@ToxicFrog We don't get either of those, I had my UPS mainly to keep my modem from resetting every time the washing machine tripped the RCD
Our ISP had a network-side "training" system to "adapt" to line instability so every time the washing machine tripped the power, the resultant modem reset would register as line instability and cause our speed to get reduced.
We had a whole one real power cut in the space of 5 years, and my UPS did keep my modem and router running throughout (and my desktop PC in standby), was fun to get a line sync speed of about 40Mbps faster than usual because the crosstalk of everyone else's modem was gone.
We usually have at least one short power outage a year, although the worst lasted multiple days and happened when someone drove their car into the power box outside our house
The DACA debate is a big part of this shutdown - with both sides having hardline stances on this matter, I fear the government will not be open for business for months to come.
I don't recall the federal government having ever been so polarized.
I did put an APC surge suppressor in the power path. From what I've read, brief power drops don't in and of themselves cause hardware damage but power anomalies can occur before and after the outage which can harm hardware.
mine has a 5-bar load meter; with an idle GTX 1080 in a web browser it only lights up 1 out of 5 beeps on the meter.... with a game running it goes up to 2
0-1 load meter provides about 25-30 minutes of power; each additional beep drops that by 5-7 minutes
@bwDraco nope, mine's basically silent except for a very small fan, and it's right under my desk on the opposite side of my body from my PC
it makes a LOUD "click!" when going from exactly zero load (like when my PC and monitor are completely off) to turning them on, like it has a large transformer or physical switch, idk
but it's stable for long periods of time so
box makes very little heat unless the batteries are discharging, and that should be rare
it also has several outlets that act like a nicely surge suppressed power strip but without draining the battery if the power goes off... I use that for things that need good quality surge suppression, but can go off if I lose power
we get a baseline average of, like, just a flicker that's long enough to barely notice it with lightbulbs but would probably reset my PC if not UPS'ed, about once per month
and outages lasting seconds to minutes a couple times a year
about 6-8 years ago (ish) we had an outage that basically lasted from early afternoon, through rush hour, all the way until nightfall, when someone had apparently hit a telephone pole at high speed on a nearby main road and damaged the power lines connected to it
that act also stopped the flow of traffic through a very critical traffic light for filing people into the communities after work, which caused such a traffic jam, that I was in my mom's car, and I jumped out of the car (after idling in place on a highway for about 20 minutes), walked across the street to a pizza place, purchased a pizza, waited for them to bake it, then took it back to the car
The SMC1500C seems to be a step up from the old SMC1500 with remote monitoring capability and an improved inverter with higher efficiency and therefore longer runtime.
I wonder if it's worth spending this much money, though...
(we've never had hardware damage or major data loss occur due to power failures; surge suppressors provide protection against spikes which tend to occur before and after interruptions)
@bwDraco I spent about half as much on a unit that has the same VA and wattage capabilities and also has monitoring via USB
I just did a self-test, hadn't done one in two years so it was ripe for a test
drained the battery 15% instantly -- not sure why that is -- maybe the original fuel gauge reading was faulty? I heard the relay switch as it disconnected from the mains, but my stuff continued working, then it reconnected and I heard the relay again
or maybe it'd only give me about a minute of coverage if I lost power? O.o because the test only lasted about 15 seconds
probably a good idea to discharge the batteries a little once in a while
Was thinking about runtime. The CyberPower unit you have may not provide adequate runtime under gaming load to let me gracefully save and exit and shut down the system (the GTX 1080 Ti is a huge power hog under full load).
@bwDraco you'd have to recognize the outage then immediately quit your game -- I think even under full load you'd get 3 minutes, then once you idle the GPU that would go up to about 10 minutes at least
get an external addon battery pack (some UPSes have those) if you want longer runtime, but you're not gonna be continuing your game during an outage on a GTX 1080 Ti
the way to game during a power outage is to have a GTX 1060 laptop with a decent onboard battery, plus something like this: anker.com/deals/powerhouse2
that battery plus the Powerhouse is a full day of gaming on a laptop 1060, probably, or several days of IGP web browsing on a thin and light like an LG Gram or an IGP variant of a Dell XPS
I have the CP1500PFCLCD and my maximum load is probably 400W (including monitor and GTX 1080) which is 10 minutes of runtime... double that if not gaming
9/8 = 1.125 = about 12.5% higher capacity unless rounding error (on Cyberpower's side, Duracell's side, or both) is being really unfair, at which point it could be nearly the same energy content in both
> No digitally created wave can be a true mathematically curved analog wave. But the number of digital steps used to create the wave can be great enough that the electronics used in even the highest efficiency computer power supplies are unable to distinguish them from an analog wave. The total harmonic distortion of the output on battery is under 2% which means the output of the UPS is closer to a mathematically ideal analog wave than the powercoming out most peoples walls.
