Can I overclock my 1200 mobo, to get faster zorro 2

[utri007]

What would happend?

Aga graphics corrupted?how about disk drive IDE and sound?

I've graphics card and sound card, should I have something like buddha Ide controller ? to get everything work?

[Piru]

All timing would be off. Clock would run too fast, display modes would be off, sound pitch would be higher, floppy, mouse, keyboard, serial, everything would be off.

Since timing would be out of spec, all sort of troubles could result from it.

[Daedalus]

Hmmm... Well, in theory (and provided every single part can run at the new speed and there are no noise issues) it should work at a higher speed. This would mean though that anything synchronised such as the native graphics timings, sound timings, drive timings, clock, floppy access, basically anything run from the custom chips might have issues. Increasing the graphics output for example will not display on some monitors as the syncs will all be quicker... Not worth the risk and effort I'd have said!

[utri007]

Have anyone ever tried ?

[keropi]

by Piru on 2006/10/25 21:17:06    All timing would be off. Clock would run too fast, display modes would be off, sound pitch would be higher, floppy, mouse, keyboard, serial, everything would be off.    Since timing would be out of spec, all sort of troubles could result from it.

lol maybe u need to repeat that to the "A4000 64MB mobo ram hack"

[Effy]

Please don´t shoot me for not knowing for sure but isn´t the Zorro4 slot supposed to be faster than a standard Z2 busboard ?? And what about the Fast Zorro2 slots on a Zorro4 busboard

[Boot_WB]

A brief glance at the functional diagrams of the Amiga you can see that many parts of the Amiga operate as tuned ciruits (having inductance and capacitance in series) ie they only allow certain frequencies to pass through. You would have to totally retune the frequency of all parts of the board - adjusting inductance and/or capictance in each functional block.
It would be interesting to see what happens, although I'd imagine a black screen would be the result of a large change, and a very unstable computer the result of a slight change.
What you are suggesting is akin to moving BBC World Service up the frequency band to increase the amount of sampling rate of the braodcast but not retuning your radio, and hoping it will work.

[Agafaster]

...although theoretically one could hack the CPU so this was now running at 28.375MHz ...
...maybe not - the state machine would need to be radically altered to cope with the CPU running at the same speed as the bus arbitrator, which is expecting the onboard CPU to operate at half that speed.

[Crumb]

lol maybe u need to repeat that to the "A4000 64MB mobo ram hack"

You like laughing about what you don't have a clue?

Overclocking denise allows you to use Workbench normally. Stuff like games and demos usually have weird behaviour. But you could for example view early menu and stuff like that so it's definitely not useless.

And I've never written anything about overclocked ECS/AGA working flawlessly. But it certainly works, and it's useful for some stuff.

[keropi]

I would have made a comment about that, but I simply don't care anymore.