Here is a more complete document from HP. http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00883105&dimid=1438676018&dicid=alr_mar07&jumpid=em_alerts/us/mar07/all/xbu/emailsubid/mrm/mcc/loc/rbu_category/alerts
Regards, Greg Ken Schaefer > The memory management whitepaper that I've posted explains all of this: > http://www.microsoft.com/whdc/driver/kernel/mem-mgmt.mspx > > Pages 9-12 will give you lots of information on physical addressing, bus > addressing, how devices can use addresses and so on. > > Cheers > Ken > > ________________________________ > From: Ziots, Edward [EMAIL PROTECTED] > Sent: Thursday, 10 January 2008 8:05 AM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > Mike, > > I am seeing what you are saying. > > BIOS in the server I am seeing 3.7GIG only has a NIC card in it, and Dual > P4 processors, a Smart Array 6i card. > > BIOS I am seeing 3.4 GIG has T1 Inte Dialogic Card, Dual NICs Smart Array > controller, Dual P4 Processors. > > So the more PCI Type devices it seems that are in the system the less > physical memory you are going to have for Windows. > > NO server has Audio here, no need for it. All servers have CD/DVD drives > and SAS or SCsi HDs. > > I have seen a system with 4GB of RAM show 3.4GB and a system with over 5GB > of RAM show 3.7GB accordingly. > > So it looks like ordering Enterprise Edition is in the works, since a lot > of our application probably arent going to be supported on X64 edition by > the vendors accordingly. > > Z > > ________________________________ > From: Mike Gill [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 09, 2008 3:49 PM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > /PAE wont do anything with a computer that has only 4GB of mem with an OS > that only supports that much memory which include XP and 2K3 STD. It > enables extended (Physical Address Extension) address space beyond 4GB. > What youre seeing right now is what youre supposed to be seeing. These > other people that are seeing 4GB reported as available in the Windows > > Properties > General tab on STD edition is what is perplexing to me. I > would like to think theyre just wrong on something but as Im not there > looking at what theyre looking at, well Maybe they could call up their > MS person and tell them what theyre seeing and ask why theyre seeing it. > Because every piece of documentation Ive read says they shouldnt be > able to do that. > > As for refuting the DEP thing, again, if these machines are running 2K3 > STD and only have 4GB of mem installed then you shouldnt evar see 4GB of > physical mem in the task manager or properties dialogue. > > Answer this. Your machine that shows 3.7GB. Does it have less installed > in terms of components? Are more components disabled in the BIOS than > other similar machines such as onboard audio, extra NICs, or possibly no > CD or hard drives? I would make sense if this is true. > > -- > Mike Gill > > From: Ziots, Edward [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 09, 2008 11:45 AM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > Thanks for the information, I have boxes that have DEP enabled, and dont > have the /PAE in the boot.ini therefore DEP automatically enabling PAE > doesnt seem to go hand in hand. I got 3 DL 380 G5 that will refute that. > > Again going to try the /PAE switch on a system and see if anything changes > accordingly, as compared to a freshly built system with 4GB in it. > > I looked at a few other systems, and some of them have 5GB of memory but > only Win2k3 STD shows 3.7GB on some and 3.4 on others. > > Its pretty weird, > > Z > > ________________________________ > From: Mike Gill [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 09, 2008 1:59 PM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > Intel machines running 32bit versions of Windows can address 4GB of > memory, but not use it. PAE enables address space above 4GB. Its also > required for DEP, and must also be supported by your hardware (e.g. > chipset) and drivers. Why some people here are seeing all 4gb in the > properties dialogue of 2K3 std, I dont get it. I thought I understood > this issue, but obviously there are some real world experiences here > showing otherwise. > > http://blogs.msdn.com/dcook/archive/2007/03/25/who-ate-my-memory.aspx > http://www.microsoft.com/whdc/system/platform/server/PAE/pae_os.mspx > http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx > http://support.microsoft.com/kb/875352 (DEP) > http://tinyurl.com/27obg7 (xp, but still relevant and excellent > explanations) > > PAE on an OS that is limited to 4GB, is only because DEP requires it. > Enabling DEP automatically enables PAE. Otherwise it (PAE) would be a > useless feature on 2K/XP/2K3 std. The BIOS, video cards, memory, et al, > all use address space. When you only have 2GB in the machine, there is a > lot of address space left over and unused by the memory you dont have > installed. When you put all 4GB in the machine however, then there isnt > any address space left available for your installed components (video > cards, BIOS, drives, et al.) which also use this address space, so > something has to give. This is why you see less than 4GB typically. But > then there are these people that are seeing the 4GB in Windows and it > defys what should really be happening as I understand it. > > Vista 32bit w/ SP1 will report installed memory and not useable memory. So > people will see their 4GB, but not actually be able to use it. Weird. > > -- > Mike Gill > > From: Ken Schaefer [mailto:[EMAIL PROTECTED] > Sent: Wednesday, January 09, 2008 12:13 AM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > http://www.microsoft.com/whdc/driver/kernel/mem-mgmt.mspx > > Cheers > Ken > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Sent: Wednesday, 9 January 2008 4:21 PM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > We currently have dozens of servers running all flavors of 32 bit OS and > we see the full 4 GB give or take a few meg depending on the manuf. > > I have seen servers only show 3.5 and its always been a BIOS setting in > our case that I remember. > > From: Ken Schaefer [mailto:[EMAIL PROTECTED] > Sent: Tuesday, January 08, 2008 6:57 PM > To: NT System Admin Issues > Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory > in OS > > > Glen, > > You dont mention whether you are running x64 or x86 edition of Server > 2003. > > Also, depending on the hardware you have the device you might only lose > accesss to a few MB of RAM (or maybe none at all). My HP ML330 only loses > about 60MB, so instead of 4096 it reports 4036, which looks very similar > to 4GB of RAM. > > But you can disagree all you like youd still be wrong :-) > > Please read the memory management whitepaper I posted earlier if you d > like all the details. Alternatively, just read the blog posts from Raymond > Chens blog if you want some quick information. > > Cheers > Ken > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ > ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~ ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
