[DeTomaso] NPC - Computer Geek Help needed- BIOS, FSB, and Other Esoteric Geeky Details

michael@michaelshortt.com michaelsavga at gmail.com
Sat Feb 7 22:30:38 EST 2009


Thanks, I am running Vista 64bit.

On Sat, Feb 7, 2009 at 10:27 PM, Trevor Fougere <trevor at fougere.com> wrote:

> Your motherboard supports DDR2 memory up to 8 GB.  The speed of the memory
> it supports is DDR2-800 or up to DDR2-1200 if EPP (Enhanced Performance
> Profile) memories are used.
>
> On your motherboard, the DDR2 sockets 1 and 3 are gray and 2 and 4 are
> black. In order to enable dual channel feature, which doubles the maximum
> theoretical transfer rate from the memory system, you need to install two
> memory modules on sockets with the same color (or four modules, which will
> use all available sockets).
>
> So 8Gb would be best done by installing four 2Gb DDR memory sticks in all
> four sockets.
>
> The rub though, is your operating system.  All 32 bit Windows operating
> systems support a maximum of 4 Gb.  In fact, the situation is somewhat
> worse
> than that because Windows will not support an application using more than
> 2Gb of memory, unless the system is booted using the /3GB switch in the
> boot.ini file.
>
> For example:
>
> [boot loader]
>
> timeout=30
>
> default=multi(0)disk(0)rdisk(0)partition(2)\WINNT
>
> [operating systems]
>
> multi(0)disk(0)rdisk(0)partition(2)\WINNT="????" /3GB
>
>
>
> So the reality is that anything more than 4Gb isn't going to get used, and
> even with 4Gb you are really only going to see the system use anywhere from
> 2.5 - 3.5Gb.
>
>
>
> This limit goes away in 64 bit operating systems.  But you will be somewhat
> out on the bleeding edge, probably still running 32 bit applications that
> ignore the new limits, and bear in mind that 64 bit systems need different
> drivers and are not fully backwards compatible with 32-bit stuff.
>
> So.if your Operating System is 32 bit, you really only need four 1Gb
> DDR2-800 modules or two 2Gb modules (being sure to install them in the same
> colored sockets).  Anything beyond that is a waste.
>
>
>
> Trevor
>
>
>
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-- 







Michael L. Shortt
Savannah, Georgia
www.michaelshortt.com
michael at michaelshortt.com
912-232-9390


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