Nope. Wide devices detect and fall back to narrow operation when connected to a narrow bus.
And floating upper byte data lines will not confuse a narrow controller which is unaware of them.
ZuluSCSI opinions?
- Thread starter JHanna
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And floating upper byte data lines will not confuse a narrow controller which is unaware of them.
JHanna
Active member
Did you set the drive to SE mode and turn off parity checking?
Edit: And check that it doesn’t have ‘motor start signal’ enabled (SCA hot swap feature to not start the drive until it’s told to by the host)
Edit 2:
For a SCSI device to start 16 bit transfers it must first negotiate 16bit capability with the host. Unless both are capable, transfers will be 8bit. (narrow)
Edit: And check that it doesn’t have ‘motor start signal’ enabled (SCA hot swap feature to not start the drive until it’s told to by the host)
Edit 2:
For a SCSI device to start 16 bit transfers it must first negotiate 16bit capability with the host. Unless both are capable, transfers will be 8bit. (narrow)
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Yes, but the AEC-7732 SCSI-to-SATA adapters are meant for optical SATA drives (CD/DVD/BD), NOT harddrives.
Useful only. if you want to attach a SATA CD/DVD ROM drive to your Amiga SCSI port.
What is said in ebay-offers for Acard bridge adapters is often confusing, so it is wise to download and read the original manual (e.g. from manualslib first, before you pay $250 or more for the wrong bridge adapter:
PDF-page 1:
1.1 Overview
AEC-7732U is an internal SCSI-to-SATA-II ODD Bridge,
However, even Acard's original package in this overpriced ebay-offer ($499) is confusing on its front side:
https://www.ebay.com/itm/295251940771
It says: "General purpose SCSI-to-SATA-bridge"
The only general purpose is, that Acard used the same package for 3 different adapter versions, while the one marked
with a red dot on package is the included one, the 7732U for optical drives in this case.
At least the back of the package brings clarity to us.
Only
AEC-7730A is for 3,5" SATA hard dirves (Ultra2 80MB/sec and Ultra 160 MB/sec)
The other 2 SCSI-to-SATA bridges are for 5,25" SATA optical drives only:
AEC-7730SA is Ultra2 SCSI (80 MB/sec( for 5,25" SATA ODD
AEC-7732U is Ultra2 SCSI, Ultra160 LVD (160 MB/sec), Ultra 320 LVD
(320 MB/sec), also for 5,25" SATA ODD
I have attached a package snapshot, so that we can easily compare features of Acard's SCSI-to-SATA bridge adapters even once the ebay-offer I mentioned has expired.
One thing, most of us would like to have surely is Acard's high performance SCSI to SATA II bridge
for 2,5" harddrives, the Acard ARS-2000SUP.
But this ebay-offer for $1500 is totally insane. You could buy a new computer for that.
ACARD ARS-2000SUP / 2160 /2160H / 2320 / 2320S | eBay
The ARS-2000SUP is a 3.5” Ultra SCSI-to-SATA HDD enclosure that converts your 2.5” SATA HDD to the Ultra SCSI interface by using the latest Ultra SCSI-to-SATA bridge chip from ACARD. • Built-in high-speed ACARD RISC microprocessor.
www.ebay.com
Conclusion: The Acard 7730A SCSI-to-SATA adapter is the right and formerly affordable one to use a
3.5" SATA HDD on your SCSI port. Now, it is has become rare and you can expect having to pay about $385.00
for it.
Attachments
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Interesting. Do you know if this IDSCE2i-E SCSI to IDE adapter is a universal one for both harddisks and CD/DVD drives?I found this in ebay but it's quite expensive, shop around or put up a wanted thread here on Amibay. I know they're probably getting more difficult to get hold of. SCSI to IDE was a lot more straightforward just like CF to IDE going to SATA or SD always gets more complicated.
IDSCE2i-E SCSI to IDE ADAPTER | eBay
An adapterconverting IDE data flow into SCSI bus, 2 available.www.ebay.co.uk
I have not heard of the brand i-Data yet and could not find a manual.
And I know from Acard SCSI-to-IDE bridges that not each type works with all types of IDE devices.
The Acard AEC-7722 SCSI-to IDE bridge. you can find between $30 an $40 on ebay now is the ODD type which you can only use to convert IDE CD/DVD drives to SCSI. You can use them to connect an IDE CD-ROM drive to your Amiga SCSI card. However, it is not perfect for IDE CD-R/RW writers.
Acard admits in the manual that their AEC-7722 will have issues with IDE CD-R/RW writers on SCSI port, because most PC recording software won't recognize converted IDE drives as SCSI ones properly, and will still try to send IDE commands to them. Thus, Acard recommends their own specialized SCSI host card for PC instead. However, I do not know, if the AEC-7722 would cause the same problem with Amiga CD-writing software such as MakeCD or BurnIt.
In addition, the Acard AEC-7722 SCSI-to-IDE adapter seems to confuse many ebay-sellers, so that they sometimes claim you can use it for IDE HDD storage devices. Actually, the 7722 manual covers more than one SCSI-to-IDE bridge adapter:
p. 20
AEC-7722 is particularly designed for DVD drive.
p. 24
3.4 Installing AEC-7726H/Q
3.4.1 3.5” HDD
AEC-7726H/Q is designed for ATA hard drive. Extra accessories aren’t needed
Acard's universal SCSI-to-IDE adapter for both optical (ODD) drives and HDD drives is the AEC-7720UW
Regarding SCSI-to-SATA there is no universal adapter available by Acard.
I have written some more about those SATA bridges elsewhere in this thread.
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JHanna
Active member
I think the only viable option is to hold Stephen Leary at ransom until he designs a 4-way Zorro III SATA board.
Derek.Stewart
Member
Hi
How does BlueSCSI V2 compare to ZuluSCSI?
How does BlueSCSI V2 compare to ZuluSCSI?
There are plenty of SCSI to SD options out there. Personally I use SCSI2SD drives and with many, there are updated versions of these cards. I find on SCSI2SD Revision 2021 being better. I get around 8MB/PS with these on Phase 5/DCE and WarpEngine setups. Both Zulu and BlueSCSI have been updated. As well to get to these speeds. Some now even boast wireless Networking. The SCSI2SD also has built in Termination.
