What is the best UPS for my use case under $400?

I been looking for a new UPS because mine keeps tripping its auto-shutoff whenever I run machine learning workloads or compile shaders on steam. I eventually had to just use taskset to restrict steam to just 36 virtual cores, which works but is inconvenient from a time perspective. (I have 88 virtual cores across 2 Xeon E5-2699v4 CPUs.)

I have a 1000 watt PSU, 3 completely different monitors, and a bunch of usb power bricks for things like fans and raspberry pi(s)

(if any of that helps)

So far the UPS I have found is this, but I am unsure as to whether I will be able to get the full range of features it offers on my system, I have also heard that the USB boards in some UPS units can actually destroy your computer.

So I was curious, what UPS can I buy (In North America) for under $400 that has enough power to run my setup so that it can auto shutdown? ( meaning it needs USB/Ethernet monitoring)

@40476 Hi, I use Vertiv devices here, have two 600W Liebert PSA5-1000MT120’s on multiple systems, supports Linux with Power Assist (installed via rpm) which includes a systemd service and connected over USB.

I have them set to three minutes and start shutting down, on my HP Z440 setup (700W PSU) that includes the three monitors… Load is only 17% at present

Had a few brownouts from lightning strikes close by, all worked fine.

Edit: I see a Vertiv Liebert PSA5 UPS - 1500VA 900W on Amazon.

VA is not equal to W.

I actually already have an APC unit but my issue with it, as outlined in the original post, is that my computer consumes too much power for the UPS I currently have and causes it to shut off. My current UPS also doesn’t have any communication features, and there are a bunch of units similar to it on the APC website so im not 100% sure which one I have.

@40476 That should be irrelevant as the battery and inverter should only activate on a power loss, on normal power it should be just consuming power and keeping the battery(ies) charged.

Sounds more like a faulty UPS…

You probably need to get an inline device to see the actual power consumption under load with out UPS to see what you actually need. The CPU’s are only 145W, what are your GPU’s rated at?

We have a another UPS unit on the property that does the same sort of thing (its smaller but does the same thing under a high load).

currently all I have is an AMD R9 390 (275 watts) that has serves me faithfully to this day, even if it shows its age a little in games. I do plan to get a NVIDIA Tesla K40c (245 watts) for AI workloads since I am unsure as to how to install AMD-pro drivers for my GPU (I didn’t see a Tumbleweed option on the website).

@40476 Weird… Kepler GPU’s are on the way out… I use a Tesla P4 here, added a fan to it, it’s Pascal so expect to last out until this time next year (10 year lifetime), hopefully… I also have a RTX4000 off eBay.

I have a K80 but I don’t have the connector to power it so I cant exactly use it, I have also been eyeing an fan & power adapter kit so I might just buy one tonight sinces its like $20 cheaper

That one you linked looks good, never heard of it but it’s worth a shot.

I use an APC BX1500M. It’s 1500VA, supports 900W and works fine with my Threadripper system (WRX80 Platform). I have a single GPU, a dozen or so hard drives, all ram slots full, and when I’m running maxed out even though I have a 1500W PSU and using apcaccess for status my LOADPCT has never been over 50.0. I use the USB connection and it works fine with openSUSE Tumbleweed. I actually have 4 of these in my house now as they’re under $200 on Amazon and I have all my my expensive electronics on this (computers, living room TV / Audio, router and my servers, etc.)

I’m sure others will do, and at 900W it’s a bit close to your 1000W PSU limit but it’s well under your budget (currently $179 on Amazon) might be worth a shot.

Power consumption can be much higher than 145W, especially with utilizing AVX2.
Possibly more powerful PSU is needed also.

– up to 543 W for single CPU platform E5-2697v4 without GPU?

I suggest to test workload without GPU or with simple GPU (less than 100 W).