A500 and games (not working)

[nickoteen]

Hvala.
 
What do you mean by "if the board has been modified ... " ? What board ? The morherboard ? I've seen it naked plenty of times so far and it doesn't look like it has been touched by anyone. No hw alterations as far as I can tell. How can one tell anyways ? Maybe I'm not looking at the right angle.

[nickoteen]

Can you tell me what is the exact filename of one of the ADF games that do not work and I can try it on one of my Amigas.
I know of one game "Final Fight" that refused to work on all of my Amigas until I got NTSC A1000. This was the only one that the Final Fight worked. I gont know why, my A500 was about same spec before I modified it to 1MB chip ram.

Ok, to name just a few:
 
Turrican II - The Final Fight_Disk1.adf
Syndicate_Disk1.adf
Cannon Fodder 2_Disk1.adf
Prince of Persia.adf
Lotus Turbo Challenge 2.adf
 
the intro loads fine, but afterwards it's just black screen and nothing happening.
 
Opposed to those, these work without any problems:
 
Another World_Disk1.adf (and 2)
Loom_Disk1.adf (2,3)
Leisure Suit Larry 1 - In the Land of the Lounge Lizards (remake)_Disk1.adf (2,3,4)
Dune_Disk1.adf (2,3)
Secret of Monkey Island, The_Disk1.adf (2,3,4)
 
and many others ...

[nickoteen]

It's dead easy to control - type avail into shell. What does it output?

It outputs (amongst other things):
 
chip max:  523264
fast max:  524288
total :     1047552

[nickoteen]

iirc, the games you listed as working require only 512K RAM (not sure about Another World though). I'd try more of 1Mb RAM games.
The 'usual procedure' is to re-seat all chips (or at least press down until you hear crack) and maybe replace capacitors, test voltages too.
There was also an "Advanced Amiga Analyzer", some of its tests can be used without extra hardware, perhaps it can help.

A bit lost here ... the avail command stated that I have 512kb chip and 512kb fast ram. You think there's something wrong with my ram ? Which one ? The one on the MB, or the one on the expansion card(s) ?

[nickoteen]

could be, have you tried problematic games without the expansion RAM?

Yes. I've tried 'em without the extra ram. No go. I've pressed all the socketed chips until I heard a crack. Another no go. So, not a chip creep issue. I've even replaced the Denise chip with another one (don't ask me why, it sounded like a good idea at the moment), but it didn't work either.
 
To make the long story short ... some stuff works on my Amiga, some doesn't. I guess I'll just have to settle with what I've got.

[nickoteen]

Ok. I'll try. Where can I get WhichAmiga ?

[nickoteen]

Ok. I'll try. Where can I get WhichAmiga ?

Found it. Ran it under WinUAE ... offcourse it worked. Tried to run it on Amiga, the Amiga said it's not an executable file and returned error code 10 or something similar.
 
I then ran SysInfo on Amiga and compared it with WhichAmiga output under WinUAE. The configurations are almost identical (Same Agnus, Denise chips, same CPU, same available memorym same kickstarts). I say almost becouse for some reason, WhichAmiga reported the cpu speed of 9 Mhz under WinUAE, but I don't think that's something I should bang my head against.
 
So, once again, I'm where I started, at the beginning. One thing though, I checked the file sizes of WhichAmiga, both on PC and Amiga.
The one on PC was 20KB in size, but once transfered, it only took up about 8 KB on Amiga floppy. Is this normal ? I know Amiga has a completely different file systems which utilises disk space much wisely than Windows, but ... "This is not an executable file" message is bugging me. I'm thinking ... maybe not all of my AExplorer transfers are sucessfull even though I don't get any transfer errors.

[nickoteen]

Ok, thanks for all your replys.
 
I think I've narroved a problem a bit.
I took out my "spare parts" only Amiga unit out of the closet, installed a fdd which it lacked and tried out all those games I was whining about not working on my second, troubling Amiga. Both units have exactly the same MBOs. Rock Lobster rev 6A.
On my spare Amiga everything works without any problems. So I figured, it must be a hardware problem. I then started replacing all the chips (Denise, Paula, Gary, CIAs, MC68KP8 ... but to no avail. The only IC still not replaced is Fat Agnus since I don't have the necessary IC removal tool to do so.
 
At this point I'm certain that it's not the dirty fdd heads, not the Amiga Explorer transfer, not the Rom sharer board (tried without it, just KS 1.3), not the viruses (checked the disks with several av utils) that was bugging me, but a hardware issue of some sort after all.
 
So, what do you think, could it be the Fatso giving me the headaches all this time ?
I'm in process of ordering two things:
 
1.) A PLCC extraction tool ( such as this: http://www.jonard.com/jonard-ecommerce/control/product/~product_id=11029 ) which will hopefully allow me to replace that last non soldered IC on the MBO
 
2.) Another rev 6A MBO in case the removal of Fat Agnus doesn't go smoothly, or it turns out it's not the Agnus but some other hw malfunction which I won't be able to fix.
 
Anywayz, thank you all for listening. Your help has been greatly appreciated.