How to upgrade a 2000 to 2MB chip RAM?

[playgeneration]

Hi guys
I want to upgrade my rev6.3 2000 from its current 1MB to 2MB chip RAM, but I'm a bit confused on how this is done. I've seen mentioned that you just need to replace the agnus/denise chips, then I have also seen on amigkit a NTSC mini megi upgrade (but my 2000 is PAL, and its an expensive purchase for just an extra 1MB), and I have also read that I may need to change a seperate RAM chip.
 
I don't want to spend a fortune doing this, having already wasted money on two 030 accelerators that didn't work/died, I just want to add more memory to my 2000 so its more useable. So can anyone help please?

[Speelgoedmannetje]

I fear you can't :S considering this

[Tajmaster]

Hi guys
I want to upgrade my rev6.3 2000 from its current 1MB to 2MB chip RAM, but I'm a bit confused on how this is done. I've seen mentioned that you just need to replace the agnus/denise chips, then I have also seen on amigkit a NTSC mini megi upgrade (but my 2000 is PAL, and its an expensive purchase for just an extra 1MB), and I have also read that I may need to change a seperate RAM chip.
 
I don't want to spend a fortune doing this, having already wasted money on two 030 accelerators that didn't work/died, I just want to add more memory to my 2000 so its more useable. So can anyone help please?

Hi
 
You can upgrade an A2000 to 2MB chip ram using the DKB Megachip, Ive done this on a rev. 6.0 motherboard before and it will definately work on your 6.3 board. The manual states that you need to do some "modding" on the rev. 4.x boards but Ive never seen one so cant comment on that.
 
Its just a case of slotting in the MegaChip and then connecting the "fly lead" from the MegaChip to pin 36 on Gary, it takes all of 2 minutes to do that bit You do need the MegaChip though, I dont think you can do it any other way as far as Im aware.

[Fats]

You do need the MegaChip though, I dont think you can do it any other way as far as Im aware.

AFAIK on the A2000 board only enough address lines are routed to address 1MB of chip RAM. Therefor an extra board is needed to expand chip RAM to 2MB.

greets,
Staf.

[Karlos]

Normally you'd need at least the clinically obese version of Agnus, but I think the DKB Megachip above pretty much sorts it out, provided your motherboard is of the right revision.

[playgeneration]

ok thanks for the info, I guess it was too much to hope for it to be a simple and cheap upgrade

[save2600]

ok thanks for the info, I guess it was too much to hope for it to be a simple and cheap upgrade

Simple and cheap are two words Amigans have forgotten the meaning of. :lol:

Must say though, easiest (not cheap) solution is the DKB or similar MegaChip device. One wire to a pin off Gary, insert into the Agnus spot and you're done. Expect to pay $70-$90 for one of these fun little projects.