Dell Latitude D620 with 4GB RAM

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My Dell Latitude D620 at work had a 1024MB DDR2-667 PC2-5300 SO-DIMM. I purchased two 2048MB DDR2-677 PC2-5300 SO-DIMMs and installed them. My operating system is Ubuntu hardy (development branch) running kernel 2.6.24-15.
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My Dell Latitude D620 at work had a 1024MB DDR2-667 PC2-5300 SO-DIMM. I purchased two 2048MB DDR2-677 PC2-5300 SO-DIMMs to try to expand RAM to 4096MB.
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My operating system is Ubuntu hardy (development branch) running kernel 2.6.24-15.
With BIOS Revision A02 and 3072MB RAM installed, I was able to use ~ 3033.5MB.
With BIOS Revision A02 and 3072MB RAM installed, I was able to use ~ 3033.5MB.

Revision as of 14:36, 7 April 2008

My Dell Latitude D620 at work had a 1024MB DDR2-667 PC2-5300 SO-DIMM. I purchased two 2048MB DDR2-677 PC2-5300 SO-DIMMs to try to expand RAM to 4096MB.

My operating system is Ubuntu hardy (development branch) running kernel 2.6.24-15.

With BIOS Revision A02 and 3072MB RAM installed, I was able to use ~ 3033.5MB.

$ head -1 /proc/meminfo
MemTotal:      3106300 kB

Surprisingly, with BIOS Revision A02 and 4096MB RAM installed, I was only able to use ~ 3033.7MB!

 $ head -1 /proc/meminfo
MemTotal:      3106528 kB

After upgrading my BIOS to the BIOS Revision A09 (D620_A09.EXE) using the process here, I was still only able to use ~3287.5MB.

$ head -1 /proc/meminfo
MemTotal:      3366396 kB

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