Possible Duplicate:
Why does Windows only show about 3.5GB of my 4GB+ of RAM?

i have 8 GB of ram in my desktop but it shows "3.47gb is usable" how to get whole usage of the ram. please help

thanks in advance.

link|improve this question
feedback

closed as exact duplicate by Journeyman Geek, ChrisF, Shiki, Sathya Jul 18 '11 at 11:18

This question covers exactly the same ground as earlier questions on this topic; its answers may be merged with another identical question. See the FAQ for guidance on how to improve it.

2 Answers

You need to install a 64 bit operating system to use more than 3.47GB Ram.

link|improve this answer
feedback

Seeing that you used the tag 64 bit I am going to assume you are running 64 bit.

You will want to check and make sure that your Motherboard is compatible with that amount of ram. Some only offer an upper limit of 4GB.

You could have a faulty RAM stick. Simple way to check this is to use each stick and boot the machine. If they both read what they are suppose to then the issue is likely the above one or the below one.

Also as mentioned above 32 bit machines cannot run more than 4 GB.

link|improve this answer
to be fair, it was added on by @MichaelK – Sathya Jul 18 '11 at 11:17
@Sathya the confusion! – harper89 Jul 18 '11 at 11:18
feedback

Not the answer you're looking for? Browse other questions tagged or ask your own question.