SCSI

[Justin]

are these any good?

Amiga Buddha Flash IDE Controller Zorro board



it says it has 3.5mb/s transfer rate how does that compare to a A2000 scsi card?

 

[rkauer]

Good, yes.

But why you want a Buddha which is a dual IDE controller?

 

[Justin]

i don't know if i want to use scsi or ide? which one is best? buhda or scsi?

cheers, JuvUK

 

[TheCorfiot]

Justin

My advice is go for a GVP HC+8 , I can even upgrade the firmware for you & it carries cheap easy to get 1MB 30Pin SIMMS..
A very stable & well performing card...

It will be better than the onboard IDE....

However my friend, I would really suggest we get your A4000 up & running on IDE first before shelling out anymore cash...:nod:

TC

 

[Justin]

lol you mean it's not up and running yet?

 

[TheCorfiot]

lol you mean it's not up and running yet?

Mate, The CPU card has materialised, however the Mobo is still Vapourware !!!!!!!!

TC

 

[Justin]

lol you mean it's not up and running yet?

Mate, The CPU card has materialised, however the Mobo is still Vapourware !!!!!!!!

TC

rofl, is it a SharkPPC mobo?

 

[Kin Hell]

Sorry for slight thread hijacking but I've got one question regarding the DMA in SCSI.
I've got an A4000 with an A3640 Rev. 3.0 and Retina BLT Z3 RTG card. I also have a GVP HC+8 that I'd like to install into my A4000. I also have Buster Rev. 9. Having read the BBOAH about the DMA issues with those revisions, am I going to face a heap of problems, if I install the GVP card into my A4000?

A Rev. 9 Buster should be fine with DMA & a ZORRO II based DMA Compliant SCSI Card. If you use a ZORRO III based SCSI card or a processor card with SCSI III such as the CSMKIII/PPC cards, you will require Rev. 11 buster to avoid DMA hanging the system periodically.

Kin

 

[protek]

Sorry for slight thread hijacking but I've got one question regarding the DMA in SCSI.
I've got an A4000 with an A3640 Rev. 3.0 and Retina BLT Z3 RTG card. I also have a GVP HC+8 that I'd like to install into my A4000. I also have Buster Rev. 9. Having read the BBOAH about the DMA issues with those revisions, am I going to face a heap of problems, if I install the GVP card into my A4000?

A Rev. 9 Buster should be fine with DMA & a ZORRO II based DMA Compliant SCSI Card. If you use a ZORRO III based SCSI card or a processor card with SCSI III such as the CSMKIII/PPC cards, you will require Rev. 11 buster to avoid DMA hanging the system periodically.

Kin

So, in order to take the full advantage of a possible Cyberstorm accelerator, I'd have to rework a new Buster into my A4000...

 

[Kin Hell]

No m8.

You will only need to rework the Buster to an 11 if you want to use a DMA based ZORRO III card in you A4KD.
If you use a ZORRO II DMA based card in your A4KD, Buster 9 should be fine.

Some SCSI controllers did not utilise DMA & these have a bit of a CPU hit for it. Go for DMA support everytime when you can. :nod:

Kin

 

[rkauer]

...But when you have a Deneb and a Zorro III SCSI card at the same time

 

[Kin Hell]

...But when you have a Deneb and a Zorro III SCSI card at the same time

....throw the Deneb away, buy an X-surf & replace the USB with a clockport version. :nod:

Kin

 

[rkauer]

^ :rofl3

Hmm...:?

No.

 

[Zetr0]

doens't the DNEB have Z3 DMA?

Surely this would be lightningly faster over the Z2 polled USB on the XSurf.

indeed, Z3 DMA is possible.

 

[rkauer]

Deneb is Zorro3 selectable, it does DMA and is USB 2.0+. Subway is just 2.0 protocol, but speed is 1.1.

 

[Kin Hell]

doens't the DNEB have Z3 DMA?

Surely this would be lightningly faster over the Z2 polled USB on the XSurf.

indeed, Z3 DMA is possible.

Deneb is Zorro3 selectable, it does DMA and is USB 2.0+. Subway is just 2.0 protocol, but speed is 1.1.

Meaning it's bolloX. - DMA will crash your Amiga with SCSI.

Clockport everytime.

Kin

 

[Zetr0]

Have you had one of these card Kinnie?

I notice on amiga.resource.cx that its states (DMA possible) as opposed to out right available.

This need more scrutiny me thinkies =D

 

[Harrison]

As some others have suggested, just get a GVP HC+8 and it will work fine. I've got one in my A4000 and it has always worked perfectly. It normally has a Zip100, CD-Rom and external HDD connected to it and all work perfectly.

 

[Kin Hell]

The Deneb does not take advantage of DMA without some serious issues. In a nut shell, If you are running Fast SCSI, Syncronous transfers usually lock up.

The GVP HC+8 probably has no conflict as it is not a ZORRO III card. I never got to try that combo. :|

Kin