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From: Erich Dollansky <erich@apsara.com.sg>
Organization: apsara green technology pte ltd
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Date: Thu, 27 Aug 2009 11:30:15 +0800
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Cc: Steve Watt <steve@watt.com>, hackers@freebsd.org
Subject: Re: enable ECC in OS code?
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Hi,

On 27 August 2009 am 06:53:36 Steve Watt wrote:
> In <4A954A35.4030207@icyb.net.ua>, avg@icyb.net.ua wrote:
> >Assuming that ECC data lanes are connected between the two on
> > motherboard, and given that BIOS doesn't perform any ECC
> > setup (nor there is any option to control that) - would it be
> > possible to turn on ECC from OS code? Or is it too late in
> > the game already?
>
> It's about 100 times easier to have the BIOS do this.  First
> off, it's usually quite specific to the chip set exactly how to

how should it be done at OS level at all when the OS is loaded 
into RAM?

I do not thing that normal PC hardware is capable of handling 
this.

Only code running in a ROM can do this.

Erich