[–] 2 points 2 months ago

It's a company named cmxt and they started selling their RAM to the world a few months ago.

However the Western world refuses to use it like they refuse green tech so only people outside the Anglosphere or Western Europe are going to get lower prices.

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  • [–] [S] 1 point 4 months ago

    I suspected that it might be the case. I have wanted for some time to setup a galvanostatic charge/discharge system at home for battery diagnostics, but haven't found the time yet to do so. Maybe this is the required nudge I need...

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  • [–] [S] 1 point 4 months ago

    Thanks, I'll try to do that tomorrow. Also never heard of upower, so will check that tomorrow.

    Amazon and Ebay are not great options for me due to some toll rules where I live. Final prices tend to be quite a lot higher, and shipping takes ages. But of course if I am unable to locate them locally, it might be my only option. I did eventually find one from a producer called CoreParts - need to investigate whether they are legit.

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  • [–] 2 points 4 months ago (1 child)

    all aftermarket batteries are shit. one of the manifestations of shittyness is that once they're below a certain threshold, the battery controller won't charge them no more. you're advised to never let 'em drop below 20% of capacity. or else.

    if returning the things is not an option, you can open them up, find where the cells are connected to the controller and charge them there with an external PSU of commensurate voltage; i.e. if the battery is rated at 12V, you charge em with 12V and say 0.5A whilst constantly monitoring the battery's voltage with an instrument. shouldn't take long, maybe coupla minutes. once it reaches 10-11V, disconnect, plug in to the laptop and it should start charging.

    here's me charging a "dead" macbook battery; worked just fine afterwards.

    https://defcon.social/@yuman/116680475876205754

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  • [–] 3 points 4 months ago (1 child)
    1. I would try this.
    2. I'm sure Amazon would have them. Or Ebay. Not a fan of Amazon, but they are there for about 30 bucks a pop.
    3. Check if you have upower installed and it is reporting accurately. Had a near similar issue and a upower install solved it for me.
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  • [–] [S] 1 point 4 months ago* (last edited 4 months ago)

    I wonder, where would I typically find the schematic? This piece is so small that nothing is printed on it. It has two metal contacts that look perfectly symmetrical on each side, so there are two orientations it could go in.

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  • [–] 2 points 5 months ago

    Even though RISC-V already managed to produce a few footguns ( like compressed instruction stream), I like it overall. It has became absolute smash arch for microcontrollers and it is rapidly rising elsewhere, from linux SoCs upwards.

    But above all it is becoming the default base for all these exotic and esoteric new branches that Tenstorrent and so many others are going for.

    I'd like to see someone doing smart vector/tensor unit that could do its execution autonomously, once its "shader program" gets filled. And I'd like to see that unit capable of doing its own conditional loops etc while the scalar core goes minding its own business.

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  • [–] 1 point 5 months ago

    I foolishly bought mini itx because it could fit 10 5.25" drives in toaster oven sized space.

    Five years later and I have to pay 2x for older replacement 2nd hand hardware just because of it's small size. Lol

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