<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
		>
<channel>
	<title>Comments on: How to tell if your Mac is 64 bit</title>
	<atom:link href="http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/feed/" rel="self" type="application/rss+xml" />
	<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/</link>
	<description>News, tips, software, reviews, and more for Mac OS X, iPhone, iPad</description>
	<lastBuildDate>Sat, 25 May 2013 09:32:51 +0000</lastBuildDate>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.2</generator>
	<item>
		<title>By: Sypou</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-235881</link>
		<dc:creator>Sypou</dc:creator>
		<pubDate>Mon, 12 Sep 2011 06:37:34 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-235881</guid>
		<description>Hi all,

So in your opinion, If I have:
Intel Core 2 Duo (meaning 64bit) and 
uname -a (i386)

what package should I install, package for 32 or for 64?)

Thanks,

Sypou</description>
		<content:encoded><![CDATA[<p>Hi all,</p>
<p>So in your opinion, If I have:<br />
Intel Core 2 Duo (meaning 64bit) and<br />
uname -a (i386)</p>
<p>what package should I install, package for 32 or for 64?)</p>
<p>Thanks,</p>
<p>Sypou</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Bali driver</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-156600</link>
		<dc:creator>Bali driver</dc:creator>
		<pubDate>Wed, 05 Jan 2011 07:09:09 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-156600</guid>
		<description>I did what richardun said, and what does this mean?
/RELEASE_I386 i386
Do I have 64-bit kerner and can install 64-bit software?

Thank you</description>
		<content:encoded><![CDATA[<p>I did what richardun said, and what does this mean?<br />
/RELEASE_I386 i386<br />
Do I have 64-bit kerner and can install 64-bit software?</p>
<p>Thank you</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: richardun</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-147600</link>
		<dc:creator>richardun</dc:creator>
		<pubDate>Thu, 16 Dec 2010 16:19:00 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-147600</guid>
		<description>This means your proc is a 64-bit architecture proc, but that doesn&#039;t mean you can install 64-bit software on your machine, it&#039;s about the kernel.  

In your terminal, enter this:  (:; is the prompt)

:;  uname -a

See a i386 on the end?  Your kernel is 32-bit... if you see x86_64 then you&#039;re running a 64-bit kernel.</description>
		<content:encoded><![CDATA[<p>This means your proc is a 64-bit architecture proc, but that doesn&#8217;t mean you can install 64-bit software on your machine, it&#8217;s about the kernel.  </p>
<p>In your terminal, enter this:  (:; is the prompt)</p>
<p>:;  uname -a</p>
<p>See a i386 on the end?  Your kernel is 32-bit&#8230; if you see x86_64 then you&#8217;re running a 64-bit kernel.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Randall Smock</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-100499</link>
		<dc:creator>Randall Smock</dc:creator>
		<pubDate>Tue, 06 Apr 2010 23:23:21 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-100499</guid>
		<description>But to go a littler further with this; even though your Mac might have a CPU that is capable, it might not be able to natively boot 64 bit.

Currently Apple has black listed any 64 bit capable machine that has a 32 bit EFI,
you could technically boot into a 64 bit kernel, but it would not be able to use NVRAM
from the EFI/Bios that called it, this might present some problems.

Apple has also (as noted up above) artificially blocked out some machines that could do
this but aren&#039;t &#039;pro&#039; enough to allow it (i.e. unibody macbooks, displayport minis)

from CLI/Terminal issue a uname -a if you get something that ends with I386 your in 32 bit mode, if you get K64 your in 64 bit mode, the implications are not as big as you would think and in some cases 32bit kernel is what you want anyhow as  a lot of third party drivers will not work in 64 bit mode, load up the process monitor and look, if you have a Core 2 duo or above you will/should see 32 bit mode, 64 bit mode and Universal code running all at the same time.  If your machine is *capable* of booting 64 bit but does not by default and you want to, you can hold down the 6 and 4 keys on a cold start up to see if that does the trick, conversely you can hold down the 3 and 2 keys to boot 32 bit mode for the above mentioned driver issues.

Randall</description>
		<content:encoded><![CDATA[<p>But to go a littler further with this; even though your Mac might have a CPU that is capable, it might not be able to natively boot 64 bit.</p>
<p>Currently Apple has black listed any 64 bit capable machine that has a 32 bit EFI,<br />
you could technically boot into a 64 bit kernel, but it would not be able to use NVRAM<br />
from the EFI/Bios that called it, this might present some problems.</p>
<p>Apple has also (as noted up above) artificially blocked out some machines that could do<br />
this but aren&#8217;t &#8216;pro&#8217; enough to allow it (i.e. unibody macbooks, displayport minis)</p>
<p>from CLI/Terminal issue a uname -a if you get something that ends with I386 your in 32 bit mode, if you get K64 your in 64 bit mode, the implications are not as big as you would think and in some cases 32bit kernel is what you want anyhow as  a lot of third party drivers will not work in 64 bit mode, load up the process monitor and look, if you have a Core 2 duo or above you will/should see 32 bit mode, 64 bit mode and Universal code running all at the same time.  If your machine is *capable* of booting 64 bit but does not by default and you want to, you can hold down the 6 and 4 keys on a cold start up to see if that does the trick, conversely you can hold down the 3 and 2 keys to boot 32 bit mode for the above mentioned driver issues.</p>
<p>Randall</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Chris</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-99793</link>
		<dc:creator>Chris</dc:creator>
		<pubDate>Mon, 15 Feb 2010 21:05:15 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-99793</guid>
		<description>Intel Quad-Core Xeon – 64 bit 

This does not run in 64 bit mode.</description>
		<content:encoded><![CDATA[<p>Intel Quad-Core Xeon – 64 bit </p>
<p>This does not run in 64 bit mode.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Abhinav Kumar</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-99791</link>
		<dc:creator>Abhinav Kumar</dc:creator>
		<pubDate>Sun, 14 Feb 2010 19:28:38 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-99791</guid>
		<description>@Bruce

Correction: x86

yes you shud...</description>
		<content:encoded><![CDATA[<p>@Bruce</p>
<p>Correction: x86</p>
<p>yes you shud&#8230;</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Bruce</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-99784</link>
		<dc:creator>Bruce</dc:creator>
		<pubDate>Sat, 13 Feb 2010 21:22:03 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-99784</guid>
		<description>Should I run windows 7 64 bit then if I have parallels? instead of the x84 version?</description>
		<content:encoded><![CDATA[<p>Should I run windows 7 64 bit then if I have parallels? instead of the x84 version?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Gnuut</title>
		<link>http://osxdaily.com/2010/02/13/how-to-tell-if-your-mac-is-64-bit/#comment-99783</link>
		<dc:creator>Gnuut</dc:creator>
		<pubDate>Sat, 13 Feb 2010 17:24:51 +0000</pubDate>
		<guid isPermaLink="false">http://osxdaily.com/?p=2685#comment-99783</guid>
		<description>2009 Mac Minis do not run the kernel in 64-bit mode, even though the hardware is  capable of it.</description>
		<content:encoded><![CDATA[<p>2009 Mac Minis do not run the kernel in 64-bit mode, even though the hardware is  capable of it.</p>
]]></content:encoded>
	</item>
</channel>
</rss>

<!-- Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/

Page Caching using disk: enhanced (User agent is rejected)
Database Caching 1/3 queries in 0.003 seconds using disk: basic
Object Caching 266/267 objects using disk: basic
Content Delivery Network via cdn.osxdaily.com

Served from: osxdaily.com @ 2013-05-25 09:44:12 -->