Date: Sun, 19 Mar 1995 17:28:31 +1000 From: Bruce Evans <bde@zeta.org.au> To: nate@sneezy.sri.com, phk@ref.tfs.com Cc: core@FreeBSD.org, hackers@FreeBSD.org Subject: Re: NMI Error success story Message-ID: <199503190728.RAA10360@godzilla.zeta.org.au>
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>> But, I did notice that the static cache rams on the new motherboard were >> 15ns, and on my old (buggy) motherboard they were 25ns. Because I had >> nothing to lose and feeling like I couldn't make the problem any worse I >> swapped the cache chips on the motherboards. >I will add that I did the same surgery on my machine, which worked fine >before and after, with the lefthand spin to it that it ran around 10% faster >afterwards because I could get the cache burst down to 3-1-1-1 instead of >3-2-2-2. Rod tells me it shouldn't work, but I've had good results from setting the cache burst to 2-1-1-1 on systems with mediocrely rated cache RAMS (only 20ns for the tag RAM if I remember right). Bruce
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