5:40 The big orthogonal wiggles in the "drunk" traces are indeed for length matching, but the smaller, angled wiggles are actually either for phase tuning or PCB weave compensation. It turns out that if you route a bus in a straight line and it happens to run parallel to the fibreglass weave within the laminate, it's likely for the signals to travel at different speeds even though they're the same length because of the differences in permittivity between the glass fibres and the epoxy resin. The wiggles in this design were added automatically by top-end PCB software from Cadence or Mentor (available as a totally unreasonably priced optional feature), but of course the cheap, obvious solution is to just ask your PCB fab to rotate the design a bit so that the weave doesn't run parallel to traces.
@sixstringedthing7 жыл бұрын
Fascinating. Thanks.
@Th3Su88 жыл бұрын
Okay everyone here is the deal. If you want to ensure your mail bag item gets opened in a timely manner, put it in a large box. It doesn't matter how small of an item you send. Dave will be sure to open it by the next mail bag to make room on the shelf. j/k That proto board is a pretty neat item. I may have to look into those.
@stephenoliveau8 жыл бұрын
love the AMD and Intel chips sitting side by side in that GPS. :D
@7head7metal78 жыл бұрын
"Who or what is Bob Lingen? Goodday Bob!" I loved that one! :D Böblingen is a city in Germany, the numbers next to the Name are the postal code. Wittig Test Technology seems to have gone bust.
@PeterBrockie8 жыл бұрын
The reason there are so many DC-DCs for a CPU isn't for different rails, it's for multiple phases to power the CPU. More supplies (with an offset) equal smoother power. I think 6-8 phases are pretty common now.
@EEVblog8 жыл бұрын
+Peter Brockie Didn't know the requirements were that heavy. Makes sense though.
@bearbin8 жыл бұрын
+EEVblog The current requirement is also ridiculous - around 120A at 1V.
@technodaz8 жыл бұрын
+Peter Brockie Yea Peter even my gaming mother board is 8+2 Phase, really handy for over clocking stability.
@arvind508 жыл бұрын
+Peter Brockie> Absolutely. I user to be a server designer earlier and 6 to 8 phases are pretty common - we had to do these many phases as the current requirements were obscene. The FETs on the top side are high side and low side and the bottom IR chips are likely redrivers. Looking at some of the bulk caps at 1.2V these must be 0.7~1V core rails
@kyoudaiken8 жыл бұрын
+Peter Brockie Look up the number of phases on my Asus X99-E WS board.
@CurtisBHertz8 жыл бұрын
Bahaha! Totally got a kick out of the batterizer joke. Catch ya on the next one! ✌🏻
@salvatoreshiggerino68108 жыл бұрын
1TB memory can be very useful. If you need to find things fast it helps to have your entire dataset in memory at all times. I'd love to have something like that to play with.
@YdenPL8 жыл бұрын
Why isn't laptop RAM bright? Because it's SO-DIMM. Oh, computer jokes. I love them.
@RnO7579n75788 жыл бұрын
lol
@ender_scythe28797 жыл бұрын
_writhes_
@RCTanksTrucks2478 жыл бұрын
Sweet! Man, I never get old watching these video's. Great stuff.
@The9gods8 жыл бұрын
I have always found electronics interesting, and I was first introduced to you back during the solar roadways. I found everything you said so interesting and you obviously knew exactly what you were talking about unlike some many people on KZbin (or in real life). I am now applying to become an electrician apprentice thanks to you.
@AureliusR8 жыл бұрын
+The9gods That doesn't make a lot of sense... electricians do completely unrelated stuff. Wiring houses, servicing appliances, etc.. sure you don't mean electronics engineering?
@The9gods8 жыл бұрын
I realize he is an engineer, I am just saying he inspired me to go out and do something. In this case an electrician. It was he knowledge of all things electricity (circuits, equations, and overall knowledge). I see bullshiters everywhere and Dave is one of the few people I have seen who really knows what he is talking about. I don't know a lot about circuits or amps/ohms/volt, but I do know enough to spot surface level bullshit. And Dave kept amazing me by showing me how little I really did know. I have used what he has talked about to show others around me the lies people try and sale them (Batterizer/solar roadways). I hope this clarifies what I meant.
