How many PCIe Extensions is TOO MANY??

July 31, 2019 posted by

Okay, so when we were building our wallputer, wall computer, wallputer get it? Anyway one of the challenges was having the graphics card on the opposite side of the frame. Versus the Motherboard, I mean this thing was so far away that there wasn’t a single PCi Express Riser cable on the market that was able to reach, so the solution? Use more PCI Express risers. We actually ended up with a one meter Thermal take premium extender chained to a 30 centimeter one and we pulled it off with no performance Degradation Whatsoever the system works perfectly fine. Which got us thinking Just how far can you go before things go Haywire? Stick around While we uh Snake our way to the conclusion. Browse privately and securely with Tunnel bear the simple VPN app start your seven day free trial at the link in the video description. Okay, so to kick off the experiment we rigged up our standard GPU bench machine. So it’s a known good machine our PCI express signal integrity should be about as good as it can get Then we needed an extra piece so we also hooked up a separate power supply for our GTX 650 ti graphics card this is so that we don’t actually run into power cable length limitations if the experiment goes completely off the hook Also, having an excuse to call out to Ivan like he’s far away is a bonus so I hit the power switch check off -So I didn’t catch that can you repeat? -Hit this I’m right here. Oh -Engaging auxiliary power now. -Thank you Roger Dodger. -You have recognition. -I’ll turn on the system So to kick things off We’re gonna be using a single one meter extension plus an additional 30 centimeter extension, that’s a total of a hundred and thirty centimeters This is the same as what we did for the wallputer. -On more lower. -There you go. Stress test go. So it’s running perfectly as expected which means It’s time to kick it up a notch, baby. Let’s take it to a hundred and sixty centimeters. Would you look at that still no dropped frames, let’s add more. Look at this. This is ridiculous. Yeah… Down down down right there yep. (Unnecessary groaning) 1.9 meters our PCI Express extensions are almost the height of Darth vader. Okay, so we’re adding another forty centimeters this time You can tell those thermal tape guys have a lot of confidence if they sent us this much PCI riser. I am excited this was the best PCI express riser technology we had around here so, these aren’t even shielded These you legitimately can’t go very far with like I tried Daisy-chaining even two of these together and I had trouble with it, so oh Oh Do we have failure? Okay, let’s try disconnect and reconnect just to make sure that we’re being fair to it come on, baby Is the 650 Ti Pci-e gen3? Nyet (no in Russian) Okay So maybe our load just isn’t demanding enough Maybe we need to bring out the big guns. A Titan Xp ok so. Let’s shut it down and let’s try again So look at this Ok so do you remember back when they launched this thing there was a bunch of press around? The missing Pci-e pins look check this out So these are power and then this is all data and NVIdia swore up and down Makes no difference makes no difference now We don’t know if this is because it’s gen 3 or if it’s because it actually has all the pins But what we do know is that our 650 ti Didn’t go as far as our titan xp at the same resolution. I mean arguably this is a bit of an edge case, but No one can say this scenario is some what of a stretch. I think we’re gonna have to go even further straight to 3 meters should we do it? -YOLO! Okay, this is ridiculous. I mean why would anyone need to know we need more table. We need more table You have to hold the monitor now. This is what happens! -Done yell at me or I’ll turn the relationship. How many times I have to say? -I’m not yelling at you I’m yelling with you. Okay, be honest with me though are we expecting this to work? -No comment. It’s on! No artifacts or anything. This is crazy. How’s it doing though? 120 FPS. Same as before. We’re still getting the same frame rate. No weird anomalies three meters. That’s like 10 feet for Americans. add 30 or add 60? -Do I really have to scream YOLO? Okay monitor over on the other side and then just hold the graphics card here. This is insane That’s the last piece we have? -Yeah. -Three point six, okay. No one come through this door. No. It’s still working. -No way. -Wait Maybe that’s all we got oh, oh, it’s at Postcode 40 now Same as last time same as last time, okay hold on let’s shut it down though Let’s I’ll do a quick reconnect of all the things okay hold on. -Also keep in mind that these are not powered. So perhaps it’s not even signal loss is just power loss. -Oh, you could be right. Three two one blast off. No! Look at this. Look at this 3.6 meters. You could literally have your graphics card in another room Okay, hold on I gotta run FurMark though. Show me the 120s. Oh Noooooo. No-Ho-ho! The FPS is going up though. It’s at 55 after 86… …25, 14 oh. Nooooo! Wait! Nooooo! No, it’s so Borderline! It just teases me every time. -Welcome to a personal life. -Okay, well, I think we’ve reached the limit. Ultimately we failed when we tried to yolo too hard, but I still consider this a success three meters of PCI Express extension and we managed to get it running at a Equivalent to having it right in the socket 120 Fps, so thanks to Thermaltake for providing all these pci-e risers and thanks to the Slab for holding the graphics card how’s that 85 degree GPU right there? -I stay holding my hand against a hot backside. -Today’s video is brought to you by LG’s share the art promotion featuring their ultra lightweight Lg gram Laptop LG Works with a coffee artist who came up with three pieces of artwork Inspired by the gram you can check them out at the link in the video description What you’re gonna want to do is share the post on your social channels and Write the posts url on the event page for a chance to win a prize You could win an LG monitor. an Amazon gift card or one of 14 LG grams for participating and even if you don’t win you can get another chance by visiting the Behind-the-scenes YouTube link also in the description and commenting on your favorite feature of the gram. The weight is really cool, and battery life. This campaign will run from today to september 14th 2017 so check it out at the links below Alright, so thanks guys for watching if you disliked this video. You must not like fun. But if you liked it hit that like button get subscribe maybe consider checking out where to buy the stuff we featured at the link In the video oh, I just turned They’re just hard reset Or did it just hard off it’s at a zero, this things done. Also down there is a link to our merch store where you can buy cool shirts like this one as well as our community forum where you can discuss, you know cool tech content like ours. Thank you 4 using my subtitle, will be making more.


