I am fully aware of that I just failed to mention that you have to go into
the BIOS to make changes required for all memory to run at the slower speed.
"dennis" wrote in message
...
Curious wrote:

One difference between memory support in memory support in XP and in
Vista is that when Vista boots it will test the speed of all the memory
to insure that it is all running at the same speed. If it is not then it
only recognizes the slower memory.

That is a job for the BIOS. It programs the memory controller, not the OS.

Curious wrote:
I am fully aware of that I just failed to mention that you have to go
into the BIOS to make changes required for all memory to run at the
slower speed.

It all runs at the same speed. You cannot have modules running at
different speeds at the same time. The default timing will be the
slowest one.

It's just a matter of reading. I mentioned 64-bit Vista Ultimate SP 1 and XP
Pro SP2 64-bit.

All my DIMMS are the exact same make and model.

They are exactly what is specified on page 2-15 of the motherboard manual.

"Curious" wrote:

Colin is the guru of 8GB memory support and addressing in this and several
other newsgroups.
He assumed that when you mentioned XP that you did not mean the 64bit
version of XP.
All versions of Vista can run 64 bit vista and can support more the 4GB of
memory. The 32bit versions can not support more the 4GB for any one process
however.
One difference between memory support in memory support in XP and in Vista
is that when Vista boots it will test the speed of all the memory to insure
that it is all running at the same speed. If it is not then it only
recognizes the slower memory.

I recommend you explore the discussions on the forum at
http://vip.asus.com/forum/topic.aspx...Language=en-us
and in particular,
http://vip.asus.com/forum/view.aspx?...Language=en-us
and if you have not already, engage the other users posting in the
motherboard forums. Vista is the OS involved but probably does not contain
the solution. The issue is at heart hardware.

Best wishes in your search.

"MrKit" wrote in message
...
It's just a matter of reading. I mentioned 64-bit Vista Ultimate SP 1 and
XP
Pro SP2 64-bit.

All my DIMMS are the exact same make and model.

They are exactly what is specified on page 2-15 of the motherboard manual.

"Curious" wrote:

Colin is the guru of 8GB memory support and addressing in this and
several
other newsgroups.
He assumed that when you mentioned XP that you did not mean the 64bit
version of XP.
All versions of Vista can run 64 bit vista and can support more the 4GB
of
memory. The 32bit versions can not support more the 4GB for any one
process
however.
One difference between memory support in memory support in XP and in
Vista
is that when Vista boots it will test the speed of all the memory to
insure
that it is all running at the same speed. If it is not then it only
recognizes the slower memory.

This is why I hate forums as a poor alternative to companies that want to
overcharge us and then provide no tech support, limited tech support or paid
tech support. I spent hours and hours reading and writing and proofing
messages for almost a week, just to find out that it was all wasted time.
It's not your fault. It's the fault of the companies like Microsoft who sold
me XP Pro 64-bit and then Vista Ultimate 64-bit and yet will not help me
anymore. I will have to decide whether I am interested in doing more of this
forum stuff elsewhere.

It just seems to me that since the BIOS accepts, sees and uses ALL the
memory and Vista cannot even boot with it, then if it is a hardware issue, it
would pertain to how the software interacts with it. In other words, Vista
needs to work with the hardware, especially mainstream hardware that was in
testing the same time Vista was. This is not antiquated hardware nobody uses
anymore.

"Colin Barnhorst" wrote:

I recommend you explore the discussions on the forum at
http://vip.asus.com/forum/topic.aspx...Language=en-us
and in particular,
http://vip.asus.com/forum/view.aspx?...Language=en-us
and if you have not already, engage the other users posting in the
motherboard forums. Vista is the OS involved but probably does not contain
the solution. The issue is at heart hardware.

Best wishes in your search.