OverClocking Questions

[melott]

I'm thinking of overclocking my WarpEngine 040 @ 40mhz.

This brings up other questions....(I'm no Electronics wizz)

What would be the practial limits considering the rest
of the Motherboard, ie, bus speed, custom chips, SCSI
port etc.??
Oli is doing the ColdFire thing, how will the rest of
the MoBo deal with the extra speed??

Why not just change the oscillerator on the MoBo and
get the extra speed, aside from the extra ram and other
add-ons on an accelerator card ??

Wouldn't the data bus speed at some point make any faster
CPU pointless?
The data bus on my A3k runs at what, 25mhz ??
At what practical point will the MoBo say enough ??

[Jose]

Does the WarpEngine support an 060? If so, and if it's as easy to upgrade as in the Cyberstroms you'd much better upgrade to an 060.

[Doobrey]

melott wrote:

Why not just change the oscillerator on the MoBo and get the extra speed

If only it was that simple..
You can`t change the mobo timing.Even if the creaky old custom chips could take being clocked faster, it`ll completely stuff things up.
 PAL/NTSC screens would be garbled cos their timings changed, sound would come out of Paula at a different pitch, chip ram would probably be unstable at best etc

Wouldn't the data bus speed at some point make any faster
CPU pointless?

 Only if you ran it without any memory installed on the accelerator.
 Since it`ll probably spend most of it`s time reading/writing to the fast mem, the speed of the data bus on the motherboard only comes into play when you need to need to talk to it (native gfx/sound/disk IO etc).
 

[TjLaZer]

I would not OC the 040/40MHz, that chip runs hot as it is, and 40MHz is at the higher end of the speed, so you are asking for trouble.  Now a 040/25Mhz would be a nice overclocker.  I have a Apollo 1240/25MHz running at 33Mhz no problems.