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Date:      Tue, 01 Apr 2003 18:26:06 +0200
From:      David Landgren <david@landgren.net>
To:        =?ISO-8859-1?Q?=22Paredes_S=E1nchez_Mart=EDn_A=2E=22?= <MPAREDES@telmex.com>
Cc:        "BSD." <FreeBSD-Questions@FreeBSD.org>
Subject:   Re: Which Processor and motherboard is better (new to FreeBSD)
Message-ID:  <3E89BD9E.1050005@landgren.net>
In-Reply-To: <35BC9957B8699C42AB3A665E3C5656556CACF0@is~tmxmailhmo1.intranet.telmex.com>
References:  <35BC9957B8699C42AB3A665E3C5656556CACF0@is~tmxmailhmo1.intranet.telmex.com>

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Paredes Sánchez Martín A. wrote:
> I found in the intel web site that the Hyper-Threading has this
> requirements:
> 
> Hyper-Threading Technology requires a computer system with an
> Intel Pentium 4 processor at 3.06 GHz or higher, a chipset and BIOS
> that utilize this technology, and an operating system that includes
> optimizations for this technology.
> 
> By the way, what is PAE?

PAE eq Page Address Extensions. It allows for 36-bit addressing, which 
thus lets a 32-bit computer get past the 4Gb addressing limit. They have 
been around on Intel archictecture for ages in some form or other. I 
first read about them in DDJ. A search on their website turns up

	http://x86.ddj.com/articles/2mpages/2mpages.htm

It's also the thing that Linus Torvalds blasted a while back.

	http://www.theinquirer.net/?article=7966

Microsoft seem to be fairly gung-ho about it, searching on Goggle for 
"PAE Intel Page Address Extensions" brings up lots of links into their site.

David



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