Date: Mon, 2 Dec 2019 13:23:17 -0600 From: Karl Denninger <karl@denninger.net> To: freebsd-hardware@freebsd.org Subject: Intel Coffee Lake Xeons and boards - Rec's / experiences? Message-ID: <c907ac7d-7f90-c75d-1829-0edc8562d767@denninger.net>
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This is a cryptographically signed message in MIME format. --------------ms020602030708050104040306 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Anyone used them yet? E21xx/21xxG series?=C2=A0 Board with a built-in IPKVM is preferred (of th= ose 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.=C2=A0 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!=C2=A0 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.=C2=A0 But both have= SSDs; the desktop's is nVME, the server box is 2.5" SATA, but a half-dozen of them.=C2=A0 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! --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms020602030708050104040306 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC DdgwggagMIIEiKADAgECAhMA5EiKghDOXrvfxYxjITXYDdhIMA0GCSqGSIb3DQEBCwUAMIGL MQswCQYDVQQGEwJVUzEQMA4GA1UECAwHRmxvcmlkYTESMBAGA1UEBwwJTmljZXZpbGxlMRkw FwYDVQQKDBBDdWRhIFN5c3RlbXMgTExDMRgwFgYDVQQLDA9DdWRhIFN5c3RlbXMgQ0ExITAf BgNVBAMMGEN1ZGEgU3lzdGVtcyBMTEMgMjAxNyBDQTAeFw0xNzA4MTcxNjQyMTdaFw0yNzA4 MTUxNjQyMTdaMHsxCzAJBgNVBAYTAlVTMRAwDgYDVQQIDAdGbG9yaWRhMRkwFwYDVQQKDBBD dWRhIFN5c3RlbXMgTExDMRgwFgYDVQQLDA9DdWRhIFN5c3RlbXMgQ0ExJTAjBgNVBAMMHEN1 ZGEgU3lzdGVtcyBMTEMgMjAxNyBJbnQgQ0EwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIK 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