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The Amiga Future 167 was released on the March 5th.

The Amiga Future 167 was released on the March 5th.
The Amiga Future 167 was released on the March 5th.

The Amiga Future 167 was released on the March 5th.
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Check4GB



Check if your HD setup is 4GB-ready

Details

This download was added on 22.01.2008 - 17:27 by AndreasM  • Last download 12.11.2023 - 16:16

Requires

Amiga


How this works

Amiga Computers with Kickstart 3.1 and below cannot handle hard drives greater than 4GB. Although there are many solutions and even OS3.5+ claim to be compatible with large hard drives, it is sometimes difficult to be sure.

Background

The standard interface between a device driver (e.g. scsi.device) and a file system (e.g. FastFileSystem) addresses blocks on a drive by a 32 bit address. With 32 bits you can address 2^32 bytes = 4GB.

There are three solutions to expand this border:

- TD64 is a 64 bit command set invented by Phase5.
- NSD is a new style to communicate with a device driver. It also adds
64 bit commands similar to TD64.
- Direct-SCSI is a method to send raw device commands directly to the
SCSI bus. Most IDE drivers understand and emulate these commands, too.

To bypass the 4GB border you need a device driver and a file system that both support the same command set out of the above.

File hash table

check4gb.lha [md5] c96713137613324e0e2f630f742a7195

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