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Terminator or not

PostPosted: Mon Mar 03, 2008 10:18 am
by tonebucket
I bought an external hardrive the other day and it loaded without a terminator.

I decided to format the new hardrive and load samples on to it via my cd rom which works without a terminaoer as well.

I turned the sampler off and rebooted it a little later and the ultra scanned for the drives but decided it wouldn't mount them.( the drives spun when the ultra was searching for them)

Does anyone have any ideas what could of happened or what I need to do to load my drives????

The cd-rom is on scsi ID 1 and the new scsi drive is on ID 2.


The internal IDE drive is found when booting and also the floppy drive.

I contacted the seller of my new hardrive and I was told that the drive should work without a termininator does anyone have any ideas what the problem could be???? :cry: :cry:

PostPosted: Mon Mar 03, 2008 6:44 pm
by gcoudert
Does the sampler mount the CD-ROM or the external HD when only one is connected?

Gilles

PostPosted: Mon Mar 03, 2008 7:18 pm
by tonebucket
gcoudert wrote:Does the sampler mount the CD-ROM or the external HD when only one is connected?

Gilles



The sampler used to mount the CD-rom when used by itself, but it won't mount now when used by itself!!!!

PostPosted: Mon Mar 03, 2008 10:33 pm
by gcoudert
I presume you've tried different SCSI ID settings? According to my E4K manual (page 346), SCSI ID 1 is the ID of the internal HD but this could be different on your machine. Try IDs 2 to 5. Do you have another cable?

PostPosted: Tue Mar 04, 2008 10:25 am
by tonebucket
gcoudert wrote:I presume you've tried different SCSI ID settings? According to my E4K manual (page 346), SCSI ID 1 is the ID of the internal HD but this could be different on your machine. Try IDs 2 to 5. Do you have another cable?


I tried changing the scsi ID from 2-5 and the sampler reads through its scsi shannels when loading an pauses at the cd-rom ID for 5 seconds and still does not mount it!!!!!!!!!!!!!!!!!!! :cry: :cry:

I also tried a different cable.

PostPosted: Wed Mar 05, 2008 10:47 am
by tonebucket
gcoudert wrote:I presume you've tried different SCSI ID settings? According to my E4K manual (page 346), SCSI ID 1 is the ID of the internal HD but this could be different on your machine. Try IDs 2 to 5. Do you have another cable?


Are there any settings under MASTER-SCSI which might need changing other than the IDS????

I tried a terminator today on just the CD-rom drive and Hardrive seperatley but that didn't work, might the problem be the OS??

PostPosted: Wed Mar 05, 2008 3:57 pm
by tonebucket
gcoudert


I decided to reinstall the operating system and now my sampler is loading my scsi hardive with the terminator installed.
I tried my CD-rom separately but it wouldn't mount!!!!

PostPosted: Wed Mar 05, 2008 5:19 pm
by tonebucket
I just tried placing the cd-rom on the end of the scsi chain with the external hardive and it worked!!!! :grin: :grin:

Has anyone else run into this problem before??

PostPosted: Wed Mar 05, 2008 5:26 pm
by gcoudert
Weird! But I'm glad it works. I have never encountered this with my E4K + internal HD + external HD + CD-ROM. I can chain anything in any order; it always seems to work. Well done!

PostPosted: Sat Mar 08, 2008 9:06 pm
by kalide
your CDROM may have fixed internal termination - ie if you picked it up of ebay it may have the internal terminator actually set already (a jumper).

Also make sure you have the right setting for termination in the emu scsi setup - you can enable and disable termination in the sampler from the internal setup menus.

Termination is tricky to get right, and if its not set up, it may "seem" to work, but then there may be catastrophic glitches that will cause the bus to hang just when you want to save that magic perfect sample.

Most SCSI issues come from termination issues (i.e. no termination, wrong termination points - people often confuse the scsi ID"s 0 and 7 with the "end" of the bus. Termination has to be on the physical end of the entire end to end scsi cable.) SCSI may work on short cables when there is only the master, and one device. However this is not recommended as there's the possibility of the glitch.

The Sampler (as master) also needs to be told which other masters may be on the bus (e.g. a PC and Mac) and to ignore them when mounting to avoid a stuck "hello, I'm the scsi master" setup dialogue.

SCSI is a pain when compared to modern bus connections like firewire or USB, but when its set up right its rock solid.

M