I'm having trouble getting 32-bit Vista to recognize all of the RAM in my
Shuttle SD37P2 "Conroe" system:

A clean install of 32-bit Vista RC1 (build 5600) only recognizes 2GB of RAM
on a 4GB Shuttle "SD37P2" system.

A clean install of 64-bit Vista RC1 (build 5600) on the same iron recognizes
the entire 4GB of RAM.

The Shuttle SD37P2 has the latest available BIOS SD37S022, dated 2006/07/06,
an Intel Core-2-Duo E6700 processor, and 4GB of ECC DDR2 RAM (as 4 sticks of
1GB each) The BIOS recognizes all 4GB of RAM in dual-channel mode and
displays the correct RAM size in SETUP.

The Shuttle BIOS has a setting for a "memory-hole" - which does NOT affect
the amount of RAM seen by 32-bit Vista - setting it to "enabled" or
"disabled" seems to have no effect on the result.

I would rather run the 32-bit version at least for the near term as most of
my 3rd-party software won't run on 64-bit.

Any suggestions or ideas welcome! 8-)

We're all having the same problem with memory over 3GB. Il seems that with
32-bit vista, we can only see and use up to 3325MB, and that the 64-bit Vista
sees the full 4GB, but with 64-bit Vista, there are no drivers available.
Would someone from Microsoft confirm that 32-bit Vista is limited to 3325MB
(pretty much like WinXP), so we don't waste our time trying and commenting?

Thanks,
--
Francois


"Gator" wrote:

I'm having trouble getting 32-bit Vista to recognize all of the RAM in my
Shuttle SD37P2 "Conroe" system:

A clean install of 32-bit Vista RC1 (build 5600) only recognizes 2GB of RAM
on a 4GB Shuttle "SD37P2" system.

A clean install of 64-bit Vista RC1 (build 5600) on the same iron recognizes
the entire 4GB of RAM.

The Shuttle SD37P2 has the latest available BIOS SD37S022, dated 2006/07/06,
an Intel Core-2-Duo E6700 processor, and 4GB of ECC DDR2 RAM (as 4 sticks of
1GB each) The BIOS recognizes all 4GB of RAM in dual-channel mode and
displays the correct RAM size in SETUP.

The Shuttle BIOS has a setting for a "memory-hole" - which does NOT affect
the amount of RAM seen by 32-bit Vista - setting it to "enabled" or
"disabled" seems to have no effect on the result.

I would rather run the 32-bit version at least for the near term as most of
my 3rd-party software won't run on 64-bit.

Any suggestions or ideas welcome! 8-)

Every 32 bit version of Windows has this problem. It's not a Windows
problem. It's a limit of a 32 bit CPU. There is only 4 GB of memory that can
be directly addressed by the CPU. Peripherals need an address that maps into
the 4 GB space so the motherboard reserves some of the space for it's own
use in addressing these peripherals. Some very fancy motherboards use tricks
to map this up above 4 GB but it's very rare, mostly found on older server
boards from before 64 bit CPUs existed. Go into the Device Manager - View -
Resources by type. Expand the Memory branch. All that is memory addresses
used by the motherboard and peripherals.

--
Kerry Brown
Microsoft MVP - Shell/User
http://www.vistahelp.ca


"fg13" wrote in message
...
We're all having the same problem with memory over 3GB. Il seems that with
32-bit vista, we can only see and use up to 3325MB, and that the 64-bit
Vista
sees the full 4GB, but with 64-bit Vista, there are no drivers available.
Would someone from Microsoft confirm that 32-bit Vista is limited to
3325MB
(pretty much like WinXP), so we don't waste our time trying and
commenting?

Thanks,
--
Francois


"Gator" wrote:

I'm having trouble getting 32-bit Vista to recognize all of the RAM in my
Shuttle SD37P2 "Conroe" system:

A clean install of 32-bit Vista RC1 (build 5600) only recognizes 2GB of
RAM
on a 4GB Shuttle "SD37P2" system.

A clean install of 64-bit Vista RC1 (build 5600) on the same iron
recognizes
the entire 4GB of RAM.

The Shuttle SD37P2 has the latest available BIOS SD37S022, dated
2006/07/06,
an Intel Core-2-Duo E6700 processor, and 4GB of ECC DDR2 RAM (as 4 sticks
of
1GB each) The BIOS recognizes all 4GB of RAM in dual-channel mode and
displays the correct RAM size in SETUP.

The Shuttle BIOS has a setting for a "memory-hole" - which does NOT
affect
the amount of RAM seen by 32-bit Vista - setting it to "enabled" or
"disabled" seems to have no effect on the result.

I would rather run the 32-bit version at least for the near term as most
of
my 3rd-party software won't run on 64-bit.

Any suggestions or ideas welcome! 8-)

Kerry,

Thanks for your quick response. I agree and I think I understand what you
are saying, namely that the 32-bit version of OS (Vista or WinXP) consider a
32 bit CPU regardless of the real hardware, because I have an Intel
Core-2-Duo E6600, and a compatible Intel mother board that do not have this
limitation.
Am I correct in saying that?

