Justin42
1 Copper

Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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!

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theflash1932
5 Iridium

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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.

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JOHNADCO
3 Argentium

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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You sure all you bios settings are correct?       The non R2 2008 standard would be exactly that.

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JOHNADCO
3 Argentium

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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.

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theflash1932
5 Iridium

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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.

Justin42
1 Copper

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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!

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JOHNADCO
3 Argentium

Re: Poweredge R415 / Windows 2008 R2 X64 only sees 3.99GB RAM?

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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.

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