Help with Vista64 + 4GB memory (asus P5b)

[Nv40]

I bought recently 4GB high speed DDR2 1000 memory ...that many reviewers claim can be O/C to far more mhz for the new processors.

my system specs are
-Asus P5B (vanilla)
-2 x 2Gb Gskill DDR2 1000
-Intel core2 E6600 (2,4ghz)
-Geforce8800gts (~640megs)
-Vista 64 bits..

no overclock..

I have the latest Bios from asus.. with support for 1333 FSB and chipset intel drivers too..

When i load the machine , only 3GB from 4GB can be seen in the bios ... same inside windows vista properties ..

is that normal ?

i tested every 2GB separately ,and they work fine.. i tried downcloaking the memory to run a 533mhz and also diferent DIm slots ,ie,, first two , last two ,same colors ,with same results..

just for testing purposes ,added annother memory dim that i had, of just 1GB ,and for my surprise ,the memory was added correctly.
now i have 2x2GB dims + 2x1GB = 6GB physical memory , but the computer still steal a nice 1GB of ram. so it says 5gb in the OS properties and in the bios.


my questions are :

1) Is there is something wrong with my motherboard ? (manual says can support up to 8GB of non ECC 533 memory) steal 1gb ,
(but only if i have more than 2GB )or do i need to configure vista64 in a diferent way?


2) Anyone with 4GB and vista64bits how much memory your BIOS and OS display ?

Thanks for your help..

[methimpikehoses]

you need to remap your memory in the bios... there should be a setting to change in one of the bios menus.

[$n][pErMan]

you need to remap your memory in the bios... there should be a setting to change in one of the bios menus.
^^^ Yes. You will find an option in the BIOS called "Memory Remapping". You must Enable this :)

[Nv40]

yes... that did the trick... :D

THanks alot!!

[methimpikehoses]

anti-fail!

http://web.umr.edu/~ddavison/temp/BoratSuccess2.jpg