1 00:00:06,780 --> 00:00:09,423 - [Instructor] Let's not forget about laptop RAM. 2 00:00:10,498 --> 00:00:14,670 These are small outline DIMMS, or SODIMMS. 3 00:00:14,670 --> 00:00:17,850 And you might use these for other devices as well, 4 00:00:17,850 --> 00:00:19,500 such as small office 5 00:00:19,500 --> 00:00:23,133 and home office network attached storage devices. 6 00:00:24,060 --> 00:00:27,480 SODIMMS are much shorter than regular DIMMS, 7 00:00:27,480 --> 00:00:30,000 and they are designed that way 8 00:00:30,000 --> 00:00:33,780 so that they can fit into tighter spaces. 9 00:00:33,780 --> 00:00:37,380 We show an installation of two SODIMMS 10 00:00:37,380 --> 00:00:41,400 within the laptop videos section. 11 00:00:41,400 --> 00:00:44,460 Here's a table showing the amount of pins 12 00:00:44,460 --> 00:00:49,460 for each version of SODIMM DDR and some typical speeds. 13 00:00:49,950 --> 00:00:53,976 So we have DDR1 and 2 are 200 pin layouts, 14 00:00:53,976 --> 00:00:57,093 but you're not gonna see those very often. 15 00:00:58,530 --> 00:01:02,490 DDR3 and DDR4 are the ones you're gonna see more commonly. 16 00:01:02,490 --> 00:01:06,013 DDR3 is 204 pin, 17 00:01:06,013 --> 00:01:09,093 and you can see the notch here is to the left of center. 18 00:01:10,110 --> 00:01:14,250 DDR4 is 260 pin, and you can see the notches 19 00:01:14,250 --> 00:01:15,513 to the right of center. 20 00:01:16,440 --> 00:01:19,140 And some typical speeds for that DDR3. 21 00:01:19,140 --> 00:01:23,880 Typical speed, 1,333 megahertz, 1,866 megahertz. 22 00:01:23,880 --> 00:01:27,813 DDR4, typical speed, 2,400 megahertz. 23 00:01:28,740 --> 00:01:32,940 If you would like to see a SODIMM installation 24 00:01:32,940 --> 00:01:35,460 in something other than a laptop, 25 00:01:35,460 --> 00:01:38,700 then check out my NAS box installation, 26 00:01:38,700 --> 00:01:40,500 which is in this video series, 27 00:01:40,500 --> 00:01:43,923 and also its Article 2006 on my website. 28 00:01:46,410 --> 00:01:48,510 Okay, and here it is. 29 00:01:48,510 --> 00:01:52,983 To upgrade the RAM on this Synology NAS box, 30 00:01:54,000 --> 00:01:59,000 I used a four gigabyte DDR3L 1866 SODIMM. 31 00:02:03,120 --> 00:02:05,550 So this box comes with two gig. 32 00:02:05,550 --> 00:02:09,990 I put in a four gig module to bring it up to six gig. 33 00:02:09,990 --> 00:02:14,990 And it's funny, because this stick cost $37 34 00:02:15,349 --> 00:02:17,013 at the time of install. 35 00:02:18,162 --> 00:02:20,862 But as soon as a month, a month and a half after that, 36 00:02:21,760 --> 00:02:25,140 the same exact stick of RAM went as high as $107. 37 00:02:27,240 --> 00:02:31,050 Talk about volatility, and pun intended. 38 00:02:31,050 --> 00:02:33,480 Sometimes, you have to wait for the price 39 00:02:33,480 --> 00:02:35,310 to come down a little bit. 40 00:02:35,310 --> 00:02:38,250 Track the price online with various websites 41 00:02:38,250 --> 00:02:40,530 and make sure you're just not getting ripped off 42 00:02:40,530 --> 00:02:43,050 and paying twice or three times 43 00:02:43,050 --> 00:02:44,550 the amount that you should be. 44 00:02:45,720 --> 00:02:47,250 Sometimes you might have to wait a little bit 45 00:02:47,250 --> 00:02:49,050 or search around for the good price. 46 00:02:49,050 --> 00:02:53,130 So anyway, that's an install of that DDR RAM SODIMM 47 00:02:53,130 --> 00:02:54,483 in a NAS box. 48 00:02:57,000 --> 00:02:59,103 But generally, the installation of these, 49 00:03:00,005 --> 00:03:02,028 you could see what I was doing there. 