18 March 2010, 01:23 | #41 |
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Location: Hampshire
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CPU type (MC) or (XC) is irrelevant......it should work with both if capable.
My Apollo runs at 80mhz with either the MC68060rc50 or the XC68060rc60 that i keep for a spare CPU, although the XC variant runs a lot hotter. CLKGen is set to CLK, CLK jumper is set to 040 which is half ram speed. This is my 3rd Apollo and i seriously doubt the integrity of your 060 CPU ('s) THis reply was aimed at 8bitbubsy and his apollo problems...apologies for the thread hijack...i'm new and will learn ..... Last edited by Philophus; 18 March 2010 at 01:46. |
18 March 2010, 07:15 | #42 | |
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Quote:
I moved the CLKEN resistor from GND to CLK and now it runs at 50 and 66 mhz with the clock jumper set to 040. it does run quite hot tho' and crashes after about 2-2½ hour of uptime. This is at 50 mhz running in a standard a 1200 case. The CPU is a rev. 6 cpu. Can anyone tell me if it is normal behavior for some rev. 6 cpu's to run that hot? or is it a general problem running 060's in a standard a1200 case? |
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18 March 2010, 07:33 | #43 | |
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Back in the day when these things were new, the only possible issue was not having enough power from the std a1200 power supply, in terms of heat the '060's supposedly did not need a fan or even heat sink. But these things are not new anymore so its anybodys guess what is the heat tolerance of a 15 year old plus chip that has clocked possibly thousands of hours of who knows what sort of use. Personally i consider myself lucky that I have a working, fast accelerator that lets me run all my software at more or less as fast as most 68k Amiga's got. Without it, my A1200 is next to useless-is it worth pushing the board for a 20% speed gain, where if you REALLY need to run Amiga software as fast as possible then emulation would do at least as well? Just my opinion, I know how much I missed my Amiga hobby when the '040 died. |
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18 March 2010, 09:20 | #44 | |
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A heatsink might help with the crashing, if that doesn't cure it I would try adding juice to the floppy port and replace the motherboard caps (esp if you have a C= manufactured board). Then it should be rock-solid. |
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