WEBVTT

00:00:00.080 --> 00:00:04.720
I get a lot of questions about PCI Express what works with what what

00:00:03.439 --> 00:00:08.440
doesn't work with what what are the different Generations what does it all

00:00:06.720 --> 00:00:12.920
mean so today we're going to tell you everything you need to know about PCI

00:00:10.200 --> 00:00:16.960
Express 3.0 as fast as possible so let's start with the very Basics PCI Express

00:00:14.920 --> 00:00:21.880
is the interface that is used to plug modern expansion Cards into modern

00:00:19.720 --> 00:00:26.760
computers or motherboards it completely replaced PCI and AGP which is great

00:00:24.240 --> 00:00:31.039
because AGP was only for graphics cards and PCI had to be used for pretty much

00:00:28.760 --> 00:00:36.120
everything else PC Express works with pretty much anything sound cards network

00:00:33.719 --> 00:00:40.000
cards raid cards video cards they'll all pretty much fit as long as you're aware

00:00:38.000 --> 00:00:44.000
of a few simple guidelines now I said they're Universal but PCI Express slots

00:00:42.120 --> 00:00:52.440
are available in a variety of different physical configurations the most common

00:00:46.320 --> 00:00:54.760
ones are 1X 4X 8X and 16x all of these

00:00:52.440 --> 00:00:59.280
types have different slots on the cards themselves and different slots on the

00:00:57.000 --> 00:01:02.440
motherboard the cool part about that is that they're uper and downwards

00:01:00.680 --> 00:01:07.960
compatible though here I am plugging a PCI Express 1X card into a 16x slot it

00:01:06.159 --> 00:01:11.400
gets the same power delivery it just gets less bandwidth delivered to it

00:01:09.560 --> 00:01:16.479
because that's all a sound card actually needs and not only that but I can take

00:01:13.720 --> 00:01:22.400
this PCIe 8X raid card and plug it into a PCIe 4X slot it'll still work but it

00:01:20.479 --> 00:01:25.360
will only have half of the bandwidth available to it that it would have

00:01:23.600 --> 00:01:29.400
otherwise had if you plugged it into an 8X slot the other thing that affects the

00:01:27.560 --> 00:01:35.079
performance of PCI Express is the generation here I'm holding a PCI Express

00:01:32.360 --> 00:01:39.799
generation 2 16x card and here I'm holding a PCI Express Generation 3 16x

00:01:37.600 --> 00:01:44.320
card they look physically the same on the connectors but the actual available

00:01:42.200 --> 00:01:48.560
bandwidth has doubled in fact the available bandwidth of PCI Express cards

00:01:46.399 --> 00:01:54.640
has doubled with each generation so a PCI Express Generation 1 16x slot is

00:01:52.200 --> 00:01:58.880
only equivalent in performance to a PCI Express Generation 3 4X slot so the

00:01:57.680 --> 00:02:03.320
takeaways from this are pretty straightforward PCI Express cards work

00:02:01.159 --> 00:02:06.200
in PCI Express slots as long as there's nothing physically in the way

00:02:04.640 --> 00:02:11.080
performance on the other hand is going to be dictated by what generation of PCI

00:02:09.520 --> 00:02:15.640
Express the card and the slaughter running at so it'll run at whatever is

00:02:13.599 --> 00:02:20.640
the lowest generation of either the two components so Gen 2 card gen 3 slot plug

00:02:18.640 --> 00:02:24.200
them together they run at gen two and then performance is also determined by

00:02:22.239 --> 00:02:29.120
the length of the card and the length of the slot so for example this quad Port

00:02:26.599 --> 00:02:33.040
gigabit Nick needs at least 500 megabytes per second of bandwidth in

00:02:31.040 --> 00:02:38.680
order to operate at Peak efficiency that means if I have an older PCIe gen 1

00:02:35.920 --> 00:02:42.480
motherboard I'll need at least a 4X slot or a hypothetical 2x slot to get the

00:02:40.519 --> 00:02:46.800
bandwidth I need because it's only 250 megabytes per second in a 1x slot

00:02:44.720 --> 00:02:51.319
however if I have a PCI Express Gen 2 motherboard I could even use a 1x slot

00:02:49.400 --> 00:02:55.879
to get everything I need because that'll be about 500 megabytes per

00:02:53.800 --> 00:02:59.519
second thanks for checking out this episode of fast as possible make sure

00:02:57.959 --> 00:03:03.159
you subscribe to Techquickie and also like the the video it helps us out a lot

00:03:01.480 --> 00:03:06.560
share this video with anyone who you think would benefit from it including

00:03:04.720 --> 00:03:11.599
embedding it on your website consider this my go-ahead to well go ahead also

00:03:09.560 --> 00:03:15.319
if you can think of any other fastest Possible episodes that you'd like to see

00:03:13.640 --> 00:03:18.879
click the link in the description to post in the Forum thread we will monitor

00:03:17.640 --> 00:03:24.080
that and we will make sure that we check it out again thanks for watching and see

00:03:21.000 --> 00:03:24.080
you next time