A4000T owners group

[bozzerbigd]

How does everyone deal with the fragile front door while the machine is in frequent use? The front door must be opened each time to power up the machine, or to insert or remove a CD or floppy disk. Leave the door open all the time and it's sure to get broken off at some point, no matter how careful you are. Where is the hardware reset button?

I can see why so many were broken or damaged over the years. For now I have the entire front panel off so I don't damage it while I am installing upgrades and imaging hundreds of floppy disks.

It is more likely to be snapped off while in use rather than closing/opening it. It needs great care opening and closing and never leave it wide open next to a swivel chair!

 

[kewatsdop]

Hi all, I'm late to this thread, but just saying that I'm also a proud owner of the A4000T tower (and actually of The Two Towers).

Both fully equipped with many expansions. They are fun to expand, due to so much space!

Happy to have noticed this thread, and I'm watching it now to read about y'all experiences.

 

[RetroPanic]

@RetroPanic - I have this habit of looking at the slots and trying to figure out what's inside. It passes time. Some mysterious stuff back there.

@Buzzfuzz - stickers won't do. Also, I don't know why I have a preference for the Commodore Amiga logo. It some type of compulsion I think. A while ago I asked if someone knew how to put the floppy/power-on screen and text in 3.1.4/3.2 back to the way it was in the 3.1 kickstart with the checkmark/Commodore copyright, etc.

What do you see

 

[JHanna]

Hello!

Now that we're all here

How are you guys connecting modern drives to your A4000T SCSI port?

Anyone ever get one of those Acard adapters working?

 

[bdb]

Hello!

Now that we're all here

How are you guys connecting modern drives to your A4000T SCSI port?

Anyone ever get one of those Acard adapters working?

There are 2 different SCSI adapters to connect an IDE (or SATA) drive, and both have worked fine; you will get a better transfer rate using the SCSI 3 of the CyberstormPPC or MK III. When they were functional, my 10 & 15K Atlas SCSI drives were giving me ~35+ MB/s, and I achieved the same with good IDE HDDs and SATA SSDs.

 

[bozzerbigd]

Hello!

Now that we're all here

How are you guys connecting modern drives to your A4000T SCSI port?

Anyone ever get one of those Acard adapters working?

A SCSI2SD V6. No complaints.

 

[bozzerbigd]

It's a shame the SCSI2SD V6 is no longer available! It operates exactly like a regular drive as far as the user is concerned. I like that is actually a formatted "disk" rather than an image.

 

[Amigaz]

Hello!

Now that we're all here

How are you guys connecting modern drives to your A4000T SCSI port?

Anyone ever get one of those Acard adapters working?

I am happily using a ZuluSCSI RP2040 with great success. Getting around 7-8 MB/s speedwise

 

[JHanna]

The SD card option is a non starter as I need reliability.

Gone for the Acard IDE to SCSI adapter, will report back results when it arrives.

 

[Amigaz]

The SD card option is a non starter as I need reliability.

Gone for the Acard IDE to SCSI adapter, will report back results when it arrives.

It is reliable since the Amiga doesn't write to the hdd in any extent

But the Acard option is also excellent but they are harder to find nowdays. I am using the UW SCSI -> SATA variant on my CS MKIII in my A4000D and the SCSI-2 -> IDE variant in one of my retro PC's

 

[JHanna]

It is reliable since the Amiga doesn't write to the hdd in any extent

I do a lot of writing to hard disk with making ISO image files and hard disk recording etc.

Plus the speeds with SD cards seem to be really slow.

 

[Amigaz]

I do a lot of writing to hard disk with making ISO image files and hard disk recording etc.

Plus the speeds with SD cards seem to be really slow.

Remember that the theoretical speed of the A4000T SCSI is only 10MB/s and the speeds I am getting with my ZuluSCSI RP2040 (7-8MB/s) is excellent .. it is not the SD card that is the bottleneck

 

[JHanna]

Remember that the theoretical speed of the A4000T SCSI is only 10MB/s and the speeds I am getting with my ZuluSCSI RP2040 (7-8MB/s) is excellent .. it is not the SD card that is the bottleneck

All the reviews I read say the write speed was about 2MB/sec. No good at all.

 

[Amigaz]

All the reviews I read say the write speed was about 2MB/sec. No good at all.

Well, don't buy a ZuluSCSI if you believe that review is still valid.

 

[JHanna]

Well, don't buy a ZuluSCSI if you believe that review is still valid.

I already told you I'm not buying one for the reasons I stated.

 

[bozzerbigd]

I already told you I'm not buying one for the reasons I stated.

The SCSI2SD V6 is closer to 10MB/s

 

[JHanna]

The SCSI2SD V6 is closer to 10MB/s

Writing?

 

[bozzerbigd]

Writing?

This is good research:

SCSI2SD v6 performance report

The host: a R5K/180 Indy. Note: the Indy and scsi2sd required a terminator on the external scsi port. I don't normally leave one there, but the system would hang and crash without it. The adapter: SCSI2SD v6. SCSI2 turned on. Parity turned on. Set to 10MB/sync. 2GB allocated in the...

forums.sgi.sh

 

[utukku]

I'm presently working on my scsi system, using a Zuluscsi with fast scsi on I get over 7MB/S with fast scsi off I get 4MB/S. Same if I use bluescsi card.

 

[fgh]

I’m using a BlueSCSI v2 and a Yamaha SCSI-IDE on my 4000T. They both get 7-8MB reads. I don’t remember the write speed, it’s usually much less important on Amiga.

As mentioned, performance of SD cards - also with same speed ratings - vary greatly.
(Raspberry Pi crowd has measured many of them thoroughly for OS use)

Bozzerbigd: BlueSCSI and ZuluSCSI can be used in full drive mode like the SCSI2SD, it’s just not the default mode