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6
votes
1answer
86 views

Power Supply Units - Is The Watt the whole story? [closed]

I wanted to buy a new PSU I narrowed it down to 2 options : 1)Theres a PSU by Antec that costs 655 (NIS) which provides 900W. Now, Antec is a very well-known company and they make awesome products. ...
4
votes
2answers
6k views

How many watts do case fans generally use?

I'm deciding between a 500 watt PSU and a 600 watt PSU. I currently have a 460 watt PSU that powers everything but my dvd drive, spare hard drive, and 2 fans. I've determined 40 watts is enough to ...
3
votes
1answer
366 views

Overview of MIPS-per-watt?

I'm looking to buy a 'low energy' system for my home webserver. One of the main criteria is how much power such a system consumes while providing enough power to run the apps I would like to run. My ...
2
votes
3answers
3k views

What Is AVR Mode In UPS Software Management?

When UPS was disconnected from power source and 25W desk lamp was connected to it, all was normal: But as soon as i have unplugged it and plugged in 95W fan, AVR "Normal" changed to up arrow: ...
2
votes
1answer
222 views

How much power will my 1200W 80+ Gold power supply provide to system components?

I am a bit confused over the terminology and efficiency rating of a power supply. For instance, under 100% load my 1200W 80+ Gold power supply is listed to operate close to 88% efficiency. What does ...
2
votes
2answers
190 views

pc watts usage comparison

If I have an atom pc drawing 40 watts at peak usage, does that really mean it is consuming less power than a 60 watt lightbulb? I'm no electrician, and I have no knowledge of how electricity is ...
1
vote
2answers
607 views

Laptop PSU died, replacement higher wattage?

I have an old laptop that I need to get a new power supply for, and it seems the only one I can find with the proper connector is 90W, rather than the 65W the original had. Would it be safe to use ...
0
votes
7answers
2k views

What is the minimum power supply wattage needed for a Pentium 2.4GHz system?

It looks like I've got a dead Antec True 330 power supply in an older desktop that has an Intel D845PESV motherboard, a Pentium 2.4GHz processor, 2 dvd/cd writers, 2 hard drives, and other typical ...
0
votes
1answer
350 views

Have a 40W power supply - will it power a laptop that needs 65W? (18.5v 3.5A (=65W))

Have a 40W power supply - will it power a laptop that needs 65W? I know that the basic calculation, voltage x amps = required wattage, so 18.5v x 3.5A =65W I realise that it should only draw the ...
0
votes
4answers
486 views

What size power supply would I need for a computer with these specifications?

I'm building a computer with the following specifications, but I'm not sure if my 430-watt power supply is sufficient. AMD Phenom x4 9600 Gigabyte MotherboardGA-MA785GM-US2H 4 gigs of OCZ 1 ...
0
votes
1answer
703 views

Maximum power draw for dell switches and servers?

I'm getting ready to move some equipment to a data center and they are asking for a maximum power draw that my equipment would have so that they can install the appropriate circuit breakers for my ...
0
votes
5answers
844 views

Is there a way to determine how much wattage your pc power supply is using?

I recently purchased a new HP Pavilion desktop. It only came with a 250 watt power supply. I installed a secondary hard drive and eventually may want to install a pci express video card but don't ...
0
votes
0answers
26 views

Mac Charger issue [closed]

So I have a Macbook purchased 3-4 years ago and for some reason I keep having to replace the charger. I am on the 5th one about to buy a 6th. I am buying the wrong cord. I notice a lot of the ...
-1
votes
2answers
226 views

Which part of the computer needs all the power from the PSU?

A couple years ago I was building a new Core 2 Quad system and after reading all the reviews was convinced that I would need at least a 400 watt power supply unit (PSU). I bought a 500W Antec ...