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SirMaster 5 days ago

Really?

6.1 Electrical Characteristics

The maximum power requirements for the LSI SAS 9200-8i HBA under normal operation are as follows:

 PCIe 12.0 V = 0.74 A

 Power

— Nominal = 7.92 W

— Worst Case = 13.20 W

Seems like it uses just a little more than 1 large capacity HDD.

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M95D 5 days ago | parent [-]

It's 2-3 times more than the drives. All 8 HDDs consume 4W in sleep, and they sleep more than 80% of the time (all night, all day while I'm at work, they only start 2-3 hours in the evening).

	▲	SirMaster 5 days ago \| parent [-]
		I am pretty sure the card is not using 8+ watts when all the drives on it are idle... I can't believe people are worrying about something less than 10 watts. 10 watts in constant use for a whole year is like $12 at the average electricity cost in the US. I don't even let my HDDs sleep, the constant spin up and spin down and temperature cycle associated with puts way more wear and tear on them and would cause them to fail quicker and that is way more expensive to replace. I have 20 HDDs connected to one of these SAS2 controllers in my home server.