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Freya Holmér 13. sij
me: okay, looks like my ram is broken. I guess I need to buy new ones *opens website* ram: HYPERX FURY me: ram: VENGEANCE me: okay I just- ram: BALLISTIX SPORT me: what does that even- ram: PREDATOR. DOMINATOR. SNIPER X me: me: what is wrong with gamer- ram [screaming]: RIPJAWS
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whitequark 14. sij
Odgovor korisniku/ci @FreyaHolmer @atomicthumbs
this disease runs deep and not just in consumer hardware. broadcom has carrier-grade switches called Trident, Tomahawk and Maverick, and, ugh
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Andrew Zonenberg 14. sij
Branding is ridiculous. The best part is that all of these RAM brands are nearly-identical reference PCB designs built around ICs from one of about three companies. About the only difference is whether there's a heatsink, and what color they anodized it if so.
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Rich Felker 14. sij
Odgovor korisniku/ci @azonenberg @whitequark i 2 ostali
WTF, RAM has heatsinks now??
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whitequark 14. sij
Odgovor korisniku/ci @RichFelker @azonenberg i 2 ostali
yeah. not only it heats up a lot, but DDR4 also has to be retrained each time the temperature changes by more than 20°C or so, which causes a large amount of issues, especially on embedded systems
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patrick thomson is an anagram of 14. sij
Odgovor korisniku/ci @whitequark @RichFelker i 3 ostali
wait WHAT
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whitequark
what's worse is that DDR4 training code is so much of a secret that even Intel could only get it into coreboot as a blob, even when every other part of the firmware is OSS on Tegra, this blob runs on the main Linux as a normal part of the kernel, which is extra hilarious
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Don HTTPS/3 QUIChote 14. sij
Odgovor korisniku/ci @whitequark @importantshock i 4 ostali
I really wouldn't mind if they did away with all the stupid names and just told me CORSAIR (WHITE HEATSINKS) HYNIX M DIE 3000CL15 (95%+ BIN), might even pay extra
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Andrew Zonenberg 14. sij
Odgovor korisniku/ci @Sneakyness @whitequark i 4 ostali
You can buy DIMMs directly from e.g. Micron. You just pay a premium because no mass-market consumer discount. Datasheet:
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sirocyl 🔜 hacking @ PAX East! 15. sij
Odgovor korisniku/ci @whitequark @importantshock i 4 ostali
was an interesting project - switch homebrew people were dissatisfied with how Linux was necessary for working high-speed DRAM, so they just reverse-engineered the training microcode and it's now capable of DRAM pretraining in the bootloader.
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sirocyl 🔜 hacking @ PAX East! 15. sij
Odgovor korisniku/ci @whitequark @importantshock i 4 ostali
You know, looking into it, and a lot of the pretraining regs look like they could be config'd in such a way as to enable rather clean SDR (radio, not RAM) transmit with the kind of CPU power the Nintendo Switch has... Had anyone actually tried making a radio out of a DRAM iface?
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Tony “Abolish ICE” Arcieri 🦀 14. sij
Odgovor korisniku/ci @whitequark @importantshock i 4 ostali
What does oreboot do?
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