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Possible to connect eSATA La Cie external drive to SATA port on SC440 mobo?

I've got a 1tb La Cie external drive which has served me quite well for over a year. To date, I've used it via USB connection. However, as it also supports eSATA I thought I'd try using eSATA to increase transfer speed.

Not knowing much about eSATA vs SATA, I thought I could just get a SATA to eSATA adaptor, plug it into one of the 3 available SATA ports on my Dell SC440 mother board, adjust the setup on the server as necessary, and away I'd go. However, no dice. Didn't work. My Dell wouldn't recognize the La Cie drive, I guess, and it just hung during startup.

 So... am I trying to get my server to do something that's not really possible? I don't know much about hardware, so if somebody can advise me, that would be great. And... if my attempt to connect the La Cie via SATA to eSATA is ill-advised, please let me know. I'm trying to avoid having to buy yet another drive, but if I really have to -- in order to get better transfer speeds/performance -- please let me know.  Cheers!
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khaledf

unless your external drive has esata port you will not notice any increase in performance
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ASKER

The external drive has an esata port and came with an esata connector.
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Actually eSATA means external SATA so it does not differ much from standard SATA interface. Make sure that BIOS of your server has eSATA drive connection interface and the cables from drive to mobo are working well. This is the most often met problem with eSATA drives - bad cables. Last time I had to change 3 cables and only one of them worked for me.
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David
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Usually a sata to esata adapter works, but in the cases they don't I just add an esata card.
http://www.newegg.com/Product/Product.aspx?Item=N82E16815158093&cm_re=esata_controller-_-15-158-093-_-Product
OK. I just tried again. I've got 4 SATA ports on the mobo. Through trial and error, I figured out which port I was plugged into. Once I confirmed the port (based on the fact that I didn't get a message saying nothing was plugged into SATA02), I couldn't get past the system's attempt to access (?) the drive I had plugged in. The cursor just flashed and flashed and flashed. No complaint. No warning. No nothing. I've got one more sata -> esata adaptor I can try, but after that, maybe I have to look into a card.
It IS an external (powered) drive I'm trying to plug in. Could that be the problem?
Jeeze... the WHOLE time it was only a question of boot sequence! Points to you dlethe for passing on that possibility. All's well now! Everything's working perfectly. Thanks!