@tomsawyer86458 жыл бұрын
Dave, that little 4 pin connector on the gps is a nmea 0183. It's a serial data interface, used to send the location data to another device. Back in the day (1993), I had Loran c on my boat, and we used the nmea 0183 port to send navigation data to the color (crt based) depthfinder screen. It was pretty gnarly at the time!
@ziginox8 жыл бұрын
+Tom Sawyer Don't forget it's also used to load maps and firmware! Good 'ol Mapsource. NMEA is fun for wardriving, too.
@tomsawyer86458 жыл бұрын
Ziginox Cool, I didn't realize that it was a two way interface. Good stuff. Watching Dave's video reminded me of how badass we thought it was back then, and where we are now! In terms of accuracy, power consumption, and real estate. I never bothered to hookup gps capability to my laptop for wardriving, Now that you mention it, I've got to add the lat / lon!
@ziginox8 жыл бұрын
Tom Sawyer You can shave a few feet off with WAAS-capable units, but these old 12-channel units still are very close. (16 ft III+ versus 13 ft GPSMap 60Cx) If you have an Android smartphone and your laptop has bluetooth you can use GPS2Bluetooth to send NMEA sentences over a bluetooth serial port as well.
@tomsawyer86458 жыл бұрын
Ziginox I like your solution. Only thing is, I've got an old (~2005) garmin gpsmap 76. It's a 12 channel, waas capable. It does ok, has 0183, but no bluetooth. None of my laptops has a serial port, and I don't have an Android smartphone, so looking to get a modern handheld gps, waas and bluetooth capable. Let me know if you have a preference on a handheld gps, as you know, there are quite a few out there! Thanks.
@ziginox8 жыл бұрын
USB-Serial adapters generally work well enough for these, especially if you're only doing NMEA data. If you happen to have an E-series Latitude, Dell makes a little wedge with serial and parallel ports that sticks on the bottom.
@bardrick42208 жыл бұрын
LOL I think we can call it the "Cheese" meter. It's Yellow, ships in vacuum pack and has mold growing on the battery!
@isenhertor8 жыл бұрын
lel
@ZomB19868 жыл бұрын
I guess there are multiple levels of 'cheap ass MMs': I have two identical looking MMs here, but they contain a lot more electronics. The wires broke multiple times from 'twisting' the pens because they're not glued in. Then a pin broke out of the pen grip because it's cheap ass plastic. Then one meter died, probably from Ampere overload. mA range has a glass fuse. It's quite accurate though and long battery life. Have to screw the entire ass bottom off to replace the battery.
@Nostalgianerd8 жыл бұрын
Man, it gives me the willies as you wield that knife about
@rich10514148 жыл бұрын
Nearly all those gps devices had 386 processors in them. I think it had to do with the developer kits for circuit designers for the proprietary gps chips came with 386 based diagrams, since the satellites themselves had 386 processors on board.
@mecha2078 жыл бұрын
Watching the mailbag is the best procrastination any engineering student can have.
@Gigabecquerel8 жыл бұрын
The "OsziFOX" wasn't a fail, since the iscilloscope was produced in germany, here we all oscilloscopes "Oszilloskope", short "Oszi".
@tarbecher8 жыл бұрын
+MrJumpersun "Oszilloskop" actually.
@Gigabecquerel8 жыл бұрын
No, we call oscilloscopes "Oszilloskope", but we call a single oscilloscope "Oszilloskop" ^^
@derdietz8 жыл бұрын
+MrJumpersun I would also say we say often "Oszi" instead of Oszilloskop = oscilloscope ;)
@mcconkeyb8 жыл бұрын
When you showed the corroded battery in that yellow meter, I nearly fell off my chair laughing. Pre-installed battery haha!
@ksphysicist8 жыл бұрын
That ProbeScope uses the small ground wire with the pin end to ground in the circuit under test. I usually power it with a 9v battery separate from the circuit. It does work, and works as a pen DVM.
@ksphysicist8 жыл бұрын
Should add, the pin goes in the ground socket on the back of the scope. I've never used the external trigger option, but it connects the same way.
