Miscellaneous > Technical Support

13.4MB of memory is missing!

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Aloone_Jonez:
I removed the new module and Linux reported 238MB of RAM. I swapped the old module with the new and it still reported 238MB.


Let's see if it's a rounding error as you descried above:
238

Lead Head:
RAM has always been in MiB, and still is (as far as I know), hence why 1GB of ram is advertised as 1024MB

Aloone_Jonez:
That's what I thought.

MiB makes sense when you think of the addressing system on the memory IC.

I don't know though, what else could explain this mystery?

I ran a memtest and it reported 504MB so I assume it's a problem with the kernel as it's the only thing that seems to report a lower figure.

Lead Head:
Do you have an onboard modem/ethernet/sound that could be using some of that ram?

Aloone_Jonez:
I don't know, I would've thought that the BIOS would have taken that into account like it did for my on-board graphics.

I've installed a graphics card now so I'll have a look at the memory reported under Linux next time I reboot.

Windows: Control Panel -> System says 512MB and task manager says 523,760KB which works out just under 512MB but it's an acceptable rounding error.

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