The Sneaky Thing About PCI Express

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Learn about why all PCI Express lanes aren't the same.
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Stažení

Komentáře

Make Money Now
Před 10 hodinami
As always, quality videos right here!
AC3
Před 2 dny
SOmething I notice on a lot of MBs, is that the lower PCIe slots from the top one, have less pins in them. You can even see it on this board. the bottom slot is only an 4x pin set.
Bill Hubbard
Před 7 dny
Linus and his team are some very intelligent people. I don't play on PC I'm just not smart enough for all that. I've learned everything I know about PC from this channel. But to go implemented in real life it's just something I don't think I can do. But I absolutely love the content of this channel and LTT
spotted0wl
Před 12 dny
Will the equation change when more PCIe devices are trying to talk direct to each other (e.g. GPU
Sparhawk122
Před 15 dny
AMD already future proofed. Intel obsolete.
Jared Elza
Před 15 dny
Exactly, Intel SHOULD have this in a FUTURE generation. If you're running current gen AMD, you already good.
DDO Titan
Před 15 dny
Hey Linus, You could host a PC Building Contest(Scrapyard Wars?) "ehh, kinda..... ?" But With abit of slack of rules or none at all", Just lettem use the parts in your warehouse if you have, first one(or few people(your choice)) to build a PC the closest best wins.(You chose the prize) :P (New people as in the ones in your ROG RIG Reboot Series)
Medieval Folk Dance
Před 16 dny
The more of these videos I watch, the more I want a new motherboard, and the more depressed I get about not being able to afford a half decent one.
Sirius Enigma
Před 16 dny
They are “backward” compatible. You can connect a 16x card in a 1x PCIe it will works... poorly. But it will work. What really aggravates me is when they place a 16x connectors size and wire it for 8x or 4x. Look inside the connector, if there is no pins on the right half, you have a 8x not a 16x. If you have 1/3 pins it a 4x. The 16x connector is only there to physically support the card. There is no electrical pins in it.
Internet Explorer
Před 16 dny
Help me windows won’t load on my laptop
Sugar pops
Před 17 dny
I just watch these videos for the big words
TheGreatSeraphim
Před 17 dny
Intel widening the highway and video cards be abandoning multicards rendering this moot. Then again I'm hearing the later second hand and have not investigated if they have plans. I've fallen a bit behind when I got lazy updating my system. Vivid hasn't helped as I have been wanting to do a clean build since summer but I'm a physical buy shopper. Just too many bad experiences buying online while upgrading the last build.
Bene64
Před 17 dny
g j
Ugur øzden
Před 17 dny
hello i bought an i5 9400f just over a year ago with the socket Socket-LGA115 i got a gtx1660ti grafic card with 16gb of ram.. so upgrading my pc whats should i upgrade first ? the cpu right ? but then what cpu to buy beacouze if i go amd i would have to switch motherboard. any recomendations.
Jayson Cronly
Před 17 dny
it says in the b550 diagram in this video that there are 16x graphics card pcie lanes, and 4 chipset downlink lanes for a total of 20. doesnt that mean only 16 directly to pcie slots, and the other four are to the chipset?
toast
Před 17 dny
I really dig that mouse and need a new one but 60 bucks seems so much when it's a tiny frame and that's about it. you'd think price = quality but not always, my expenive as headphones have a PLASTIC headband so i can only guess how long that will last, good to know this wasn't mentioned at all in either reviews or on product page oh well
toast
Před 17 dny
I need MORE and LONGER. I know that's not as simple as it sounds so I'm just sayin'
Wonderful
Před 18 dny
Music too loud in this one. Can't hear Linus.
Stede Bonnett
Před 18 dny
It's interesting that you can see the 3rd 16x slot at the bottom is only wired for 4x.
Sparhawk122
Před 15 dny
1st slot is x16 2nd slot is x8 3rd slot is x4 Usually how most motherboards work.
Viking 2121
Před 18 dny
Kinda why I went with Threadripper, I love having the PCI-e connectivity, I had the 5960x and while it had 40pcie lanes, it still had some weird routing and slow downs or it disabled something somehow that I needed or could use. This threadripper system I do with the Asus x399 Zenith Extreme would of had the option to turn the x8 slots into x16 so I would have to install my video card the way it is, but I got enough lanes to not slow anything down, especially storage.
