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Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?
Hi, we just installed a new Poweredge R415 that had Windows 2008 R2 x64 (Standard Ed) installed and it's only seeing 4GB of RAM of the 8GB we had installed (it reports 8GB installed; 3.99gb usable). From all of my reading the standard edition of 2008 should be able to see up to 32GB of RAM.
Did I blow it with the OS I chose at purchase or is something really weird? All I've done basically is turned on the system and been checking to make sure it runs ok. I'm a bit baffled by this one since it IS a 64-bit OS and reports as such.
Thanks for any help!
theflash1932
7 Technologist
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16.3K Posts
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August 23rd, 2011 14:00
2008 R2 is 64-bit only, as such can definitely use more than 4GB ... Standard does have a max of 32GB.
I would first check BIOS to make sure that memory "mirroring" is not on. Several 410's shipped with mirroring enabled by default from Dell.
JOHNADCO
847 Posts
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August 23rd, 2011 14:00
You sure all you bios settings are correct? The non R2 2008 standard would be exactly that.
JOHNADCO
847 Posts
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August 23rd, 2011 14:00
I'll be following for sure. We have sort of standardized on the R415 for the next many hosts we buy. The first one we purchased has blown us away on price / performance.
JOHNADCO
847 Posts
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August 24th, 2011 12:00
I think I checked mine on that parameter in bios before putting it in service. I am seeing it all in ESXi......
I forget all the time that is even an option with newer systems.
Justin42
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August 24th, 2011 12:00
Thanks everyone, it was indeed set to have redundant RAM... I just got thrown with the "3.99GB usable" since that's the same message you get on an 32 bit system. Now I can get back to actually setting it up!
Thanks again!