RAM testing app

[madsjm]

I'm having some problems with the ram in my A4000. Whenever I fill the ram disk with data, I get a guru and the Amiga resets.

I tested some memory checking apps off Aminet, but they just give me a long (never ending) list of faulty memory addresses.

Do you know any application which would give me a more user friendly feedback (e.g. "faulty memory in bank 2")?

[rkauer]

Nope, but what adresses are popping up? Wherever they are, just pull out the SIMMs of your 4000 board and put another ones.

Those SIMMs are unexpensive or even you can grab some for free.

[Karlos]

Do you know any application which would give me a more user friendly feedback (e.g. "faulty memory in bank 2")?

The problem here is that there isn't any reason why the application would actually know which SIMM a particular range of addresses maps to. The phsyical layout of memory (that is, which chips on which SIMMs) is for the most part controlled by the memory controller in the system.

Try moving the SIMMs around and see if the address ranges with the largest distribution of errors moves with it. This might give you some idea which SIMM is faulty.

It might be that simply cleaning the connector pads and reseating the memory fixes the issue even. A dull contact is not good when you are dealing with signals that are switching millions of times a second.

[Zac67]

Mismatching gold and tin contacts on SIMMs and sockets can be the source of strange errors months/years later. Giving them a clean and moving them a bit around will get rid of those - until they corrode again.