Viking 2121
Před 15 dny
@Sparhawk122 Yes, and some of them lanes are dedicated to other parts of the system such as onboard wifi ect, i'm not sure how many lanes the chipset has, but it isn't much and can cause delays in some things though mostly irrelevant. I have a ton of high bandwidth pci-e devices where the 5950x would be fine for most of my wants, but I often over time find my self needing or wishing I had more PCI-E lanes. I had trouble with with Intel x99 with its 40 lanes and all of my nvme devices, and how the board was laid out. The 5950x would be fine for most users who just want to game with a few pci-e devices.
Sparhawk122
Před 15 dny
5950x has 20 PCIe lanes?
Chris Brisson
Před 18 dny
The link between the chipset and the CPU is about to expand to 8 lanes in an upcoming Intel offering, n'est pas?
Corah Nihlost
Před 18 dny
What that they're not sending 95% of the 3000 series cards to reviewers, regardless of their subscribers or views?
Gavin Starr
Před 18 dny
Happy birthday Linus!
Brandweerman Sam
Před 20 dny
2:29 linus saw a the new ryzen x 😂
Commercio
Před 20 dny
I wonder whether the motherboard layout we have today will change in the next 10 to 15 years. Or if we'll just have subsequent PCIe generations (PCIe 4.0...10.0 etc.)
Silvy
Před 21 dnem
Ah, so thats probably why my old PC didnt get much faster SATA read speeds even though I had multiple drives in RAID that theoretically should of preformed faster.
Bob Brown
Před 22 dny
In the case of X570 (at least on mine Asus Tuf) the 2nd PCIE_X16 is routed via chipset not CPU AMD X570 chipset 1 x PCIe 4.0 x16 (max at x4 mode) 3 x PCIe 4.0 x1 www.asus.com/Motherboards-Components/Motherboards/All-series/TUF-GAMING-X570-PLUS/techspec/
Richterman
Před 22 dny
Just so ya know that's a asus b550-f
ArthursHD
Před 23 dny
You have "Speed Limits" 3.0 x 1 + 3.0 x 1 = 4.0 x 1
Ben Klassen
Před 24 dny
About time for a new 11th-gen Intel build
Lasse Stäglich
Před 27 dny
Limits on highway?? Nah I am german
Michelangelo Ceferino
Před 28 dny
Leonel Messi
Direkin
Před 29 dny
Whenever I see or hear about Steel Series, I'm always reminded of that Bully Hunters fiasco.
Endoteria 1998
Před měsícem
not all PCIe ports are created equal. they are endowed by the chipset with a certain amount of lanes
Kakureru D
Před měsícem
is there a way to see this topography without having documentation about board?
sparkspence303
Před měsícem
When is the next gen of pcie coming out? Last I heard was first q 2021 and is it worth waiting for when I'm looking to upgrade now?
Sparhawk122
Před 15 dny
AMD already has PCIe 4.0 and enough lanes for their CPUs. Just ditch Intel.
Das Mammut
Před měsícem
Highways without speed limits Germany 100
R F
Před měsícem
coment
Andre Bataglia Segundo
Před měsícem
Intel. 2012 HEDT. Here, have 40 lanes of pcie 3.0 2020 DT. Here, we finally upgraded to 20 lanes pcie 3.0 Sometimes I wonder if intel executives are just greedy or have mental illness.
RIZQI AKBAR SUBAGJA
Před měsícem
TUTORIAL AUTOCAD 3D SALT HOPPER PLATFORM cssun.info/net/video/zpuCpZmqiNjJ4KE.html TANKSS
Jon Rowlison
Před měsícem
Great video! When do we get an i9 CPU with 64 lanes of PCI? :)
陈北宗
Před měsícem
This CPU-chipset bridge can choke if you have both 10Gbps Ethernet and high performance NVMe SSD on the chipset at the same time and you are copying files from your network to that SSD. Now the SSD and the network card have to fight for bandwidth and you bottlenecked both of them.
Kurt Barker
Před měsícem
Hold up! Are they Australian Road Work and traffic signs?!?
AMR F1
Před měsícem
Linus please stop talking about the mousepad that no one can buy!
nope!
Před měsícem
i think the third pcie x 16 is typically connected to the southbridge
Joshua Stagnitto
Před měsícem
wait... M.2 doesnt connect directly to the cpu but pci-e does... So should i not have my M.2 (970 evo) in the M.2 slot but rather on the M.2 Pci-e card that came with my motherboard? (MSI Z390 Godlike)? And if i do it like that will i be limiting my graphics card (2080ti) to only 8X speeds?
Decenium
Před měsícem
Whats an Intel? thought AMD was all about PCIE lanes? is this vid sponsored or what?
