Subject: Re: ECC on the ASUS board
To: John M Vinopal <>
From: Andrew Gillham <>
List: port-i386
Date: 08/19/1996 21:09:55
> Enabling ECC on the Asus T2P4 does cause a performance hit as
> commented by someone (somewhere back in the mail).  The hit is
> caused by DRAM read timing of x333 instead of x222 with 60ns 
> memory.  Can you use ECC and manually set x222?  It would
> appear so but I have no idea what problems this might cause
> (if any).
> lmbench reports that the memory access time jumps from 180 to
> 258 ns.

With my Tyan Tomcat II, 60ns parity SIMMs, enabling ECC changes
the LMBENCH numbers from 280 to 281 (I believe).