Vista 64 and 4 GB Of RAM

Swordfish · 26 Feb 2009 at 15:37

Hi Guys

I am new to Vista and 64 Bit OS's so be gentle.

I have recently got my new system that is Running Vista Ultimate 64 with 4 GB of RAM. Now the BIOS shows during POST that 3.5 GB is available with 4.0 GB installed.

System properties shows 4.0 GB installed yet Task Manager shows on 3.5 of Physical Memory. Any ideas?

Cheers

reflux · 26 Feb 2009 at 15:39

You running integrated video with shared memory?

madman045 · 26 Feb 2009 at 15:40

You might need to enable something called a memory hole remap in the bios, this will allow the motherboard to address all 4GB and then show all 4gb in windows

Swordfish · 26 Feb 2009 at 15:42

No - Mobo does not have OB GFX

Mobo is ASUS P5KPL/1600 with GeForce 9500GT Gfx

RAM is 2 x2 GB Geil 800

Swordfish · 26 Feb 2009 at 15:43

madman045 said:
You might need to enable something called a memory hole remap in the bios, this will allow the motherboard to address all 4GB and then show all 4gb in windows

Will look into this.

Swordfish · 26 Feb 2009 at 15:55

Swordfish said:
Will look into this.

Nothing in manual regarding this.

Happy · 26 Feb 2009 at 16:03

Would the 9500GT have turbocache or whatever Nvidia call it?

Fanatic · 26 Feb 2009 at 16:24

If this is the Micro ATX board using the Intel G31 chipset then it doesn't support more than 4GB of address space. So you will only see 3.5GB as the rest is used for PCI stuff etc.

So Google tells me

Burnsy2023 · 26 Feb 2009 at 16:42

Fanatic said:
If this is the Micro ATX board using the Intel G31 chipset then it doesn't support more than 4GB of address space. So you will only see 3.5GB as the rest is used for PCI stuff etc.

So Google tells me

This is most likely what the problem is

Swordfish · 26 Feb 2009 at 18:04

Aye it is the G32 Chipset

Bit of a bummer - should have researched my mobo more

Oh well live and learn.

Will save the pennies again for new one in a while.

Cheers for replies

cuke2u · 26 Feb 2009 at 21:28

Hi, according to the manual I've just been reading there is a memory remap feature in the northbridge configuration section of the bios. Set it to enabled...
Chris

CurlyWhirly · 26 Feb 2009 at 22:59

Swordfish said:
Aye it is the G32 Chipset

Bit of a bummer - should have researched my mobo more

Oh well live and learn.

I have the same problem and I should also have researched my mobo more as well

I started my own thread about it a while ago here

Swordfish · 27 Feb 2009 at 22:28

chriscatt said:
Hi, according to the manual I've just been reading there is a memory remap feature in the northbridge configuration section of the bios. Set it to enabled...
Chris

This worked cheers - will it be detremental to my system do you think ?

snowdog · 27 Feb 2009 at 22:36

No it's simply something you need to do, I need memory remap on my p5b deluxe too but my board supports up to 8gb. Still need it to see more than 3.2 gb tho.

Swordfish · 27 Feb 2009 at 23:20

snowdog said:
No it's simply something you need to do, I need memory remap on my p5b deluxe too but my board supports up to 8gb. Still need it to see more than 3.2 gb tho.

Cheers, board only supports up to 4GB so thats my limit, but it's enough for me.

RobH · 28 Feb 2009 at 00:26

Slightly OT but is there any advantage of going with 2x2GB sticks vs 4x1GB sticks?

yantorsen · 28 Feb 2009 at 00:45

RobH said:
Slightly OT but is there any advantage of going with 2x2GB sticks vs 4x1GB sticks?

no, only difference used to be that 4x1 was easier to overclock. probably the other way around though these days.