DarginMahkum

OK, I couldn't hold myself and wanted to give a try. Here are the results for my undervolted Blade 18 with 4080 (4090 can do +2000 for the GPU score), in boost and silent modes, stock GPU.

CAMM is replacing SO-DIMM as an industry standard from 2024 on to overcome the limits of SO-DIMM (frequency, 32 GB per stick etc.)... "Goodbye, SO-DIMM: Memory overseer JEDEC will formally adopt the “CAMM Common Spec” as the next RAM module standard for laptops." https://www.pcworld.com/article/1473126/camm-the-future-of-laptop-memory-has-arrived.html

The level of "understanding" here is mind blowing... As if I said the physical properties of a slot is the only factor that defines a standard. You cannot verify it as there's no SO-DIMM with 64GB per module. The discussion was not about if the 64GB is supported on a laptop, it is about claiming just because the CPU can support 128GB of address space, it will be possible to populate 128GB on a two memory slot laptop. I am trying to explain just because you fill in enough chips on a memory module does not mean it will be usable as it has to be part of the DDR5 SO-DIMM specification, and there are other factors than just the number of chips that limits it, and it can only be confirmed by what the DRAM controller and SO-DIMM specification supports. I don't know why it is so difficult to grasp. I am out of this silly discussion. It is just mind blowing people can make such assumptions and stand behind it without knowing the slightest about what the specifications are, how a DRAM controller works. Unbelievable. "Dell’s CAMM DRAM avoids SODIMM bandwidth limitations by using a compression connector. The benefits are already apparent with higher capacity modules. CAMM modules scale from 16GB to 128GB; the 128GB modules can run at DDR5-4800, whereas DDR5 SODIMMs only scale to 32GB. You’d need four 32GB SODIMMs to get 128GB, and you’d be limited to DDR5-3600 in that configuration. Thus, the benefits of CAMM can already be realized at the high end, both in terms of footprint and performance." https://www.storagereview.com/review/dell-camm-dram-the-new-laptop-standard Why SO-DIMM is at the end of its life being replaced by CAMM, possibly from 2024 on... https://www.makeuseof.com/camm-vs-sodimm-ram/

Someone posted this on reddit. Looks like it is possible to undervolt via Synapse.

I prepared a list of questions I had on Razer reddit. Let's see if anyone will respond...

You simply don't get it, do you. The laptop does not support what the CPU or chipset support, it supports what the full functional unit specification "CAN" support, which is from the CPU to the SO-DIMM slot. Although the CPU can support 128 GB, if the SO-DIMM specification does not support it due to for example possible interference between very narrow pins, the laptop will not support it, that is it. 262 pins, not 268. Pin count of SO-DIMM module, not the DDR5 chips. I did not ask any questions. Read the post carefully.

What is interesting, looks like overclocking is now available through Synapse: https://mysupport.razer.com/app/answers/detail/a_id/9699 ...and a redditer reported that it is possible to undervolt the 18 (I am assuming same thing goes also for 16): I will still wait for the 7945HX laptops before buying anything.

If you instead of repeating the same thing over and over again would read my posts properly, you would see that I already mentioned that post in my second post. I don't know the specifications of the chipset, what timings are supported, how the bus lines are allocated to a slot, what the specifications of SODIMM are. And as you can see from the Razer spec, there's a limitation of the timings etc., so it is not just providing the pins, provide enough DRAM chips and it will just work. There are other limitations at play for specifying what a single slot can support. I didn't study the standards and the memory controller, so as someone developing software (and hardware) for many years, I would be careful not to use definitive statements about what is possible before making sure per standards it is possible to have 64GB on single slot properly functioning (also don't forget that larger modules used for servers have different standards like LRDIMM compared to what consumer desktops and laptops use). Anyway, back to the topic: It is just weird that Lenovo does not mention the possible memory configurations (including 64GB) properly, whereas Razer does.

I don't know why I am having this ping pong with you. "Can" support is one thing, that the system "supports" (e.g. 2 slots 8nstead of four) it is another thing. Last generation is one thing, this generation is another thing. I earn a living doing DSP and embedded systems programming, and have been programming for many years. So it is not that I don't know what CPU support means but I am just referring to the Lenovo specification. That is it. True, I am missing the part about how the recent DRAM controller address bus etc. are and can be configured, but it is still weird that they specify a max 32 GBs in their specs. And yes, there is only one 32GB stick @ 5600 MHz I could find but it is not that it is impossible to buy or super expensive. Anyway, my last post on this topic especially as I am not considering buying this laptop.

Again, it has nothing to do with what the processor can support. It is what is given in technical specification from Lenovo. I am also not sure if it is per slot thing, as I have never seen a per slot specification without giving the number of slots before. Maybe there are no 32GB 5600 SODIMM modules? Maybe even if there's, there's a problem with this in 2x32 configuration? I am not sure, but the post from IamTechknow kind if confirms this.

It is not about upgrading yourself, the spec says max 32GB - meaning 64GB is not supported. Maybe something to do with the overclocked configuration, I am not sure.

This is just silly! The new Legion 7i 16 can be configured only up to 32GB.

It is "still" on the cheaper side. 😛

The price is ridiculous considering it does not have the 4 SSD and 4 RAM slots the workstations (HP, Dell, Lenovo) or the MSIs have. They did a lot of things right this time, though: 16:10 2560x1600 screen (I don't have to use scaling on Linux), is half a cm thicker so better cooling, and as I understand can sustain 120W on the CPU. The thing I really hated on RB17, though, was the horribly limited BIOS. Then comes the not lit secondary key functionality on German keyboard. I also didn't like the Razer control center on Windows but I was anyway mostly using Linux and was able to solve the thermal profile switching (which I could not on HP ZBook Fury). Let's see the reviews. After my last experience, if I would buy it (most probably I will not) I would definitely buy from Amazon with my business account, so that I am on the safe side. I don't trust the Razer support.