DKB Megachip on A2000: PAL/NTSC issue, help needed

[desantii]

I have done that exact swap and it worked just fine so it might be an issue with your new Agnus or maybe the MB. The 8375 ones are hard coded to either PAL/NTSC so once you put the PAL chip it it will default to PAL (irregardless of your jumpers). You can then change in the early stratup or in workbench if required.
 

Hello.
 
I have an A2000 Rev6 PAL with a 8372A Agnus. I have bought on ebay a DKB Megachip but unfortunately, the Agnus fitted on it is NTSC only according to the Big Book (number 8375 318069-11). So before to try and fit it the 2000, i bought a PAL Super Agnus 2 MB in order to change the chip on the DKB: it is a 8375RO 390544-01 from an A500Plus.
 
But, with the DKB + Pal agnus my a2000 behave strangely: 2MB are recognized but it suffers several graphics glitches and eventually crashes completely.
With the DKB + NTSC Agnus, everything seems ok, even sysinfo says i have a PAL machine, but the picture is smaller, obviously NTSC. Maybe the combination NTSC Agnus + PAL Denise confuse sysinfo.
 
That's rather annoying to get a NTSC machine when it is supposed to be PAL. However, this A2000 used to have an RTG card to show workbench, and an Amber card flicker-fixer to output games. So, when it come to games and native amiga screen, what will happen with the sacndoubler?
How to make it PAL at last?
Any idea? Is it not possible to juste swap the agnus on the DKB?
 
thanks.

[desantii]

I know I had apicture somewhere so I will look for it, it was the megachip with socketed 8375
 
swaped this one (from an NTSC megachip)
Agnus (2 MB) 8375 318069-11


To this one (to try to create a PAL megachip)
Agnus (2 MB) 8375 390544-01

Well, that's what i call an old thread digging :-D
 
I am not using this A2000 anymore for now but i am planning to revamp it in a few months.
Would you have th exact reference of your 8375 Agnus for further upgrade (picture maybe)?
And can you confirm you have the DKB Megachip with clipped Agnus and not the Mini Megi with soldered Agnus?

[desantii]

When I did teh swap mine came from an A500+