Date: Sat, 22 Jun 1996 17:13:48 -0500 From: "Bradley Dunn" <dunn@harborcom.net> To: nash@mcs.com Cc: freebsd-hardware@freebsd.org Subject: Re: Mixing SIMMs of different speeds Message-ID: <199606222118.RAA17013@ns2.harborcom.net>
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What I have always been told is that put the slowest chips first. Most motherboards set the speed at which they access memory by the speed of the first chip. Therefore if you put the 70 after the 60, it will try to access the 70 at 60, which is no good. But the other way around, it will access the 60 at 70, which works fine. On 22 Jun 96 at 15:41, Alex Nash wrote: > I'm wondering if I can mix 60 and 70ns SIMMs. Everyone says don't, [...] > Now I'm starting to think, what if I ran with 70s in banks 1 & 2 and > 60s in banks 3 & 4? Since the motherboard runs with 70s ok, but the > 60/70 mixture didn't work the first time, it must be able to > determine the access speed. Is the motherboard using bank 1 to > determine what speed it should access memory with? (This is a Tyan > S1462 MB.) Bradley Dunn <dunn@harborcom.net>
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