"Bill Rugolsky Jr." <[EMAIL PROTECTED]> writes:
> On Tue, Mar 06, 2001 at 12:48:25PM -0600, Bari Ari wrote:
> > I think Tyson Sawyer had some BX boards running pretty solidly a few
> > months back. Try looking at the Archives
> > <http://www.acl.lanl.gov/linuxbios/faq/archive/>
>
> Right, that's why I mentioned the 440BX (440GX ought to be similar).
> But the question is, do we get ECC essentially "for free" as a hardware
> feature once the motherboard is supported? I am under the impression
> that BIOS support is required to configure ECC correctly, particularly
> given that it can be switched on/off in the BIOS on some systems.
> Is this documented?
On the 440GX ECC ram seems to work fine. You need extra bits to implement
ECC so some chipsets support both ECC and non-ECC ram.
Theory says that you need to initialize ECC ram to all zeros before any
reads occur. In practice this doesn't seem to be needed. I have observed
this on both the L440GX and on the alpha DS10.
Eric
