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Zeviet

macrumors newbie
Original poster
Jan 9, 2009
14
0
I have a LaCie external hard drive and the power went bad, so I took the power from the other LaCie hard drive. The drives seems to work now, but the power configuration is different. I wanted to know if I should buy the same power supply, or I'm I going to be safe?

Original Power Supply

Input:100-240v
50-60Hz 1.5A
Output - 5V-----4.2A
12V---3A

MODEL NO:ACU057A-0512


Replaced with this Power Supply

Input:100-240v
50-60Hz 1.0A
Output - 5V-----2.0A 10W
12V---2.0 26.4W

MODEL NO:ACML-51

Model NO:ACU057A-0512

Thanks in advance, :)
Zevie
 
Umm.. It's not clear to me what you've done.

Are you now running two drives simultaneously off one power supply, (that has a lower wattage than then original)?

Or have you just switched the 4.2A with the 2.0A?

In either case using the lower wattage power supply may cause it to generate additional heat (as you are overloading it) which isn’t going to be good for your HD.

If the power supply fails while the drive is writing you are putting your data at risk.
 
Umm.. It's not clear to me what you've done.

Are you now running two drives simultaneously off one power supply, (that has a lower wattage than then original)?

Or have you just switched the 4.2A with the 2.0A?

In either case using the lower wattage power supply may cause it to generate additional heat (as you are overloading it) which isn’t going to be good for your HD.

If the power supply fails while the drive is writing you are putting your data at risk.

I'v replaced original power with another another LaCie power, (lower wattage). Do you think I can use the hard drive until I order a replacement power supply, or is that not recommend?:confused:
 
I don't think you'll see any immediate effects. Long-term it may cause either the power supply or the controller board to die before it otherwise would have.

I have 3 Lacie external HDDs and have had 2 power supplies go bad among them. At over $20 an issue, LaCie has about lost my future business. Both have happened a few months past the 12-month warranty.
 
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