View Full Version : Megadrive overclocking
The_EniGma
07-24-2004, 07:19 AM
Ive heard of people overclocking their megadrives/genesis and they claim the final speed is something like 13-16 mhz but..... while reading a retro issue of Edge i stumbled upon a page with the tech specs and the main cpu was a 68000 m running at 7.67 mhz but it also listed a co processor the Z80a running at 3.58 mhz so the total speed would have been 11.25 mhz now seing as overclocking the 68000 to say 13 mhz + the 3.58 coprocesser would mean a final speed of 16.58 mhz! and why has no one attempted overclocking both the 68000 and the z80a
thanks for reading
EniGma
robotriot
07-24-2004, 07:25 AM
You can't just sum up the MHz of both CPUs, they always work independently and have different tasks. Besides, I don't see why one should overclock consoles, except "because you can" ;)
The_EniGma
07-24-2004, 07:34 AM
ah i think i see now but the overclocking caused many problems. i guess sega stuck with 7.67 mhz because it caused least glitchs? or the games were completly designed only to be running on a 7.67 mhz processer and a 3.58 mhz coprocesser :? real headscracthing
Flack
07-24-2004, 09:06 AM
Try searching for "overclocking" and "Genesis" in the forum's search engine. For a while it seemed like there were three new topics a day about it. You might also want to contact the user Epicenter, he dedicated a lot of time and knew quite a bit about the topic.
Why would you do something like this. I can see over clocking the Nes to get ride of its sprite and lag problems but the genesis games I've come across had none of that.
Sorry about the thred jack.
Flack
07-24-2004, 09:39 AM
Again, I have you refer you all to the forum's search feature. Believe me, anything that can be said on this topic has been.
Overclocking a system - any point to this?
http://www.digitpress.com/forum/viewtopic.php?t=29704
Mega Drive / Genesis Overclocking!
http://www.digitpress.com/forum/viewtopic.php?t=27968
G4 MegaDrive/Genesis Overclocking TV Feature
http://www.digitpress.com/forum/viewtopic.php?t=33288
Overclocked MegaDrive/Genesis Consoles - New lower prices!
http://www.digitpress.com/forum/viewtopic.php?t=32045
etc etc.
My apologies. I just haven't seen this topic as of late.
digitalpress
07-24-2004, 10:13 AM
Don't bother contacting Epicenter for a mod - I did so several months ago and still have not received my Genesis or money back.
He MAY know how to do it, but his services are not recommended.
omnedon
07-24-2004, 10:29 AM
Thanks for the update. :angry:
Flack
07-24-2004, 12:23 PM
Don't bother contacting Epicenter for a mod - I did so several months ago and still have not received my Genesis or money back.
He MAY know how to do it, but his services are not recommended.
Yikes. Well I'm sure he's been quite busy on his quest to shut down every Power Joy III seller in every mall in America ...
I have a stack of Genny's I've picked up over the last year from thrift stores. I'd be glad to give one of them a new home if you need another one!