Though some have installed 4G, the max is officially 2. Because of the older chipset, even with 4G installed and using a 64-bit OS, you'll see about 3.2 G total (the chipset doesn't support memory remapping, so it cannot release all 4G for use by the OS, even if the OS is 64-bit (which yours is not - you have a 32-bit OS and will have a 3.2 G ceiling because of it).
It appears that you already have the maximum amount of RAM. The Dell Users Manual for the E1505 states that 2 GB is the maximum for that model. I also checked the Crucial memory selector as the memory suppliers often know more about memory requirements than Dell publishes, but they too say the 2 GB is the max.
Even if you were to be able to install 4 GB, however, you would not get to make use of it. A 32 bit operating system will see a maximum of about 3 GB of RAM due to reserved addresses for the hardware, operating system, and video. In addition, the chipset you have is too old to have the ability to support re-mapping of the additional memory. If you upgraded to a 64 bit operating system, the os could see the memory, but could not use it since the chipset will not support re-mapping the additional memory to addresses above the 3 GB to 4 GB reserved address range.
If you want, you can buy 2 × 2Gb RAM Modules from Crucial, as stated you will get 3.25gb of the 4Gb of RAM usable. My E1505 has 4Gb of RAM installed with Windows 7 Professional running.
I don't know if you will notice much of a performance boost when your using XP though, definately worthwhile if your planning running Vista or 7.
ejn63
11 Legend
•
87.5K Posts
•
321.3K Points
0
May 19th, 2010 15:00
Though some have installed 4G, the max is officially 2. Because of the older chipset, even with 4G installed and using a 64-bit OS, you'll see about 3.2 G total (the chipset doesn't support memory remapping, so it cannot release all 4G for use by the OS, even if the OS is 64-bit (which yours is not - you have a 32-bit OS and will have a 3.2 G ceiling because of it).
jackshack
6.4K Posts
0
May 19th, 2010 15:00
It appears that you already have the maximum amount of RAM. The Dell Users Manual for the E1505 states that 2 GB is the maximum for that model. I also checked the Crucial memory selector as the memory suppliers often know more about memory requirements than Dell publishes, but they too say the 2 GB is the max.
Even if you were to be able to install 4 GB, however, you would not get to make use of it. A 32 bit operating system will see a maximum of about 3 GB of RAM due to reserved addresses for the hardware, operating system, and video. In addition, the chipset you have is too old to have the ability to support re-mapping of the additional memory. If you upgraded to a 64 bit operating system, the os could see the memory, but could not use it since the chipset will not support re-mapping the additional memory to addresses above the 3 GB to 4 GB reserved address range.
Philip_Yip
11 Legend
•
16.1K Posts
•
65.9K Points
0
May 20th, 2010 10:00
If you want, you can buy 2 × 2Gb RAM Modules from Crucial, as stated you will get 3.25gb of the 4Gb of RAM usable. My E1505 has 4Gb of RAM installed with Windows 7 Professional running.
I don't know if you will notice much of a performance boost when your using XP though, definately worthwhile if your planning running Vista or 7.