The Yamaha AN1x Synthesizer mailing list

check what it says about what configurations you can use of different types
of modules. Also check if there are any jumpers that you need to set (if an
older motherboard).


aireq

-----Original Message-----
From: elektro dan [mailto:elektro_dan@...]
Sent: Friday, January 25, 2002 2:12 PM
To: AN1x-list@yahoogroups.com
Subject: [AN1x] Re: [AN1x-list] OT- ram related problem on pc, please
help!


hi bruce,

i checked the motherboad (ms-6309) manual and it said
it supports a maxium memory size of 1.5gb (32mx8).

it's weird. each ram module is fine and the exact
same. the ram slots all work but i can't use two
modules of ram at the same time.

thanks for the reply,

elektro dan.


--- Bruce Wahler <bruce@...> wrote:
> Dan,
>
> It sounds like your motherboard cannot support more
> than 256MB of RAM.  The fact that you have the
> latest BIOS is great, but that cannot eliminate
> hardware incompatibilities.  For example, I have a
> motherboard with two slots, filled with 512MB SDRAM
> DIMMs.  Even though there are now 1MB SDRAM DIMMs on
> the market, I cannot use them, because the hardware
> configuration cannot address 1MB DIMMs, period.
>
> To try to explain, without getting overly technical:
>  Each DIMM module has a number of signals coming to
> it to address the individual bytes of data in a
> row/column method.  Each of these signals if
> connected to hardware in your chipset that keeps
> track of the memory being used, and the next
> location to be accessed.  Depending on the memory
> used, the external signals may be used for different
> purposes.  If I had to venture a guess, your PC has
> enough external signals/chipset hardware to address
> a 256MB DIMM, but only enough internal/external
> hardware to support 256MB of memory.  This is why
> you can use 2 x 128MB or 1 x 256MB, but 2 x 256MB
> will not work.  In a perfect world, the BIOS would
> compensate for this -- or at least, tell you that
> the memory configuration was wrong -- but it's
> difficult to support many different sizes of memory
> and detect wrong combinations, too.
>
> If you really want 512MB of RAM, you need a new
> motherboard.  :^(
>
> Regards,
>
> -BW
>
> --
> Bruce Wahler
> Ashby Solutions   http://music.ashbysolutions.com
> CloneWheel Support Group moderator
> 978.386.7389  voice/fax
> bruce@...
>
>


=====
============================
           DAN C.

      Toronto, Canada

email> elektro_dan@...
============================

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