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so you might have noticed it's been a while since i've talked about the oh

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the hundred thousand dollar pc and i'm approximating the cost because i

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actually don't know exactly how much it's going to end up coming to yet

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because they're still a few things that are to be determined

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about the final configuration

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but there's a good reason for all of that i've been waiting on some really

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important hardware to continue my testing so right now we've got a problem

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with the current configuration this motherboard can accept a measly

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seven pci express 16x devices i mean

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what kind of chump nonsense is that for a hundred thousand

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dollar computer that i aim to have six video editors editing 8k footage off of

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at the same time so i got in touch with uh actually a

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couple of really special companies one of them is thermaltake who

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sent over a bunch of their pci express extenders i'm going to use these

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to test running a bunch of graphics cards off of this thing without water

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blocking them all up beforehand which is what i did last time

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which was super stupid because then when i had issues it was it was a nightmare

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and this this

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is actually a bunch of boxes from a company called one stop systems who if

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you're not in the enterprise space you've probably never heard of but if

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you are even then you might not have heard of them and they make

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pci express extension solutions

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allowing you to take a single slot and adapt it to in this case

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eight slots how does that work

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well we're gonna find out not cheaply though

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thanks to videoblocks for sponsoring this video they're a great

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subscription-based resource for downloading stock footage video and more

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check out the link below to learn more so the funny thing about these guys was

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when i got in touch with them um the bloke that i spoke with was actually

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a fan of the channel he was like super into working with us and he was like

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yeah let me let me carry this up the chain and then i i spoke with his

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manager and she wasn't as familiar personally but then her husband was

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apparently super into Linus tech tips and she was like okay yeah no you know

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this sounds this sounds great we'd love to work with you and then

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i followed up and they basically said yeah everything's shipped

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but i hadn't actually worked out what i needed or really talked to them about it

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much yet so i'm not a hundred percent sure

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what's here yet so we're gonna find out together

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i did know this board was coming so they've actually got a bunch of

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different pci express expansion products even you can get like chassis that allow

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you to plug something from the back of one computer into the back of another

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one that looks like a computer but it's actually just a box full of pci express

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expansion or you can get a bare bones board which

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it would appear is what they've sent to me but i'm not a

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hundred percent sure how or if

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any of it is going to work so this guy

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right here is their hiv 35 x4 this is a

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pci express x4 2

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cable adapter so this is going to go into our

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system and is going to adapt a pci express slot

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to a cable that we can plug into the back of the system this is pci express

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over a cable i'm not talking like you know Thunderbolt i'm talking pure full

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capability pci express trippy stuff

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right look at this connector

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oh that feels good we're turning the one pci express slot

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on the other end here into one two three four four eight more

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eight more pci express slots five eight

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pin power connectors and a 24 pin what

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are they expecting you to plug into this thing honestly what they're doing

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is not that unusual

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in fact your motherboard you watching

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right now your motherboard probably has similar technology because you're

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probably aware already if you've followed our CPU reviews that especially

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mainstream cpus don't have a ton of pci

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express lanes on them so then how exactly is it that you end up with you

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know four 16x slots and a bunch of PCIe 4x

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slots when your CPU only has like 20 to 24 lanes

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well the way that they do that is using what's called a plx chip so these are

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effectively think of them as kind of like a network switch where you take one

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Ethernet connection and you split it out to eight computers for pci express so

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this is going to be a very high end pci express switcher chip and then you're

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going to find those same kinds of adapters on here so that allows all of

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this traffic to share this one interface

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now to be clear you're not going to be able to connect eight 16x

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graphics cards and get the full performance out of all them at exactly

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the same time but i'm planning to use it for usb 3. something where with six

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editors not everyone's going to be slamming it at exactly the same moment

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so it should work fine

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and just knock on wood till you until your knuckles are raw

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right there was another piece of hardware that i needed to continue my testing so we

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only have a couple of optane pci express ssds in the building so what i wanted

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was to swap out my 750s for these and have a look at what vm performance looks

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like running on optane raid1 the other

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thing i was waiting for cable mods sent over some pci express power

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connectors that i'm going to need to extend the cables for these graphics

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cards that i'm going to be running on extensions

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i just found the most perfect spot for it you guys never would have believed

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that i didn't know exactly what i was doing here so

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i've got the the host adapter installed on the other

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side i throw in a second power supply here and then check this out

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oh no

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now that could work man we'd have to like pull this panel

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off and maybe like laser cut them or something but we could have all our usb

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ports right on the back of the system like that anyway for today though this

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is just this is just a dry dry run i'm going to bring it around the other side

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so with this expansion daughter board we're going to have a total of

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six remaining because i'm going to take up one of the PCIe slots with the host

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card plus eight so that is 14 pci

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express slots plus all the ones that i am adapting

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from the u.2 plugs on the motherboard so

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uh

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is 18 pci express slots

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just the right number creep 100 okay

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let's get our PCIe power

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and then let's hook up some graphics cards here

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shall we we're just gonna do four graphics cards for today so some of the

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editors are gonna get full 16x slots for their graphics cards and others are

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going to be stuck with a little bit less but for the purposes of what we're doing

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that's not going to affect performance in any meaningful way

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so we're just going to pick some random slots here

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and install some gpus baby so those will go there

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sure so that'll go there

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sure yeah um

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i mean is it there does that work is that kind of reasonable we never claimed this video

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wasn't gonna be madness you knew what you were clicking on

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okay leaning tower of titans uh right

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yeah what could go wrong

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oh there we go okay that's one

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i mean should we do a quick test to make sure this even works before we go any

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further yeah okay all right

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all right let's do it is this on

