Question about ASUS P5VDC-MX Motherboard
I have p5vdc-mx motherboard with 512mb rddr2 ram but when i add 1gb ram then it only show 960mb ram,
i will apply 1gb ram alone in motherboard but it only show 480mb ram.
the ram will be same specification please help i dont understand what is the problem on my motherboard my computer specification is-
asus p5vdc-mx 1.x/2.x
bios version 0712, date 11/01/2006
intel pentium 4, 2.66 ghz, 533mhz, 1mb
Your mobo is quite old and its chipset can only support a maximum of 512MB PER SIDE (technically called a bank) of a memory module. I would guess that your 1gb memory module has 8 chips that are all located on one side of the module, putting all of the 1 GB on one bank. Thus, only 512MB of your 1 gb RAM is detected and usable by your motherboard (the remaining 32 mb is most likely being used by your onboard video). You'll need to find a double sided 1 gb memory module (usually 8 chips on each side).
Posted on Mar 13, 2009
The motherboard is only reading one side of your DDR2 RAM. In other words it is reading it as DDR not DDR2. You can check your bios settings and if it still is reading only one side then your mb may not support double sided RAM. If you just bought this you should be able to return it & exchange for a one sided 1 gb DDR2 stick. The other thing you could try is instead of mixing the chips try adding a matched 1 GB stick and see if the mb reads it as 2 GB installed. You should always install RAM in pairs to avoid problems, most boards recommend matched pairs. Hope this helps & please take a moment to rate this solution. Thanks.
Posted on Mar 06, 2009
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