe Shonk
            Sent: Friday, May 20, 2005 11:52 AM
            To: thin@xxxxxxxxxxxxx
            Subject: [THIN] Re: HP G4 Servers

            At this point, it's almost better to let the memory loss
            slide... I think you'll do more damage using the /PAE and the
            only thing you'll get in return is the system showing that you
            have more memory.  Unless you applications have been written to
            support AWE32 extension then the only thing that Windows can
            use that memory for is for cache.  Take that in consideration
            that the /PAE comes with a performance penalty and it require
            some kernel mode memory for the memory map.

            Joe




            From: thin-bounce@xxxxxxxxxxxxx
            [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of BRUTON,
            Malcolm, FM
            Sent: Friday, May 20, 2005 8:06 AM
            To: 'thin@xxxxxxxxxxxxx'
            Subject: [THIN] Re: HP G4 Servers

            I've found out that if you have advanced server which is what
            we use anyway you can use the /PAE switch and bingo all your
            memory magically reappears.  I agree, it does seem like a bad
            design or more explicitly a bad Intel chipset.  The G3's didn't
            suffer from this.  Thinks I will be using the /PAE for new
            G4's.

            Malcolm


            From: thin-bounce@xxxxxxxxxxxxx
            [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Joe Shonk
            Sent: 20 May 2005 14:57
            To: thin@xxxxxxxxxxxxx
            Subject: [THIN] Re: HP G4 Servers

            Hello,

            It's called bad design...  So HP only loses ½ gig?  With the
            IBM HS20 blades, you only get 3.1 gigs out of the 4 installed.

            Joe


            From: thin-bounce@xxxxxxxxxxxxx
            [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of BRUTON,
            Malcolm, FM
            Sent: Friday, May 20, 2005 4:39 AM
            To: 'thin@xxxxxxxxxxxxx'
            Subject: [THIN] HP G4 Servers

            All

            Came across a strange thing with some new HP G4 Servers

            Basically you stick 4gig of memory in them and after you
            install an OS you can only see 3.5GB of memory

            A hardware report shows that 4 gig is installed and you see it
            count to 4 gig when it boots

            Turns out that to get your full amount of memory you need to
            have the /PAE switch set in your boot.ini to see all 4 GB form
            within the OS. (which of course means you need windows 2000
            advanced or higher to work !!!)

            Given the discussions regarding the /PAE switch in this forum
            what do people think?.  Ignore that fact that you have lost ½
            gig of memory or use the /PAE switch.  Feeling a bit ripped as
            this did not happen with the G3's

            The HP explanation is here....

 
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=PSD_E
L041214_CW01

            Malcolm





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