Gadgetory

so I found a power supply on Newegg 600 watts for $19.99 on new egg in fact it's still that price right now as are the recording date of this video so check it out if you're interested in learning more about it to find it from a company called Zalman who I'm sure uses some other company to actually manufacture then they just rebrand it take their sticker on there and say yes the Salomon power supplies would most actually do but I do not recommend you buy this particular power supply there are several reasons why but we're going to do something very unique in this video I'm going to throw this power supply into the twenty five hundred dollar PC behind me just to see what would happen so this is the box right here I haven't actually opened it yet had to look on my new I ordered history to remind myself what the name of the power supply actually was my trusty box opener here the I 373 50 K never fails next one box opener the switching power supplies vm 600 - le2 year warranty dual graphics card support and whatever that is I do not believe nope no 80 plus certification at all alright internet thing open and okay so we get a power cable that's nice and power supply and for psu sirs you know that these are just not premium at all when they come in silver which usually matches nothing in your PC build safe to keep things together then bubble wrap I mean it's not bad like now it's a typical cheap power supply but this one isn't rated for jack squat I'm a worried that it's going to end up taking another component in my expensive custom loop over there with it so tread lightly alright so we've got a standard 24 pin we have a let's see SATA - molex power connectors this one here is the 8 pin EPS cable for your CPU this one has its the molex molex I'm sorry SATA SATA and then one molex alright now this is interesting so we've got a single VGA cable running from the power supply it's kind of spliced here we've got two 8 pins which okay at least they have that support but I wonder how these will hold up when we plug in two 1080s also be mindful this came out of the box set to 230 volts which is good mostly for people in Europe I need to set this to 115 here in the states that would have been disastrous I'm not going to lie that looks pretty clean inside I can't speak specifically to the wiring configurations we might have some issues that might come up because this is so cheap and not rated by anybody worth mentioning but it's I don't know we'll just plug it in the computer and see what happens this is probably the most stressful thing I've ever done on the channel because if something does go wrong with the power supply it will likely take my entire PC with it that's a lot of money on the line that's ok though because science right alright so I've got the 24 pin and 8 pin eps extension still plugged in but they're they're wired directly into this power supply here and then I just have the 2a pins wired directly into the two gtx 280s this is the most uncomfortable thing ever okay power supply is there I'm going to turn it on I mean just to be frankly I don't expect the thing to just burn down it's not that cheap but I still don't advise carrying something this cheap with a system that's going to be using close to 600 watts already under load power supply is the loudest thing in the system but I expected that now we're going to run a game we're going to test GTA 5 just do the benchmark there loop it a couple times see if we can't get the power to car consumption to reach a point at which the power supply struggles and gets either extremely loud or just shuts off completely I expect 600 watts is actually it's actually okay for a system like this I mean you're going to be on the very very far right edge of your efficiency curve but I do think that this system here is probably only going to draw I would say around 5 550 from the wall I'm hearing some weird things coming from the pump I wonder if the pump is being fed a steady flow of power right why is my frame rate so low that's a a lot lower than it should be for dual GTX 1080s hear the sound so if you hear that there just some weird pauses in the pump that are concerning okay at this point while it looks like it is doing just fine I'm going to run a few stress tests simultaneously to basically load up power on both the graphics cards and the CPU so we'll run I 264 up top and then we'll run probably heaven benchmark down here at superpositions hardcore and I think that's not properly SOI config get so heaven benchmark so this one's getting loaded up and then I 264 extreme this is going to be interesting alright so we're going to start first with the graphics cards get those loaded up ready to go because it takes a bit of processing beforehand and then once this is good which there goes alright you can hear the coil whine now we will start the CPU test and here we go all right so power supply has been killing it for a little over ten minutes now and I must say it's actually not any louder violence a little louder than it was at idle which is actually pretty impressive for a power supply that's not even a d-plus certified it's doing okay considering the amount of horsepower we have packed into the chassis over there now I know it'll test it for a very long amount of time that's a separate issue a separate test but I do think that it passes the out of the box let's plug it into an expensive PC and see if it blows up test it didn't do that in fact it stayed quite cool and the fan was not very loud at all now the point I wanted to make regarding power supplies and efficiencies and ratings is this this is not rated by eighty plus that's what you would normally see on a power supply that semi efficiency ad plus 80 plus bronze silver gold platinum titanium use your way up there those power supplies are extremely efficient now but this one has no such rating period which means that it is not very efficient which means that basically you're going to be pulling much more from the wall than your computer will demand so a lot of that power will be converted to heat here which is not good it means it'll run a lot louder that's it in a nutshell now as a general rule the higher the wattage of the power supply the more efficient it should be it makes sense if you have a really high wattage power supply let's say a thousand watts and it's not even eighty plus rated if your computer is pulling 700 or wants to pull 700 from the supply the supply itself might be pulling 800 from the wall because it knows it's going to lose a hundred watts of that to heat in efficiencies with a design that's not good that's a big waste the power supply is probably going to get very hot and very loud it tends to matter less with lower wattage power supplies because the inefficiency gap is just smaller because it's pulling less power overall so if your computer is pulling 300 from the supply your supply might be pulling 320 330 from the wall if it's a 430 watt power supply something like that you soon saying so the margins increase as the power consumption increases and that's why the higher efficiencies for those higher wattages are so important nonetheless I cannot give this my 102 percent surefire seal of approval that it will not explode during use and load because well it's not even 80 plus certified that scares a living heck out of me because this is a 600 watt power our supply it's not like a cheap 230 300 watt power supply then even rate power supplies that are that low and wattage because through at a point the margins are super super small as a general rule it's a neat little power supply for 20 bucks but from a brand like Zalman that isn't highly regarded at all at least in the States in the power supply industry I just can't recommend it and based on what I've seen I mean it looks like it's well built there's almonds a South Korean company like the Koreans make good stuff but I I don't I just don't feel comfortable using it now they make other power supplies that do look good they look good I would be comfortable using some of their other power supplies in a build like this but this one here now 20 bucks now if you liked this video be sure to give it a thumbs up thumbs down for the opposite I don't know what I'm doing with my hands right now but if you also like to subscribe but you should click that for more content like this on the channel this is science studio thanks for learning with us