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what the heck oh it turned off

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let's give it one more try because if there's one slot that doesn't like a

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graphics card or something like that being in it that's going to be a big

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problem because i need to fill all of them with graphics cards ee

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you know what i think it might be is our one stop systems expansion card

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because i don't have the power supply plugged into the

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target end of it yet so it might not like something about

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what's going on here so let's try it with just the graphics card so we're not

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changing too many variables at once here there it is

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okay all right so while this is booting up

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we need to go get ourselves another power supply and it can't be like some

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wussy power supply it's got to have

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i got to find out what kind of connectors these are these pci express

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or the uh oh

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oh crap they're not PCIe

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oh man it's gonna be ghetto

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so this is interesting of our five ax 1500 eyes

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i apparently have three of them and then we also have a 1600i that Jake

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apparently has checked out long term what does he what does he need a 1600 on

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his test bench for okay let's go let's go

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get one of the three axis that Jake has

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so i have one on my bench i have one we have like five so yeah so i have one in

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my no no i have one in my rig at home i have one in the desk pc

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why would i not because it's so stupid you're stupid why do you have so much

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crap here can you clean this up i mean it's working out for me right now

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but in general okay

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what did he do can you believe what Jake did to this

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power supply you see this is why this is why i rage out at people for

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like the way that they treat the hardware around here sometimes

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what the whoa

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you say this like you've never seen it before you're literally the only person

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who's ever used it

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and naturally the eps connectors aren't even in here thanks Jake

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should i just fire him let me know in the comments

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new plan Jake did find another 1500i

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so we're just gonna use that this is the beauty of modular power

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supplies because like how else would you have ended up being able to

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frankenstein a regular desktop power supply to power this

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weird board all we got to do is uh

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what the hell is this

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Jake just peel it off well i mean it makes it

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look like there's something wrong with it

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why did you put so much tape on it

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it's fine

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now i have no idea

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what triggers this thing to turn on

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here we go yeah let's get a bit of a better look at whoa

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all right that's all looking peachy

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uh editor don't include that these guys were very gracious to send us this stuff

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and i don't want them to see that the bloke that i spoke with was actually a

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fan of the channel now i do want to know if it's working so

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here why don't we grab our octane drives and throw those on there and see what

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happens obviously with something like a high-speed storage device we're not

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expecting to get our full performance out of it in this kind of a situation

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but i just want to know if it's working at all this is terrifying everything about this

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is wrong let's take a picture for instagram

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there they are there's the optane ssds just like that

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basically plug and play you just have to make sure you actually plug all the

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things may not look like much but she's got it where it counts kid right

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gorgeous so our optane drives are being picked up

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by the os nvme0n1 and

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this is what i really need to know this is going to tell me if this whole thing

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is going to work or not because if i can't pass through the controllers

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individually then there's i'm not going to be able to get everything hot

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pluggable look at all of these plx bridges here

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that is madness

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so the update is mostly bad news there is what's called an acs override

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patch that you can enable to try to break

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individual items that are in a single i o mmu group out into their own iomu

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groups but as far as unraid knows the the code for the patch has been broken

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since Intel sky lake and it doesn't seem to be working here

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obviously this is much newer than sky lake but they have suggested that if we

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shut this baby down pull the card out and put it in a

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haswell or older system and see if that

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works that maybe they could try fixing the

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patch to work on sky lake and then it might work in this system so

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that's our that's our first step here uh

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well we're not running this for very long so we're just gonna

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put that there yeah

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okay yeah that seems pretty stable

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all right so this is where we find out if the hack will potentially work with

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our pci express splitter device one thing that's nice is how plug and play

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this thing's been these ssds are both showing up perfectly just plugged into a

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consumer board so that's pretty cool and honestly we

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should still get some use out of it even if it just means that all of our usb

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cards that we have plugged into it can't be passed through the vms it'll still be

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nice to have all of those ports okay so i can't reach my contact at unread so

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what i'm gonna do then is just throw some usb cards in here and see if

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we can pass one through to something everything continues to get more ghetto

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now we have ssds hanging off here

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aren't they beautiful our renaissas usb controller is showing

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up here that's one of the ones that's plugged into the daughter board but we still

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don't know if the override worked so let's go ahead and let this populate

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remember this doesn't tell us if we can get it working this tells us if maybe

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we could get it working oh

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this looks like a very big group so this

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is all the plx style no they're all in the same group

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damn it okay

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it's not all bad we still get the benefits of using

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a pci express switch for all our usb devices so everything that we do hook up

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will be better managed and the whole thing does

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work really seamlessly i had just really hoped for hot plug

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and it looks like that might be out of my grasp however cool this hardware

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might be

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00:16:17,360 --> 00:16:23,199
something like an astronaut in space for your video but you didn't have the time

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00:16:21,120 --> 00:16:27,199
or budget to get it yourself well videoblocks has you covered with

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always have fresh new content to check out and use get all of this with an

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unlimited member planet videoblocks today at the link below

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so thanks for watching guys hopefully you enjoyed coming along for

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what would normally be like a behind the scenes type of

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troubleshooting for a project like this if you guys disliked this video you can

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hit that button but if you liked it hit like get subscribed maybe consider

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checking out where to buy the stuff we featured at the link in the video description as long as you don't plan to

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use pci passthrough for the individual things you have

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plugged into it for each one of your vms

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just had a new thought wait

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what if every single slot got its own daughter board with the GPU

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and the usb on that okay that's probably a project for

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another day let's just get the video editing working off this one system

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anyway uh subscribe and check out our merch

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and uh we have that linked below and also our forum you should join that