Centrino Duo and 8.04 64bit

[Nico0020]

In an attempt to finally switch over to 64bit I put in the live AMD 64 CD. When I try to check the disk, install, or just go to the live part of the CD it tells me I need a different kernel as it only sees i686. I have a Intel Centrino Duo. Anyone have any idea why?

[renim]

Centrino Duo is the name for the platform, not the cpu. If the CD is giving you that message then you have a Core Duo based on the Yonah core which only capable of supporting 32bit software. In order to run 64bit software you'll need atleast a Core 2 Duo or newer processor which are capable of supporting both 32/64bit software.

If you still have Windows installed on the system, then check under system properties menu or you can use a utility like CPU-Z(http://www.cpuid.com/cpuz.php which will let you know some of the basic information on the cpu/motherboard etc..

[Nico0020]

Here is the information I obtained from the program. So I can't ever use the 64bit version of Ubuntu? So what exactly is the purpose of me having two seperate 32 bit CPUS's if I cannot run a 64bit Operating system.

Processors Information
------------------------------------------------------------------------------------

Processor 1 (ID = 0)
Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Core Duo T2300E
Codename Yonah
Specification Genuine Intel(R) CPU T2300 @ 1.66GHz
Package Socket 479 mPGA (platform ID = 5h)
CPUID 6.E.8
Extended CPUID 6.E
Core Stepping C0
Technology 65 nm
Core Speed 1664.6 MHz (10.0 x 166.5 MHz)
Rated Bus speed 665.8 MHz
Stock frequency 1666 MHz
Instructions sets MMX, SSE, SSE2, SSE3
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2048 KBytes, 8-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 10.0x
max VID 1.263 V
Features XD

[Nico0020]

Here is the information I obtained from the program. So I can't ever use the 64bit version of Ubuntu? So what exactly is the purpose of me having two seperate 32 bit CPUS's if I cannot run a 64bit Operating system.

Processors Information
------------------------------------------------------------------------------------

Processor 1 (ID = 0)
Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Core Duo T2300E
Codename Yonah
Specification Genuine Intel(R) CPU T2300 @ 1.66GHz
Package Socket 479 mPGA (platform ID = 5h)
CPUID 6.E.8
Extended CPUID 6.E
Core Stepping C0
Technology 65 nm
Core Speed 1664.6 MHz (10.0 x 166.5 MHz)
Rated Bus speed 665.8 MHz
Stock frequency 1666 MHz
Instructions sets MMX, SSE, SSE2, SSE3
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2048 KBytes, 8-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 10.0x
max VID 1.263 V
Features XD

[jespdj]

Here is the information I obtained from the program. So I can't ever use the 64bit version of Ubuntu? So what exactly is the purpose of me having two seperate 32 bit CPUS's if I cannot run a 64bit Operating system.
Your processor is an Intel Core Duo (not Core 2 Duo), which does not support 64-bit mode. So no, there is no way you can ever run 64-bit Ubuntu on that processor.

The Core Duo is a 32-bit dual-core processor. Note that the fact that it's dual-core does not have anything to do with 32-bit or 64-bit. It's not "2 x 32 = 64 bit".

[Nico0020]

thanks for teh info. So what is the purpose of having a dual core CPU then?

[Patsoe]

Very briefly: a dual core can do two tasks at the same time. A 64bit core can eat numbers that are twice as long (in bits) as those a 32bit core can handle.

[Joeb454]

I'm not sure whether Centrino Duo's are 64 bit capable. I do know that the Celeron D in my Desktop supports Intel's 64 bit system, though I've yet to try installing a 64 bit OS on it :)