Blizzard 1230-IV is much better. I've had a GVP 1230+ II and my current Blizzard 1230-IV beats it in all important aspects.
Pros of Blizzard:
- Compatible with BlizKick
- Uses standard 72-pin SIMMS
- You can close the A1200 trapdoor nicely
- Can use up to 256MB of ram with the addition of the SCSI kit.
- Jumper set maprom
Cons of Blizzard:
- GVP SIMMS run at 50ns however are very expensive due to propriatery nature.
The GVP cad also makes it hard to close the trapdoor nicely unless you trim it down a bit (seriously!)
Also, it would be nice to know if GVP SCSI is DMA like Blizzard's?
