WOW nice ceramic cpu, there are almost no cpus like that and ones with gold pins and such...
I think 68010 is ever more dificult to find
I replaced my Z80 to a STclone (draws less current), put a PSU so i can get rid of the wall transformer,a pair of 128K*8 SRAM...
well enough of talking about my MD... heres a picture instead:
overclock is at the back of the board
tell me what you think
Last edited by Jorge Nuno on Fri Jul 06, 2007 11:48 pm, edited 1 time in total.
Jorge Nuno wrote:WOW nice ceramic cpu, there are almost no cpus like that and ones with gold pins and such...
I think 68010 is ever more dificult to find
I replaced my Z80 to a STclone (draws less current), put a PSU so i can get rid of the wall transformer,a pair of 128K*8 SRAM...
well enough of talking about my MD... heres a picture instead:
evildragon wrote:
you upgraded the RAM? how does that work? does it affect any games, specifically 32X and Sega CD?
Well I can't test 32X and segaCD, because i don't have them ,
Right now A16 and A17 are currently tied to VCC and as expected with 64k everygame works fine
I will connect them to the 68k addresses next monday, I don't have time now (exam tomorrow, saturday)
did you see the picture? it's on my ftp so i would like some feedback about the ftp LOL
I wonder how the memory addresses loop now... for example, a game that normally accesses a looped address, perhaps with 128K it will fail and point to the wrong location...
ok thanks for the input... I'll put it in imageshack
the memory mirroring is still working because I'm wasting the higher adresses (for now)... next week I will connect the full 256Kbytes (it is 2*128K*8) full range, then I will test my game collection... it is small thou
OK my megadrive on imageshack check the post again
Jorge Nuno wrote:ok thanks for the input... I'll put it in imageshack
the memory mirroring is still working because I'm wasting the higher adresses (for now)... next week I will connect the full 256Kbytes (it is 2*128K*8) full range, then I will test my game collection... it is small thou
OK my megadrive on imageshack check the post again
wow, so the RAM is surface mount.. i was gonna do that memory mod, but my surface mount soldering sucks..
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