For a laptop, you need to check both chipset limitations, as well as your OS limitations. Check the Intel 945GM chip documentation that i posted in a previous post.
In section 9.2 you can see that the chipset also had an addressing limitation (regardless of what OS you are running), and that various devices use various addresses already. Cheers Ken From: Michael B. Smith [mailto:[EMAIL PROTECTED] Sent: Saturday, 12 January 2008 8:48 AM To: NT System Admin Issues Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory in OS Followup. No boot.ini in Vista or Windows Server 2008, they use BCD. Regardless, I set "bcdedit /set pae ForceEnable" and rebooted, and there is no change in what is reported in task manager. Regards, Michael B. Smith MCSE/Exchange MVP http://TheEssentialExchange.com From: Ken Cornetet [mailto:[EMAIL PROTECTED] Sent: Friday, January 11, 2008 4:00 PM To: NT System Admin Issues Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory in OS Followup. Try adding the /PAE switch in the boot.ini and see if you get any lost RAM back. ________________________________ From: Michael B. Smith [mailto:[EMAIL PROTECTED] Sent: Friday, January 11, 2008 1:21 PM To: NT System Admin Issues Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory in OS Followup. I have 4 GB in my AMD Turion (x86 mode) Vista laptop and can only use about 3.5 GB. When I have a "free" week, I'll upgrade to x64. C:\Users\Michael>memtest 'memtest' is not recognized as an internal or external command, operable program or batch file. C:\Users\Michael> Regards, Michael B. Smith MCSE/Exchange MVP http://TheEssentialExchange.com From: Mike Gill [mailto:[EMAIL PROTECTED] Sent: Friday, January 11, 2008 1:05 PM To: NT System Admin Issues Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory in OS Followup. All that has been proven is Windows can't consistently report one piece of information from one location to the other. I indicated earlier that Vista SP1 will show memory installed and not useable memory as well... which will start this conversation all over again then. ;) I wonder what memtest would show? Also, I know we're speaking of Windows mostly here, but this isn't a only limitation so much of Windows or 32bit operating systems, but more a limitation of x86. As a side note, AMD doesn't support /PAE, and I haven't put any time in to finding out what AMD does in these cases. -- Mike Gill From: Ziots, Edward [mailto:[EMAIL PROTECTED] Sent: Friday, January 11, 2008 6:22 AM To: NT System Admin Issues Subject: RE: HP DL380 G5 and Win2k3 R2 Standard not showing maximum memory in OS Followup. Importance: High TO all, ( Ken I hate to say it, but I have seen this with me own eyes, and the /PAE switch does enable you to see the 4GB) I have proven that the /PAE switch has worked on a DL 380 G5 system with 4096 MB of RAM at post. Running Windows 2003 R2 SP1. Before putting the /PAE switch in the boot.ini the memory available to Windows ( via MSinfo32.exe and winver was 3.4GB) After putting the /PAE switch in the boot.ini the memory availbile to Windows ( via Msinfo32.exe and Winver was 4GB) The system I tested on was built with 4GB of RAM already in the system, and when it was finished being built showed 3.4GB of RAM available to windows. I don't think this would change if you just added 1-2GB of RAM to a 2GB system to bring it up to 4GB. If someone else with the same architecture can confirm my findings please so we can settle this matter once and for all. Z ~ Upgrade to Next Generation Antispam/Antivirus with Ninja! ~ ~ <http://www.sunbelt-software.com/SunbeltMessagingNinja.cfm> ~
