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64-bit, how to determine?

Posted: Mon Dec 31, 2012 5:06 pm
by yonnie
How do you know when looking at a cpu number if it's going to run 64-bit software? I have an old Dell with an Intell dual-core hyper-threading cpu installed and it won't run 64-bit software. Is there another parameter I need to look for when buying new chips?

I thought that the HT was the key, could it be the MOBO?

Re: 64-bit, how to determine?

Posted: Mon Dec 31, 2012 6:26 pm
by eanfrid
It is only a matter of cpu architecture. Check Wikipedia about your cpu, for example.

Re: 64-bit, how to determine?

Posted: Mon Dec 31, 2012 11:37 pm
by mank_in

Re: 64-bit, how to determine?

Posted: Tue Jan 01, 2013 4:23 pm
by homerscousin
I think I can safely say this: Almost all Intel multi-core cpu's are 64 bit. It might be the mobo. Post some specifics.

Re: 64-bit, how to determine? [SOLVED]

Posted: Wed Jan 02, 2013 6:59 pm
by yonnie
The ubuntu link was worthless. The intell wiki was slightly more helpful but not really. Apparently there is a huge plethora of pentium 4 chips out there and no clear means of determining which does what in terms a non-intell employee would recognize.

I have a computer pentium 4 dual core with HT in one system that runs 64-bit no problem. I have one another with a pentium 4 dual core with HT in another that won't run 64 bit. The only way I can determine which will run 64 in advance is to take the computer apart, remove the heat sink, read the number, look it up? That's stupid!

I found an easier way, just stick a live thumb-drive with 64-bit LM on it. If it says it needs a 64bit cpu and won't boot, then I need to investigate what cpu can be used to make it so.

Re: 64-bit, how to determine?

Posted: Wed Jan 02, 2013 8:00 pm
by zerozero
actually the UB link was on the right track

Code: Select all

grep lm /proc/cpuinfo
(if you see lm outputed in red is 64bit)
or

Code: Select all

grep flags /proc/cpuinfo
(look for lm)

additional info >> http://www.cyberciti.biz/faq/linux-how- ... it-or-not/