brwmogazos

Should I Enable Term Power On My 15k Atlas?

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Just got my new Atlas 15K to replace my cheetah 15K.3 and obviously this drive comes with loads of jumpers.

From a quick look i had theres only one i am interested in.

Term power.

Should i enable it?

My setup is as follows.

adaptec 29160N-------Maxtor Atlas 10K III ID=4------------Maxtor Atlas 15K ID=0(with active terminator)

so my final drive is the Atlas 15K

any other settings-jumpers i should be aware of?

Thanks in advance.

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Remember, only use two

terminators, one at each end of the SCSI bus. A lot of SCSI problems

can be traced to having internal (built-in) terminators enabled when

using external terminators at the same time.

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The term power setting from what i understood has to do with the power between all deviced in the scsi channel.Like equaling the power something like that.Its not the termination.

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TP - Termination Power

Pins 27-28 - Termination power ensures that there is a sufficient

power level along the entire SCSI bus. It is recommended

that the final device on the SCSI bus have the Termination

Power jumper installed. All devices in between the host and

final device typically have no jumper on Termination Power.

Note that Termination Power is not the same as on-board

termination, which this drive does not support.

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Yeah thats the one...

Thanks mate.

So should i enable it then guys since my config is...ADAPTER----Atlas 10KIII----Atlas 15K(terminator)

?

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Never used it in 5 yrs. Currently have Atlas 15K (2), 10K-IV (2) and 10K III (2) runing on 29160 and 39160. All my cables and terminators are active terminator's from Granite Digital.

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Most SCSI adapters provide Term Power by default (usually controllable in the BIOS for the card) and enabling the drive isn't necessary.

That being said, you can enable Term Power on all your HDDs with no negative effects. The worst that'll happen is "nothing."

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There has to be atleast one device providing termination power and there should be no more than 2 devices providing it. Going outside these bounds can cause problems.

Each device at the end of the SCSI chain should have term. power enabled. This will usually mean your controller and the last drive on the chain.

If you just have 1 or 2 drives you can get away without it on most controllers, but when you have alot of cable and alot of drives then you'll be required to have proper term power.

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