100 Replies to “How many PCIe Extensions is TOO MANY??”

  1. google inc says:


  2. TheKnodel12 says:

    Of course the Titan would be capable of a longer length. It's power regulation on inputs and outputs is probably much better than the cheaper cards. Plus plenty more connectors to ground vs only through pcie.

  3. Nick Nick says:

    I'm not yelling at you I'm yelling with you.
    That's a very good line to use in argument 😂😂😂😂😂😂

  4. Agent 51 says:

    7:30 That's how I play Warframe just about everyday, but I still recc the Stalker.

  5. Nutellah says:


  6. Mr.StealYourGirl says:

    5:03 cringe.

  7. Gigidag77 says:

    Gonna put my GPU through the wall into the next room. Fuck the noise

  8. spicy boi says:

    Use your inside voice

  9. TaprootToob says:

    And I was wondering if one or two cables would create enough resistance to cause stability problems, cool idea

  10. pvphacks101 says:

    Lol bout to cool my GPU in my closet with. A ac

  11. Antonio Noack says:

    @3:00 you should look up binary search, would have been quite a bit faster…

  12. Wretched Slippage says:

    5:10 does Ivan threaten Linus here? What a legend./

  13. JessicaFEREM says:

    tfw don't have a long DP cable so using million PCIe extender

  14. Alpherr says:

    You should make a pc room so graphics card on this wall and Mainboard on this ec..

  15. zhienfang shen says:

    Dear friend:

    Hello ! We hope to cooperate with you to shoot product videos. I don't know how our cooperate with each other. Can you elaborate with me? Thank you! Our product is the pcie wifi allows you Convert your mini PCI-E wireless card (half size) to standard PCI-E 1x slot.then you can use it in your desktop to connect wireless networks.(note this adapter could only compact with half size wifi card not full size)link:



    look forward to your reply! ! ! Email:[email protected]

  16. Merc399 says:

    But what about input lag tho

  17. H C says:

    U don’t need extensions just plug ur graphix card into ur router stupid, then all ur WiFi has ultra settings with your 1070ti

  18. Kelvin Broder says:

    I wonder if he takes his ADHD meds or if he sells them. Linus, let me know if you sell them.

  19. miketucky350 says:

    I'd like to see pcie extension go that far. I bet thermaltake has no idea this was going to happen lol

  20. SAS Productions says:

    was that gpu hot as he was holding it? yeah just a bit.

