Questions tagged [power]
Electrical power is essential to the operation of any computer and any of its components or peripherals.
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PC won't start & hearing some weird noise from psu power socket
My pc won't start, no lights at all, as if it's not receiving any power.
And when I re-fitting the cable in my psu, I keep hearing this
in its socket
I forgot the model & brand of some of the ...
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How to calculate the combined current of all USB peripherals
I recently purchased a (non-powered) USB 3.0 data hub with four ports.
When I had a cursory glance at the documentation that came with it, I saw it says connected devices should not exceed a combined ...
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Dell laptop having issues with charging. Recognises charger and starts charging automatically and then doesn't recoginse charger and won't charge
I have a 7 year old dell vostro and this issue arose suddenly when one day I noticed that my laptop was lagging significantly. I went to the task manager to see the issue and in the performance tab ...
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USB C charging on Dell Inspiron laptop: OnePlus 65W phone charger
I have a Dell Inspiron laptop with a USB C port. The normal charging is 65W adapter via the Dell power (charging port). If I connect this to my OnePlus phone charger which is also 65W somehow it does ...
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Win 11: What performance characteristics does the "power mode" setting change
(1) In Windows 11 there's a new settings item System -> Power & Battery, which under Power mode gives 3 choices: "Best Power efficiency", "Balanced", and "Best ...
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Best practice with NUT in multi server, multi PSU, multi UPS setup?
what is the common practice in powering and configuring multiple servers with multiple UPS when each server has two PSU?
Let's say I have 3 racks, each with it's own UPS and set of servers with two ...
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My computer runs fine on inverter power but can't turn on from off state. Will using an UPS between computer and inverter fix the issue?
A 900 watt sine wave inverter (with battery) is connected to mains. The PSU of my computer is 1000 watts. When there is power outage, my computer runs perfectly fine. But if it is already off, I can't ...
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Power supply problems
I recently had a laptop that would not boot a range of things.
It would not boot the existing installation of windows for the SSD.
It would not boot Ubuntu from a USB.
It would not boot the OEM ...
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How to get Quadro RTX 6000 working in Dell EMC 8440 chassis?
I need to install and power the (circa 2018) Quadro RTX 6000 (QR6) GPUs in a Dell EMC 8440. The Dell 8440 uses the "Special 14 Pin to 8 Pin PCIe Cable" for GPUs, but because the QR6 is a ...
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Make Windows 11 sleep instead of shutdown during power outage
Just upgraded to windows 11 and noticed that during a power outage the PC shuts down. With windows 10 the PC would sleep (or hibernate) instead of shut down and when the power was on again I had all ...
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How do base and turbo frequencies affect core utilization in multi-core CPUs?
I'm trying to understand the relationship between base and turbo frequencies in multi-core CPUs, specifically regarding core utilization. My CPU has a base frequency of 2.1 GHz and a turbo frequency ...
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CPU Power throttling when gaming
I have a windows 11 laptop. When I stress test my CPU it draws 28 watt constantly. But when I open up a game it only draws 15 watts. Because of that I get bottle necked on CPU. My CPU frame time is ...
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Windows 11-intermittent interruption on peripherals/lights
This happens at seemingly random intervals, but I usually notice it while gaming, not so much with other tasks.
First, I notice my mouse, headset and my mic stop working, then all the lights on my PC ...
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Dell does not power down when long-pressing power button?
I have a Dell Precision 7770. I performed a UEFI (BIOS) update. It hasn't done anything since then. In the Technical Guidebook it says,
Power button with optional finger print reader
Press to turn ...
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Dell laptop not turning on and charging suddenly in middle of my usage
I'm using dell inspiron laptop without bezel and lcd screen stands in support of lcd back cover only. I typically use my laptop sideways on bed so I could lay down and watch.
This time while I'm using ...
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