Re: Sun remarketing 2M board

Des,
- start diatribe -
No, genuine IBM PC AT's did not use 30 pin SIMM's. The PS/2 line did, but at the time IBM made there own 1 megabit chip and most of the early (~1987) 256Meg versions of the IBM SIMM used only 3 chips. These PS/2 IBM SIMMs will not work in the sun card. While apple started using 8 bit 30 pin SIMMs in the Mac Plus in 1986, it took a awhile longer for the PC folks to standardize on using SIMM's. By this time, many of the PC "clone" makers had designs that only used 8 bit SIMMs to cut costs.
- end diatribe -

The reason I say that these SIMMs are hard to find is because by the time PC makers started heavily using SIMM's (~1990), the 1 Meg SIMMs where cheap enough that most folks did not buy the 256K versions making them more rare.

Rick

On Dec 13, 10:10 pm, Des Hay <desmondl..._at_email.domain.hidden> wrote:
> Rick I'm pretty sure that the 9 chip parity SIMMs were used in old
> genuine IBM AT's and the like.
> Someone could confirm, picking up one of these old boxes to pillage the RAM
> should be pretty easy.
>
> Kind Regards
> Des

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