Problem with a server with 8GB RAM

[ricardo13]

Hi folks,

I'm trying to install UBUNTU SERVER 64 bits in a machine with 8GB RAM.
The problem's that not initialize !!!
The BIOS recognize 8GB of RAM, but software (UBUNTU) doesn't !!!

Somebody have this problem ??

Ricardo

[ricardo13]

I need you !!!
I need to solve this problem !!

Ricardo

[ricardo13]

When I add the fourth memory card (2GB), ubuntu doesn't boot !!
It's work only 6GB !!

Ricardo

[earthpigg]

hi,

can you give us more detail?

does ubuntu install or boot up at all?

if so, please copy/paste the output of this command so we can see it:


free -m

and this one:


uname -a

[ricardo13]

Hi,

I can add more 1GB, but 8GB doesn't boot !!

#free -m
total used free shared buffers cached
Mem: 6899 2338 4561 0 7 434
-/+ buffers/cache: 1895 5003
Swap: 9569 0 9569


#uname -a
Linux frontend 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17 02:45:36 UTC 2009 x86_64 GNU/Linux

Thank you
Ricardo

[ricardo13]

hi,

I added more 1GB, but 8GB doesn't boot !!

#free -m
total used free shared buffers cached
Mem: 6899 2338 4561 0 7 434
-/+ buffers/cache: 1895 5003
Swap: 9569 0 9569


#uname -a
Linux frontend 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17 02:45:36 UTC 2009 x86_64 GNU/Linux

Thank you
Ricardo

[earthpigg]

interesting. try this:

put the potentially bad stick of ram in, and run memtest86 (http://www.memtest86.com/)

[ricardo13]

hi,

memtest+86 ran perfectly !!!
Any idea ??

Ricardo

[earthpigg]

can you show us what exact motherboard you have?


sudo lshw

this is the part we want:


*-core
description: Motherboard
product: P6T DELUXE V2
vendor: ASUSTeK Computer INC.

[ricardo13]

Hi,

Sorry, I traveled and can't reply.

The output is:

*-core
description: Motherboard
product: P35C-DS3R
vendor: Gigabyte Technology Co., Ltd.
physical id: 0
version: x.x

Ricardo

[earthpigg]

is it ddr2 or ddr3?

are you mixing and matching memmory types?

http://www.gigabyte.us/Products/Motherboard/Products_Spec.aspx?ClassValue=Motherboard&ProductID=2749&ProductName=GA-P35C-DS3R

[ricardo13]

I'm using only DDR2.
It's funny !! The machine doesn't work with 8GB, but works with 7GB !!

Thank you
Ricardo