151–160 of 171 posts
So this is going into the ThinkPad P1 (Gen 7), which is too expensive and power hungry for my use cases. How long until it filters down into less expensive SKUs? Are we talking next years generation? Ifixit also links to a repair guide: https://www.ifixit.com/Device/Lenovo_ThinkPad_P1_Gen_7
Earlier quoted context omitted.
I'd wager for most consumers capacity is more important than bandwidth and the power losses are going to be small compared to the rest of the stack.
> power losses are going to be small compared to the rest of the stack While certainly not the largest losses, they do not appear insignificant. In LPDDDR4 they introduced[1] a new low-voltage signalling, which I doubt they could have gotten working with SODIMMs due to the extra parasitics. If you look at this[2] presentation you can see that at 3200MHz a DDR4 SODIMM would consume around 2 x 16 x 4 x 6.5mW x 3.2GHz =…
Earlier quoted context omitted.
I can't say I agree. Back in 2014 a laptop was purchased with a dual-core haswell CPU. 8 years later I revive the laptop by upgrading the CPU to almost the best possible CPU, which is a 4-core 8 thread CPU or 4-core 4 threads, I am unsure which of these it was, but the speed boost was massive. This is how you keep old tech alive. And the good thing about mobile CPUs is that they have almost the same TDP across the va…
How old was the new CPU though? Probably the same or similar generation to what it originally came with since the socket needs to be the same. IMO the switch to an SSD would have been the biggest boost.
Earlier quoted context omitted.
If they soldered a decent amount that gou can be sure you don't ever need to upgrade it would be fine (seriously, 64GB ram costs like 100eur, non issue in a 1000eur laptop). 8 is not enough already and 16 will soon be limiting too.
Is the goal to not have any computers that are limited to a single task? Tons of corporate IT purchases go to someone only using e.g. Word all day. Do we really care if they are provisioned with “enough” memory for you or me?
I’m glad they explained why RAM has become soldered to the board recently. It’s easy to be cynical and assume they were doing it for profit motive purposes (which might be a nice side effect), but it’s good to know that there’s also a technical reason to solder it. Even better to know that it’s been recognized and a solution is being worked on.
If they soldered a decent amount that gou can be sure you don't ever need to upgrade it would be fine (seriously, 64GB ram costs like 100eur, non issue in a 1000eur laptop). 8 is not enough already and 16 will soon be limiting too.
Earlier quoted context omitted.
Meanwhile, Apple ships machines with a 1024bit wide memory bus, while this solution offers just 128 bits per "stick".
Compared to how big the CPU package is on those machines, 4 of these sticks on each side of the motherboard should fit acceptably. And you'd be able to have a lot more than 192GB.
I can see a max of 2 fitting there.
Earlier quoted context omitted.
Framework open sources most of their schematics, if I understand correctly. So it should be possible for others to use the same standard, if they wanted to. (they don't want to)
The form factor isn't great for being a vendor-neutral thing. If we can convince the companies to actually try for compatibility, then a revival of MXM is probably a significantly better option.
In framework's case, the cooling is integrated in the gpu module, and both it's size, cooling and power deliver can be adjusted depending on the gpu power.
Would it be possible to have LPCAMM2 as external device tru thunderbolt?
Earlier quoted context omitted.
Compared to how big the CPU package is on those machines, 4 of these sticks on each side of the motherboard should fit acceptably. And you'd be able to have a lot more than 192GB.
I'm looking at the boards from M1 and M2: https://valkyrie.cdn.ifixit.com/media/2023/01/26174137/M1-vs... I can see a max of 2 fitting there.
https://cdn.wccftech.com/wp-content/uploads/2023/06/M2-Ultra...
Why can't the signaling channels use a higher voltage and control circuitry on the memory stick step up and step down the gain to access the memory module?
