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Documentation about the Vampire hardware

500V2+ Not Booting Any More Only Green Led

Pierre Chastain

Posts 5
28 Nov 2018 16:27


Hello!
My 500v2+ does not work any more. It used to boot up fine with a blue led, not it only gives me a green led.  I have tried it in 2 machines an A1000 and and A500 rev 5.  No recapping has been done. I have used the blaster to update the core in an attempt to make it work again.  the flashing was successful but no change in booting. I feel like the cpu contacts are good. what can I do?  Please help!



Andy Hearn

Posts 374
28 Nov 2018 17:44


First things first, what do you get with the original cpu back in place?
Boot screen? Let’s rule out the a500 itself first


Pierre Chastain

Posts 5
28 Nov 2018 18:08


I get a boot screen.  The a500 (NTSC) works fine as does the a1000.


Andy Hearn

Posts 374
29 Nov 2018 17:32


ok good start.
placing the vampire back into the CPU socket, I have a rev5 A500 machine too, and had to bend some of the capacitors out of the way to seat it properly.
are any of these caps stopping the board from sitting nicely? I had to properly press the vamp down to get a good connection.

I had issues with my machine working for a bit, then after a little while, non-booting, black screen, etc etc. and ended up moving the board with a load of wires from the cpu socket to the bottom of the vamp, and ironicly, my machine has never been more stable.

we know the machine is "known good", and the vamp is "known-good" so the problem has to be putting the two things together?

with the vamp not working in either your A500 or A1000, i'd put the vamp into "not-sure" - as this to my mind, effectively rules out any PSU problems given that both have different PSU.



Vojin Vidanovic
(Needs Verification)
Posts 1916/ 1
30 Nov 2018 19:48


Pierre Chastain wrote:

  No recapping has been done. I have used the blaster to update the core in an attempt to make it work again.

Try core 2.5 or earlier, newer ones need recapping. It would be best to do recapping.


Pedro Manuel Lopes Torre

Posts 12
30 Nov 2018 20:00


Hi, i can vouch for Vojin Vidanovic said. I've a Vampire 500 V2+, that would not work with Core2.11 and after adding 2 Caps the machine and card works without a problem ( i.e. i'm using an Amiga 2000, although it was also tested with an Amiga 500 )

posts 6