  21. Alex M says:

    Thats stupid why not just get a wireless pci x16

  22. _camdenc_ says:

    3m is actually above 15 ft for Americans

  23. TechŽinios says:

    i got my pc i the balkony with the windows open and i get my cables through the wall and now i will get risers for my gtx 1080ti and put it outside through the window best temps in the bloc

  24. Melody Chest says:

    I know Ivan .. he always yells not only at you but at me too!!!

  25. qatar573 says:

    i need to get my hand on the same drug you guys on.

  26. Chris Rogerson says:

    What about 3.3m?!?!

  27. ThePixel1983 says:

    Now make it SLI

  28. ThePunslinger93 says:

    Linus when something good happens: NOOOOO
    Linus when something bad happens: NOOOOO

  29. star43able says:

    what have u done

  30. Zombie Dragon says:

    how many HDMI cables chained together is too many or how many VGA cables chained together is too many ?

  31. Samuel D'souza says:

    when you lose a chromosome 7:00

  32. de brebeuf says:

    7:24 thank you ivan

  33. Marrks R says:

    I come from the future, I can't even buy one of those, fuck you Linus, hugs

  34. Oskars Arājs says:

    He screams too much. Also, isn't that cable output only?

  35. Arefin Dipto says:

    That man is an ass man…… Respect!!!!

  36. Ali Hussain says:

    Send me one of that 🤷

  37. tkt546 says:

    I wonder if it failed because of the length of the cable, or because they laid the card face down on a solid surface, cutting off all of the airflow?

  38. YeeteR YanG says:

    Graphics card: in the living room
    CPU: in the kitchen
    Motherboard: in the bedroom
    Ram: in the bathroom
    Power supply: in the closet
    Hard drive: underground XD

  39. Tadhg Treanor says:

    You didn't test 330cm after 360cm didn't work and as a science student that bothers me more than it should.

  40. m9000k says:

    you can now buy a 4m pcie cable 🙂

  41. Nathan Premo says:

    This gives me hope for external graphic cards for laptops someday.

  42. Marcelo Meireles says:

    The correct link on Amazon:

  43. Tim Roth says:

    Quick question about the power supply. I need to power a gpu with its own power supply similar to what you've done in the video, but the Rosewill 550w PSU I've purchased claims that it will not power on if it's not connected to a motherboard. Has that been your experience, and is this an issue that is specific to certain types/brands of PSU? Any help is appreciated.

  44. spiderprime says:

    good to know, I need to get one of these to move my parts from one case to the other, but it already has a riser from a SFF case that uses m.2 nvme drive on it and the GPU, and it will make it sideways in the case not attached to the case, so this is exactly what I needed to make it fit into the new case! Instant buying tomorrow!

  45. Josh Winter says:

    can you build me a pc plz

  46. Ecktor says:



  47. Ronil Caro says:

    Can I have one PCIe Extension for my PC?

  48. Jerryc. 17 says:

    My csgo runs on 27 fps

  49. Threelly AI says:

    Old town roads is full of weird comments…

  50. cardsfanbj says:


  51. Blauebiene says:

    Still waiting for the cpu-socket-extention.

  52. ulrest says:

    We just gonna ignore 7:25

  53. XPenacoba says:

    Please someone tell me that the Russian guy keeps working in ltt

  54. simeon LPS says:

    10 Minutes of OHHHOHOHOOOOOO

  55. 张帅 says:

    I'm sooooooo glad LTT used metric insted of someone's feet far back in 2017

  56. Wyld1one says:

    `Yeah, this makes sense. signal loss due to the connectors and copper. however; a properly made cable would probably still go further. IBM had this issue like 30+ years ago with cable runs to the Disk storage on their 'System/38' mini-frames (not quite main main frame class) we are talking 30 ft distances, and entire room distances. Their solution? 5mm coax (one for each signal line) platinum cables.

    How do I know? I scavenged some of those bundled drive cables (about 1" around) and repurposed them as video cables. – new ends on a couple and 30ft+ later I still have no discernible issues with signal problems. Now even tested to 1080i standards too.

    I had two of these cables – looked like this:

    They were the bus cables that connected the main system to the 'exterhnal' enclosures teh drive stacks were housed.

