#FPU BLUES
5 messages in this thread
Calling all Amiga Technitions, I've got an A4000/30, I bought a 25Mhz
PLCC FPU, took the machine to pieces, installed it. Got myself into a
reboot loop with a yellow screen, I've checked the jumpers are set to
PLCC I even got hold of another FPU to check if the first was duff,
same result. Why the hell doesn't it work? with the FPU out of the
daughter board the machine performs normally… Errr Help! *IcE*
Paul,
Just to the right of the jumper on the '030 card that you set for
the PLCC mathco is another jumper you must set for the clock source
to the mathco. (assuming pin one of the mathco is at the top of the
board.) If you haven't provided an oscilator you must set that jumper
to the SYS setting. (ie.. on the two pins on the right) If this
jumper is missing, or set the wrong way, you will get the symptoms
you describe.
Dean
DKB Software
Thanx I'll try it out!
Paul,
usually, the yellow color indicates a system error detected by the CPU
before the GURU, or whatever they are calling it these days, is installed.
You might want to double check the orientation of the chip to make
sure that pin 1 is where it is supposed to be. You might also want
to check to make sure the chip is seated firmly.
Other than those suggestions, I can't help you.
Thanks for the attempt, I confirmed pin orientation, and seatind al least three
times… When I find out what the problem is I'll be sure to drop a line onto
the forum… Thanx again *IcE*