Gadgetory

hey you're watching Jays two cents and chances are you're either building have built or plan to build another computer in the future and you're not quite sure on what size power supply to use so in order to try and arm you with the information you need when choosing the right power supply today we're going to take a look at how much wattage your system really uses under the different types of tasks that you can possibly throw at it and hopefully give you the information it takes to choose the right power supply now if you take a look behind me you see I've got my watt meter it's hooked up only to my tower so you're only measuring wattage and amp that come directly from the tower and anything within it plugged in directly to the wall so the only readings we're going to get are the tower and the tower only and I'm using a webcam here to capture the wattage and you can see here this is what the webcam is capturing it's kind of a bit light so I'm just going to use this make some shade and as you can see there is the watt meter and we'll put that up on the screen and we'll get some cool little dynamic views stuff going and as I'm waving my arms around like crazy now a lot of new builders tend to really get overzealous when it comes to their power supply and tend to get one that's actually too big it is possible to have too big of a power supply it's not like other things in life where there's you know the bigger the better a power supply if too big never reads its full efficiency state which means that you kind of get fluctuations in some of the power delivery and at the same time you don't want to undersized your power supply because you don't want to hit hit its maximum output because then you're going to get blue screens and shutdowns and other not so good stuff now I just want to briefly touch on what the 80 plus rating means I'm not going to go into depth on it I'm just going to let you know that the reason why most builders only recommend a B+ and above when it 80 plus bronze silver gold platinum and titanium power supplies is because what that saying is that at 100 percent load of the power supply unit you're getting at least eighty percent of that load turned into energy so what that means is on a thousand watt power supply you're getting at least 800 watts of the rated power to that system so it's very important that you actually size your power supply appropriate we're going to go ahead and look at the parts that are being used in my system my system has a lot of peripherals in it which can use and burn up a lot of power other than the processor in the motherboard I am using a 3770k overclock to four point seven gigahertz I am using a GTX 680 that's overclocked to twelve hundred and fifty megahertz I do have eight gigabytes to dims of 1866 RAM that's overclocked to 2100 I do have a water cooling loop in here that's using an MCP six by five variable speed pump set on speed three I have eleven eleven right one two three twelve Corsair fans in this system I have nine 120-millimeter fans and three 140 millimeter fans so there's a lot more fans in this system than the average builder would use and it's one of those things that people tend to throw out there is oh if you're going to use a lot of fans you've got to have a big power supply and we're going to debunk that myth right here in this video my motherboard is an as Roxy 77 OC formula and I do have two LED light strips in this all crammed into a 900 D case and the power supply that we're using for this system is the corsair ax 750 it's a 750 watt gold rated power supply so let's go ahead and run this thing through some tests and let's see just how much wattage we're actually using okay guys we're back we're taking a look at my desktop and as you can see we're idling right around 150 watt mark a little bit below that high 140 s and we jump up into the 150 s a little bit it tends to jump a little bit when you move your mouse because believe it or not moving your mouse does use your CPU it's going to take a look at Intel burn test it's a program I use to stress the CPU when I test over clocks we're go ahead and go from standard to maximum so we'll do maximum stress on the CPU just to see what happens with the wattage now as you can see here it jumped right up to about 212 watts 210 we're not gonna really let this run very long because it's not going to get any more strenuous than it already is in fact if it looks like it's doing anything let's say it's dropping a little bit so just a CPU stress test a hundred percent usage on the CPU we're looking at about 210 to 215 watts we'll go ahead and open up vally benchmark which is just a GPU store it puts the GPU at a hundred percent and as you can see we're sitting just over three hundred watts dropping down as low as two hundred and eighty but we are looking right around three hundred is the the sweet spot I saw 305 I think for a second there 304 301 and of course it's going to depend on the load on the CPA or the the GPU and what it's actually doing what kind of you know polygons it's rendering in this net now the CPU load though to keep in mind is only sitting at 11% 16 percent 14 percent it's junk it's really really