    Yes, I cut my professional teeth on this machine – from operations to programming in RPGIII.

  57. Olivier Séguin says:

    It just teasing me
    -welcome to my personnal life

  58. xys007 says:

    Test it in games not in a Furmark …

  59. Canizter says:

    6:40 Linus sounds like Doc Brown from Back to the future

  60. wonder naptune18 says:

    Now I can have my PC parts shared around the house


    I'm using the exact same riser now. It's a little longer than I needed so I was concerned but I actually got better benchmarks after installing it.

  62. haloharry97 says:

    This needs to be retested with pcie 4.0

  63. TheStigma says:

    Makes you wonder why nobody in the high-end case market hasn't already used PCI-E risers included in the price to provide a creative and vastly more efficient mounting position for the GPU…

    I mean, screw vertical mounts to show off your bling… What you want is your GPU fan intake directly stuck onto an intake – or better yet, just a separate compartment at the bottom or top where you can both get direct access to fresh air AND vent all the heat right outside the case to make cooling the chassis trivially easy.

    Of course, nothing is really stopping you from just doing this yourself. It would be easy to use a riser from a lower slot down to any case with a bottom intake – or you could go full ghetto and just let it sit outside your case if you just don't care 😀 probably well worth the cost in terms of cooling benefits over lots more casefans, watercooling or very expensive models with overengineered coolers.

  64. Marius Berger says:

    Today on ‚Questions no one ever asked‘:

  65. Ryzen Core says:



  66. Ryzen Core says:


  67. Laudo Witbooi says:

    Hey Linus try this again with a RTX 2070. Maybe it would go further

  68. mohammad ali sadeghi says:

    after Linus realized this fact :
    linus: ok. let's make a room for the graphic cards.

  69. nio. says:

    wow so cool!

  70. Saketh Kukkala says:

    When linus says nooo, it could mean either a good thing or a bad thing. It gets quite confusing when linus wants something to go bad.

  71. The GamerLV says:

    That is my PC lag

  72. Sean T. says:

    nice! now we know!

  73. narutofan32 says:

    Didn‘t they have a problem with a riser cable from thermaltake? Which video was it back then?

  74. Nicholas Huber says:

    This video was not needed

  75. Tanishq Matharu says:

    "welcome to my personal life"

  76. smekker the modder says:


  77. Ultimate Loserking says:

    Buy me a pc, I will play your videos over night.

  78. Ultimate Loserking says:

    Buy me a pc, I will play your videos over night

  79. xDiamondbackmod x says:


  80. VeveRO says:

    Would love to see a remake of this using PCIe 4.0 to find out if the version of PCIe really matters

  81. KBzjack Paronama says:

    Fukc XD
    Like to reduce inappropriate language

  82. Andras Jonas says:

    So, Darth Vader would just about fit on the desk. Okay.

  83. Brian McGaw says:

    I do wonder if display latency increased, I'd assume so

  84. KaTh says:

    Yah now I can put my gt 1030 in my freezer and over clock it

  85. Hermite says:


  86. Praveen Kumar says:

    Chutiya h

  87. XenoMatryX0Ionize1 says:

    more Ivan pls 🙂

  88. wacky val says:

    stupid americans messuring in feet 😀

  89. Shawn Couture says:

    Perfect for blowers gpu

  90. DarkSydeFrancis says:

    You should try this with psu cable extensions

  91. Rogelio Reyes says:

    i love it.
    Linus answering the questions we all didnt knew we had.

  92. Mr Robott says:

    Did the same thing be possible but instead of graphics cards you had USB 3.0 extension card

  93. Martin Nunez says:

    What if you stretch it around the world to China so they constantly are updating it

  94. Kyle Haines says:

    Linus: "Nooooooooooo, it teases me every time!"
    Ivan: "Welcome to my personal life"
    Audiance: Shakes head in disappointment, feeling bad for Ivan

  95. OnePlus 5 says:

    Another one of those pointless tests but I still watched it anyway 😀

  96. Luna Lytele says:

    FOR SCIENCE. that casual racism I love it.

  97. Josh C says:

    Why is he so suprised. Really annoying

  98. Riccardo Cagnasso says:

    Please do this with the hot swappable pci motherboard. Please.

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