Primary Secondary and SCSI

Resnik

Member
Jan 21, 2001
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Help me Folks!!

I building a Athlon Machine with SCSI U2W LVD HDD and NO IDE HardDisk.I have IDE dvd and IDE CD-RW.

My questions are
1. Where to Connect IDE DVD and CD-RW on motherboard(A7M266). Primary Controller or Secondary Controller ??

2. I am using AHA-2940U2W with 68 to 80b Pin Adapter in between HDD and SCSI controller. The 68 to 80 Pin Adapter also has power + Jumper settings for SCSI ID. Do I need to set jumper settings for both HDD and 68to80 pin adapter?

Thanks in advance
 

shathal

Golden Member
May 4, 2001
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Few things:

General rules of IDE:

Primary IDE-controller is for HDD's.
Secondary IDE-controller is for CD-ROM/Writers & DVD.

Do that :).

Re: SCSI:
In general I would advocate against the use of adapters, but so be it. Urm - you must have one REALLY odd SCA drive if you need to configure it's SCSI-ID. The whole point of SCA (a.k.a. hotplug) is that the drives get "told" their SCSI-ID's by the hotswap backplanes they get slotted in to. So, you should just set it up on the adapter.

I think that's about all the questions answered :D.
 

flyers1

Golden Member
Feb 7, 2001
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Resnik,

1. Setup the both the CDRW and DVD as masters, one on the primary controller, the other on the secondary. Doesn't really matter which is which. The benefit there is that only one IDE device can use the bus at a time on each controller. You'll get the max throughput this way.

2. I think you only need to jumper one or the other but I'm not positive on that. You may want to check the docs on the HDD and/or the adapter.

Hope that helps...
 

Vegito

Diamond Member
Oct 16, 1999
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You can put HD on a secondary and boot off that, I believe almost all new mobo has the ability to boot from any controller, master or slave.

You can connect each of the drive as master of each channel since you dont have any IDE HDDs

SCA adapter are not the greatest, but as Shathal said, if u need it, gotta use it.
 

Resnik

Member
Jan 21, 2001
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So Is there a way I can get SCSI controller with 80 pin (u2w)?
What do you mean by not greatest. do I loose speed?