I have 4GB but Fedora only recognize 2,87GB

[Mascara Negra]

Hi everyone,

I have a P5GC-MX/1333, i already had 2 GB running on my Fedora 12 x86_64 , yesterday i bought another memory to my computer, now i have 2x2GB 667 Kingston both.

But when i log in fedora 12 don't recognize all memory, onle 2,87GB, somebody can help me pleeeeeeease.

Best regards,
Valter Henrique.

[Ishwon]

If you're using 64 Bit version of Fedora, like you mentioned, it should definitely see 4Gb. Maybe you should update your kernel.

[Mascara Negra]

If you're using 64 Bit version of Fedora, like you mentioned, it should definitely see 4Gb. Maybe you should update your kernel.

I already do that Ishwon, i enter on my bios now and see that 4096Mb recognized and 10~~ appropriated and 29~~ usage....

Ohh, forgot to say before, i have a video card is a Geforce 950gt ddr3

Any idea?

[Ishwon]

Check you BIOS settings, and look for "MEMORY Hole" remapping option. It should be in the Memory section. Enable it. I searched regarding this issue and came up with the possibility of 'memory hole' which is not showing you full memory available.

[Mascara Negra]

Check you BIOS settings, and look for "MEMORY Hole" remapping option. It should be in the Memory section. Enable it. I searched regarding this issue and came up with the possibility of 'memory hole' which is not showing you full memory available.

There was no option for the memory hole remapping.

[ultra magnus]

Can you post the output of uname -a please?

[Ishwon]

Last option:

yum install kernel-devel

I can't figure smething else.

[stevea]

Yes post your uname -a
Also install and run memtest-86+. It's a fedora package, but you have to boot it from grub.

yum install memtest86+

Add lines like this to /etc/grub.conf (as root)
title memtest86+
kernel /boot/memtest86+-4.00

Then reboot, interrupt grub and select the memtest86+ boot.

You'll see a continuous memory test running and it reports the size, speed etc of your memory.
99% sure this is a BIOS issue, assuming you have the 64bit kernel as you state.

[Mascara Negra]

Can you post the output of uname -a please?

Linux Eniac 2.6.32.16-141.fc12.x86_64 #1 SMP Wed Jul 7 04:49:59 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux

[marko]

That board has an intel GMA 950 onboard video card, did you turn that off in the bios? That video would steal a chunk from your RAM for video. It doesn't really explain the full 1.1 GB you lost, it would take away less than that.