@joshj887 жыл бұрын
I just got a RadioShack Probe Scope. it has a separate ground connector, you don't need to power it from the circuit under test. it's pretty nice for what it was/is. newer devices like to be annoying.
@scottfirman8 жыл бұрын
Those yellow multimeters are free at Harbor freight. They give crap away coupons to get you in the door. I usually just get the led flashlights anymore. Yes they come with battery included. when I go to flea markets they have bins full of crap like that. they try to sell them for a couple bucks each.
@tubical718 жыл бұрын
Thanx, Dave, for this one :) Especially these PerfBoards - ordered 10 of them....makes little designs very easy to setup. :)
@douggale59627 жыл бұрын
You would use 1TB of RAM for a VM host, SQL server, or file server. VMs use gigabytes of memory. Most VM workloads are I/O bound (reading/writing databases, and doing network I/O), so your main limiting factor for a VM host is memory.
@Willam_J8 жыл бұрын
Interesting story about those Necco Wafers... We have tollway systems here in the US. You basically have to stop every so often and pay for using the highway. Here in Illinois, a Chicago radio DJ discovered and announced that Necco Wafers could be used in the toll machines instead of coins. As you can imagine, the DJ got in trouble and the tollway system had it's own set of headaches trying to clean all the sticky machines and modifying them to reject the candy. The DJ's name was Steve Dahl. You can google it. It was quite a debacle
@davejones16938 жыл бұрын
Thanks for supporting the channel!
@NivagSwerdna8 жыл бұрын
Ah that GPS brings back memories. My first receiver was the II Plus (no mapping of any kind) bought sometime in late 90s in the days before GPS Selective Availability was turned off. Prior to SA deactivation (May 2000) geocaching was a huge challenge!!
@douro208 жыл бұрын
Garmin has always rolled their own GPS chipsets. The principal founder of the company, Gary Burrell, was an electronics engineer who developed the first practical portable GPS receiver at Magnavox.
@MagmaMac8 жыл бұрын
Last edit, I looked it up and well its a Server/Workstation Technology Extended form fact which is only used by Super Micro. Its size is massive at 457 × 330 and that its about 2x a normal ATX board (about 250 x 200 ish.)
@JuanHerrero8 жыл бұрын
They sell both of those multimeters on local chinese-run shops (Spain, but I guess it's the same everywhere). Also crappy irons and way-too-thick (2mm) rosin core solder. I keep one of each around, nice enough for messing around with and for low voltage jobs. On the analog one, notice how they reuse the cut out of the label on the front. That's efficient design and use of materials! I have done a couple mods to the yellow meter: The leads are absolute crap (and rated at 1000V!), I replaced the wires on mine once they broke with some ATX PSU ones. Also added a female barrel conector for those 9-12v wall warts with a filtering electrolitic cap (No diode or anything) Good enough to run it without the battery or charge the one inside a bit when the low battery indicator goes up. I once connected one directly to 240V AC mains in DC 20V mode (Shorted though laptop power adapter). Once my heart rate went back to the double digits, I checked it inside. A trace near the lead connectors had acted like a fuse, and the dial had gone sooty. The wires where hot. It would not turn on. Other than that it was fine. To the trash and bought a new one, it only cost me three euros fifty, no big deal. The battery itself was fine, odly enough. That trace fuse did its job splendidly. I also have a "Powerfix Profi" (Lidl Supermarket chain own brand). Made in Germany, cost under twenty euro, fairly good quality. It would be great if you did a teardown/review on it, I would send you mine but I am partial to keeping it.
@TheSkogemann8 жыл бұрын
@26:49 "Aw, the red zipper failed" - no sir, you did again... xD
@KeanM8 жыл бұрын
I've got one of those ZMD 407 scope probe IC's sitting here on my desk (fell out of a box onto the floor recently). I had looked at building a Compaq iPaq Pocket PC "sleeve" scope using one... back in the day, it seemed like a good idea!
@mcg67628 жыл бұрын
Many of those DC/DC converters are multi-phase using up to 12 inductors per voltage rail
@cipmars8 жыл бұрын
Dave, what kind of phone do you have? Please make a tear down video of it!
