Questions tagged [power-supply]
A power supply is an electronic device that supplies electric power to another device, such as a computer, monitor or printer. This is achieved by converting wall power (or mains power) to a lower voltage, and in most cases also from AC to DC. Most power supplies also provide protection from overload, power surges and other potentially problematic or hazardous conditions.
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how many amps on the PSU 12v rail is used by a motherboard and CPU?
How many amps on the 12V rail does the motherboard, CPU, and RAM use? And how to find out for specific boards? I imagine this would be a reasonably common question people have when designing a new ...
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How do I diagnose a hard Linux crash?
I have a home-built Linux server (Ubuntu 12.04.5 LTS, Intel i5-3570K, 8GB RAM) acting primarily as a mail and web server. It operates in console mode only (no GUI). I will SSH to it now and then, ...
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How much power is enough?
These days whenever you try to buy/build a PC, you constantly see demands and suggestions for large power supplies. 400W seems to be for low-end machines, Real Men need at least 500W, but if you ...
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Under Linux, how can I tell the real power consumed by a usb device
I have a freecom external USB HDD, which wont run from a powered hub, so I imagined it was something to do with the powered hub not supplying enough power. However when I connect it directly to a ...
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Best Way to Protect A Desktop From Power Surge/Dirty Power?
What is the best way to protect a computer desktop from a power surge/dirty power? Would a power strip be adequate? (I don't have much space in my desk.)
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Is it safe to use the PSU from a Sun Ultra 40 to build a modern system?
I'm doing a new build in a Sun Ultra 40 case.
In that case, there's a built-in 1000W power supply.
Is it safe / ok to use that if I know that my draw would be fine with a new 650W power supply (a i7 ...
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Will a PSU rate-limit device's power consumption?
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I have a Computer with a 450w rated PSU. I assume ~80 efficiency which brings me down to 360 for the computer. My video card (gtx 1060) max consumption is somewhere between 120-134
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Does the fan go on the bottom or top of the power supply?
Which direction should I install the corsair tx 750 psu?
Should the fan go on the bottom or top?
It seems the fan should be on the bottom of the case correct?
Update
I have a antec P183 case, so ...
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Connect a 2.5" (laptop hard disk) SATA hard disk to Desktop PC
Can I connect a laptop SATA hard disk to Desktop PC? Do I have to use some adapters or I can just plug in SATA power connector and SATA data cable like my Desktop hard disk is connected?
I noticed ...
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Can I use different power supply on my laptop?
Battery on my laptop is 4%, I don't have original power supply at the moment and I have some work to do.
Is it safe to ask a friend to give me his power supply from another type of laptop?
What ...
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Does a laptop recharger waste electricity when the laptop is not connected?
I have a laptop with a recharger (also known as an AC adapter), this is how it looks like:
When I disconnect my laptop from the charger, does it (the charger) still consume (waste) electricity?
EDIT:
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USB-C Chargers: Is it safe to charge a phone with a laptop's power supply?
I have an HP Chromebook and a Nexus 6P smartphone, and both of them use USB-C connections for charging. When I plug the Chromebook into the Nexus's charging cable, it works fine and I just get a ...
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Can computer power supplies use North American 240V (hot-hot-ground)?
Simple question: Most computer power supplies are auto-sensing between 110V/120V and 220V/240V. This begs the question, can they use 240V in North America i.e. connected to both hots (red and black)?
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5V/12V load balance of 3.5'' HDD?
I have a home-built NAS where I currently have ten 3.5'' SATA HDDs. The PSU I use there is rated for 140W on 5V rail and 480W on 12V rail. Since the 3.5'' HDDs use both 12V and 5V voltages, I would ...
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I plugged an 8-pin EPS (CPU) cable into the GPU's PCI-E port. Is it damaged?
The r9 290x I wanted to use needs 16 pins, my PSU which I thought had 1 PCI-E 6 + 2, 1 PCI-E 6 and 1 PCI-E 8-pin setups, actually had a second 8-pin EPS cable.
I don't currently have something to ...
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