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RAM acting VERY strange.

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Name: Ryan F
Date: October 23, 2005 at 15:47:17 Pacific
OS: Windows XP SP2
CPU/Ram: 750 mgz / 256mb RAM
Comment:

Recently my system has been running INCREDIBLY slow. I was totally unable to figure out the problem (after many scans and fixes and defraggings) until I looked at my system specs through the control panel. I KNOW my RAM is 256 mb but for some reason it is telling my I have 64 mb RAM and that is exactly how it is acting. Can someone tell me how to fix this?



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Response Number 1
Name: jam
Date: October 23, 2005 at 16:28:19 Pacific
Reply:

Need more info than that. Did you recently change or upgrade the RAM? I've never heard of simply losing 192MB...are you sure it was ever recognized as 256MB?

It sounds like you installed high-density RAM in a board that uses low density...that would account for 256MB being seen as 128MB. If you're running onboard graphics on top on that & have it set to share 64MB, that would bring the total down to 64MB. But that's just a wildazz guess

ASUS A7N8X-X
Athlon XP 1800+
8.5 x 200MHz
1024MB PC3200 2.5-3-3-7
Asus A9550GE/TD 128MB
WinME/WinXP Pro SP2


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Response Number 2
Name: Free Weasel
Date: October 27, 2005 at 03:27:05 Pacific
Reply:

Jam is surely right about the density
problem. I guess on a 750MHz system you're
running SD Ram and there this is a quite
usual problem.
Some time ago they invented a new way of
producing new SD Ram but the problem was
that older boards might have problems with
that new ram. Either they didn't recognise
it at all or just every second bit
effectivly halving the Ram size the system
is able to see and to access.

Are you sure you ever had it running with
256MB showing because in that case it's
likely to be something else.
Did you install an older bios lately. It's
unlikely but possible to affect the
recognized ram in that case too I think.

The step from 128MB to 64MB is either a
shared memory graphic ram set to 64MB or
your running double sided ram (a ram stick
with ram chips on both sides) on a ram slot
that's only able to access single sided
ram. That way only half of the ram will be
accessable.
Combined with the above high density
problem that may effectively quarter your
ram size!

Check the manual of your mainboard because
on that older SD Ram board it was possible
that one or more ram slots had been single
sided only!
If you have onboard graphic also check the
bios about the size of the allocated ram to
the graphic card. That part of ram will no
longer show up in the rest of the system!


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