Memory help please

[Dale Rollands]

I have 3 256meg Ram chips , they all work, and I have 3 slots, which all
work, tested them all.
I had 512Meg and got another chip at 256Meg, I added it ...
BUT my computer only sees 512m of Ram , reguardless of what order I put
the Ram chips in..
Why can't my computer see the extra 256m of ram??
I am using windows XP home
Please help
thank you

 

[Troy]

maybe your motherboard only supports 512 total... even with three banks of
ram.... wouldn't think so

 

[Dale Rollands]

my mother board is:
Ga-81RXP
intel 845 agp set P4 titan series
Does it support more then 512 meg??
thank you
*********************************

 

[Michael Solomon \(MS-MVP Windows Shell/User\)]

Check the Intel site or your motherboard manual for that information.

 

[Qubix]

Go here for info on motherboards
http://www.motherboards.org/manuals/p/Gigabyte-GA-8IRXP/4150.html

 

[Ron Martell]

I have 3 256meg Ram chips , they all work, and I have 3 slots, which all
work, tested them all.
I had 512Meg and got another chip at 256Meg, I added it ...
BUT my computer only sees 512m of Ram , reguardless of what order I put
the Ram chips in..
Why can't my computer see the extra 256m of ram??
I am using windows XP home
Please help
thank you

Where are you seeing this information about only 512 mb of RAM? The
System Information utility in Windows XP is known to report incorrect
RAM amounts under some circumstances.

Right-click on My Computer and select Properties. At the bottom of
the Window it will show a figure for the amount of RAM detected by
Windows. If that says 768 mb then all is well and there is no need to
be concerned.

However if that also says 512 mb then there is a problem of some kind.

Watch the opening screens when the computer first starts up and see
what is reported by the system BIOS for RAM. You may have to go into
the BIOS setup to see this. If that says 768 mb then the hardware is
detecting all of the RAM. But if it says only 512 mb then there is a
hardware related issue and you need to consult the motherboard
manufacturer about this.

Assuming that the BIOS detects 768 mb and My Computer - Properties
only reports 512 mb the next step is to use Start - Run - MSCONFIG
Go to the BOOT.INI tab and click on the Advanced Options button. Make
certain that the checkbox for the /MAXMEM= line is clear and there is
no value in the data box for that line.

Good luck


Ron Martell Duncan B.C. Canada
--
Microsoft MVP
On-Line Help Computer Service
http://onlinehelp.bc.ca

"The reason computer chips are so small is computers don't eat much."

 

[Sharon F]

my mother board is:
Ga-81RXP
intel 845 agp set P4 titan series
Does it support more then 512 meg??
thank you

Dale, I downloaded the manuals for your motherboard last night from the
Gigabyte site. Page 10 explains installing RAM modules. There are some
caveats with this board. It has 3 RAM slots but only slot is dual channel.
Slots 2 and 3 are single. If you are going to use 2 DDR modules, one goes
into the DIMM1. The other into DIMM 2 or 3. One slot must remain empty to
make both channels available when working with slot 2 or 3.

The manual also says that you can mix dual and single channel modules but
in "real life" that practice usually doesn't work out very well.

 

[Qubix]

I have 3 256meg Ram chips , they all work, and I have 3 slots, which all
work, tested them all.
I had 512Meg and got another chip at 256Meg, I added it ...
BUT my computer only sees 512m of Ram , reguardless of what order I put
the Ram chips in..
Why can't my computer see the extra 256m of ram??
I am using windows XP home
Please help
thank you

 

[Jim Macklin]

Read your mobo manual for the answer.


--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.


|
| | > I have 3 256meg Ram chips , they all work, and I have 3
slots, which all
| > work, tested them all.
| > I had 512Meg and got another chip at 256Meg, I added
it ...
| > BUT my computer only sees 512m of Ram , reguardless of
what order I put
| > the Ram chips in..
| > Why can't my computer see the extra 256m of ram??
| > I am using windows XP home
| > Please help
| > thank you
| >
| >
| >
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