wtallis

19 ms·

451.
by wtallis 10mo ago
> I prefer SSDs because the connector is so much more accessible. Ripping out the video card and futzing with the pain of that tiny NVME screw is no fun. This doesn't make sense as written. I suspect you meant to say "SATA SSDs
452.
by wtallis 10mo ago
We used to want to connect SSDs, hard drives and optical drives, all to SATA ports. Now, mainstream PCs only need one type of internal drive. Hard drives and optical drives are solidly out of the mainstream and have been for quite a while,
453.
by wtallis 10mo ago
At least the Samsung and SanDisk PCIe AHCI M.2 drives were only for PC OEMs and were not officially sold as retail products. There were gray-market resellers, but overall it was a niche and short-lived format. Especially because any system
454.
by wtallis 10mo ago
Lots of consumer SATA SSDs don't have any thermal pads between the PCB and the case, and plastic cases are common. Heat just isn't a problem for a drive that's only drawing 2-3W under load. And most consumer NVMe SSDs don&#
455.
by wtallis 10mo ago
Three is not pitiful. Three is plenty for mainstream use cases, which is what mainstream motherboards are designed for.
456.
by wtallis 10mo ago
Are you sure? I've seen plenty of motherboards bundle a PCIe riser to passively bifurcate the PCIe slot to support four M.2 drives in an x16 slot or two in an x8 slot, but doing eight M.2 drives in one PCIe slot would either require a
457.
by wtallis 10mo ago
For a drive , yes, SATA and NVMe are mutually exclusive. The M.2 slot can provide both options. But if you have a machine with a M.2 slot that's only wired for SATA but not PCIe, your choices for drives to put in that slot have been q
458.
by wtallis 10mo ago
Consumer chipsets have long supported USB, SATA, and PCIe using shared PHYs giving motherboard vendors some flexibility to decide which IO lanes they would like to wire up to SATA connectors vs USB connectors vs PCIe/M.2 connectors. (T
459.
by wtallis 10mo ago
I don't think anyone is using EUV for NAND flash. Cutting SATA SSD production is really just a reflection of the fact that NVMe has been mainstream for a decade, and both servers and consumer PCs have been using NVMe as the default SSD
460.
by wtallis 10mo ago
The cheapest motherboard + CPU bundles at Microcenter all include motherboards with three M.2 slots. There definitely are full-size ATX boards that only have two M.2 slots, but these days that's usually only because one of the PCIe s
461.
by wtallis 10mo ago
Can you point to a specific motherboard? 16 separate PCIe links of any width sounds rather high for a consumer platform.
462.
by wtallis 11mo ago
Sure, but 72x Neoverse V3 (approximately Cortex X3) is a choice that seems more driven by convenience than by any real need for an AI server to have tons of somewhat slow CPU cores.
463.
by wtallis 11mo ago
I don't know why that NVIDIA document is wrong, but the established term for doing DMA from eg. an NVMe SSD to a GPU within a single system without the CPU initiating the transfer is peer to peer DMA . RDMA is when your data leaves th
464.
by wtallis 11mo ago
Note that the locking connector OWC uses is a standard, not the standard. This is USB we're dealing with, so they made it messy: the spec defines two different mutually-incompatible locking mechanisms.
465.
by wtallis 11mo ago
Essentially, the Grace CPU is a memory and IO expander that happens to have a bunch of ARM CPU cores filling in the interior of the die, while the perimeter is all PHYs for LPDDR5 and NVLink and PCIe.
466.
by wtallis 11mo ago
That doesn't answer the question, which was how to get a high-speed interconnect between a Mac and a DGX Spark. The most likely solution would be a Thunderbolt PCIe enclosure and a 100Gb+ NIC, and passive DAC cables. The tricky part wo
467.
by wtallis 11mo ago
By far the most important thing about the PS5 SSD was the fact that it wasn't optional, and developers would no longer have to care about being able to run off mechanical drives. That has repercussions throughout the broader gaming ind
468.
by wtallis 11mo ago
Repeating this weird claim won't make it true. DDR4 isn't going to come back into fashion, even during a DRAM shortage. Demand for DDR4 can't increase meaningfully when no current-generation processors can use it, and older-g
469.
by wtallis 11mo ago
What Sony said about their SSD was that it enabled game developers to not duplicate assets like they did for rotating storage. One specific example I recall in Sony's presentation was the assets for a mailbox used in a Spider Man game,
470.
by wtallis 11mo ago
It's really common for laptops to only support charging, display output and Thunderbolt on the USB-C ports on one side of the laptop while the other side gets just a 5 or 10Gbps USB port (and probably the headphone jack). This asymmetr
471.
by wtallis 11mo ago
> On the other hand, at 7200 RPM, it takes up to 138 microseconds to wait for the platter to spin around and reach a random block on the same track. You did the math for 7200 rotations per second, not 7200 rotations per minute = 120 rota
472.
by wtallis 11mo ago
> the Switch cartridges use NAND memory which means if you aren't popping them into a system to refresh the charge every once in a while, your physical cartridge might not last as long You've been paying attention to the wrong
473.
by wtallis 11mo ago
There also weren't H100s available to scavenge. GH200 puts the Grace CPU and H100 GPU on a big module with a custom form factor and connectors, so the only viable route for using those GPUs was to keep all the electronics together an
474.
by wtallis 11mo ago
NAND is built with dozens of layers on one die. HBM DRAM is a dozen-ish dies stacked and interconnected with TSVs, but only one layer of memory cells per die. AMD's X3D CPUs have a single SRAM die stacked on top of the regular CPU+SRAM
475.
by wtallis 11mo ago
Well, there are pitfalls, and it's easy for an "anonymization" scheme to leak more detail than it would seem at first glance. But I agree that motive plays a big role. If your purpose in sharing data is to make money off i
476.
by wtallis 11mo ago
That example only demonstrates leaked information of the drivers , not the passengers/customers. And the "anonymized" driver and license data wouldn't need to be released in any form at all to produce a dataset useful f
477.
by wtallis 11mo ago
You're not paying enough attention to the performance and cost impact of connectors and sockets. CAMM2/LPCAMM and CUDIMM have yet to be demonstrated operating at speeds that speeds that match the fastest soldered LPDDR, let alone
478.
by wtallis 11mo ago
Between inflation generally, and DDR4 being obsolete and unsupported by current desktop or server CPUs, it would be unsurprising for DDR4-3200 DIMMs to be at an all-time high even without the current DRAM price shock. You can never count on
479.
by wtallis 11mo ago
The 16e was launched out of the usual release cycle, five months after the rest of the 16 family.
480.
by wtallis 11mo ago
Since the initial response contains the (correct) current year, it must have entered the context at some point, most likely before the first (wrong) output token was generated.

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