Welcome, Guest. Please login or register.

Author Topic: A500 512KB Chip VS A500 1MB Chip  (Read 8143 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« on: December 02, 2012, 06:15:22 PM »
Just changing to a your Agnus doesn't give you more chip RAM.  It gives you the "ability" to have 1M.
You still have to add the other 512k TO chip.
That's usually done by modifying your MB a bit so that the 512k FAST you have in the belly becomes 512k more of CHIP.

I'm not sure if he's saying that that hack would let you toggle between the 2 configs or not? (sounds like it)

There are a FEW games that don't like more than 512k chip.  Dragon's of Flame comes to mind....
But they are very very early games and generally not the good ones. ;-)
Also, there is a program called Degrader that lets you disable the extra 512K CHIP if you really want to play them.  (Or if his hack works; I have extra CHIP, but haven't tried the above mentioned hack to the A19 jumper)

The bigger compatibility hit for older games is with kickstart upgrades.

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.
 

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« Reply #1 on: December 02, 2012, 09:39:04 PM »
Quote from: Lord Aga;717235
I don't think I'll be doing this. I'll go for an A500+ instead.

If you can get an A500+, that's great.
But the mod is super easy.
I even did it.  ;-)  (Not with the switch, but just adding the 512k as CHIP.)

Good luck either way.

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.
 

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« Reply #2 on: December 07, 2012, 02:26:26 AM »
Quote from: barney;717895
The reason I have doubt is because if the hack is absolutely necessary and I never did it yet, then I likely don't have 1mb chip Ram.
Open up a SHELL and type "avail" to see.

Very few A500's came with 1M CHIP.  The A500+ did, although I think some very early ones were 512k CHIP.

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.
 

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« Reply #3 on: December 07, 2012, 04:26:23 PM »
Quote from: alexh;717909
I dunno if that is true. My "Flight of Fantasy" pack came set for 1M chip. Annoying when playing Lionheart

Not quite sure what that means..  :confused:

OH!  I just re-read what I typed..
Duh!!

I know what you mean..  I was considering an A500 to be different from an A500+.

Even if you include the 500+ as an A500 tho, I still think very few A500's came with 1M CHIP.
Only near the end of life when they were stuffing a few A500+ motherboards in the A500 cases, as I understand it, and then the A500+'s.

I'm not saying it didn't happen.  I didn't say that no A500's came with 1M CHIP.  Just very few.

Of course, in that case, I'm assuming that very few of the total Amiga 500's that were sold were 500+'s.

desiv
(And by "very few" I mean in comparison to the Amiga 500's sold.  It could well be many thousands.  But compared to the (something over a million) 500's sold, I consider that very few.)  I suppose I should have said a small percentage.
« Last Edit: December 07, 2012, 04:41:16 PM by desiv »
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.
 

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« Reply #4 on: December 07, 2012, 09:50:25 PM »
I suppose that depends..
It's not that difficult to get 2M CHIP on an A500.  I have that.
The mod mentioned and a DKB miniMegaCHIP.
Wasn't that spendy...

But, is it worth it?
Interesting question.  
If you're wanting to do more serious video/graphics or music/sound stuff, then yeah.
Those things can get CHIP hungry.

But for the average user?  (Like me)...
Well, I'm glad I have a 2M CHIP A500.  It was fun to get there, but I doubt I'll ever really use it....

Still, I got a decent deal on the DKB, so I think it was worth it.  For the Amiga enthusiast in me... ;-)

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.
 

Offline desiv

  • Hero Member
  • *****
  • Join Date: Oct 2009
  • Posts: 1269
    • Show all replies
Re: A500 512KB Chip VS A500 1MB Chip
« Reply #5 on: December 08, 2012, 06:44:11 PM »
Quote from: alexh;718108
Flight of Fantasy A500's were NOT A500+. They were half ECS A500's (ECS Agnus but regular Denise) and mine with a 512Kbyte trapdoor RAM was configured for 1Mbyte of Chip RAM.
So, I wonder if those were some of the ones that were talked about where it was a 500+ MB in an A500 case?? I don't know enough about them to know whether motherboard revs are generally specific to 500+ or ?????

Otherwise, kind of weird that Commodore would bother to mod boards for 1M CHIP, but it is Commodore...  ;-) :-)

I still think it's probably in the less common area, but that's just a guess.

desiv
Amiga 1200 w/ ACA1230/28 - 4G CF, MAS Player, ext floppy, and 1084S.
Amiga 500 w/ 2M CHIP and 8M FAST RAM, DCTV, AEHD floppy, and 1084S.
Amiga 1000 w/ 4M FAST RAM, DUAL CF hard drives, external floppy.