Morten Skyggebjerg Olesen
Před měsícem
I know we have had the title discussion before but this video is a good example of it. It's a great video of how PCI E slots and bandwidth work which is super usefull and educational, however the usefullness dwindless as the title makes it less search-able. The main reason for titles like these is clickrate iirc as discussed on WAN show. I hope that when the traffic goes down (due to the video not being new content anymore) that they will change it to something more descriptive of the content. Title as of 6. dec 2020: "The Sneaky Thing About PCI Express"
x x
Před měsícem
Umm, splash proof mouse? Not a gaming feature! That's only for adult functions.
Somanithel Kheang
Před měsícem
That part about the PCIe x16 slots all connecting to the CPU is misleading to straight up false. Most boards don't have the 2nd and 3rd x16 slots connect to the CPU at all. The surefire ones are the boards with SLI. Ones without, it's up to the manufacturer.
John Vo
Před měsícem
He’s not just describing the PCI express bus, he’s describing my daily commute. 😭 🚗 🚙😵
Justin Baughman
Před měsícem
*laughs in X399 as I add 4 m.2 drives to my system that already has 4*
Yes Hai Am OwO
Před měsícem
SteelSeries is so nice
Ataru Moroboshi
Před měsícem
Very helpful.
Esat'ın Maceraları
Před měsícem
didnt somone say you shouldnt have holes on your mouse in this channel
Roshan Varughese
Před měsícem
Go back to the blank background and images on screen...xD
Nalms
Před měsícem
Idea for future video; A video from Linus without a segway to a sponsor?
A1200
Před měsícem
Very good explanation!
DESTINY 1 TV
Před měsícem
TikTok video gone wrong..... cssun.info/net/video/qXWJuaN8qr7H2mo.html
Thomas Allen
Před měsícem
Don’t tease me about the mouse pad, I just bought a random one because that one wasn’t on lttstore.com
C L
Před měsícem
This is why, we all should buy threadripper motherboard!! Specially with the 5000's cpu serie!! 🙄 NVME RAID!!!
yumri4
Před měsícem
Supermirco's diagram for what goes where on their server motherboard told this story better. It did say where what went to which not all motherboards connect all lanes the same way .... unless it is an intel board then yeah Intel kinda makes that happen for the board to be certified for Intel chips.
Lostie DeMonde
Před měsícem
You should stop doing reviews & overcloking shit on **AMD** products **BECAUSE THERE IS NO STOCK AT ALL** Stop doing publicity for them **THEY DON'T DESERVE IT** ... and we don't need to be punished more ! Days after days your behaviors convince me that gamers are stupid ... wake up **THERE WILL HAVE NO STOCK FOR MONTHS** **Take a hammer and hit AMD nonstop** ... this is what they deserve! We know where the stocks goes ! Fucking sellers
Dhanar Putra
Před měsícem
I think it should be illegal for manufacturer to put the obsolote SATA port. We need more compact PC cases.
Amiris sheep
Před měsícem
I read that as Ali Express.
MyEconomics101
Před měsícem
TIL that disabling SATA ports is a thing. Is that a thing for the budget chipsets, but not the "gamer/performance" chipsets?
frostdemon
Před měsícem
What kind pc should I buy for animation like vfx and graphic like that
Nekko
Před měsícem
I get an ad from pulseway with Linus in it lmao
Bastet Furry
Před měsícem
Kids these days will never experience the Fun(TM) of having six PCI slots but only four IRQs to go around for those six slots while the Chipset already eats two of these. :3 Yes, IRQs could be shared, but only at a huge performance loss or having some instability in your system. Fun days. :D
q2subzero
Před měsícem
so basically.... unless you're using a workstation-grade cpu, you can NOT use every sata/m.2 and pcie-16x slot on the motherboard. bravo chip makers/mobo makers. bravo. thank you for limiting what i can/can't use on items i purchase.
Robert Andrews
Před měsícem
What about rgb? I mean I got over 12k leds in my gaming rig and I want no latency so they change color at the exact second, not even .0001 seconds later.
The Patograper
Před měsícem
I still love heavy mice
Lee Bannister
Před měsícem
The channels you speak of from your CPU to the GPU, are they also called threads (i.e. Ryzen 7 5800x has 16 threads), or is it something different?
Michael Skinner
Před měsícem
Can you please use brighter (white or some other color) lines when outlining the chipset? I couldn't tell until it covered a light reflected piece
Roberto Tomás
Před měsícem
How many pci lanes on (which) ryzen chips - were you just referring to the difference between the regular tier and the threadrippers?
Sparhawk122
Před 15 dny
The 5000 series AMD CPUs have 20 lanes.
