Talk:Physical Address Extension: Difference between revisions

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			== PAE Xeon only ==
	== "Physical Address Extension " vs "Physical-Address Extension" ==

	I wanted to change ] into ] because it is the correct English spelling ("an extension regarding the physical addresses", not a physical peculiarity of a more generic "Address Extension") and also used by the official documentation by AMD: http://support.amd.com/TechDocs/24593.pdf

	Unfortunately Intel does it wrong and writes this term without dash. :-(

	Perhaps we should at least mention this fact in the beginning of the article? --] (]) 13:04, 12 February 2016 (UTC)

			It should be made clear the only IA-32 processor which supported Physical Address Extension as defined by Intel was Xeon. PAE requires BOTH 36 address registers AND 36bit data bus for RAM.
	: Please don't. Intel invented it, they get to name it. Windows follows the Intel usage, as does the Shanley book. AMD appears to be a distinct minority in their usage. There is no possible confusion anyway, so no need for a hyphen. ] (]) 17:17, 12 February 2016 (UTC)

			All IA-32 processors had at most a 32bit data bus. 36 address registers only allows paging - it is not PAE support.
	: I see you similarly moved Page Size Extension. I'll be undoing that. ] (]) 18:22, 12 February 2016 (UTC)

			Only Xeon had 36bits for RAM. Xeon supported 8GB RAM total. The 8GB was split into 2x 4GB memory banks accessed one bank at a time. The 32bit + 4bit bus allowed a segment selector.
	: Damn it. Since the redirects have edit histories, now we have to go through "requested moves" to fix it. ''Perhaps'' you should have at least asked before taking it upon yourself to move PSE? ] (]) 19:19, 12 February 2016 (UTC)
			(Xeon was technically a 36bit CPU).

		⚫	] (]) 23:25, 10 May 2020 (UTC)
	:: Sorry for that. I didn't want to make confusion. :-/
	:: But according to ] the spelling ''with'' hyphen would be the correct one if Intel wouldn't define it as a fixed term without hyphen, right?
⚫	~~:: --~~] (]) 10:55, 15 ~~February~~ ~~2016~~ (UTC)

			:No, as that's rubbish. Where's the definition of that per Intel? The article currently has it right ] - the chipset and motherboard etc have to also support 36 bit, which I know myself certainly some non-Xeons did. <span class="vcard"><span class="fn">]</span>; ]</span> 22:09, 1 September 2020 (UTC)
	:::So which of them is the "common term", as per ]? ] (]) 11:08, 15 February 2016 (UTC)

			== First Linux kernel to support PAE ==
	:::: I checked almost all of the references here (got tired of it after about #23). Out of that batch, AMD appears to be alone in using the hyphen. ] (]) 04:47, 16 February 2016 (UTC)

			The section says 2.3.23 but under the old scheme odd numbers were development kernels (2.2 series was the release, 2.3 was concurrent and the development space for what would ship as 2.4). Would probably make sense to also mention which kernel was the first to ship with PAE, since no released distro would use a development kernel. --] (]) 03:44, 1 May 2022 (UTC)
	*'''Comment'''. I don't care one way or the other. "Physical-address extension" is better English, but I don't see "physical address extension" giving rise to confusion with "physical address-extension". It's a technical term. Complicating the issue is the title is capped ("Physical Address Extension"), and that means the article is about a proper noun. It is not just a generic "physical-address extension" but rather the particular PAE described by Intel. ] (]) 04:14, 16 February 2016 (UTC)

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PAE Xeon only

It should be made clear the only IA-32 processor which supported Physical Address Extension as defined by Intel was Xeon. PAE requires BOTH 36 address registers AND 36bit data bus for RAM.

All IA-32 processors had at most a 32bit data bus. 36 address registers only allows paging - it is not PAE support.

Only Xeon had 36bits for RAM. Xeon supported 8GB RAM total. The 8GB was split into 2x 4GB memory banks accessed one bank at a time. The 32bit + 4bit bus allowed a segment selector. (Xeon was technically a 36bit CPU).

Onzite. (talk) 23:25, 10 May 2020 (UTC)

No, as that's rubbish. Where's the definition of that per Intel? The article currently has it right Physical Address Extension#Hardware support - the chipset and motherboard etc have to also support 36 bit, which I know myself certainly some non-Xeons did. Widefox; talk 22:09, 1 September 2020 (UTC)

First Linux kernel to support PAE

The section says 2.3.23 but under the old scheme odd numbers were development kernels (2.2 series was the release, 2.3 was concurrent and the development space for what would ship as 2.4). Would probably make sense to also mention which kernel was the first to ship with PAE, since no released distro would use a development kernel. --97.115.191.42 (talk) 03:44, 1 May 2022 (UTC)

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