Only 2.4GB memory is found in my Lenovo S230u Twist while 4GB mem is configured

English Install/Boot/Login
1

Hi,

My laptop is Lenovo ThinkPad Twist, model 33473QC with 4GB mem, OS openSUSE Leap 42.1 (x86_64) 64-bit.
But now, the info below is showed:


             total       used       free     shared    buffers     cached
Mem:       2526768    2286008     240760     183296        876    1206052
-/+ buffers/cache:    1079080    1447688
Swap:      2103292          0    2103292

Who can tell me what happened to my mem? Thank you.

2

Run memory test should be on the install disk menu. Run over night

On a note book the swap should be about the same as memory if you are going to hibernate.

What does the BIOS say it is?

3

Part of address space below 4G is used to access PCI cards; it depends on specific system/BIOS how much space is reserved. Memory that overlaps this space is not accessible. Some BIOSes offer option to remap this memory above 4G.

4

Yes and also graphic chips may be using at least some on notebooks though probably would not account on the amount you are missing