ASUS P5VDC-X motherboard wont recognise ram upgrade

Update the BIOS

http://drivers.softpedia.com/get/BIOS/Asus/ASUS-P5VDC-MX-BIOS-0809.shtml

means ur board only support max 1gb ram can u give me detail of ur system means details of processor,motherboard etc.... write it on a testimonial ill definately let u know

Helo frnd i think u should check the fsb of ram is compatible with ur mobo then try to install a compatible ram

Try updating the BIOS. Also what O.S. are you running

with rams, if the memory it has is higher than that of your cpu, the pc will not boot up or if it is too low compared to your cpu again.

thus, you say it has got two slots right, remove both of the 512's and insert the 1gig only, run your computer, i am sure it will boot up nicely. switch it off. put one 512, if it does not boot then you should know that your ram has an excess of memory that your cpu could not apprehend to.

post a coment if this does not work.

thanks,

wonder

Ok i am just guessing here

maybe your motherboard does not support

ddr2 rams and hence it wont boot up as it does not detect any ram in the slots......

try to boot with one old and one new ram (ddr and ddr2) and post the result

are you sure whether the ddr2 ram is supported?

HI it sounds like a speed issue,check your
motherboard info for support or if you
have no manual download it from asus site
check for ddr2 support via the manual

regards john sykes

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).

Hi KF27,

Your system has and supports PC SODIMM DDR RAM with a MAX support of 1GB. You currently have 512MB of RAM (2x 256MB), so your only option is 2x 512MB of RAM..

I hope this helps you out!

how can insttol the 2GB DDR2 667