BTW.... if anyone is interested. Drop in idle (not doing much) power is about 40 watts (!!); that is, 1.90 amps to 1.50. That's quite material.
And it's a LOT faster too.... Now is 40 watts material? I dunno. Depends on what you pay for power. Maybe $3/month? But... you also get much faster, so what's that worth? Hmmm.... I think it's a good deal. On 12/2/2019 13:23, Karl Denninger wrote: > Anyone used them yet? > > E21xx/21xxG series? Board with a built-in IPKVM is preferred (of those > there are only a few) and I'm particularly interested in idle power > consumption and such. > > I currently run a few X5650s (hex-core and HT) and while they run well > they're power-hungry monsters, and not just the chip. The various > frontside and interface chips on the Supermicro boards pull a crap-ton > of power too and generate their fair share of heat; best I've been able > to manage with power management (powerd), a HBA (LSI SAS-2116) and a > mixture of SSDs and spinning rust in the cabinet (with those not mounted > spun down) is right around 2A @ 120V, so figure ~250 watts -- and that's > IDLING. > > Put load on it and it really ramps (I've seen well into the 300s), but > that's ok if I'm asking it to work. > > The reason this looks interesting is that I have a Coffee Lake > **desktop** processor and Mobo for it (not suitable for a server as no > ECC support, of course) that idles WITH a Nvidia PCIe graphics card in > the box (GTX-1060, 6Gb) running 4 LED monitors connected to it at ~50-60 > watts! Of course if I start up a video render its power consumption > goes through the roof, but again, when NOT working hard it sips power -- > and that's with a PCI/e video card in there. > > Now it's probably true that ~6-7 watts, more or less, is per-spinning > rust drive in the box that is not spun down (those consume almost > nothing) and there's 5 of those in the server box while the desktop has > just one, and that one is spun down most of the time. But both have > SSDs; the desktop's is nVME, the server box is 2.5" SATA, but a > half-dozen of them. Nonetheless they don't pull much power compared > against spinning disks, even when active. > > While the cost in dollars the power isn't huge in the summer I pay twice > since I have to run the A/C more to pull the heat out of the room, > obviously, and in the winter resistance heating, while "free", is > expensive on a comparative basis. > > What I'm curious about is if anyone has experience with these under > FreeBSD yet and what sort of power consumption you're seeing with a > "mostly idle" system, whether they're stable -- and what combination of > CPU/Board/RAM you're using..... or should I stick with the Kaby Lake > E3-v6 CPUs and boards for them? > > Thanks! > -- Karl Denninger [email protected] <mailto:[email protected]> /The Market Ticker/ /[S/MIME encrypted email preferred]/
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