drjoe Posted March 25, 2007 Share Posted March 25, 2007 I have 4GB memory installed on my Asus P5W DH Deluxe board. When I select the BIOS...it shows: Installed Memory: 4096 Appropriated Memory: 1408 I have used VistaBoot 3.1 to turn on DEP and PAE...no go. Asus says it is the Operating System. I have 2 ASUS EAX1650PRO Crossfire cards installed. Below is my System Profile where Total System Memory should read 4096 MB and/or something close to that. Anyone know how to acheive the full memory? ++++++++++++++++++++++++++++++++++++++++++++++++++STATS++++++++++++++++++++++++++++++++++++++++++++++++++OS Name Microsoft® Windows Vista™ Ultimate Version 6.0.6000 Build 6000 Other OS Description Not Available OS Manufacturer Microsoft Corporation System Name P-III-1 System Manufacturer USTEK COMPUTER INC System Model P5W DH Deluxe System Type X86-based PC Processor Intel® Pentium® D CPU 3.40GHz, 3400 Mhz, 2 Core(s), 2 Logical Processor(s) BIOS Version/Date American Megatrends Inc. 1901, 1/24/2007 SMBIOS Version 2.4 Windows Directory C:\Windows System Directory C:\Windows\system32 Boot Device \Device\HarddiskVolume1 Locale United States Hardware Abstraction Layer Version = "6.0.6000.16407" User Name P-III-1\Joe Time Zone Central Daylight Time Total Physical Memory 2,686.50 MB Available Physical Memory 1.67 GB Total Virtual Memory 6.45 GB Available Virtual Memory 5.42 GB Page File Space 3.91 GB Page File L:\pagefile.sys++++++++++++++++++++++++++++++++++++++++++++++++++++Thanks, Joe Link to comment Share on other sites More sharing options...
ripken204 Posted March 25, 2007 Share Posted March 25, 2007 if your using 32bit vista then thats why, 32bit cant handle 4 gigs. you need the 64bit vista to use all of ur ram. Link to comment Share on other sites More sharing options...
amenx Posted March 25, 2007 Share Posted March 25, 2007 (edited) Altho 4gigs is the max for 32bit Vista, the top memory addressing of that is allocated to your mobo devices, hardware. Graphics cards, especially with 512mb mem or more can push down your usable system RAM to below 3gb. Whats your graphics card? Edited March 25, 2007 by amenx Link to comment Share on other sites More sharing options...
drjoe Posted March 25, 2007 Author Share Posted March 25, 2007 My memory cards have 256 MB onboard memory. Thanks for the answers! Link to comment Share on other sites More sharing options...
cluberti Posted March 25, 2007 Share Posted March 25, 2007 Just to finalize the thread - this has been discussed before, so check those threads out as well. They'll give you some good info. Link to comment Share on other sites More sharing options...
SirZRX Posted March 31, 2007 Share Posted March 31, 2007 32 bit versions of windows can only adresss 4gb of memory including your system ram, your from from your videcard, and your ram instaled in your mobo, if you do some math u will realize the following = 4GB RAM - 512*2 RAM( your 2 videocards) - Memory on your mobo - Memory on your CPU = do the math and thats like -3GB ram, remove one Video card and your ram will increase. sorry for my english xD. Link to comment Share on other sites More sharing options...
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