@SaberusTerras8 жыл бұрын
That AMD mobo is a beast, 1TB of RAM and up to 64 Bulldozer cores. I think it's still the best you can get in Opteron, at least until Zen finally drops.
@rocketman221projects8 жыл бұрын
+Saberus Terras That thing will heat your whole house and dim your neighbors lights too.
@SaberusTerras8 жыл бұрын
I know. But the Intel equivalent Xeons would do the same. These came out just before a massive reduction in power requirements and heat production in the new(er) models. And that power to heat ratio drop couldn't come soon enough, with so many datacenters switching to blade servers, the higher density would have been murderous to keep cool otherwise.
@0meat8 жыл бұрын
I thought the motherboard was pretty sweet, my wife was less impressed.
@JanicekTrnecka8 жыл бұрын
+Sci-Twi Where she learned that quote? Because my girlfriend uses similar one...
@ValleyRC8 жыл бұрын
I instantly recognised the remote from the CD walkman/burner hybrid, my old "netMD" minidisc player has the same remote. It seemed so advanced at the time with it's USB dock etc but it aged VERY quickly against emerging flash and HDD players. Still have it somewhere though, gorgeous sound quality.
@Kek5kopF8 жыл бұрын
Wow, the prototype board seems to be really handy.
@shana_dmr8 жыл бұрын
Looking at these wonderful specs of that hybrid analog-digital meter I remembered I used to have one of tthese cheapie digital ones that in manual stated it has "3 1/2 inch digits" - that would be nice readability for pocket multimeter:)
@simon77198 жыл бұрын
One use for a terabyte of memory is for in-memory caching, for instance using memcached.
@MasterFX20008 жыл бұрын
You have to take a look at Fujitsu Motherboards... all single side mounting, they know how to design a motherboard for minimum stress for components at reflow process.
@wolfwaya7 жыл бұрын
Sony burner/player: the downside is the cd media changes alot over time so it's unlikely new blanks will burn right with it's current firmware. you probably want to look for the hard-to-find 640-meg cd's and not the standard 700-meg ones. I had to full-screen it to see the label for your Jamaica Plain. That's out in the Boston area, about 3.5 hr drive from me.
@maxsnts8 жыл бұрын
1Tb RAM is communally used on Virtualization Servers (Hyper-V, VMWare, etc)
@n1elkyfan8 жыл бұрын
I also know things like verifying chip designs take a lot of memory.
@sc0tte1-4168 жыл бұрын
When it comes to ruining a single pin on those motherboards from my experience the processor still works with two broken pins. Not sure what sort of a performance hit it takes but I didn't notice anything.
@nickguy68208 жыл бұрын
Couple comments on the motherboard: The yield thing is exactly what I think of when I see these boards. OTOH, boards like this usually come in a few variations, with and without certain add-on features (like RAID, multiple NICs, etc.) So if the RAID controller ASIC doesn't pass QC, take it off and sell as a non-RAID version rather than scrapping the whole board. RAM -- whaaat iiis it goood for (absolutely nootthhin). Two things, mostly: 1) Scientific apps, modeling, and big data. Keeps the dataset in memory. 2) Virtualization. With 4 multi-core CPUs and 1TB of RAM, you can virtualize your Active Directory domain controllers, email, web servers, applications servers, print servers, file servers, app servers, dev and sandbox servers, etc. Interestingly, the more CPU/RAM you have, the less useful those multiple SATA ports get. At some point, if you're virtualizing 100 servers on one physical blade, you don't want your storage local anymore. Because that's too many eggs in one basket. You want at least two physical blades for redundancy and load balancing, which means you need the storage to be shared -- via iSCSI or Fibre Chanel for example -- on its own redundant storage array. This also allows the hypervisor to move a VM from one physical host to another, while the VM is running. (e.g., vMotion.) Also, I don't know very much about AMD CPUs, and I haven't looked at this board in particular, but I would suspect those "north and south bridge" chips aren't that. North bridges have moved into the CPU for the most part because the CPU-to-RAM interface is getting too fast to decouple easily. Those ICs could be PCI bridges, RAID or network controllers, or more traditional south bridge tasks like USB, etc. I could be totally wrong, too.
@microwar8 жыл бұрын
love the batterizer joke on the end. been very quiet from them latly.. 5 monts on their youtube "fan" page.
