Re: Can 30 pin 4 meg SIMMs be used

Robert Boyle (robert@garden.net)
Wed, 16 Oct 1996 00:19:36 -0400

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At 05:44 PM 10/15/96 -0700, you wrote:
>Can I use (2) 4 meg SIMMs in the PM2es and or do I need to fill all four
>slots....
>I have on hand a few extra 4 megs laying around.

The PM2xx series of term servers use a 386 processor. This is a 32 bit
processor with a 32 bit data path to memory. All 30 pin SIMMs are either 8
bits or 8 bits + 1 parity (9 bits) wide. To have an addressable memory
space, you need a 32 bit wide memory window (or 9*4=36 bits) So, yes, you
must use 4 SIMMs regardless of whether you use 256MBx8, 1MBx8, or 4MBx8.

-Robert

Robert Boyle - Engineer robert@garden.net WAN/Intranet/Internet Services
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