today at 7:46 AM
The race to make laptops thinner is pointless. I wish I could buy a thicker laptop that is more robust, repairable, expandable, and has better cooling, with the extra space filled with batteries.
today at 8:04 AM
> The race to make laptops thinner is pointless.
Perhaps for you, but I very much care about my laptop's size and especially it's weight, as I carry it around on a daily basis.
Repairing or upgrading it aren't really of interest to me, as I wouldn't be able to aquire the parts where I typically live anyway. And performance and cooling have already been more than good enough for me in most laptops for the last decade.
today at 8:17 AM
Until very recently, the low power version of RAM had to be soldered to the motherboard.
If you want the battery life improvements, bear in mind that there is a hard limit on how large a battery you are allowed to fly with, so low power components are important.
today at 8:11 AM
I wish that my MBP14 was as thin as my partner’s MBA13.
Not to mention how often I long for my MBA11 with the tapered body which almost made it feel like it was floating in my lap when working from the couch.
today at 8:06 AM
I genuinely don't think people care that much about thin laptops.
Could it be that thin laptops are largely an excuse to provide a need to solder RAM; which in turn encourages consumption through obsolescence?
today at 8:06 AM
My lenovo work laptop is crippled by poor cooling and can only sustain ~1GHz clocks on extended tasks. An old personal laptop 10 years older outperforms it.
today at 7:59 AM
Framework?
today at 8:07 AM
Framework does exactly what the GP claims to want.
Unfortunately, not many people making those claims _actually_ want them by revealed preferences. They overwhelmingly want the lower price laptops with similar performance specs.
today at 7:08 AM
I'm stunned that "mapping out" blocks of bad RAM is a thing you can do. It reminds me of the old days when hard disks had to be "low-level formatted" first (ask your parents, kids) and it would ask you for a list of bad sectors to map out. Sometimes hard disks would even come with a list of known bad ones printed on the top.
today at 7:01 AM
We used to buy Dells with minimum RAM and add quality third party RAM for way less than Dell wanted for it. They also use ram quantity to leverage other specs we're not bothered about. Of course they are moving to soldered.
today at 7:51 AM
Prebuilt branded PCs have always had inferior quality, compatibility, and expandability problems, all with overpricing.
today at 8:10 AM
> But in the search for even thinner laptops
The LP in LPDDRx isn't about creating thinner devices.
The LP stands for Low Power and is aimed at making devices that draw less power resulting in a longer battery life.
today at 8:11 AM
The RAM situation is beyond helpless. I was meaning to buy another 32GB stick for my Framework, but they're out of stock and so are any validated alternatives.
I've found just one store that carries them, but seeing as they reported "50+ units in stock" I called the store and learned that "the item is available through a third party vendor within four business days", but looking at that the ratings it would be more like three weeks.
last Saturday at 4:12 PM
LPCAMM2 sockets were supposed to provide all the benefits of soldering while still being a socket. Anyone know the state of adoption?
yesterday at 5:42 PM
The new Framework 13 Pro laptop ships with LPCAMM2.
https://frame.work/blog/framework-laptop-13-pro-deep-dive-lp...
today at 7:48 AM
But no ECC support.
today at 6:37 AM
yeah but there is very little interest in that model compared to ai max line
today at 7:55 AM
You can't buy a single LPCAMM2 RAM module on Amazon. eBay has some.
today at 7:27 AM
Lenovo uses it on their latest thinkpad t14.
last Saturday at 5:58 PM
the fact no component supplier, not even alibaba sells LPCAMM2 sockets tells you everything you need to know. The only prices I can find are in $30 range per socket
today at 7:40 AM
Connectors are expensive, high-speed ones particularly. $30 is fine, though it makes a giant difference at what quantity that is. Did you look at a single one or 1k?
today at 7:28 AM
Honestly, reasonable.
I've been eyeing LPCAMM2 interposers for non-RAM uses - as an off the shelf connector for stacked PCB designs. The conclusion was that it wasn't produced or used at sufficient scale for it to work.
today at 7:44 AM
All of the new NVIDIA data center GPUs use SOCAMM2, quite similar to LPCAMM2.
https://www.koreatimes.co.kr/business/tech-science/20260420/...
today at 8:24 AM
If I were to create a RAM price-fixing cartel I'd first push manufacturers towards RAM soldering so the old ram cannot be used anymore
today at 8:30 AM
To counterweight all the cynical takes about soldering RAM being a conspiracy to force device obsolescence, I can think of at least one other dynamic that could have resulted in today's scenario: smartphones.
Smartphones also need RAM and are especially subject to requirements of always being thinner, lighter, and have a durable battery, yet have spacious amounts of RAM.
Growing demand for smartphone RAM pushed for its optimization and production scaling and since all its requirements also match laptops, this convergence was inevitable.
Hopefully the growing demand for datacenter RAM density will make modular interface standards like LPCAMM2 more available (soldered has no place in datacenter).
last Saturday at 9:16 PM
> I then had to manually transcribe this, which [w]as “fun”.
