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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: amigadave on May 28, 2009, 07:44:16 PM
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Is anyone using one or more LVD/SE 68pin SCSI Hard Drives with their CyberStorm PPC accelerator card controller?
I bought such a drive from someone here on the forums, but can't get it to work and now I am wondering if any LVD/SE drives CAN be used with the CSPPC controller?
If the answer is yes, I will buy another LVD/SE drive and just assume that the first one I got is the problem.
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Yes, as far they can be put into SE mode. I think I have two of them, the other one did need some manual setting to work, automatic didn't work.
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Yes. LVD is backward compatible.
I use LVD drive with my CSPPC.
Remember that:
- LVD drives DO NOT has terminator - so the HDD-end of SCSI chain has to be terminated my external terminator (LVD/SE type)
- CSPPC doesn`t has terminator either so you have to use another one on CSPPC-end of the SCSI chain also.
On the LVD HDD there is often a juper "SE mode" which force the drive to work in SE mode (at least it`s the case on IBM LVD SCSI HDD). It may help.
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Thanks for the replies. I think my problem might be that I don't have the right kind of terminators, even though they are 68pin Active terminators, they are not marked LVD/SE terminators.
Anyone know where I can find the right kind of terminators to get my LVD/SE drive working. My goal is to remove any 50pin devices from the SCSI chain and allow the 68pin hard drive run at its fastest speed. I have a 68pin CDROM drive, as I have read that adding any 50pin devices slows the SCSI chain so all devices run at the slower SCSI-1 speed, or something like that.
I have enabled the SE jumper on the drive, so the only thing left that could be stopping it from working is the terminators at each end of the cable are not the right kind, or the drive itself is bad.
Edit: The jumpers on my Ultra320/LVD/SE Maxtor Atlas 10k III-320 73.4GB drive are:
TERMPWR
NC
NO WIDE
STAGGER SPIN
WR PROTECT
BUSY LED
NC
FORCE SE
DELAY SPIN
FAULT LED
SCSI ID (0)
SCSI ID (1)
SCSI ID (2)
SCSI ID (3)
Which jumpers do you think I need to close/activate on this drive to get it to work with my CSPPC controller?
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Hmmm
ever since the original 4g UW died on my PPC controller I never bothered replacing it... This is an interesting topic, when I get my OS4 classic hooked up again I'll take a look at this...
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I'm using a 36GB Maxtor LVD drive on my 4000 and it works flawlessly. I can't remember what I jumpered, though. I think LVD/SE should auto-detect anyway, but Force SE jumpered is probably wise.
Make sure you have TermPwr enabled on one of the disks, active terminators either end, and a good SE SCSI cable (don't know if an LVD cable will work). Then set the ID, and go into the CSPPC's SCSI menu by holding Escape while booting, and make sure everything is set correctly there for the unit the disk is on.
Keep trying, though - as long as your SCSI chip is working it should be ok as it's pretty similar to what I'm running OS4.0 on.
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Which jumpers do you think I need to close/activate
Try to activate: FORCE SE and TERMPWR (and set proper SCSI ID)
If you have 68pin CDROM drive, it should has built-in terminator - mine Plextor UltraPleX Wide has one - activate it (and also enable "parity" jumper on the CD-ROM).
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Hello,
I'm looking for a cable or adapter to connect my LVD HDD (63mm connector) to classic internal 50pins SCSI connector ?
http://img38.imageshack.us/img38/5075/lvdhddconnectors.jpg
Thanks you for helping me !
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That connector is called SCA, SCA-80 or SCA-2, adapters are easily available through ebay and such.
LVD is NOT compatible to Single Ended per se. But 95%+ of the devices are LVD/SE, thus SE compatible. When using them as SE drives, you need to provide proper termination. Do NOT use an LVD terminator as it won't work in SE mode. Any (active) SE terminator will do, LVD/SE ones, too. Make sure that at least one device provides termpower to the bus.
I've never had a reason to force LVD/SE drives to SE by jumper. They very reliably detect the SE bus (all return pins are GND), so any SE device connected to an LVD bus will limit all devices to SE mode. (edit: slightly rephrased)
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Thanks you for detail.
About my LVD HDD, I've these jumpers:
http://img32.imageshack.us/img32/6407/dsc05206a.jpg
About adapter, I've found this on EBAY:
http://img3.imageshack.us/img3/7987/adapter1l.jpg
Is it good for me to connect LVD HDD to my AMIGA internal SCSI with my Z3FASTLANE) ?
So you think it'll be ok without SE jumper ?
And if I use 2 LVD HDD (yes I've 1x IBM and 1x SEAGATE), the last will be to SE Mode by jumper. Right ?
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The adapter looks fine.
Set the ID jumpers on the SCA adapter, more practical that way. I wouldn't use the Force SE jumper in case I wanted to reuse the drive on LVD later, otherwise it could throw the whole bus to SE mode. You don't need it, honestly.
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I have a CSMK3 (same SCSI) and a newer 15k Maxtor Atlas. It would not boot either. I tried many different configurations of drive jumpers, SCSI chain order and terminators, and CS boot menu (ESC) configurations. I have the latest flash for the CSMK3 and AmigaOS 3.9 also. I finally found one way to make it work. I put another SCSI device at the SCSI address before it. In other words...
SCSI address 1 Compaq HD (with active termination, physically at end of cable)
SCSI address 2 Maxtor Atlas 15k HD (with boot partition)
Normally, I would want the HD with the boot partition at address 0 and the small hard drive could be removed and replaced with an active terminator, but this did not boot. I still get a guru the first time I turn on my Amiga but after it reboots I have a fast and stable Amiga. I get about 30MB/s sustained. The synchronous flag has to be set in the RDB or forced in the CSMK3 boot menu. If anyone has a better solution, I would like to hear about it.