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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: madsjm on April 24, 2008, 02:00:24 PM

Title: 30 pin simms - with or without parity?
Post by: madsjm on April 24, 2008, 02:00:24 PM

I'm buying 30 pin simms for my GVP 2000 HC+8 and GVP A500 HD8+. I was thinking 8 x 1 MB for the 2000 and 2 x 4 MB for the 500.

Do I choose with or without parity? I have been looking at this web page (http://www.memoryx.net/generic-memory-30-pin-simm.html), and honestly there are too many to choose from.  :-)

Title: Re: 30 pin simms - with or without parity?
Post by: rkauer on April 24, 2008, 04:26:24 PM

 Amigas don't need, nor require parity SIMM chips. And those without parity are cheaper, anyway.

Title: Re: 30 pin simms - with or without parity?
Post by: Zac67 on April 24, 2008, 06:39:26 PM

You mean you actually want to buy 30 pins SIMMs??? I've still got dozens of them lying around, just tell me how many you'd like and what speed you require - 1 MB only, I gave all 4 MB away last year.

I'll be on the road next week, so if you want them now, you're out of luck.

Title: Re: 30 pin simms - with or without parity?
Post by: joekster on April 24, 2008, 06:50:02 PM

Either type will work. Parity is not used on those boards.

Title: Re: 30 pin simms - with or without parity?
Post by: hardlink on April 24, 2008, 08:31:31 PM

Quote

rkauer wrote:
 Amigas don't need, nor require parity SIMM chips. And those without parity are cheaper, anyway.

Amigas, yes, but what about GVP :) As the current discussions show, GVP SIMM32 modules are 'special'. On the earlier GVP products, did they use 30 pin SIMM modules with special wiring? I actually have some of those, but I've never changed the RAM configuration, so I don't know.

Title: Re: 30 pin simms - with or without parity?
Post by: rkauer on April 25, 2008, 02:31:22 AM

 Those earlier GVP boards use to use regular 30-pin SIMM. The faster, the better.

 If you feel lucky, chase a pair of 60ns SIMM.