The Modular PC: Intel’s new Element brings Project Christine to Lifeby Dr. Ian Cutress on October 7, 2019 3:55 PM EST
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- Compute Element
- Project Christine
- Intel Element
Way back at CES 2014, Razer’s CEO introduced a revolutionary concept design for a PC that had one main backplane and users could insert a CPU, GPU, power supply, storage, and anything else in a modular fashion. Fast forward to 2020, and Intel is aiming to make this idea a reality. Today at a fairly low-key event in London, Intel’s Ed Barkhuysen showcased a new product, known simply as an ‘Element’ – a CPU/DRAM/Storage on a dual-slot PCIe card, with Thunderbolt, Ethernet, Wi-Fi, and USB, designed to slot into a backplane with multiple PCIe slots, and paired with GPUs or other accelerators. Behold, Christine is real, and it’s coming soon.
‘The Element’ from Intel
Truth be told, this new concept device doesn’t really have a name. When specifically asked what we should call this thing, we were told to simply call it ‘The Element’ – a product that acts as an extension of the Compute Element and Next Unit of Computing (NUC) family of devices. In actual fact, ‘The Element’ is a product of the same team inside Intel: the Systems Product Group responsible for the majority of Intel’s small form factor devices has developed this new ‘Element’ in order to break the iterative design cycle into something that is truly revolutionary.
(This is where a cynic might say that Razer got there first… Either way, everyone wins.)
What was presented on stage wasn’t much more than a working prototype of a small dual-slot PCIe card powered by a BGA Xeon processor. On the card was also two M.2 slots, two slots for SO-DIMM LPDDR4 memory, a cooler sufficient for all of that, and then additional controllers for Wi-Fi, two Ethernet ports, four USB ports, a HDMI video output from the Xeon integrated graphics, and two Thunderbolt 3 ports.
The M.2 slots and SO-DIMM slots are end-user accessible, by lifting a couple of screws from the front. This is in no-way a final design, but just a working prototype. The exact cooler, styling, and even the product name is in no way final yet, but the concept is solid.
The product shown used a Xeon BGA processor, however it was clear that this concept can be moved into consumer processors as well. As with the current NUC family, this would likely migrate into the mobile processors rather than BGA versions of desktop processors, and the fact that there are Thunderbolt 3 ports on the side would hint towards 10th Generation Ice Lake, however Intel stated that all options at this design stage are open at this point.
This whole card has a PCIe slot, which we believe at this time to be PCIe 3.0. It stands to reason that if this Element becomes a generational product, then it would migrate to PCIe 4.0 and PCIe 5.0 / CXL as and when Intel moves its product families onto those technologies. Intel is planning to bundle the card to partners with a backplane – a PCB with multiple PCIe slots. One slot would be designated the master host slot, and the CPU/DRAM/Storage combination would go in that slot. Discrete GPUs, professional graphics, FPGAs, or RAID controllers are examples of cards that could fit into the other slots.
In these configurations, in every instance the CPU compute card is the host, rather than an attached device. Intel does offer CPUs-on-a-card-as-a-device, which is Intel’s Visual Compute Accelerator (VCA), which pairs three Xeon E3 CPUs onto a slave card that is accessed from the host. We asked if Intel has plans that its Element cards could be used as a slave card in this configuration, but Intel stated there are no current plans to do so.
The backplane would also be the source of power. A direct PSU into the backplane would serve as offering 75W to each of the PCIe slots, as well as any other features such as system fans or additional on-backplane controllers. This power could come from a PSU, or from a 19V input, depending on the exact configuration of the system. The Element card we saw had an additional 8-pin PCIe power connector, suggesting another 150W could be powered to the card, giving a total of 225W for CPU, DRAM, and storage: which would beg the question if the card could support something like a Core i9-9900KS.
On the topic of cooling, the demo unit shown had very much a basic cooling setup. As stated, Intel said that this is in no-way the final version of what Intel is trying to do here. When asked if it would be easy enough for users to liquid cool the CPU, the Intel spokesperson said it would be customizable, though it would be up to component manufacturers to enable that themselves.
For board partners, Intel stated that they are not seeing this Element form factor as something that partners would create themselves. In essence, there would be no AIB partners like in the GPU market, but for OEMs that to build pre-built systems, they could take the Element card and customize on top of the Intel design, as well as develop their own backplanes and such.
