RAM in A8N-SLI 4GB shows 3GB

  • Thread starter Thread starter mogur2
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mogur2

Hi,
I have just installed 2 more 1GB DIMMs (Kingston) into my system. Boot shows 4 GB, but
Cool Beans, Sandra Lite, & Belarc show only 3GB

Belarc report;
3072 Megabytes Installed Memory

Slot 'A0' has 1024 MB
Slot 'A1' has 1024 MB
Slot 'A2' has 1024 MB
Slot 'A3' has 1024 MB

Did I waste money on the extra 2 1GB DIMMS. Why does XP Pro only show 3GB?

Thanks;
 
Hi,
I have just installed 2 more 1GB DIMMs (Kingston) into my system. Boot shows 4 GB, but
Cool Beans, Sandra Lite, & Belarc show only 3GB

Belarc report;
3072 Megabytes Installed Memory

Slot 'A0' has 1024 MB
Slot 'A1' has 1024 MB
Slot 'A2' has 1024 MB
Slot 'A3' has 1024 MB

Did I waste money on the extra 2 1GB DIMMS. Why does XP Pro only show 3GB?
Click to expand...


Look in the manual 2.4.2 :System memory:
"Due to chipset resource allocation, the system may detect less than 4
Gb of system memory when you installed four 1Gb DDR memory modules"
 
mogur2 said:
Hi,
I have just installed 2 more 1GB DIMMs (Kingston) into my system. Boot shows 4 GB, but
Cool Beans, Sandra Lite, & Belarc show only 3GB

Belarc report;
3072 Megabytes Installed Memory

Slot 'A0' has 1024 MB
Slot 'A1' has 1024 MB
Slot 'A2' has 1024 MB
Slot 'A3' has 1024 MB

Did I waste money on the extra 2 1GB DIMMS. Why does XP Pro only show 3GB?

Thanks;
Click to expand...

There's a memory remapping option in the BIOS setup (at least in the
current BIOS) to remap some PCI resources to above 4GB, you can try
turning that on. However you may still not be able to get above 4GB with
regular Windows XP..
 
mogur2 said:
Hi,
I have just installed 2 more 1GB DIMMs (Kingston) into my system. Boot shows 4 GB, but
Cool Beans, Sandra Lite, & Belarc show only 3GB

Belarc report;
3072 Megabytes Installed Memory

Slot 'A0' has 1024 MB
Slot 'A1' has 1024 MB
Slot 'A2' has 1024 MB
Slot 'A3' has 1024 MB

Did I waste money on the extra 2 1GB DIMMS. Why does XP Pro only show 3GB?

Thanks;
Click to expand...

You need to install single-sided modules into the last two slots.

The design of the soutbridge chipset steals some of the memory, but the
rest is down to an issue with Windows XP not liking more than 3 GB.

You could try XP 64-bit or, I have heard, Server 2003 does a pretty good
job. I'm trying that out tomorrow. (Better driver support with 2003
than XP 64 otherwise I would choose the latter.)

I've been through the same problem the last week - having to get a
server board with dual CPUs, but then I need 8GB of memory and possibly
a lot more.


Odie
 
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