Gadgetory

now this is meant as a follow-up to my set up video for the four-way SLI here and I just wanted to address some of the naysayers in my comments who are telling me oh no 1500 watts is not nearly enough for four-way SLI every card consumes 400 watts or something along those lines to which I say fat not true um actually this power supply the strider 1500 watt is more than adequate to power this system and to demonstrate that i will just show you rather than tell you about it so first of all why don't we have a look at our GPU idle temperatures which you can see are in the 60 60 degree or so range and the system actually isn't even that loud right now now i don't have the video cards overclocked or anything crazy like that at the moment however you know that's something that i may play around with in the future i also had a couple people ask me to download the latest driver which i have done and so you can see that the only outputs that i can use are these ones in these ones so card one and card three I don't know if 3d vision surround is available yet in fact I'm pretty sure it's not till the next driver release but you you will be able to run 3d vision surround with three monitors hooked up to the two cards in the future so I'm running maximum 3d performance and I am not dedicating any particular GPU to the physics in fact why don't we just set the CPU to oh whatever forget it okay we'll just leave it how it was cancel anyway so let's run 3dmark Vantage and have a look at just how much power consumption we're going to be looking at with the system like this I should also mention the CPU is overclocked to four gigahertz so the base well the video cards are going to be as not bottlenecked as is possible with a rig like this it is still on the loading screen actually this might take a little while because 3dmark Vantage takes forever to load but we're consuming about 700 watts at the wall right now now here's something I should explain when you're consuming 700 watts at the wall that does not mean you need a 700 watt power supply that means a 700 watt power supply would be borderline but it would definitely work because power supplies are rated for how much DC wattage they can output whereas this measurement is how much AC wattage is going in so a power supply that's rated for 1000 watts DC at 80 plus so let's say it's 80% efficiency would actually be able to supply a system that's drawing up to about 1150 1200 Watts from the wall so this is only about a 500 watt power supply that could be running oh there we go 3d kicked in we're over a thousand watts now so that means that actually we could run this system like like borderline borderline run the system on probably an 850 900 watt power supply now I've actually seen it I've run this benchmark already and I've seen it peak up to 1,100 watts but this should pretty much address everyone who's telling me that the 1500 watt power supply is not enough because the 1500 watt power supply is probably actually operating at peak efficiency right now with a system that draws about 800 watts 1500 watt power supply is looking at about 60 percent load so thank you for checking out my video today on the power consumption and heat of four-way SLI in fact wait wait there's more don't go away yet because let's have a look at what the lobe temps are going to be on these video cards when we're actually running a 3d application so this isn't going to be quite a worst-case scenario because the air is quite cool here and we've only been running the game for a little while so it would probably take another five minutes or so to actually get a proper load temperature but it'll be pretty close what do we got here Wow so they go up to actually these were still rising so it's very hard to say what they'd peak at but maybe I'll do a separate video on that but it looks like they went up as high as 85 degrees on my top GPU and that's the hottest one by a long shot oh well by one degree anyway so there thanks for checking out my video on the four-way SLI rig