Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

T60/T61 series specific matters only
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karotlopj
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Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

#1 Post by karotlopj » Sun Aug 13, 2017 12:23 am

How can I tell which T6*s support long mode? I have a T61 which does and a T60 which doesn't.

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axur-delmeria
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Re: Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

#2 Post by axur-delmeria » Sun Aug 13, 2017 12:38 am

Let me guess, your T60 has a Core Duo processor.

Long mode is exclusive to x86-64 processors like the Core 2 Duo. https://en.wikipedia.org/wiki/Long_mode

This means you only need to upgrade the processor. T60's use Socket M CPUs like the Core 2 Duo T5600, T7200, T7400, and T7600.
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karotlopj
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Re: Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

#3 Post by karotlopj » Sun Aug 13, 2017 5:31 am

axur-delmeria wrote:
Sun Aug 13, 2017 12:38 am
Let me guess, your T60 has a Core Duo processor.
According to HDT it's a Genuine Intel(R) CPU T2300 @ 1.66G
X86_64 : No
Long mode is exclusive to x86-64 processors like the Core 2 Duo. https://en.wikipedia.org/wiki/Long_mode

This means you only need to upgrade the processor. T60's use Socket M CPUs like the Core 2 Duo T5600, T7200, T7400, and T7600.
Would this one be OK?

http://www.ebay.co.uk/itm/NEW-INTEL-COR ... 0005.m1851

axur-delmeria
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Re: Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

#4 Post by axur-delmeria » Sun Aug 13, 2017 7:14 am

According to HDT it's a Genuine Intel(R) CPU T2300 @ 1.66G
That's a Core Duo alright. https://ark.intel.com/products/27233/In ... 67-MHz-FSB
Yeah, that one will work.
Daily driver: X220 4291-P79 i5-2520M

In reserve: X61 T7500, X60 T2300
In pieces: X60s CS U1300 [board only], two retired but working X61Ts
RIP: 760XD 9546-U9E

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Re: Which T6x-models support "Long Mode" (where a 64-bit OS can access 64-bit instructions)?

#5 Post by ajkula66 » Sun Aug 13, 2017 10:39 am

Just make sure to update the BIOS to the latest one - which is 2.27 I believe - before you swap the CPU. Older BIOS versions may or may not support the Core 2 Duo CPU and the machine would boot to a blank screen in this set of circumstances.

Happy upgrading.
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