Blizzard 1230/50 MKIV problem (Black Screen)

[patrik]

@EnyGmaTiK:

As the A600 powersupply only can supply 3A on the 5V rail, make sure to try without harddrive, extra diskdrive etc connected to get as much power as possible available for the accelerator.

(edit): Btw, the port is not designed to give any clicking sound when inserting the accelerator. The connector is of the type used for example in PCI-bus connectors which you can find on a normal PC-motherboard. Maybe if you insert it extremely fast it will make a sound when the circuitboard part on the A1200 motherboard hits the bottom of the connector on the accelerator, but thats about it.


/Patrik

[patrik]

@EnyGmaTiK:

20W is even less than the stock A1200 powersupply I am afraid. Can you check how much current it gives on the 5V rail? I am pretty sure the stock A1200 powersupply always was a 25W model, atleast everyone I have seen have been. When I got a Blizzard1230IV/50 (without the 68882 FPU) for my A1200, it was enough to just power the A1200 with the Blizzard1230IV/50 with a 4MB simm, but nothing more. If I added a harddrive it just kept guruing (flashing the powerled) when I powered it up.


/Patrik

[patrik]

@EnyGmaTiK:

There are two jumpers on the card. One for the ramspeed and one for MapROM. Make sure the MapROM feature is disabled as you havent got a SIMM installed. There should be instructions for the jumpers printed on the card.


/Patrik