Ultimately with the Element, Intel wants to make it easier for integrated system upgrades. Customers can keep the chassis, keep the system setup, keep the backplane, and all they would do is change the Element card to get the latest performance and features. This was the ultimate goal with something like Razer’s Project Christine, and is certainly something to work towards. However, by keeping the storage on the Element rather than having it as a separate add-in card, this is somewhat limiting as it would require swapping the drives out. This might not be much of an issue, if one of the PCIe slots on the backplane was used for M.2 drives (or even with drives on the backplane itself).
Intel stated that the plan for the Element to see daylight in the hands of OEMs would be sometime in Q1 2020, likely at the back-end of Q1. Our spokesman said that exact CPUs and configurations are still in flux, and as one might expect, so is pricing. Exactly how the Element will be named is a mystery, and how it will be packaged either to end users or OEMs is a question to answer.
Given that this is a product from the same group as the NUC, I highly expect it to follow the same roll-out procedure as other NUC products. Personally, I think this form factor would be great if Intel could standardize it and open it up to motherboard partners. I imagine that we might see some board partners do copy-cat designs, similarly with how we have several variations of NUCs on the market. Intel stated that they have a roadmap for the Element, which is likely to extend over multiple generations. I theorised a triple slot version with an Xe GPU, and the idea wasn't dismissed out of hand immediately.
We asked about RGB LEDs. The question recieved a chuckle, but it is going to be interesting whether Intel limits the Element to a professional environment or opens it up to more run-of-the-mill users.
We’ve politely asked Intel to let us know when it is ready so we can test. Our Intel spokesman was keen to start sampling when it is ready, stating that sampling budget in this context is not a problem. I think we’ll have to hold them to that.
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- Memory Frequency Scaling on Intel's Skull Canyon NUC - An Investigation
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Threska - Wednesday, October 9, 2019 - link" On the card was also two M.2 slots, two slots for SO-DIMM LPDDR4 memory, a cooler sufficient for all of that, and then additional controllers for Wi-Fi, two Ethernet ports, four USB ports, a HDMI video output from the Xeon integrated graphics, and two Thunderbolt 3 ports."
Approaching from different directions. SBCs and it's like, the Raspberry Pi are approaching the problem from a different direction, but a similar goal. More ports and one gets closer.
zmatt - Wednesday, October 9, 2019 - linkSo it's the return of S-100. This idea is literally older than the PC is. Many of the first home computers like the Altair used this concept. It has some advantages and some disadvantages. The biggest pro is that the level of expandability and versatility is greater than conventional ATX. You aren't tied to one motherboard. The downside is that its far less space efficient. Now everything is a card and the motherboard is simply a bunch of slots. Not great on room, but its a simpler layout. For enthusiast and enterprise its better but for consumer machines its likely worse.
sing_electric - Wednesday, October 9, 2019 - linkSo the advantage is that you don't have to shop for a motherboard... on the other hand, you lose the flexibility of having a board with the # of RAM, NVMe, and USB (including Thunderbolt) slots you want, and probably severely limit the CPU and cooling options you can have, since all those (except maybe USB if you nix Thunderbolt) will need to be built in to the 'host' Element.
So this is a great solution that's not uncommon in servers, but for consumer PCs, is really only useful if your use case is "I can't survive off integrated graphics, but don't want to have to deal with a motherboard."
JohnMD1022 - Thursday, October 10, 2019 - linkNothing revolutionary at all.
The Altair 8800 was a backplane-based S-100 computer, as were many of the early systems.
Check the Byte archives for articles relation to the Cromemco S-100 systems used by Jerry Pournelle.
zodiacfml - Thursday, October 10, 2019 - linkYes but should be turned around where the focus on large/aftermarket cooling is on the GPU. Recycle or reuse existing CPU coolers for GPUs.
Targon - Friday, October 11, 2019 - linkIntel may have gotten a clue that AMD supported the Gen-Z consortium for a good reason, so now wants to figure out something to compete conceptually. Server racks have used blades for a long long time now as well, so moving that concept to add-in cards for EVERYTHING isn't terribly innovative.
Microbits - Saturday, October 12, 2019 - linkThis would make the perfect upgrade fit the old Mac Pro 5,1 build it on to a tray pop it in you will be able to upgrade your Xeon past the x5690 to newer fast models with more cores and treads at a fraction of the cost of a new Mac Pro there might be a trick in the old dog yet.
2tacos99cents - Sunday, October 13, 2019 - linkUmm... Am I in the upside down? Why does Intel think technology from decades past is somehow the technology of the future? This is bizarre.
peevee - Monday, October 14, 2019 - linkHow is it modular when there is everything but video on the card itself?
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