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[ubuntu] BIOS Read full 512MB but Ubuntu/Windows/Memtest86 Reads different

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linux-howto

http://ubuntuforums.org – Hi all This is a laptop I am trying to fix. For the longest time I thought there was a bad mem stick. Yesterday I bought new ram for it but it won't come till Friday. So this HP laptop has 512MB (2x256) of ram installed. The BIOS will read all 512MB of memory. Windows / Ubuntu and Memtest86 read different Ubuntu: 368.9Mb Memtest86: 383Mb Windows XP: I forget exactly...It was in the 300-400 range. I tried each mem stick individually and the BIOS reads 256Mb on each in both memory slots available. Memtest86 reads 127MB in both memory slots available. Ubuntu froze loading probably cause the (Hardware)