Amiga trapdoor memory detection

[tonata]

Hi,

I am new to the Amiga. I have recently acquired an AMIGA 500 with Workbench 1.3.
It has a trapdoor expansion RAM which is refereed as "slow memory". I did replaced the battery, but now I am not sure the expansion RAM is detected anymore. Leander game halts once it says "Expansion Memory detected".

Which program does show the amount of slow memory? I am not sure how to interpret the results from sysinfo program.

[tonata]

I says for "total":

Available: 835520
In-use: 204600
Maximum: 1040120
Largest: 440832

"Maximum" is maximum installed or maximum that could be installed in general on Amiga 500 ?

Thanks

[tonata]

It says similar.

Page 1:

total size: 506 kb
Memory type: SLOW RAM PUBLIC
Node name: Fast Memory

Page 2:

total size: 512 kb
Memory type: CHIP RAM PUBLIC
Node name: Chip Memory

How much fast memory does an Amiga 500 has without an expansion? And how much it was added in my case?

[tonata]

So the fact that I have 506 kb Fast Memory which is actually "Slow Memory" means the expansion works correctly ?

[tonata]

Thanks!!!

I already replaced the battery with a button one. The thing is that I was afraid that I could have done something wrong. RTC works fine but this was no indication if the RAM was also OK.