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Xeon memory addressing greater then 4gb

Last response: in CPUs
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January 25, 2009 6:13:22 PM

Greetings,

I've acquried a Gateway 955 1u server with dual Xeon 3.06 / 533 socket 604 processors.
The manual states the maximum memory for the server is 12gb.
When I run the Intel CPU ID utility it shows the cpu's as "NOT" having Intel 64bit Architecture.

If the cpu is not 64 bit how can it address 12gb??

Thanks in advance,

pt
January 25, 2009 6:18:43 PM

PAE - (36 bit mode)
January 25, 2009 6:20:12 PM

if any cpu is a dual core, quad core or maybe single but with hyper threading it should be 64bit. you say acquired, as in just bought new or its an old system. i thought all xeons were 64bit
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January 25, 2009 6:23:09 PM

firefoxx04 said:
if any cpu is a dual core, quad core or maybe single but with hyper threading it should be 64bit. you say acquired, as in just bought new or its an old system. i thought all xeons were 64bit


Only recent Xeons are 64bit...

But ALL Xeons support PAE (Google it)
January 25, 2009 6:29:01 PM

jamesgoddard said:
Only recent Xeons are 64bit...

But ALL Xeons support PAE (Google it)


thats why i asked him if it was a new system, (he said aquired, could be old) but if he just baught it then it should be 64bit. for PAE ya, so the 12GB is supported. but a 54bit OS is needed
!