Amiga Processor Peripherals


CyberStorm MK2

> Company: Pahse 5 Digital Products, Germany
Date: 1996
Amiga: 3000, 4000
Interface: CPU slot
Autoconfig ID: 8512/25

Processor
68040 @ 40 MHz or 68060 @ 50 MHz
The 68040s are recycled from used Macs
The board is ready for 68060 @ 66 MHz

Memory
Four 72 pin SIMM sockets can accept 128 MB RAM
Supports 4, 8, 16, 32 MB SIMMs, 70 ns
Onboard logic maps any combinations of SIMMs into one contiguous block without the need of jumpers
Burst mode RAM access
Improved access to chip RAM using a write buffer
RAM access is 70 ns even with 60 ns SIMMs

Notes
Optional Fast SCSI 2 module – CyberSCSI Mk2
Does not fit mechanically into a desktop A3000
32 bit DMA engine – FAS216
Max 10 MB/s transfer speed
50 pin internal header
Autoboot capability
Requires the INT2 signal which is not present in the A3000’s CPU slot
The module itself is not equipped with termination resistors; they are placed on a separate PCB which houses the external 50 pin micro-D SCSI connector
This automatic resistor finds out on its own whether it is the last piece of equipment on the backbone and switches itself on if this is the case
supported by Linux and NetBSD

Flash ROM
contains the updatable CyberStorm firmware
needs update for the 66 MHz design
needs update for installing the SCSI module

Notes
CyberStorm 040 SN# B400506 – B400569 and CyberStorm 060 SN# B002827 – B003065 are affected by several DMA related problems due to a slight difference in the electrical specifications of certain parts caused by supplier change
symptoms:
SCSI units connected to the internal SCSI bus of the A3000(T) are not recognized while having RAM installed to the CyberStorm
does not work in the A4000T with RAM installed on the CyberStorm
in an A4000 with a Fastlane or a A4091 SCSI controller installed, peripherals connected to the SCSI bus are not recognized boards with these serial numbers had to be sent back to Phase5 for rework

Images

Amiga CyberStorm MK2 Front

Front: CyberStorm MK2 front view, rev 3

Amiga CyberStorm MK2 Back

Front: CyberStorm MK2 back view