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Author Topic: 68040 cpu markings  (Read 2301 times)

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Offline fishy_fizTopic starter

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68040 cpu markings
« on: February 04, 2011, 11:04:38 AM »
Im currently awaiting the arrival of an apollo 1240 card (cant wait, feel like a kid at christmas:)) for my a1200, but Im not sure what clock speed it is. I can vaguely make out some markings on the cpu on the picture, but if someone can tell me what the markings typically are, I think I'll be able to work it out.
The price wasnt *too* bad, so I wouldnt be disappointed if it's only a 25mhz version, but I'd sort of like to know before it arrives  :)
From the markings I can make out, it comes down to whether the clock frequency is written on the top or second line of letters/numbers as I can make out both 33 and 28 (I think) in the picture.
Thanks.
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Near as I can tell this is where I write something under the guise of being innocuous, but really its a pot shot at another persons/peoples choice of Amiga based systems. Unfortunately only I cant see how transparent and petty it makes me look.
 

Offline zipper

Re: 68040 cpu markings
« Reply #1 on: February 04, 2011, 11:23:45 AM »
It's on the chip, like XC68040RC25A is an early version of 25 MHz chip. Usually clocked at 28 MHz, with a 56 MHz oscillator.
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Offline Franko

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Re: 68040 cpu markings
« Reply #2 on: February 04, 2011, 11:35:45 AM »
Even at 28Mhz you wont be disappointed, especially if your going straight from an 020 to the 040... :)

Enjoy your new card when it arrives... :)
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Offline fishy_fizTopic starter

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Re: 68040 cpu markings
« Reply #3 on: February 04, 2011, 12:21:09 PM »
@zipper

Thanks, going by that I think its maybe a 33mhz cpu. The picture isnt quite clear enough to be able to tell for sure, so I guess I wont know for sure until it arrives :)

@Franko

Thanks. Im really looking forward to it. Ive had expanded a1200's before, but for the last few years since my bppc+grex1200 based system died I'd mostly been using amithlon for my "classic" amiga fix, which has no custom chipsets. Have always liked programming them (custom chipset) and had used one form of uae or another for those years, but while it's an impressive piece of software I just never felt comfortable with it (Im like that with "virtual machines" for any os though to be honest and like to have dedicated machines whenever possible). About a month ago I was lucky enough to get ahold of a reasonably priced a1200 and have been having a blast ever since :)

I must admit that I (so far) appear more inclined to get off my butt with some programming for amiga with an actual classic. I think it's in part 'cos when resources are limited I cant just throw hardware at a problem and am more inclined to try to redeem the "problem" myself  :)
Im hoping 2011, with my "new" a1200 might finally be the year I pull my finger out with some of my amiga projects Ive been putting off for years  :)
« Last Edit: February 04, 2011, 03:01:11 PM by fishy_fiz »
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Near as I can tell this is where I write something under the guise of being innocuous, but really its a pot shot at another persons/peoples choice of Amiga based systems. Unfortunately only I cant see how transparent and petty it makes me look.
 

Offline alexh

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Re: 68040 cpu markings
« Reply #4 on: February 04, 2011, 02:22:20 PM »
Apollo 1240 cards can be upgraded to 1260 cards for a reasonable price.

You need an MC68060RC50 (preferably an E41J mask), a voltage regulator board, an upgraded EEPROM, a new Oscillator and a 68060 socket fitted. Optional 2nd SIMM socket for 64Mbytes.

The finished card usually sells for about €300

Certainly something to consider for the future. I think Cosmos in France was doing the upgrades as was stachu100 in Poland.
« Last Edit: February 04, 2011, 02:25:10 PM by alexh »
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Offline tone007

68040 cpu markings
« Reply #5 on: February 04, 2011, 02:24:05 PM »
I overclocked an Apollo 25MHz card to 32MHz, it was nice and stable.  I did have a heatsink and fan on the processor, though.
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Offline fishy_fizTopic starter

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Re: 68040 cpu markings
« Reply #6 on: February 04, 2011, 02:58:39 PM »
Quote from: alexh;612408
Apollo 1240 cards can be upgraded to 1260 cards for a reasonable price.

You need an MC68060RC50 (preferably an E41J mask), a voltage regulator board, an upgraded EEPROM, a new Oscillator and a 68060 socket fitted. Optional 2nd SIMM socket for 64Mbytes.

The finished card usually sells for about €300

Certainly something to consider for the future. I think Cosmos in France was doing the upgrades as was stachu100 in Poland.


Yeah, that's something I'm definately interested in doing sometime in the nearish future. The particular board Im getting already has a socket fitted although Im not really sure what other modifications. The ebay seller appears to be more of a general "retro" dealer, and as such didnt provide much more than general info.
How much does an '060 cpu usually go for there days anyway?
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Near as I can tell this is where I write something under the guise of being innocuous, but really its a pot shot at another persons/peoples choice of Amiga based systems. Unfortunately only I cant see how transparent and petty it makes me look.
 

Offline alexh

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Re: 68040 cpu markings
« Reply #7 on: February 05, 2011, 09:43:29 AM »
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Offline VingtTrois

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Re: 68040 cpu markings
« Reply #8 on: February 05, 2011, 10:11:15 AM »
Quote from: alexh;612408
Apollo 1240 cards can be upgraded to 1260 cards for a reasonable price.

You need an MC68060RC50 (preferably an E41J mask), a voltage regulator board, an upgraded EEPROM, a new Oscillator and a 68060 socket fitted. Optional 2nd SIMM socket for 64Mbytes.

The finished card usually sells for about €300

Certainly something to consider for the future. I think Cosmos in France was doing the upgrades as was stachu100 in Poland.


And perhaps AMIGA CENTER (France)...
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Offline zipper

Re: 68040 cpu markings
« Reply #9 on: February 05, 2011, 11:04:49 AM »
Our member PG was specialized to do the upgrades - but he hasn't written anything here since late 2009.
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