View Full Version : [ubuntu] RAM issue

August 18th, 2010, 09:22 PM
Hi. I recently purchased a second stick of 1GB RAM (400Mhz) from Corsair (the same exact stats as the 1GB of RAM currently in my desktop).

I installed the RAM and the computer powered on.

However, when I run
free -omThis is the result I get:

total used free shared buffers cached
Mem: 607 472 134 0 71 176
Swap: 1608 0 1608
Which doesn't sound like 2GB worth of RAM to me.

I was wondering if there was anything I had to do for Ubuntu 10.04 LTS to recognize the RAM.

August 18th, 2010, 09:33 PM
Not normally. You could try installing memtest86+. Select it from the boot menu (you might have to press ESC to get to it). It will show info about the modules you have installed.

August 18th, 2010, 10:06 PM
Also check your BIOS to see if it is showing up there.

August 21st, 2010, 07:42 PM
I'm preparing some pictures to show you what's going on.
I installed memtest86+, and the "show memory configuration" option indicates that there are, indeed, two sticks of 1024MB with 400 Mhz speed.
However, it only tests 624MB. (and usually with 200-333Mhz of speed, so not full speed).
After running the memtest for 66+ hours (don't judge! I was gone all week-end), I did find some errors in the test.
The boot screen only shows 624MB.
I have a built-in video card which takes ~128M of RAM for framebuffer in the BIOS.
I -cannot- find an option in the BIOS to try and manually set the RAM settings.

I'm afraid this may mean a problem with the motherboard.
Let me know what you think. I'll post pictures of this stuff soon.

August 21st, 2010, 07:53 PM
Sorry for the double post, but here are the pics: