Just like with pre-touchscreen cellphones having fancy innovative features that everyone’s forgotten about, there’s areas that laptop manufacturers used to venture in but no longer dare touch. On Twitter, [Kiwa] talks a fascinating attempt by Dell to make laptops with user-replaceable CPU+RAM modules. In 2008, Dell released the Inspiron Mini 1210, with its CPU, chipset and RAM soldered to a separate board in an “extended SODIMM” form-factor – not unlike the Raspberry Pi Compute Modules pre-CM4! Apparently, different versions of such “processor cards” existed for their Inspiron Mini lineup, with varying amounts of RAM and CPU horsepower. With replacement CPU+RAM modules still being sold online, that makes these Dell netbooks to be, to our knowledge, the only x86 netbooks with upgradable CPUs.
You could try and get yourself one of these laptops or replacement CPU modules nowadays, if you like tinkering with old tech – and don’t mind having a subpar experience on even Linux, thanks to the Poulsbo chipset’s notorious lack of openness. Sadly, Dell has thoroughly abandoned the concept of x86 system-on-module cards, and laptops have been getting less modular as we go – we haven’t been getting socketed CPUs since the third generation of mobile Intel boards, and even RAM is soldered to the motherboard more and more often. In theory, the “CPU daughterboard” approach could improve manufacturing yields and costs, making it possible to use a simpler large board for the motherboard and only have the CPU board be high-layer-count. However, we can only guess that this wasn’t profitable enough overall, even with all the theoretical upsides. Or, perhaps, Google-style, someone axed this project internally because of certain metrics unmet.
If you think about it, a laptop motherboard is a single-board computer; however, that’s clearly not enough for our goals of upgradability and repairability. If you’re looking to have your own way and upgrade your laptop regardless of manufacturer’s intentions, here’s an old yet impressive story about replacing the soldered-in CPU on the original Asus EEE, and a more recent story about upgrading soldered-in RAM in a Dell XPS ultrabook. And if you’re looking for retrocomputing goodness, following [Kiwa] on Twitter is a must – last seen liveblogging restoration and renovation of a Kaypro someone threw out on the curb.
It should probably go without saying that the main reason most people buy an electric vehicle (EV) is because they want to reduce or eliminate their usage of gasoline. Even if you aren’t terribly concerned about your ecological footprint, the fact of the matter is that electricity prices are so low in many places that an electric vehicle is cheaper to operate than one which burns gas at $2.50+ USD a gallon.
Another advantage, at least in theory, is reduced overal maintenance cost. While a modern EV will of course be packed with sensors and complex onboard computer systems, the same could be said for nearly any internal combustion engine (ICE) car that rolled off the lot in the last decade as well. But mechanically, there’s a lot less that can go wrong on an EV. For the owner of an electric car, the days of oil changes, fouled spark plugs, and the looming threat of a blown head gasket are all in the rear-view mirror.
Unfortunately, it seems the rise of high-tech EVs is also ushering in a new era of unexpected failures and maintenance woes. Case in point, some owners of older model Teslas are finding they’re at risk of being stranded on the side of the road by a failure most of us would more likely associate with losing some documents or photos: a disk read error.
Continue reading “Worn Out EMMC Chips Are Crippling Older Teslas”
At this point, you’ve almost certainly heard about the Atomic Pi. The diminutive board that once served as the guts of a failed robot now lives on as a powerful x86 SBC available at a fire sale price. How long you’ll be able to buy them and what happens when the initial stock runs out is another story entirely, but there’s no denying that folks are already out there doing interesting things with them.
One of them is [Jason Gin], who recently completed an epic quest to add a PCI Express (PCI-E) slot to his Atomic Pi. Things didn’t exactly go according to plan and the story arguably has more lows than highs, but in the end he emerged victorious. He doesn’t necessarily recommend you try the same modification on your own Atomic Pi, but he does think this sets the stage for the development of a more refined upgrade down the line.
