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Old Jul 30, 2019, 12:22 PM   #1
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Och
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Default Rant about SATA and power

Just wanted to rant. With HDDs pretty much dead and SSDs requiring much less power, why can't they just revise SATA interface to carry enough power to supply SSD. It is super annoying having to run a SATA cable plus a power cable to the SSD.
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Old Jul 30, 2019, 01:27 PM   #2
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Just wanted to rant. With HDDs pretty much dead and SSDs requiring much less power, why can't they just revise SATA interface to carry enough power to supply SSD. It is super annoying having to run a SATA cable plus a power cable to the SSD.

SAS connectors have integrated power (and can be used for sata) but motherboards don't generally run that kind of connector, and most adapters from SATA<->SAS usually minimize the length of the molex power converter.


https://www.newegg.com/red-startech-...sPeg&gclsrc=ds


In theory they could make the power stubs the same length as the data cable and bundle them together, but don't think I've ever seen that.


That said, I think the industry is expecting NVME to take over, so no cabling anyway for the m.2 versions.


The "ssd device" types (2.5") have an integrated power I think.
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Old Jul 31, 2019, 12:40 AM   #3
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I think it's a little early to say HDDs are dead. Until you can get a 5TB+ SSD at a reasonable price, HDDs and SSDs still serve different needs.

NVME is nice, but they take up a lot of space because they connect to the motherboard and lie flat. I haven't looked, so maybe they are out there, but you'd need some type of cable connection if you wanted extra drives.
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Old Aug 3, 2019, 04:32 PM   #4
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Spinning rust can in some cases use less power than NVME or SSDs. I've got 2TB WD Reds that take up about 3-4W running, then there's the 970 Evo+ at 6W+ during load. Idle of course is way down on SSD/NVME but still you need to be able to carry at least 10W for those bursts or load cycles. I'm kinda scared how much those NVME drives and connections have to endure these days, that's a horribly hostile area compared to the chassis size of 2.5/3.5 where the case itself helped with cooling and you could mount it away from other heat sources... Like a GPU or CPU
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Old Aug 3, 2019, 07:26 PM   #5
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Spinning rust can in some cases use less power than NVME or SSDs. I've got 2TB WD Reds that take up about 3-4W running, then there's the 970 Evo+ at 6W+ during load. Idle of course is way down on SSD/NVME but still you need to be able to carry at least 10W for those bursts or load cycles. I'm kinda scared how much those NVME drives and connections have to endure these days, that's a horribly hostile area compared to the chassis size of 2.5/3.5 where the case itself helped with cooling and you could mount it away from other heat sources... Like a GPU or CPU
Does Nvme really use more power than HDD? It has higher peak power usage but the load is shorter than an HDD. Doesn't NVMe drive also transition in and out low power modes like a CPU?
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