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The motherboard has two esata ports. After plugging in five sata drives in various sequences, three would no longer spin up.

I am wondering if the electrical differences would be enough to short them out.

@moab The drives were mounted internally in the case, and powered by the internal PSU, and connected by a standard sata (not esata) cable. A number of different arrangements were tried, to try and identify the problem, so it isn't clear exactly what was plugged in where when they failed.

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You might consider editing you question to include exactly how you connected them and what type of cable was used, or enclosure. –  Moab Jul 6 '11 at 0:14

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Highly unlikely. More likely is static electricity toasting their circuit boards.

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That is good. I want to use these ports for standard sata drives, and was concerned I was breaking them by using them this way. –  Paul Jul 7 '11 at 2:37
    
I got 5 drives plug in on a computer also, along with four more plug into a RAID card. You should be ok. Just get a good surge protector. –  surfasb Jul 7 '11 at 4:36
    
Ooh. Are you up to RAID 10 with that setup? –  Paul Jul 7 '11 at 14:25
    
Nope. JBOD. Just a Bunch of Drives. –  surfasb Jul 7 '11 at 17:16

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