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Author Topic: Wanted: 68040!  (Read 8114 times)

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Offline vk3hegTopic starter

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Wanted: 68040!
« on: October 07, 2008, 09:45:32 AM »
I require the services of a 68040 cpu at 40Mhz, and the same speed Crystal Oscillator.

Wanting to upgrade my Warp Engine 4028!

Anyone got one laying around sucking up free electrons?

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Amiga 4000D: Warp Engine \'040 40Mhz, 150mb Ram, CyberVision 64/4, X-Surf, OS3.9
 

Offline Crumb

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Re: Wanted: 68040!
« Reply #1 on: October 07, 2008, 09:57:11 AM »
@vk3heg

IIRC Vesalia had some fast 040s for sale.
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Offline darksun9210

Re: Wanted: 68040!
« Reply #2 on: October 07, 2008, 10:08:20 AM »
i just clocked up my warp engine to 40Mhz just swapping the crystal without changing the cpu. yeah yeah i know, naughty me.  :roll:  but i had a massive heatsink and fan on there with thermal paste.
ran fine rendering for days and days...  :-D

as ever, your mileage may vary, and i take no responsability for any damage caused etc etc.  :lol:

--edit--
iirc, warpengines used 25Mhz 040's and clocked them up to 28Mhz, as i seem to remember them doing a deal where you could buy just the board and swap in the CPU off your A3640 card....
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Offline joekster

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Re: Wanted: 68040!
« Reply #3 on: October 07, 2008, 11:46:33 AM »
I have both. Not sure about the warp engine, but for the 040 - you usually need an 80mhz crystal for 40mhz operation. for $65+ ship its yours...
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Offline T3000

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Re: Wanted: 68040!
« Reply #4 on: October 07, 2008, 02:45:27 PM »
Quote

joekster wrote:
I have both. Not sure about the warp engine, but for the 040 - you usually need an 80mhz crystal for 40mhz operation. for $65+ ship its yours...


$65 for a crystal ?!?!  yer freakin nuts!  unless it's the crystal and the cpu...

80Mhz Crystal Oscillator (8-pin DIL) product code: CRYOSC002 at amigakit
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Offline joekster

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Re: Wanted: 68040!
« Reply #5 on: October 07, 2008, 03:52:30 PM »
crystal and CPU. Who do you think I am, doomy?
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Offline doctorq

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Re: Wanted: 68040!
« Reply #6 on: October 07, 2008, 04:37:31 PM »
Quote

you usually need an 80mhz crystal for 40mhz operation.


Not for a WarpEngine, unless you want to try to run the CPU at 80 MHz.
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Offline countzero

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Re: Wanted: 68040!
« Reply #7 on: October 07, 2008, 04:42:20 PM »
I have warp engine crystals gathering dust here (had to buy bulk when I upgraded mine.) I can send you 5 crystals just for postage (I'm in japan though)
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Offline alexh

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Re: Wanted: 68040!
« Reply #8 on: October 07, 2008, 07:20:31 PM »
If you can find an MC68040RC40A with a mask of L88M then it will run almost cold at 40MHz (compared to the original ones which could melt diamond at 25MHz)

The history of the 68040:(backed up with Motorola / Freescale data)

*In 1989 it went into production as the XC68040RCxxyy originally a 0.8um masks (D43B, D50D, D98D, E31F) part. These run exceptionally hot even at 25MHz and need heatsinks all the time.

*In 1995 the 68040 qualified to mc status. It was shrunk to a 0.65um mask (E42k) these parts run hot at 25MHz but dont need heatsinks, famous in MAC circles for overclocking. There are some XC 0.65um parts from 1992-95 with the mask E26A but I am unsure as to their heat dissapation or overclockability.

*In 2000 the 68040 was shrunk to a 0.57um mask (K63H) these run a lot cooler that all previous parts and again do not need heatsinks at 25MHz+.

*Finally in 2002 the last MC68040RCxxA mask was made (L88M) production was moved back to MOS11 FAB, again at 0.57um, with increased reliability (which should favour overclocking even more).
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Offline Kin-Hell

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Re: Wanted: 68040!
« Reply #9 on: October 07, 2008, 07:22:45 PM »
Quote

doctorq wrote:
Quote

you usually need an 80mhz crystal for 40mhz operation.


Not for a WarpEngine, unless you want to try to run the CPU at 80 MHz.


A 40Mhz Warp Engine uses an 80Mhz Crystal. ;-)

@ alexh

Did you ever find a 40Mhz 040? I should have a redundant one soon if the price is right!  ;-)
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Offline doctorq

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Re: Wanted: 68040!
« Reply #10 on: October 07, 2008, 07:28:07 PM »
Quote

Kin-Hell wrote:

A 40Mhz Warp Engine uses an 80Mhz Crystal. ;-)


Check again.
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Offline delshay

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Re: Wanted: 68040!
« Reply #11 on: October 07, 2008, 07:28:31 PM »
Quote

alexh wrote:
If you can find an MC68040RC40A with a mask of L88M then it will run almost cold at 40MHz (compared to the original ones which could melt diamond at 25MHz)

The history of the 68040:(backed up with Motorola / Freescale data)
In 1989 it went into production as the XC68040RCxxyy originally a 0.8um masks (D43B, D50D, D98D, E31F) part. These run exceptionally hot even at 25MHz and need heatsinks all the time.
In 1995 the 68040 qualified to mc status. It was shrunk to a 0.65um mask (E42k) these parts run hot at 25MHz but dont need heatsinks, famous in MAC circles for overclocking. There are some XC 0.65um parts from 1992-95 with the mask E26A but I am unsure as to their heat dissapation or overclockability.
In 2000 the 68040 was shrunk to a 0.57um mask (K63H) these run a lot cooler that all previous parts and again do not need heatsinks at 25MHz+.
Finally in 2002 the last MC68040RCxxA mask was made (L88M) production was moved back to MOS11 FAB, again at 0.57um, with increased reliability (which should favour overclocking even more).



there also the MC68040V which is 3.3v i dont know how hot it run.
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Offline Kin-Hell

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Re: Wanted: 68040!
« Reply #12 on: October 07, 2008, 07:29:15 PM »
Quote

doctorq wrote:
Quote

Kin-Hell wrote:

A 40Mhz Warp Engine uses an 80Mhz Crystal. ;-)


Check again.


I did, ....& guess what!?
...My fooker is 80Mhz!  :roll:
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Offline doctorq

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Re: Wanted: 68040!
« Reply #13 on: October 07, 2008, 07:43:28 PM »
@Kin-Hell

You must have a special edition then. All pictures on the BBoAH as well as amiga.resource.cx has either a 28, 33 or 40 Mhz crystal for the CPU, and both of mine has either a 28 MHz (28.5363 to be precicesly) or a 40 MHz.
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Offline Kin-Hell

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Re: Wanted: 68040!
« Reply #14 on: October 07, 2008, 09:31:28 PM »
Cyberstorm MKIII uses 80Mhz for 40Mhz 040. Isn't it something to do with a divide-by-two counter on the chip?

I ain't sure & really hope I aint digging a hole here!?  :-?

*edit*

brb.....

Crap! I owe an apology! Please excuse my tardiness!  :oops:

You're quite right, it is 40Mhz. I've had my hands on CSPPC', MKIII' &  Warp Engine borads in the last 60 hours!
Aside from the grief at seeing all this stuff go, I guess i'm getting my "p's" & "Q's" arse about farce!

Humble Apologies!....... 8-)

*edit again*

CSMKIII is 80Mhz for a 40Mhz 040. Definately!  ;-)
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