now this is meant as a followup to my uh setup 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 not true um actually this
power supply The Strider 1500 watt is more than adequate to power the system
and uh to demonstrate that I will just
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 uh 60 60° 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 and these ones so card
one and card three I don't know if 3D
Vision surround is available yet in fact I I'm pretty sure it's not till the next
driver release but you uh 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 3D Mark Vantage and
have a look at just how much power
consumption we're going to be looking at with a system like this I should also
mention the CPU is overclocked to 4
GHz so the uh the 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 cuz uh 3D
Mark 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 wat power supply that means a
700 W power supply would be kind of 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 1,000 wats DC at uh 80 plus so
let's say it's 80% efficiency would actually be able to supply a system
that's drawing up to about uh 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 1,000 Watts now so that means
that actually we could run this system like like borderline borderline run this
system on probably an 850 900 wat power supply now I've actually seen it I've
run this benchmark Mark already and I've seen it Peak up to 1100 Watts but this
should pretty much address everyone who's telling me that the 1500 wat power
supply is not enough because the 1500 wat power supply is probably actually
operating at Peak efficiency right now with a system that draws about 800 watts
1500 wat power supply is looking at about 60% 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 uh don't go away yet because let's have a look at
what the load 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 uh 5 minutes or so to actually
get a proper load temperature but it'll be pretty close uh 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 peek at but maybe I'll do a separate video on that but it looks like
they went up as high as 85° 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