Amiga.org
Amiga computer related discussion => Amiga Software Issues and Discussion => Topic started by: stanlong on April 24, 2009, 11:37:19 PM
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does parity matter ?
edo or fpm does it matter?
are tin conectors ok?
what is good?
whhat to avoid?
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non-parity preferable but not an absolute
edo or fpm - doesn't matter
tin connectors ok
double height simms are best avoided if you intend on using such in a Blizzard MkIV card
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thank you for your no waffle reply :-D
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> does parity matter ?
Using parity SIMMs on no-parity systems is usually no problem (for 30-pin and PS/2 SIMMs, different story for DIMMs).
> edo or fpm does it matter?
EDO can work faster if the RAM controller is designed to make use of this feature (don't think any Amiga hardware is). Some non-EDO RAM controllers don't like EDO, so you'd need FPM.
> are tin conectors ok?
The contact material (gold vs tin) of the SIMMs should match that of the sockets. Otherwise a gradual chemical reaction will degrade the contact quality over the course of months/years and require you to 'vigorously reseat' the SIMMs every once in a while. Mismatching contacts is a no-no in systems you heavily rely on (servers and such).
> what to avoid?
- before handling RAM (or other chips) make sure you've grounded yourself and the system you're working on to have all static electricity discharged
- discharging through chips kills them instantly or severly shortens life
- move as little as possible to avoid getting statically charged again
- avoid touching conducting areas, handle at edges only
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> edo or fpm does it matter?
EDO can work faster if the RAM controller is designed to make use of this feature (don't think any Amiga hardware is).
At least two are.