Greetings,
I just installed FC6 on a Dell 6800 with 32GB of ram. When I run the free command it reports I only have about 15GB available. I had FC4 on this machine and it saw all 32GB of Ram. I checked the BIOS and it seems to see all 32GB as well.
Does anyone know if there is a known problem with FC6 seeing this much RAM?
--741
On Wed, 2006-12-27 at 15:02 -0500, SevenFortyOne wrote:
Greetings,
I just installed FC6 on a Dell 6800 with 32GB of ram. When I run the free command it reports I only have about 15GB available. I had FC4 on this machine and it saw all 32GB of Ram. I checked the BIOS and it seems to see all 32GB as well.
Does anyone know if there is a known problem with FC6 seeing this much RAM?
Are you sure you're installing the x86_64 version ?
--741
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SevenFortyOne wrote:
I just installed FC6 on a Dell 6800 with 32GB of ram. When I run the free command it reports I only have about 15GB available. I had FC4 on this machine and it saw all 32GB of Ram. I checked the BIOS and it seems to see all 32GB as well. Does anyone know if there is a known problem with FC6 seeing this much RAM?
What does /var/log/dmesg say about this? I have a similar problem with my laptop (410MB detected instead of 512MB) and dmesg told me why. I still haven't found a resolution to it though.
On Fri, 2006-12-29 at 20:50 +0530, Vivek J. Patankar wrote:
I have a similar problem with my laptop (410MB detected instead of 512MB) and dmesg told me why. I still haven't found a resolution to it though.
The first obvious thing that springs to mind: RAM being divided between some for the graphics card and the rest for the system.
Tim wrote:
On Fri, 2006-12-29 at 20:50 +0530, Vivek J. Patankar wrote:
I have a similar problem with my laptop (410MB detected instead of 512MB) and dmesg told me why. I still haven't found a resolution to it though.
The first obvious thing that springs to mind: RAM being divided between some for the graphics card and the rest for the system.
Umm... not exactly. The actual installed RAM is 512M. 490432K is what is left after the graphics card takes it's share. Yet only 408804K is available for Fedora. This is what dmesg told me.
"Your BIOS doesn't leave a aperture memory hole Please enable the IOMMU option in the BIOS setup This costs you 64 MB of RAM Mapping aperture over 65536 KB of RAM @ 4000000 Memory: 408804k/490432k available (2409k kernel code, 81240k reserved, 1722k data, 204k init)"
A bit of searching revealed that this problem has been discussed on this list before but in those cases there were BIOS settings needed to be changed and the hardware involved were servers. But the BIOS in this notebook (Phoenix NoteBIOS 4.0 Release 6) is devoid of any configuration parameters other than passwords and video memory. The laptop is an Acer Aspire 5004NWLMi.
As suggested I tried the _64 version of FC6 but that won't even boot. My Server is running Xeon processors and it is my understanding the the _64 version of FC6 is for the AMD.
Any other ideas?
--741
On 12/27/06, SevenFortyOne rez741@gmail.com wrote:
Greetings,
I just installed FC6 on a Dell 6800 with 32GB of ram. When I run the free command it reports I only have about 15GB available. I had FC4 on this machine and it saw all 32GB of Ram. I checked the BIOS and it seems to see all 32GB as well.
Does anyone know if there is a known problem with FC6 seeing this much RAM?
--741
On Thu, 4 Jan 2007 09:26:15 -0500 SevenFortyOne rez741@gmail.com wrote:
As suggested I tried the _64 version of FC6 but that won't even boot. My Server is running Xeon processors and it is my understanding the the _64 version of FC6 is for the AMD.
The FC 64bit versions are for any CPU with the AMD 64bit extensions or reasonable clones thereof. That includes some of the newer Intel processors.
If the boot stops immediately saying long mode is not available your processor is 32bit only.
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Alan Cox -
Eric Donkersloot -
SevenFortyOne -
Tim -
Vivek J. Patankar