These units were created specifically for the needs of computer users with Active PFC power supplies. We put PFC in …
> The total harmonic distortion of the output on battery is under 2% which means the output of the UPS is closer to a mathematically ideal analog wave than the powercoming out most peoples walls.
are they saying that power delivered to your house gets rectified digitally from DC with a stepped digital sine wave?
I want an oscilloscope now
I thought conventional power delivery is that the frequency of the spinning turbine at 60 or 50 Hz in the power plant generates an exact analog sine waveform that then gets synchronized exactly through the remaining power grid, with no DC conversion steps, just voltage transformation until it gets to standard line voltage (110-120V)
the discharge graph is the same for the SMC1500C and the original SMC1500... probably because the batteries are the same, it just has an improved inverter
ok, so for the C (here), now their THD rating is "Less than 5%", whereas with the non-C, it's "5%"
less than 5% could be 4.99% though
I don't see any THD stats here so I guess the engineer who responded on Amazon either did his own measurements and they didn't want to publish them officially or they just forgot, or he was bluffing
maybe his statement of 2% was to scare APC and other competitors, idk
honestly, I could "downgrade" to the 860i and get a better efficiency curve, a couple years of incremental power electronics improvements, and still be waaaaaaay under the maximum power budget of the PSU because I have determined I shall never SLI/Crossfire again (SLI/CF is basically dead anyway)
it'd be a net upgrade for efficiency (even though a downgrade in maximum output) because adding the "i" is their more intelligent, newer gen PSU than the non-i one
are we really close to the limits of physics (using materials that don't cost millions of dollars per gram, of course :P) in terms of how good of a job we can do with efficiency of power electronics, now?
or maybe we already knew about how to do the advanced stuff our state-of-the-art PSUs do now, back in 2000, but we didn't have manufacturing or raw materials to mass produce 'em
1200W is overkill for any system using a single graphics card. I went with 850W because that provides plenty of headroom without making things too expensive. (PSUs start to get expensive once you hit 1000W.)
> No digitally created wave can be a true mathematically curved analog wave. But the number of digital steps used to create the wave can be great enough that the electronics used in even the highest efficiency computer power supplies are unable to distinguish them from an analog wave. The total harmonic distortion of the output on battery is under 2% which means the output of the UPS is closer to a mathematically ideal analog wave than the powercoming out most peoples walls.
These units were created specifically for the needs of computer users with Active PFC power supplies. We put PFC in …
> Seasonic’s engineers have implemented a new design feature, where instead of cables; the back panel and the PCB (Printed Circuit Board) are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.
It also means higher efficiency.
(referring to the connection between the modular connector board and the main board)
It's very, very rare for a high-end PSU to fail these days.
AIUI Corsair's AXi supplies are in-house designs manufactured by Flextronics.
With Seasonic and FSP, all supplies are designed and manufactured in-house.
(actually, Andyson, too, but that's a much more obscure brand)
This also applies to Super Flower, but they don't market supplies under their own brand in North America. (Their Leadex supplies, which EVGA rebrands, are known for having superb power quality at every price point, giving everyone else a run for their money until Seasonic came out with the Prime series.)
Seasonic claims that the fan won't spin up until you hit 45% or so load. On my machine, I need 300-400W of sustained load (depending on ambient temperature, higher on cooler days) to trigger the fan.
I suppose that if you took the same approach with part selection and used digital regulation, you could get even higher efficiency, but the result would be priced out of reach of most.
Digital control makes it easier to achieve higher efficiency and tighter regulation but it's expensive.
the inverter in a PFC UPS is "digital" in the sense that it has a very high frequency transistor that switches thousands of times per second to generate the A/C-like sine wave (A/C enough that most stuff can't tell the difference)
FSP's using DSP control in their Twins redundant power supply, but that's mainly to get a pair of 500W or 700W modules to fit inside the constraints of the ATX form factor.
Yeah, but I'm thinking of links that I close a lot of questions as dupes of. If I get bored (I'm off work for the next few days) I will post a meta with the links in ...
Having said that how does that tag actually help anybody? I can't imagine new users looking at that tag and reading all the questions ...
Funny thing happened today: I upgraded two of my pilot Windows 10 1703 to 1709. I left notes for two of the users telling them they might experience something slightly different and they shouldn't panic.
user226528
Those who received the note panicked; those who didn't receive any note did not panic from the Windows behavior.
user226528
The second group actually said it was nice of Windows to say "Hi" after a while.
@JourneymanGeek You're correct. Both meanings exist in Portuguese, but only when added with the modifiers. Just a "piloto" (pilot) is a driver of airplanes or race cars.
