My laptop shows me only 4091 Mb of RAM instead of 4096Mb that it should. When I remove one piece of memory (it doesn not matter which one), it then shows 2046Mb.
I do not remember when it started, but when it was new, it showed the full 4096Mb. After Windows has been re-installed it starts to shows 4094Mb, and then 4091Mb.
What could the cause of the issue be?
The Nvidia 210 has separate 512 Mb (well, as it says on laptop: "4GB RAM, 512MB video" – hope if it will be shared memory it will be printed "4GB for RAM and video").
I was using many strange OS on it – like Backtrack Linux Live DVD, Kolibri OS (that is 1.44 Mb). Could it be some kind of loop of RAM-disk or evil zero-level hypervisor?
I tried to boot the system with another HDD and even with SATA-to-CF adapter and CF card – no matter, the lack of memory stays on 🙁 .
Best Answer
The BIOS needs some memory for things like ACPI tables, power management, and so on.