Welcome, Guest. Please login or register.

Author Topic: Wicher 500i - classic turbo card for A500  (Read 12615 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline Iggy

  • Hero Member
  • *****
  • Join Date: Aug 2009
  • Posts: 5348
    • Show all replies
Re: Wicher 500i - classic turbo card for A500
« on: March 09, 2017, 09:08:20 PM »
How do you get a 68000 to clock at 50 MHz?
I've never seen even the HC versions pushed that high.

The depressing part is an '020 or '030 at half that speed would still dust a 50 MHz 68000's fanny.
And...there are 50 MHz '030 components.
"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"
 

Offline Iggy

  • Hero Member
  • *****
  • Join Date: Aug 2009
  • Posts: 5348
    • Show all replies
Re: Wicher 500i - classic turbo card for A500
« Reply #1 on: March 09, 2017, 11:16:34 PM »
Quote from: Oldsmobile_Mike;823137
I think this is another one of those "homebrew" type projects, along the lines of the TerribleFire, etc.  The designers are starting with an '000 and hopefully moving up from there as they learn.  ;)


Still, where the heck do you find 50MHz 000s?
I've seen 66MHz CPU32 derivatives, but nothing this overclockable with an 000 or 010 designation.

And yeah, working with '020 and '030 cpus is SO much more complicated, but there are some operations that are up to 6 times faster.
"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"
 

Offline Iggy

  • Hero Member
  • *****
  • Join Date: Aug 2009
  • Posts: 5348
    • Show all replies
Re: Wicher 500i - classic turbo card for A500
« Reply #2 on: March 10, 2017, 04:12:44 PM »
Quote from: Spidi;823168
Overclocking HC version.


I didn't know they could be pushed that far.
But its always been known that Motorola greatly under rated them, so...
"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"
 

Offline Iggy

  • Hero Member
  • *****
  • Join Date: Aug 2009
  • Posts: 5348
    • Show all replies
Re: Wicher 500i - classic turbo card for A500
« Reply #3 on: March 10, 2017, 09:09:31 PM »
Quote from: zipper;823170
The original 68HC000 in Supra Turbo 28 clocked happily to 28MHz - I did see some mentions that somebody did clock it to 42 MHz. Those CMOS chips were very tolerant.


I know about the Supra, and I have heard the claims of higher clocks, I've just never heard of anyone pushing one to 50MHz.

I'd love to know if they are overvolting it.
"Not making any hard and fast rules means that the moderators can use their good judgment in moderation, and we think the results speak for themselves." - Amiga.org, terms of service

"You, got to stem the evil tide, and keep it on the the inside" - Rogers Waters

"God was never on your side" - Lemmy

Amiga! "Our appeal has become more selective"