Thanks,
--
Francois


"Kerry Brown" wrote:

Every 32 bit version of Windows has this problem. It's not a Windows
problem. It's a limit of a 32 bit CPU. There is only 4 GB of memory that can
be directly addressed by the CPU. Peripherals need an address that maps into
the 4 GB space so the motherboard reserves some of the space for it's own
use in addressing these peripherals. Some very fancy motherboards use tricks
to map this up above 4 GB but it's very rare, mostly found on older server
boards from before 64 bit CPUs existed. Go into the Device Manager - View -
Resources by type. Expand the Memory branch. All that is memory addresses
used by the motherboard and peripherals.

--
Kerry Brown
Microsoft MVP - Shell/User
http://www.vistahelp.ca


"fg13" wrote in message
...
We're all having the same problem with memory over 3GB. Il seems that with
32-bit vista, we can only see and use up to 3325MB, and that the 64-bit
Vista
sees the full 4GB, but with 64-bit Vista, there are no drivers available.
Would someone from Microsoft confirm that 32-bit Vista is limited to
3325MB
(pretty much like WinXP), so we don't waste our time trying and
commenting?

Thanks,
--
Francois


"Gator" wrote:

I'm having trouble getting 32-bit Vista to recognize all of the RAM in my
Shuttle SD37P2 "Conroe" system:

A clean install of 32-bit Vista RC1 (build 5600) only recognizes 2GB of
RAM
on a 4GB Shuttle "SD37P2" system.

A clean install of 64-bit Vista RC1 (build 5600) on the same iron
recognizes
the entire 4GB of RAM.

The Shuttle SD37P2 has the latest available BIOS SD37S022, dated
2006/07/06,
an Intel Core-2-Duo E6700 processor, and 4GB of ECC DDR2 RAM (as 4 sticks
of
1GB each) The BIOS recognizes all 4GB of RAM in dual-channel mode and
displays the correct RAM size in SETUP.

The Shuttle BIOS has a setting for a "memory-hole" - which does NOT
affect
the amount of RAM seen by 32-bit Vista - setting it to "enabled" or
"disabled" seems to have no effect on the result.

I would rather run the 32-bit version at least for the near term as most
of
my 3rd-party software won't run on 64-bit.

Any suggestions or ideas welcome! 8-)

Correct. It is a simple arithmetic problem of how many addresses there are
with 32bit operating systems. Running a 64bit OS on the same hardware gives
you far more addresses mathematically. Vista x64 business editions and up
address 128GB directly.

"fg13" wrote in message
...
Kerry,

Thanks for your quick response. I agree and I think I understand what you
are saying, namely that the 32-bit version of OS (Vista or WinXP) consider
a
32 bit CPU regardless of the real hardware, because I have an Intel
Core-2-Duo E6600, and a compatible Intel mother board that do not have
this
limitation.
Am I correct in saying that?

Thanks,
--
Francois


"Kerry Brown" wrote:

Every 32 bit version of Windows has this problem. It's not a Windows
problem. It's a limit of a 32 bit CPU. There is only 4 GB of memory that
can
be directly addressed by the CPU. Peripherals need an address that maps
into
the 4 GB space so the motherboard reserves some of the space for it's
own
use in addressing these peripherals. Some very fancy motherboards use
tricks
to map this up above 4 GB but it's very rare, mostly found on older
server
boards from before 64 bit CPUs existed. Go into the Device Manager -
View -
Resources by type. Expand the Memory branch. All that is memory addresses
used by the motherboard and peripherals.

--
Kerry Brown
Microsoft MVP - Shell/User
http://www.vistahelp.ca


"fg13" wrote in message
...
We're all having the same problem with memory over 3GB. Il seems that
with
32-bit vista, we can only see and use up to 3325MB, and that the 64-bit
Vista
sees the full 4GB, but with 64-bit Vista, there are no drivers
available.
Would someone from Microsoft confirm that 32-bit Vista is limited to
3325MB
(pretty much like WinXP), so we don't waste our time trying and
commenting?

Thanks,
--
Francois


"Gator" wrote:

I'm having trouble getting 32-bit Vista to recognize all of the RAM in
my
Shuttle SD37P2 "Conroe" system:

A clean install of 32-bit Vista RC1 (build 5600) only recognizes 2GB
of
RAM
on a 4GB Shuttle "SD37P2" system.

A clean install of 64-bit Vista RC1 (build 5600) on the same iron
recognizes
the entire 4GB of RAM.

The Shuttle SD37P2 has the latest available BIOS SD37S022, dated
2006/07/06,
an Intel Core-2-Duo E6700 processor, and 4GB of ECC DDR2 RAM (as 4
sticks
of
1GB each) The BIOS recognizes all 4GB of RAM in dual-channel mode
and
displays the correct RAM size in SETUP.

The Shuttle BIOS has a setting for a "memory-hole" - which does NOT
affect
the amount of RAM seen by 32-bit Vista - setting it to "enabled" or
"disabled" seems to have no effect on the result.

I would rather run the 32-bit version at least for the near term as
most
of
my 3rd-party software won't run on 64-bit.

Any suggestions or ideas welcome! 8-)