The Cheaterman
Před měsícem
This video is _very_ good! Thanks! Quite a bit more advanced than usual, but with the same simple explanations :-) I genuinely learned stuff!
T.Tasos
Před měsícem
Wait... so adding a 2nd M.2 will do what to my GPU? :S On i9 9900k I'll have something like 8xPCI-e for GPU, 4xPCI-e for one M.2 and 4xPCI-e for the other M.2? Though I guess I'm already running my GPU on 8 lanes.
Styil
Před měsícem
Nothing. M.2 slots don’t use cpu pcie slots.
praystation
Před měsícem
im using 3990x threadripper with 88 pcie lanes. that is plentiful.
Ethan XxX
Před měsícem
Ooommmm Ok 😍 Finally some one explained Beautifully thanks
Hanryo
Před měsícem
Love the Australian road work signs at 3:58
Deven B
Před měsícem
I just want a cpu with 48 lanes, support for 4000+mhz RAM, and a nice large jump in technology so clocks go from 3.8 base to like 7 base
Jannik
Před měsícem
Good Channel, keep it up!
K C
Před měsícem
Great, to the point and linus didn't break anything either . Our boy is finally all grown up
AIMBOTfromGT
Před měsícem
this guy looks like Linus
- Macks -
Před měsícem
i dont really like the slower feel of this techquickie, but it might be better for a wider reach or viewing time or something so i understand
Fred Wupkensöppel
Před měsícem
Isn't the lowest PCIe x16 slot usually connected to the chipset?
Ben Klassen
Před 24 dny
Depends on the board and chipset. Yes for h470, no for z490.
Muhammad Johan Johari
Před měsícem
Subbed! More vids like this please!
Mark P
Před měsícem
I had and MKBHD rebrand advert and then a Linus pulseway advert before this video. I think my interests may need diversifying.
kimnice
Před měsícem
Wonder when high end graphics cards start to need PCIe 4.0 x16 speeds? I mean with PCIe 1.1 x8 (slower than fastest AGP) bandwidth RTX 3080 is still faster than RTX 3070 on PCIe 4.0 x16.
Courtney
Před měsícem
I love that once in a while you bounce back to stuff I unferstand ty :D or rather trying to completely understand. ty
D827 Kelly
Před měsícem
This is in part why pcie gen 4 whilst not giving graphics cards any speed boost, alleviate some of the problems by doubling the theoretical max speed per lane, so a you only really needs 8 to have the same bandwidth available to it, and leaving plenty for nvme storage. Gen5 in theory means a GPU would only need to have 4 lanes to have the same bandwidth available to it as currently on gen 3, again more lanes potentially freed up for storage and other things. It is rumoured that the next generation of ryzen will move to gen5, and the 12th gen intel too.
richard lane
Před měsícem
You may have done this one but how about why some webpages ask if you are sure you want to navigate away from them
dokha
Před měsícem
That must be the least ergonomic mouse ive ever seen in my life..
Deon Spates
Před měsícem
PCI Express needs RGB!!
Brick Brick
Před měsícem
*me not having to worry about lanes because of the 48 on my intel processor*
Sparhawk122
Před 15 dny
Which Intel CPU?
Harshith SV
Před měsícem
I see the word "Express", the only thing that comes to mind is "AliExpress" 🤷‍♂️
Harshith SV
Před měsícem
@Nick Miller Well.. Sort of 😃😄
Nick Miller
Před měsícem
So the chipset PCIe lanes are like AliExpress while the CPU ones are like Amazon Prime
ken Tries
Před měsícem
Thought I watched a lot vid!
ThunderousGlare
Před měsícem
Im confused... so is this correct? A graphics card using x16 is going to be potentially faster than same card using x8 lanes. Cpu has inherent support for limited pci lanes. So if you use x16 lane, card would be used at x16, but if you plugin in 2 cards in, then even if they are in x16 slot they will be used as if they were in x8 slots. Since cpu support 2x8 not 2x16 lanes. There are more x16 slots that run through chipset, but are actually shared x4 lanes. The direct to cpu lanes x16 are also shared with each other unless cpu has support for more. SD card also acts like graphics card but only takes x4 lanes.
Aurobindo Ghosh
Před měsícem
which answers the sneaky prices
callmebr549
Před měsícem
How about a FS2020 killer? Maybe with a Yaw?
Captain Smith
Před měsícem
You use the second card for DMA, www.cheathappens.com/23391-PC-Titan_Quest_Anniversary_Edition_cheats How the F(**) do you use xbox gamepass?