System detects incorrect amount of memory [SOLVED]

JollyRoger · n00b Joined: 24 Mar 2006 Posts: 24

Hello,

I just purchased an extra 1GB stick of DDR2 memory for my laptop (Dell Latitude D610). 512MB of memory was already present in the system. After installing the new memory, Windows detects 1.5Gb of memory as being available. However, Linux only detects 881Mb.

didymos · Posted: Tue Jun 12, 2007 6:28 am Post subject:

Is CONFIG_HIGHMEM4G set to yes in your kernel config?
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Thomas S. Howard

Mr_Shameless · Posted: Tue Jun 12, 2007 6:30 am Post subject:

I guess it's a setting in the kernel configuration.

You should recompile the kernel with this option:

"Processor type and features" --> "High memory support" (choose 4G)

In case you dont have a kernel source yet, this page is a comprehensive guide on how to do everything.

JollyRoger · n00b Joined: 24 Mar 2006 Posts: 24

Yea, that option is not set but I thought that was only necessary if you have over 2GB or 4GB of memory. I'll try it and let you know.

Thanks.

Mr_Shameless · Posted: Tue Jun 12, 2007 7:00 am Post subject:

JollyRoger · n00b Joined: 24 Mar 2006 Posts: 24

That worked.