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Author Topic: New SCSI to Micro SD Interface Adapter  (Read 3304 times)

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Offline Oldsmobile_Mike

Re: New SCSI to Micro SD Interface Adapter
« on: February 18, 2016, 08:26:27 PM »
2.5Mb/sec is plenty for most general Amiga tasks.  What's the max speed of stock A3000 SCSI, anyway?
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos
 

Offline Oldsmobile_Mike

Re: New SCSI to Micro SD Interface Adapter
« Reply #1 on: February 18, 2016, 09:16:24 PM »
Quote from: tonyvdb;804223
It was equipped with a DMA SCSI II controller.

Yes, but that tells us nothing.  What is the max speed this controller is capable of?  I.e., if you say the card does 2.5MB/sec but the controller is only capable of 3MB/sec, it's not exactly creating much of a bottleneck, you know?

TL;DR.  I use a 2.5MB/sec media card reader with my A2000 and it works just fine.  Of course other people have 30MB/sec UW-SCSI controllers on their CSPPC boards and still complain about not enough speed.  It's all relative, and what you want to do with it.

I think the biggest bottleneck of that particular card though is that it's write speed is like only 128KB/sec, or something like that?  Someone else posted specs in the forum a month or so back...
« Last Edit: February 18, 2016, 09:20:06 PM by Oldsmobile_Mike »
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos