VehiclesFashionRecipesBlogsHuntTravelsSportFunHandmadeITEducation
Mini-Games
x

x
zakruti.com » IT - Software » Gamers Nexus
We Have AMD's Top-Secret Stardust System Tear-Down & Hands-On

We Have AMD's Top-Secret Stardust System Tear-Down & Hands-On

FBTwitterReddit

video description

Rating: 4.5; Vote: 2
We stumbled across mysterious AMD Load Testing hardware online, codenamed Stardust, so we bought it to study and open up internally. This device has a ton of interesting history for Threadripper and Epyc CPU simulation and load testing, it's also extremely rare outside of AMD test labs around the world. SISSYPUSS: It needs a nominal 12v at about 50mah to start. Bought a junk board from ebay then started saying stuff and covered it with secret sauce ...like a biker-pretender. Hmm yeah. Just stop, huge lack of experience is obvious. If AMD want's it they will come rip it from your cold dead hand. Lol
Date: 2022-06-11

Comments and reviews: 9


I think it is pointless to hide stuff like this. Concurents will still get info about them, or just plain doesn't need that. Its not like someone would try to reverse engineer dummy load, it is easier to design one from scratch, than reverse engineer existing one. Maby at development phase to not reveal upcoming products, but after they are in market, whats the point of hiding that?
P.S.: Getting power supplies for them is trivial, look at bulk caps in power circuits, if they are 16-20V jobies, try 12VDC (most likely), 10VDC caps try 5V, 25V caps - try 19V, 35V caps - try 24V. Polarity can be deducted from same bulk cap orientation. Always start from lower voltage if unsure. Still prety sure it will be 12VDC most likely. It is always safer to try with lab power supply, set current limit to about 100mA and try most sensible voltage. At such low current there is very little risk to burn something. if it is not instant overload as unit tries to start, it is safe to increase current, guessing for stand by power up 0,5A is more than enought as with 12V it is around 6W. More curent is needed only if you try to turn on dummy load cell.

reply

First off, I really appreciate that you show engineering perspectives of computer hardware and I love your videos Steve! Just spitballing here, but it looks like J8 or J6 is the JTAG header for that FPGA, and I didn't see an external PROM off the bat, so I'm assuming that family has internal flash. But given you have the programming pod and license for Impact software, you could rip the code for that FPGA. I'm assuming the heatsinked part is going to be the microcontroller for the board, did you ever remove it for curiosities sake?
reply

This was the most boring thing I've seen in a long time. No wonder you people have no clue in business. How is this information making anyone's life better? Why should we care about this? Not supposed to have it ... that's clickbait. If you were not supposed to have it, it would be illegal to have it. You are not engineers because you're not thinking like engineers. You may be good testers, but this is play pretend engineering.
reply

In software testing we'd call these mock objects, or stubs and drivers (a stub accepts input according to the interface/spec while a driver produces output also according to the interface/spec. A mock can do both of these and may contain some limited logic for producing valid output when given predefined input).
It's really cool to see the hardware equivalents.

reply

You test psu and unable to power up dc device(facepalm).
open one of the devices and track power socket to determine where is ground pin. Maybe it would be market, maybe you will determine by finding ground on pcb and checking continuity with tester and a socket. Then power it on with variable psu, limit current and increase voltage until unit it powers on

reply

Ok without even watching I resized what those are and they are cool AF! Products like these and dev kits are so amazing to me. When people complain about the price of a motherboard all I can think is do you have any idea how many billions of dollars of investment it took to create that? Awesome stuff.
reply

AMD Stardust could be a cool name is AMD ever decide to produce customer-facing systems. I they're the only (of the big 3) one left that doesn't have a console/android box/NUC without. I know they collab'd with Intel on on a nuc years ago. Do AMD have a no-compete clause with Sony and Micorsoft?
reply

I love this kind of content, things manufacturers use to test/design their products. I wonder why AMD is so secretive about it if Intel offers their tests kits in the open, it's not like those kits will give the competition the data on how their cpus are manufactured
reply

Really cool getting to see some of the debugging hardware. It would be nice if AMD could provide some of this for older products, just to see how the sausage was made. However I'm sure many of the things shown here are still considered trade secrets.
reply
Add a review, comment






Other channel videos