Can't you select and copy the text in the photo (on most smartphones and PCs at least)?
today at 7:45 AM
Like the exact case with phone batteries that are not easily changable by the owner, soldered rams are evil...
last Saturday at 8:29 PM
Bash me all you want, but after CPU, GPU, memory controller & a host of other things integrated in modern System-on-Chips (SoC), I've long held the belief that next logical step would be to integrate RAM.
Optimal: piecemeal. As in: X sockets on a board, each socket takes a chip that adds CPU core(s), GPU cores, and some amount of main RAM. More chips, more powerful computer.
Keyword: socket. Read: replaceable. Bad chip out, good chip in. Slow chip out, faster chip in. Soldered onto board = reliable, but a defect could junk the whole machine.
today at 8:33 AM
Considering the current trend is for SoCs to deintegrate: don't count on it.
Putting RAM inside the logic die is crazy expensive - just look at how much footprint L3 cache takes up on a modern chip. It'll always make more sense to put it in a separate die, made using RAM-specific processes. With Zen the memory controller and GPU has (once again) moved to a separate die, and with X3D we're now even seeing separate cache dies.
There's of course HBM if you want to consider that "integrated", but the large cost bump, additional manufacturing risks, and loss of flexibility don't make that an attractive proposition unless you really need the extra speed. Regular DDR dies? You gain basically nothing by co-packaging those.
today at 7:41 AM
Manufacturing processes for RAM and processor cores are not one and the same and use different tradeoffs. It's the main problem in-memory processing is running into, which is akin to what you're describing here. The die space required for the same level of performance makes the idea of on-die RAM intractible. The best they're able to do with RAM optimised manufacturing processes are tiny RISC-V cores that lack most of the feature sets. What apple does with moving the RAM chips on to the package really is the only viable option.
last Saturday at 9:02 PM
> Bash me all you want, but after CPU, GPU, memory controller & a host of other things integrated in modern System-on-Chips (SoC), I've long held the belief that next logical step would be to integrate RAM
Haven't Apple (A-series, M-series) and others been copackaging memory for a while? (SiP or MCM?)
today at 6:53 AM
Those aren't socketed though, are they?
today at 7:51 AM
RAM uses a different process than the logic nodes you describe. RAM uses tons of capacitors, along with the the transistors.
Then there is the HBM which is an expensive process to mount on the chip.
today at 7:44 AM
I'm using laptop with Ultra 7 268V. It already has RAM on chip. I think they call it "processor package". I don't think it's socketed, though.
today at 8:09 AM
RAM on package or on die is common for laptops now.
today at 7:22 AM
It it possible to desolder and replace the offending RAM if one were sufficiently motivated? I've seen folks doing that to soldered SSDs in MacBooks
today at 7:33 AM
It is - anything short of HBM can be replaced that way.
The issue, of course, is just how much time, effort and skill is required to do it.
It might become a viable commercial process outside third world countries if RAM prices spike even more - or if someone finds a way to teach an off the shelf $1000 robot arm advanced autonomous microsoldering.
Then there's the problem of forcing the device itself to recognize the new RAM. It's a device-specific trick. RAM sticks have a little tag chip that tells a PC "how much RAM this stick has", but RAM chips themselves don't - so the device has to infer its RAM capacity from elsewhere. Like strap resistors on the board. Which you have to find and adjust for the new RAM capacity. That, or fix the RAM values in firmware, which is also device-specific.
today at 7:44 AM
> RAM sticks have a little tag chip that tells a PC "how much RAM this stick has", but RAM chips themselves don't - so the device has to infer its RAM capacity from elsewhere
I'm surprised that in 2026 this is still true.
You could easily fit a little microcontroller on the die of each RAM chip which reports its make/model/manufacturing date, capacity and capabilities, can be triggered to run self-tests, etc. If they aren't doing that yet, I'm surprised that they aren't.
today at 8:35 AM
Upgrading my RAM firmware when
today at 7:55 AM
Why bother with the expense if you are permanently soldering it in anyway?
today at 8:05 AM
Well, it turns out they actually are bothering – while in DDR thru DDR4, the mode registers are write-only, LPDDR2 onwards have an MRR (Mode Register Read) command, which the CPU/chipset can use to inspect the manufacturer and capacity; and DDR5 has copied the same facility from LPDDR.
today at 7:46 AM
Yes, of course. It says - ball grid (array) in the article. Doing it by hand, e.g. with just hot air is proper hard. It's not hard with specialized equipment (that cost way more than the laptop, itself). Sourcing the chips is not easy either.
As for the videos and the Macs, you can see the same people (likely) soldering RAM as well.
today at 7:37 AM
If you live in Shenzhen, it's a subway trip away. Good repair services elsewhere can do it too. Either way any warranty you have is probably getting called into question after that, even if that's supposed to be illegal in some places (e.g. the US - they're supposed to prove that your modification/repair is what caused the warranty fault, but in practice…).
today at 8:14 AM
> Either way any warranty you have is probably getting called into question after that
I'm assuming if it were still under warranty, dead RAM chip would be enough to get a free repair/replacement from the manufacturer
today at 7:41 AM
Of course it is possible. Unless you're dealing with manufacturer who actively works against that, like Raspberry Pi.
today at 7:46 AM
On YT there’s dosdude soldering ram on M series SoCs
Good BGA experience and a steady hand seems required
yesterday at 2:27 AM
Since the OP mentions Lenovo, look at their other product lines for ones that still have socketed RAM. I'm currently running an E16 with 40GB RAM, 8GB soldered, 32GB socketed. And aside from that it leaves my previous X1 for dead in terms of performance. Lenovo's replacing the carbon fiber case, the whole reason the X1 line is called "Carbon", with crappy black plastic was the last straw.
today at 7:05 AM
Am I the only one who wonders if there is a way to get the kind of performance we want out of non-soldered components/SOC designs? Like from what I've heard, it's a "physics says no" problem, but I'm not sure if that's actually true (not being an expert in this technology) or if it's just the excuse many companies use to justify soldering everything to make serviceability impossible. And it would be really neat if this is actually being looked into by labs right now (possibly with AI's help), since areas like that are where I think (non) LLM AIs might be very useful. Same thing for medicine, materials, etc.
today at 7:30 AM
If the CPU can be socketed, there is no reason RAM can't be.
today at 8:02 AM
The boards using LPDDR don't have socketed CPUs. Also, every connector is a huge hit to your signal integrity, so one versus two might indeed be a big deal.
And yeah, it can be, but that's how you end up with the far slower regular DDR. Fast, repairable, cheap: pick (at most) two.
today at 8:28 AM
No, even in multiple RAM channel Server, the CPU is still socketed. That means all the data is going through a socket before reaching the CPU.
I agree there is draw back when using socket(mostly size), but performance is not the big issue.
MRDIMM RAM can reach even higher Transfer rate than LPDDR5, yet still socktable.
today at 7:54 AM
Effectively there are no socketed CPUs for laptops, though, for way more than a decade already. Saying that as I'd fully support modular components, as in desktops.
today at 8:06 AM
Tsinghua Tongfang (and I think Clevo) offers customizable laptops. Resellers might use own branding.
CPU and RAM are socketed. Clevo had socketed graphics cards too
today at 7:29 AM
While it's true that you can get better performance out of soldered memory than a socket, that's also not why vendors use it. Desktop computers, with their very much not soldered memory, get great performance after all. The laptop vendors solder the memory because it lets them make more money off selling units with more memory soldered in. That's all.
today at 7:47 AM
It's partly a thickness problem. Sockets add height to boards.
Besides, since RAM isn't getting cheaper for a while, this isn't a big issue now.
today at 8:20 AM
> Besides, since RAM isn't getting cheaper for a while, this isn't a big issue now.
I would argue the exact opposite, actually! My home machine has 32GB of RAM and is already over 7 years old. If it were to die right now I'd ideally go for an upgrade with 64GB so it would be good for another 7 or so. But that's completely unaffordable, and I could survive with 16GB for a year or two, so going for the bare minimum now and upgrading it later is looking very attractive...
today at 7:52 AM
Are any customers asking for a laptop that is 1 or 2mm thinner?
today at 8:14 AM
I don't know if they're asking for them, but they sure seem to appreciate them and see them as "better".
At work, the standard issue laptop is some form of HP Elitebook. These have been getting thinner, and people seem to like that. We're not a tech shop, and even the IT dept. is mainly barely-technical project-managers. An 8th gen i5 would be plenty powerful for what they do, but fortunately for them we have to replace the laptops regularly because for some reason we buy them with the least amount of RAM possible (even before the prices exploded).
Anyway, at the start of the year I was fed up with the ridiculous screen quality of the HPs and other annoyances, so I got myself an Lenvo p14 something-or-other. It's almost twice as thick and much heavier than the HPs, and everyone who sees it makes fun of it.
today at 7:51 AM
That's not all.
"Smartphone makers glue them because it's cheaper and they can make more money ..." No. It's what the consumers want. Thinner phones, water resistant phones, and thinner laptops.
today at 8:13 AM
I can't recall the last time someone mentioned a phone or laptop being too thick as a downside in a review. Thin and light devices have been widely available for well over a decade, even to the point of caricature like the iPhone Air. It just isn't a feature worth caring about anymore.
Water resistant? Those ratings are lies anyways, and nobody is going to bring their expensive smartphone on a diving trip to take pictures - or even take it surfing without a waterproof case. In practice "water resistant" means "won't die from an occasional splash", and that can be achieved perfectly fine by repairable phones.
today at 8:19 AM
People seem to care about "thin and light" laptops, at least my colleagues do. But since they don't pay for these out of pocket, I can't tell how important it is to them, measured in currency.
Now, I don't know about surfing, but I regularly strap my iphone to my motorbike's handlebars to use as a GPS. No case. I don't particularly enjoy doing this under pouring rain, but it does happen, and the phone gets drenched. However, to the point about people wanting this, yes, I do. I would also love a replaceable battery. My old Galaxy S5 had both features, so saying that waterproofing means non-user-replaceable battery is a lie.
today at 6:36 AM
i had to move a very very small resistor in the correct place to make a laptop disregard the soldered ram and only use the sodimm
today at 7:14 AM
Well that was good to learn!
today at 7:02 AM
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