Cable select?? Primary IDE channel

[gene1938]

I know what master/slave settings are for BUT how about "cable select" its on a soyo 6BB MB device is a LS120 on Primary IDE channel as "slave" Thanks for answering another dumb question---gene

[jad1097]

Sorry thought I knew until I thought about it again. Just ignore this.



[This message has been edited by jad1097 (edited 01-19-2000).]

[BEOR999]

This is IDE’s way of providing Plug and Play functionality. In order for this to work, a cable select cable must be used. A cable select cable is an IDE cable that has line 28 open (cut) between the two device connectors.

Jumpering a device as master or slave overrides the cable select cable. This means that you could use a cable select cable without actually using cable select to determine master or slave.This may, however, cause problems and is not recommended.
If you use the cable select jumper to set a device’s setting, you must have a cable select cable.

If there is only one device on the IDE cable, check to make sure it is on the end connector (1) not the middle connector (0) to allow for proper termination. Incorrect configuration can also cause the device not to be recognized by the system.

If there are two devices on a channel, check to be sure that one is configured as master, and the other slave. If both are master or both slave, one device will not be recognized by the system.

Since termination cannot be changed on an IDE device, sometimes the only way to fix a problem is to change the cabling arrangement. With two devices on the cable, try switching them around.

With erratic behavior, isolate one device on the channel to see if the other device that was on the channel is causing problems. (Be sure to put it on the end connector (1)!)

//CONTROLLER//--//DEVICE-0//--//DEVICE-1//

if the device-0 is jumpered to be a master, then the device-1 must be set to slave or cable select. If it is set to cable select, it will automatically configure itself as a slave. Due to the fact that line-28 is cut and therefore has no grounding.

If Device 0 is : (a)
Then Device 1 must be: (b)
(a)master (b)slave
(a)master (b)cable select
(a)slave (b) master
(a)cable select (b)cable select
(a)cable (b)select slave

Does that make sence ?





[This message has been edited by BEOR999 (edited 01-19-2000).]

[tlwhite76]

Is there any real advantage to cable select?

[gene1938]

THANKS for the info-I have one of my HD as master, slave is LS120.I've had the HD on the middle plug-in(easier to wire), Now I know it should be on the end plug(1) the Ls has been giving me trouble. I should move both HDs to the same cable.
gene

[This message has been edited by gene1938 (edited 01-19-2000).]

[BEOR999]

no advantage, in my opinion, just sometimes easier to setup the multiple devices....