@esnam65578 жыл бұрын
Thanks, the server motherboard specs is really impressive. I like to make one myself for simulation purposes if it is not very expensive.
@initialb1238 жыл бұрын
what's with the colour wheel @ 35:51 ? i don't see what it does other than add internal bling...?
@markallen2828 жыл бұрын
Id imagine that the rubber grommet things on the shielding of the walkman would probably be there to minimize vibrations to ensure you don't mess up your disks.
@ppdan8 жыл бұрын
Looks like a SSI MEB size board. Have a few older quad Opteron boards somewhere taking dust.
@Jedda738 жыл бұрын
It doesn't matter how many of these I watch, I flinch every time Dave slashes his knife in my direction
@KennethScharf8 жыл бұрын
Love the pre-leaked battery! Guess that was a Harbor Freight reject!
@noujaadw8 жыл бұрын
love that i386 QFP chip in the GPS, you should cut i a SDRAM to see the multi-layer PCB layout and maybe explain a bit about the making process of those things (macro lens will come in handy)
@douro208 жыл бұрын
The company who made the Probe Scope, Wittig Testelektronik, is still around, and they have a successor to the Probe Scope (original name osziFOX) called the KeyScope.
@AMDJunkie8 жыл бұрын
i would cut out a piece of clear lexan to use as the face of that IBICO calculator to show off that beautiful vacuum tube!
@spannungsquellestromquelle45728 жыл бұрын
Böblingen is a city in Germany.
@hinzster8 жыл бұрын
Ok, the Böblingen question is probably thoroughly answered already. I had one of those Sony discman-burner-thingies, and my kids used it in its discman personality until the lid lock broke (and even a bit after that, with a rubber band to hold the lid in place). The probe scope - well, I wouldn't want to count too much on that 5MHz effective bandwidth advertised on the box, given that the serial connector isn't even specified for more than 20k bits/s (at least in the original spec from 1969), and the highest I've seen from RS-232 is 230k bits/s. 5MHz, yeah. And the shrink-wrapped multimeter with the crusty battery... well, at least it only cost 60 cents :D
@ChrisCebelenski8 жыл бұрын
1TB memory = good for in-memory databases and caches (Redis, Memcached,etc). That's assuming you have the I/O capacity to the network to support it.
@leisergeist8 жыл бұрын
What, did the multimeter shipping container from China fall in the ocean and have to be fished out?
@jjppmm298 жыл бұрын
you opened that up and I knew exactly what it was, it is actually a sister or cousin of the KGPE-D16 I am using now with a max of 64 cores something like 128+mb of CPU cache and something like 4Tb of ram, you can actually see the cut out where the Pike would go, which is a special RAID controller for these AMD boards.
@SisterMaryTeriyak8 жыл бұрын
That motherboard would be so nice to have, prefect for running all the VM test labs I need to run..
@henningrumpf46907 жыл бұрын
+EEVblog The scope is likely made by Keysight. They got a facility in Böblingen, Germany.
@rubusroo688 жыл бұрын
awesome mailbag, 10/10
@nickfries43178 жыл бұрын
Hi Dave, that large motherboard form factor is probably SSI EEB (Enterprise Electronics Bay) which is common for workstations and servers.
@nickfries43178 жыл бұрын
@EEVBlog I also must correct you Dave - those two chips at the bottom (SR5690/SR5670) would not be considered part of the northbridge but in fact make up the southbridge. The northbridge is integrated onto the CPU die these days. AMD processors have a crossbar switch (think of it like a ethernet switch) with 3 or more links connecting the sockets and the southbridge - the southbridges will have one or more hypertransport links depending on the implementation - it's pretty flexible and how these are connected / switched depends on the implementation. The switching is configured by the firmware and includes the socket topology (node 0 connected to node 1 on link 1, ect.) But yea, what you would think of as a traditional northbridge (memory controller) is now on die sitting on top of that switching technology and those IO devices are considered southbridges or IO companion chips. ;)
@nickfries43178 жыл бұрын
(In fact - those wiggly lines / differential pairs you show on the underside going between the sockets are probably the hypertransport links connecting the nodes)
@AureliusR8 жыл бұрын
That protoboard is a decent idea, but what happens when I want to route more than one signal on one side of the chip? You just end up shorting all the pins together? You'd end up with the knife out anyway to cut away the connections. I'd rather just have a plain old double-sided protoboard, or get PCBs made. But good effort, and I hope someone finds it useful. I think it would be more useful in smaller pieces, so you can route out like an 8-pin dip or something.
@AureliusR8 жыл бұрын
+Aurelius R Oh no... he got it patented. FAIL.
@griffgriffo97468 жыл бұрын
I love that analogue meter..Best job of cost cutting and parts reduction I have ever seen...Would love to of seen it trying to measure 1000 V..
@Matlalcueitl8 жыл бұрын
I love that long life 6F22. A thing of beauty
@RCShufty8 жыл бұрын
Why would you need up to 1TB of RAM? Virtualization host (for running multiple virtual machines).
@ernststavroblofeld19618 жыл бұрын
Better a ¢60 multimeter, than none.
@AMalas8 жыл бұрын
ive used the last analog multimeter for a grade 10 project where it was measuring current. it showed how relays take huuuge amounts of current comparatively with the 10 othet circuits (had 11 circuits on it each doing quite a diffrent job. all on one power rail with the switch on negative and this joke on positive) it was also intresting to note that the Ti SN74LS08N And gate took almost 100 mili amps to operate a 15 mili Amp led!! (which I verified with my UniT ut61c to be 108mA, that meter being my first ever that I own and use!) I wish I could send you some photos some day but ive got lots of stuff to do and the thing has seen better days than the teacher's basement...
@Mayo-dj6ew8 жыл бұрын
the sad part is I have a rebrand of that digital multimeter.. and it cost me ~$12 USD in my country
@AureliusR8 жыл бұрын
Funny, in all the hundreds of packages I've opened, I think the pull-tab has only failed maybe once. They always work just fine for me...
@scottfirman8 жыл бұрын
what do you do with a big old failed motherboard that size,do you part it out?
@johnnychang42338 жыл бұрын
Not pretty sure that server mainboard is totally scrap. At least just one little capacitor fault could render the whole thing unstable and buggy.
8 жыл бұрын
in the industry we used to call that form factor "the monster" lol it goes in a clear top desktop style case i think and it remainds me of the boards with a split down the middle for redundancy but that looks all built in non redundant lol
@RagingDong8 жыл бұрын
Could be used for graphical rendering, or data processing.
@shmehfleh31158 жыл бұрын
Well since you asked, a VMware environment would make good use of four multi-core CPUs and 1 TB of RAM. These days, the ratio of VMs to physical servers has gone through the roof.
@HambertHM8 жыл бұрын
Oh god a Sunma was my first multimeter. Shame on me
@richfiles8 жыл бұрын
I wanted that "scope" probe SO BAD when I was young! XD
@WreckDiver998 жыл бұрын
Dave, since you like that RS Probe Scope so much, I guess you won't need your other scopes any longer. I have a good home that one could go to. :)
@fe12_125 жыл бұрын
Not only the analogic multimeter said digital but it also had multimeter written in Spanish like mult metro when it actually is multímetro
@guslat8 жыл бұрын
nice, i'm not the only one from latvia who watch you, greetings :)
@ggklncnoifewAsdarp8 жыл бұрын
Would have loved to see more of that printer, preferably in action. It deserved more than 2 screen seconds.
@thecombatengineer70697 жыл бұрын
I fell out of my chair laughing when you opened the 1000A multimeter. Need a couple for the lab, they are AWESOME!
@niiidar8 жыл бұрын
Repair video for the motherboard? :D
@VoidHalo6 жыл бұрын
I live in Canada and never heard of Nekko wafers until a few years ago from my Yank friends. I love candy, so I was bummed out that they're not sold here. Then finally a couple of years ago I found some in a store with specialt imported candy. I absolutely loved them! Unfortunately I can't eat them anymore as a result of breakinh or losing most of my molarsand I think chewing them with my front teeth would be horrible. Still worth it though.
@produKtNZ8 жыл бұрын
The server motherboard is either a BTX or E-ATX - Difficult to tell accurately though
@Unholybeef8 жыл бұрын
+produKtNZ It's a bit larger than HPTX, much bigger than BTX or E-ATX.