50 00:03:02,028 --> 00:03:03,960 You can see I'm pressing down on the edges, 51 00:03:03,960 --> 00:03:07,170 and I show this in the laptop RAM install video as well. 52 00:03:07,170 --> 00:03:09,453 But it's a little bit different 53 00:03:09,453 --> 00:03:11,763 than your standard desktop DIMMS. 54 00:03:11,763 --> 00:03:14,163 With desktop DIMMS, you press down straight. 55 00:03:15,030 --> 00:03:18,480 So the RAM stick goes straight into the motherboard, 56 00:03:18,480 --> 00:03:20,193 and it's at a 90 degree angle. 57 00:03:21,381 --> 00:03:24,570 But with SODIMMS, it's a small area that you're working in. 58 00:03:24,570 --> 00:03:27,750 So you put them in at a 45 degree angle, 59 00:03:27,750 --> 00:03:30,600 and then you press down on both edges 60 00:03:30,600 --> 00:03:32,070 until they snap into place. 61 00:03:32,070 --> 00:03:35,073 And then they're flat against the motherboard. 62 00:03:35,940 --> 00:03:38,140 So a little bit of a different installation. 63 00:03:39,030 --> 00:03:42,060 Let's do a quick quiz question together. 64 00:03:42,060 --> 00:03:43,353 And the question is this. 65 00:03:44,215 --> 00:03:48,747 How many pins are on a SODIMM DDR3 memory module? 66 00:03:50,670 --> 00:03:53,733 And I'll give you a couple moments to look at the answers. 67 00:03:59,280 --> 00:04:02,553 And the answer is C, 204 pins. 68 00:04:04,098 --> 00:04:08,543 DDR3 SODIMMS, also known as DDR3L, have 204 pins. 69 00:04:09,930 --> 00:04:14,760 Here's the table of the SODIMM pin outs. 70 00:04:14,760 --> 00:04:16,863 I'm calling this the laptop version. 71 00:04:18,483 --> 00:04:22,860 And we have DDR1 and DDR2 at 200 pin, DDR3 at 204 pin, 72 00:04:22,860 --> 00:04:24,933 and DDR4 at 260 pin. 73 00:04:25,800 --> 00:04:29,828 Plus, here's the table for the desktop version. 74 00:04:29,828 --> 00:04:32,725 The longer DIMMS, the longer versions of DDR 75 00:04:32,725 --> 00:04:34,830 for desktop computers and their pin amounts. 76 00:04:34,830 --> 00:04:38,610 DDR1, which you'll rarely see, 184 pin. 77 00:04:38,610 --> 00:04:42,510 DDR2 and 3 are 240 pin, but they're different layouts. 78 00:04:42,510 --> 00:04:44,460 They're not compatible with each other. 79 00:04:45,555 --> 00:04:47,190 And DDR4 is 288 pin. 80 00:04:47,190 --> 00:04:49,884 So know the differences between the pins 81 00:04:49,884 --> 00:04:51,990 for the desktop version and the laptop versions, 82 00:04:51,990 --> 00:04:53,370 the SODIMMS. 83 00:04:53,370 --> 00:04:55,200 Let's look at the incorrect answers. 84 00:04:55,200 --> 00:04:57,150 A said 288. 85 00:04:57,150 --> 00:05:00,933 Well, that is DDR4 desktop version layout. 86 00:05:01,800 --> 00:05:03,900 Answer B said 184. 87 00:05:03,900 --> 00:05:06,633 That is desktop version DDR1. 88 00:05:07,680 --> 00:05:09,900 Answer D said 200 pin. 89 00:05:09,900 --> 00:05:12,810 That is laptop version DDR1 and DDR2. 90 00:05:12,810 --> 00:05:14,343 They both use 200 pin. 91 00:05:16,080 --> 00:05:21,080 And answer E said 240 pin, which is DDR3 desktop version. 92 00:05:21,120 --> 00:05:23,520 And that's where some of the confusion comes in. 93 00:05:24,534 --> 00:05:28,847 SODIMM DDR3 is 204 pin, 2 0 4. 94 00:05:30,120 --> 00:05:34,620 Desktop version of DDR3 is 240 pin. 95 00:05:34,620 --> 00:05:36,300 So that could be a little confusing. 96 00:05:36,300 --> 00:05:38,193 So memorize these tables here. 97 00:05:39,183 --> 00:05:43,807 But correct answer, C, 204 pins for DDR3 SODIMMS. 98 00:05:45,990 --> 00:05:49,627 All right, so there's a little bit about SODIMM DDR.