Sold 68060 rev. 1 marked as EC with a FPU with defects

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neocdtv

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Hello,
I have here a 68060 rev. 1 marked as EC, where the FPU has defects, meaning some calculations will be wrong, but in general it is working. Maybe 50Mhz was to much for the CPU during tests, maybe 40Mhz makes sense - not sure. What is sure what the CPU seems to work with 60Mhz and 65Mhz. Not sure if some body can use it. CPU looks like new, if pictures are needed please ask.

For the price I was thinking: 65Euro + Shipping

Payment with Paypal friends.

Regards
neocdtv
 
Can you make a screenshot of WhichAmiga?
This is from last testing, I won't be putting this CPU again into one of the card, because this CPU is really tight. The last time I've spent 30min to get it out from the socket, even when using a CPU puller.
 

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Do you run into problems if you run software that uses the FPU? Or have you never experienced that?
 
I had 3 of such CPUs, in 2 the FPU was working well i.e. demos run w/o visible artifacts. With this CPU if e.g. running TBL in the last scenes like
spider robot or fish robot, you would see here and there visible artifacts, so IMHO FPU is defective.
After this tests I "classified" the FPU as defective, because I could see the other EC CPUs don't produce such errors.
 
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