Vista x64: 6 GB RAM installted, 4991 MB shows up

Hi all:

I am running Vista x64 on an ASUS P5 motherboard which says it can support
up to 8 GB RAM. I have 2x2 GB chips in memory bank one, and 2x1 GB chips in
memory bank 2 for a total of 6 GB. However when I start the machine, in the
BIOS the memory shows up as 5056 MB, and in Vista I show 4991.

Can anyone make some suggestions?

Thanks.

John.

Colin
Fri Feb 29 15:38:17 PST 2008

Take out one of the 1x1GB and see what you get. Then try with just the
other one in. One slot or one dimm may not be right.

"John Straumann" <jstraumann@hotmail.com> wrote in message
news:EFAE326A-069D-4A56-B59F-7750A98829F4@microsoft.com...
> Hi all:
>
> I am running Vista x64 on an ASUS P5 motherboard which says it can support
> up to 8 GB RAM. I have 2x2 GB chips in memory bank one, and 2x1 GB chips
> in memory bank 2 for a total of 6 GB. However when I start the machine, in
> the BIOS the memory shows up as 5056 MB, and in Vista I show 4991.
>
> Can anyone make some suggestions?
>
> Thanks.
>
> John.

DevilsPGD
Sat Mar 01 21:07:28 PST 2008

In message <EFAE326A-069D-4A56-B59F-7750A98829F4@microsoft.com> "John
Straumann" <jstraumann@hotmail.com> wrote:

>I am running Vista x64 on an ASUS P5 motherboard which says it can support
>up to 8 GB RAM. I have 2x2 GB chips in memory bank one, and 2x1 GB chips in
>memory bank 2 for a total of 6 GB. However when I start the machine, in the
>BIOS the memory shows up as 5056 MB, and in Vista I show 4991.
>
>Can anyone make some suggestions?

Hope into the BIOS, look for an option mentioned memory remapping (post
back if you can't find it, I'll look up the exact text), it mentions it
should be set one way for 32-bit and one way for 64-bit.

Flip it to the opposite (sorry, I can't tell you if it's enabled or
disabled, that varies depending on the specific motherboard and BIOS
version, I've got both varieties here) and see if that fixes your woes.

John
Sun Mar 02 04:49:01 PST 2008

That did it, thanks!

John.

"DevilsPGD" <spam_narf_spam@crazyhat.net> wrote in message
news:q69ks3da2j4cn5ua836j1uqqifli7n4ahe@4ax.com...
> In message <EFAE326A-069D-4A56-B59F-7750A98829F4@microsoft.com> "John
> Straumann" <jstraumann@hotmail.com> wrote:
>
>>I am running Vista x64 on an ASUS P5 motherboard which says it can support
>>up to 8 GB RAM. I have 2x2 GB chips in memory bank one, and 2x1 GB chips
>>in
>>memory bank 2 for a total of 6 GB. However when I start the machine, in
>>the
>>BIOS the memory shows up as 5056 MB, and in Vista I show 4991.
>>
>>Can anyone make some suggestions?
>
> Hope into the BIOS, look for an option mentioned memory remapping (post
> back if you can't find it, I'll look up the exact text), it mentions it
> should be set one way for 32-bit and one way for 64-bit.
>
> Flip it to the opposite (sorry, I can't tell you if it's enabled or
> disabled, that varies depending on the specific motherboard and BIOS
> version, I've got both varieties here) and see if that fixes your woes.

DevilsPGD
Sun Mar 02 08:26:41 PST 2008

In message <7B391EA9-5A67-46A3-A3CA-517EC077F50E@microsoft.com> "John
Straumann" <jstraumann@hotmail.com> wrote:

>That did it, thanks!

Glad to hear it!