my memory bank is 256,but when i install fedora 9 ,there is only 128MB is available ,anyone can tell me why ? I coud not understand ?

maybe you have similar experice,give me some suggestion please!

ps: Please don't ask me why i use fedora 9 anymore!

Type in terminal and expand the terminal so you can see the whole readout. That will give you a breakdown on what is using how much of what. That is the best way for you to see where ram is being used and why.

256MB. Bee glad it boots.

I am afraid you didn't understand ,my question is that my os can only recognize 128MB RAM ,but my memory bank is 256MB ,why this happens and how to solve it to let my os can recognize another half RAM.

In the terminal, this is what most mean to say when a command example is given in a Code window.
Including your machine specs would help-- which CPU, motherboard info, type of RAM (PC-2, perhaps?) -- would assist in making a recommendation, too.

Offhand, I'd say look for a couple 256 sticks, at a minimum, to get machine reasonably up-to-par for even an old-machine minimalist distro like antiX or CrunchBang or Zenwalk Openbox.

Easy enough in a forum format. I take it bios sees the 256MB?

Edit: a output is called for in this thread also.

ok, i will try!

I am afraid you didn't understand ,my question is that my os can only recognize 128MB RAM ,but my memory bank is 256MB ,why this happens and how to solve it to let my os can recognize another half RAM.


At the beginning of startup of os,it can only recognize 128MB,in other words,the os can only control 128MB,but my memory bank is 256MB,
i want to konw why my os can not identify the other half of my memory bank.


ps :if you don't understand my question,please don't answer it,it is a waste of time ,for both you and me

"In the terminal, this is what most mean to say when a command example is given in a Code window."

i don't understand what you mean!

i will give the detail information of my computer later

"ps :if you don't understand my question,please don't answer it,it is a waste of time ,for both you and me"

basic vocabulary understanding is paramount in the beginning -- I suggest brushing up.

outahere!

????
what??

even on MS windows the system RAM is not called that
it is "system ram"
if you are referring to the 2 or 4 cards on the MOBO

but without any information like the output of of a ram test
there is a very old and outdated version on the fedora 9 install cd's ( the first of the 5 cd's)

a wild guess and "shot in the dark"
a bad ram stick

are you refering to the 'memory count' when you first turn on the machine?

i would start by doing what was told and entering BIOS (should be by hitting DELETE or some other key such as F1, F2 or escape a few times when you first turn on the computer to enter the BIOS setup utility, this will report how much ram your hardware sees

if it is only seeing 128M even though you SHOULD have 256MB than it is possible that you simply have a bad ram stick, try pulling both sticks, putting one in at a time and running the machine with only the one stick and see what happens, then pull it and try the other one.

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thank you very much !

I understand the problem!

thanks!

no problem

p.s.
memory bank is a valid term to use, though i don't think it quite means what the OP thinks it means.

http://en.wikipedia.org/wiki/Memory_bank

If I were to guess why a system with 256 installed and only 128 available to OS then it would be that the other 128 is being used by the hardware.

At one time some very old systems had a bios edit to allow the installation of windows NT and you could limit ram to 128 no matter how much you had installed. After you had windows NT installed you could go back and undo bios checkbox to allow the OS to see the rest of the ram. Bet you didn't know that.

But my computer has never installed windows NT,and i don't you which term is to limit the use of RAM

Anyway ,thanks!