@produKtNZ8 жыл бұрын
+Jaymes Stewart Hmm, well short of pulling my BTW mobo out, I couldn't tell :P
@Unholybeef8 жыл бұрын
produKtNZ I looked it up and it's using a SWATX form factor :D It's a behemoth.
@produKtNZ8 жыл бұрын
+Jaymes Stewart O__O'
@therealpanse8 жыл бұрын
Böblingen is a city near Stuttgart. Actually about 20km from where I am right now xD
@therealpanse8 жыл бұрын
+therealpanse seems like they're still around... www.wittig.it/
@SciPunk2158 жыл бұрын
Each of those CPU sockets can support a 16 core CPU. Not too shabby... if it worked.
@cerberes8 жыл бұрын
I still have one of those probe scopes. Haven't used it in years.
@zfrenchy17168 жыл бұрын
Where can I buy the Perf+2 protoboard, I didn't find on Ebay or Amazon. link ? Sorry by advance if my question was already answered, but it's to many comment to check it, price of your success Dave.
@benwang50028 жыл бұрын
+Eric Teuh It is a crowdfunding campaign here:www.crowdsupply.com/ben-wang/perf-2
@rocketman221projects8 жыл бұрын
You should load up the software for that radioshack scope thing and test it out.
@RoboticNerd8 жыл бұрын
The US (or NTSC) standard has a whole additional 10FPS
@FSdarkkilla8 жыл бұрын
Typical needs for 1 TB RAM? DNA analysis and simulation. It's way faster if you can have the whole sequence in RAM instead of having to go like "load a chunk from disk" -> "analyze it" -> "repeat".
@tomlindo28638 жыл бұрын
+FSdarkkilla This would make for a killer virtualization hypervisor. So this 1 board could be running hundreds of server VMs.
@FSdarkkilla8 жыл бұрын
+Tom Lindo I have some with 128 GB, 256 GB and 512 GB running in a Proxmox VE cluster. Definitely RAM is more important than CPU for most usecases when it comes to virtualization.
@frostiimoon8 жыл бұрын
Supermicro have their own "standard" motherboard sizes
@Megabobster8 жыл бұрын
Leaky mercury battery. Sounds like fun!
@tm80notgoodwithnames588 жыл бұрын
+Megabobster mercury??? where there is mercury
@Kalvinjj8 жыл бұрын
+TM80 NotGoodWithNames Just in case, assume the worst. One can not trust that thing
@tm80notgoodwithnames588 жыл бұрын
I didn't notice it was mercury but it wouuld be as amalgam, so the mercury could be on that metal
@Kalvinjj8 жыл бұрын
TM80 NotGoodWithNames Nah I don't know if it is or not, just like: it's leaky and random battery, on a meter that costs less than a decent battery = stay away just in case!
@Megabobster8 жыл бұрын
TM80 NotGoodWithNames At the end of the video, that 9V battery that looks like crap (and is the thumbnail) says it contains Hg, aka Mercury. Could be amalgam, could be safe, I wouldn't even vaguely risk it and I would 100% avoid handling it and take it to hazmat disposal.
@ljmike12048 жыл бұрын
if its a server main boar it must be under the 19" since the rack space already is 19"
@pufero18 жыл бұрын
Dave you have reballing statitions for bga chips and cpu sockets i just change one lga socket. .zhuomao got a "cheap" decent machines for do the work.
@andersvandegevel83555 жыл бұрын
Haha I lusted after one of those Tandy probe scopes back in the day. Probably just as well I couldn't afford one, as I would certainly have poked it somewhere I shouldn't xD
@asebaninja8 жыл бұрын
Don't the electrons pour out of the corners when they wiggle the traces?
@EEVblog8 жыл бұрын
+#01DF01Seba Abdur-Rehmaan Not if they are nice and smooth!
@asebaninja8 жыл бұрын
EEVblog Thats a relief.
@therestorationofdrwho18658 жыл бұрын
Would games still work really well on this?
@RoboticNerd8 жыл бұрын
I think that that motherboard is for quad AMD Opteron CPUs