New around here? Register your SA Forums Account here!

You can: log in, read the tech support FAQ, or request your lost password. This dumb message (and those ads) will appear on every screen until you register! Get rid of this crap by registering your own SA Forums Account and joining roughly 150,000 Goons, for the one-time price of $10! We charge money because it costs us money per month for bills alone, and since we don't believe in shady internet advertising, we try to make the money back through forum registrations.
 
  • Post
  • Reply
eames
May 9, 2009

Eletriarnation posted:

I can add that my Dell T20 micro-ATX E3-1225 v3/C226 (~i5-4460) system with 4x4GB ECC DDR3 DIMMs, a SATA SSD and a 3.5" SATA HDD running on a 280W 80+ Bronze PSU idles at around 30W in CentOS 7.

Compared to my i7-920 system, which even swapped with an underclocked L5520 @0.9V and a fanless 80+ Platinum PSU used 70W idle, it's a lot more attractive as a home server. I currently use a Braswell N3150 system that takes about 20W with two DDR3L DIMMs and an SSD and while I haven't found much to beat that target and retain normal PC I/O connectivity options, if I ever find myself needing more speed I'm happy to know that Haswell is so efficient.

I wish that there were consumer boards available with full mobile chips soldered-in, kind of like something between a NUC and a Xeon D system. The Braswell system that I use is a good starter NAS but if it had slots for multiple expansion cards and a little bit faster CPU then it would feel more perfect for the purpose. Coming from the other direction, I don't imagine that a desktop i3 idles that much higher than a mobile dual-core but without the option to undervolt on most boards there's no way to optimize it for 24/7 use.

Dell T20 are amazing, I can't stop raving about them. Mine has 16GB ECC DDR3L, a SATA SSD, three 8TB drives and a GTX1060-6GB and idles at 30W with the drives spun down. The GPU is passed through to a Win 10 VM for steam in-home streaming — plays most games at 1440p/Ultra/60fps and saves me from buying a dedicated gaming desktop/laptop for my casual gaming.

With the GPU overclocked, this machine machine pulls ~200W at the wall. 230W when the drives spin up during Furmark + Prime.
According to the PSU data sheet that's roughly 60% of the maximum load (350W) and fairly close to its max efficiency.

I believe the PSU itself could handle an undervolted 1080 just fine, that'd only be 30W more (~80% of rated load).
Would I recommend doing that? No, of course not, but I don't understand why people recommend 650W (DC) PSUs for 170W (DC) systems.

Adbot
ADBOT LOVES YOU

eames
May 9, 2009

big crush on Chad OMG posted:

I like the case but €230 is pants on head crazy.

I thought so too, so I checked eBay:

http://m.ebay.com/itm/Dan-A4-SFX-Mini-ITX-PC-Case-Black-NEW-SEALED-/222524524846

:psyduck:

eames
May 9, 2009

It's accelerating too, Z370 boards will be outdated and left without an upgrade path only 9 months from now. The IPC and frequency advantage over Ryzen allows them to pull stuff like that.

eames
May 9, 2009

Z390 (2H/2018) will do everything Z370 does plus likely Ice Lake compatibility. There's also a good chance that 8C CFL-S will only run on Z390.

eames
May 9, 2009

I‘d like to point out that it is possible to buy high end components and throttle their power consumption to reduce heat and noise and gain efficiency. For example a 1080ti throttled to 65% power output would be very quiet and likely still perform better than a stock 1080.

CPUs behave similarly, you could limit a 5GHz 9900k to 95W TDP and despite the throttling it would outperform a 9600k in most of not all situations while remaining quiet.

The downside of all this is that you gain efficiency at the cost of performance and money.
If money is not issue that can make sense, if you are looking for best value for money not so much.

eames
May 9, 2009

Happy_Misanthrope posted:

That looks like poo poo

marketing dept will blame bad sales numbers on the lack of RGB LEDs

eames
May 9, 2009

The tiny fans aren't optimal but I have a feeling you'd never hear them unless your intentionally loop a NVMe drive benchmark. :shrug:

Adbot
ADBOT LOVES YOU

eames
May 9, 2009

The a single 120mm exhausting at the top isn’t going to cut it unless you underclock and undervolt those components very significantly to make them more power efficient. From what I can tell that single fan wouldn’t even pull air from the bottom because of the vent in the side panel near the CPU.

If I had to make this case work I’d fit 2-3 slim 120mm intake fans to the bottom of the case for overall positive pressure and either close the side panel vent or add another very slim 120mm to the side panel above the CPU as an intake. In theory you could achieve the same thing with custom made ducts.

e: it looks like I was wrong and those side panel vents are on the other side for the PSU. In that case I’d flip the top 120mm around to act as an intake while still having 2-3 slim intake fans on the bottom. That way it would exhaust through the front via positive pressure and the whole thing has a chance at working... but probably not great. The whole thing looks like it was designed for 50W HTPC, not 350W high end components. I wasted a lot of time writing what grindcore meggido wrote in one sentence. :shobon:

eames fucked around with this message at 10:10 on Nov 2, 2019

  • 1
  • 2
  • 3
  • 4
  • 5
  • Post
  • Reply