low so what happens now when you take both CPU and GPU and you stress them at the same time let's go ahead and find out together okay now since we know that valid benchmark on its own doesn't stress the entire system enough because the CPU is not really used in the equation what we're going to do here is we're going to go ahead and run Valley benchmark in windowed mode and we're putting all the settings on maths its ultra we've got a text anti-aliasing it's at 1080p this is going to be a pretty decent stress for the GTX 680 what we're going to do while this is running is we're going to go ahead and bring up Cinebench to use the CPU at the same time so instead of being a stress test on the CPU it is going to be a load so we're gonna have a GPU load and a CPU load and as you can see right now before I start Cinebench we're at 290 watts all the way down to the high 270 low 280 Watts marked just with that but now once we hit run CPU on the Cinebench we are sitting right around 350 watts and if we look at the GPU usage on here somewhere can't even bring it up because it's being so stressed but based on the frame rates that we are getting here on my benchmark for the GPU we are definitely running it's running at 1,250 megahertz so we are stressing the system right now as hard as it possibly can and we're sitting right around 365 watts or so okay so now Cinebench is done and we drop down below 300 again let's go ahead and run Cinebench one more time just to put that stress on and check and see if we get the same kind of results here the GPU is currently sitting at 99% usage and Cinebench is currently running at 340 pernessa no bench percentage is running or we're sitting right about 345 to 350 watts so we'll go and shut off all this annoying stuff here there's a couple of interesting things that we just learned and we'll go ahead and talk about that now in the conclusion once I can get all this crap turned off actually before we do that why don't we go ahead and see realistically what battlefield 3 is using wattage wise okay so battlefield is currently running we're in the game here and as you can see we're only using a little over 300 watts what's interesting about this is the fact that our graphics card is overclocked so it's definitely putting us as much usage as it can to that graphics card now the voltage is locked at one point one volts on the graphics so it's not anything entirely major but you can see wattage wise here with a 3770k and a GTX 680 and water cooling and 12 fans and an SSD two hard drives LED strips the overclocked on everything we're only using a little over 300 watts while gaming okay guys so what did we learn today besides the fact that J has a big-ass zit on his face what we learned that for the most part a lot of people really tend to oversize their power supply units based on their knee now it's one thing to be future-proof and have room to add a second graphics card or even a third graphics card if that's the route you want to take you just have to know that in the meantime the less power you use of the maximum output of your power supply is just wasted money and wasted energy going into that power supply that's turning in to nothing a power supply wants to use as much energy and put out as much energy as it possibly can that's what's designed to do so the lower amount of energy you use in your power supply the less efficient it's going to be you're going to pay more to use that power supply really to do not what it's designed to do I think most people can get away with about a 600 to a 650 watt power supply and still have room in the future as Hardware progresses and needs more energy now what's interesting is most manufacturers when it comes to graphics cards and CPUs are really working on reducing the amount of power consumption in their power supply this also tells me that my 750 watt is not being used nearly as much as I thought it was I had been holding off going with a second 680 in my system because I didn't believe that my 750 was enough output and had enough Headroom left in it to add a second graphics card but as you saw we were only using about a hundred and fifty Watts extra power with the graphics card under load so that tells me I'm going to probably end up throwing a second 680 in this system somewhere in the near future now if you have any questions about power supplies or what the 80 plus rating means or any of that and plan on doing a more all-inclusive video with a cup when it comes to power supplies but before that I thought it was important to show you what it really looks like and how much power you're really truly using in your system and I think you may be surprised that even with all the extra peripherals in my system we're using a lot less power than even I thought we were using I hadn't done this test until now I shocked myself even I thought I was using some more over 500 watts not even close our guys have been jace to sense if you liked this video you know what to do share it with someone you think can learn from this information if you're looking on building your own computer this will help you in the future see you guys next time and as always see you in my next video you