[Jason] explains that the board’s Ethernet controller was already communicating with the Intel Atom x5-Z8350 SoC over PCI-E, so there was never a question about whether or not the modification was possible. In theory, all you needed to do was disable the Ethernet controller and tack on an external PCI-E socket so you could plug in whatever you want. The trick is pulling off the extremely fine-pitch soldering such a modification required, especially considering how picky the PCI Express standard is.
In practice, it took several attempts with different types of wire before [Jason] was able to get the Atomic Pi to actually recognize something plugged into it. Along the way, he managed to destroy the Ethernet controller somehow, but that wasn’t such a great loss as he planned on disabling it anyway. The final winning combination was 40 gauge magnet wire going between the PCB and a thin SATA cable that is mechanically secured to the board with a piece of metal to keep anything from flexing.
At this point, [Jason] has tested enough external devices connected to his hacked-on port to know the modification has promise. But the way he’s gone about it is obviously a bit temperamental, and far too difficult for most people to accomplish on their own anyway. He’s thinking the way forward might be with a custom PCB that could be aligned over the Ethernet controller and soldered into place, though admits such a project is currently above his comfort level. Any readers interested in a collaboration?
Like most of you, we had high hopes for the Atomic Pi when we first heard about it. But since it became clear the board is the product of another company’s liquidation, there’s been some understandable trepidation in the community. Nobody knows for sure what the future looks like for the Atomic Pi, but that’s clearly not stopping hackers from diving in.
For years now, people have been trying to stuff an Intel processor on a credit card sized board. An x86 board that can fit in your pocket is an intriguing device – after all, that’s what Gumstix, the forerunner of the Raspberry Pi, were. Efforts to put x86 on a dev board have included the Minnowboard, the Intel Galileo and Edison, and even the Intel Compute Stick. These have not seen the uptake you would expect from a small x86-powered board, but that tide may soon turn. The UP board is exactly what you would expect from a Raspberry Pi-inspired board with a real Intel processor.
The feature set for the UP board is impressive for a credit card sized board; it’s powered by a quad-core Intel Atom x5-Z8300 CPU running at 1.84 GHz. The board comes equipped with 1GB of RAM, 16GB of eMMC Flash, Gigabit Ethernet, five USB 2.0 ports (one on a pin header) and one USB 3.0 port. Up also includes a real-time clock, HDMI, the same 40-pin GPIO pin connector found in the Raspberry Pi Model B Plus, and DSI and CSI connectors for the Raspberry Pi camera and touch screen.
To be fair to all the previous attempts at making a board built around an x86 chip that borrows heavily from the Raspberry Pi, there haven’t been many chips out there that have been suitable for credit card-sized applications. Only in the last year or so has Intel released chips suitable for an x86 single board computer, and the growing market of Windows 10 tablets bears this out. While it remains to be seen if the UP board will be a success, more than a few people will pick one of these up for a miniature Skype box.
It might just be a case mod, but we love [Eduard]’s take on a modern Macintosh LC (translation). The donor motherboard came from a disused home server, and the LC came from [Eduard]’s childhood memories of playing Glider and The Incredible Machine.
The case was donated from a venerable Macintosh LC, manufactured circa 1990. The original LC had a Motorola 68020 CPU, which [Eduard] upgraded to an Intel Atom board. It was a somewhat tricky build – he adapted a 90 Watt power supply from a piece of old office equipment to power the new Intel board. With a great deal of very careful Dremel work, the old-school Apple logo was modified into a power button for the new computer.
For frequent readers of Hack a Day, it’s no surprise that we’ll grab up any old Apple or Mac build. [Kevin] built a weather station and analog joypad for his Apple IIc, We’ve seen custom Mac ROM SIMMS, and of course [Sprite_tm]’s amazing SE/30 emulation. If you’ve got something that will send our 68k senses tingling, send it on into the tip line.
In a bold move, Silicon Graphics has decided to see how much crap many cores they can shove in one box. The Molecule is 10,000 core rackmount machine designed to leverage low cost consumer CPUs like the Intel Atom. It emphasizes high memory bandwidth and throughput between CPUs. While this sort of space efficiency is interesting it’s certainly going to take some serious cooling to get designs like this off the ground.
[via Hacked Gadgets]