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Grabhanem

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  1. People do occasionally do this, but it requires specialized coolers since the height will be different. Typically, GPUs have the die exposed already, so there's no need to for those.
  2. If you click on the word three-phase, they explain exactly what they mean by three-phase: it's the motor type, not the power input. The fan takes 24VDC in and produces three-phase power internally to drive a brushless motor. If you've ever worked with drone motors, it's the exact same layout.
  3. What kind of games do you play, and do you do anything else performance-intensive with your PC? If you play a lot of high-FPS competitive shooters or do a lot of video editing/3D modeling/code compiling/other productivity tasks, the CPU upgrade probably will be better. (Although I'd avoid the Q300L for its poor airflow performance, and choose a lower-wattage PSU with better internals instead of a 750W white.) If you play a lot of sightseeing games at high resolutions/settings, the GPU upgrade will help you more, although I don't know how well your current PSU would handle it.
  4. The 150W spec for 8-pin connectors is a PCI-SIG standard, and is playing it *very* safe on the actual power rating of the connectors. An 8-pin PCIe connector has 3 12V pin pairs, and each pair is rated to around 100W by Molex; additionally, I believe Corsair uses all 4 pin pairs for 12V power on the PSU end for that unit, giving you around 400W of power headroom for all connectors on the chain. Definitely do not use the 6-pin connectors meant for SATA. As far as I can tell those only use one pin-pair at 12V, and are a different layout from both the PCIe 6-pin and other manufacturers' 6-pins, so adapting them would be very sketchy.
  5. The local Corsair PSU Division has spoken
  6. Mainly demand. Very few people are using SAS drives on USB-only systems, whereas many people would want to connect an old hard drive to a laptop. There's no incentive for anyone to produce a mass-market SAS to USB adapter, so the only ones that exist are small-run and expensive.
  7. If you don't mind having a second PSU, you can get the second board out of the equation by either using a PSU jumper tool (available pretty cheaply) or jamming a paper clip between the green and black wires on your PSU. The real problem is that server boards like this are designed to be used in proprietary chassis where fan mounts, drive bays, etc are all built into the case/backplanes, so they often are missing those features in the way you'd see them on a consumer board.
  8. I'm confused as to what you're saying here. If you're saying that the GPU core would only be as expensive as a midrange CPU, that doesn't add up. CPUs are very small dies, comparatively - they only have a few cores, and clock those cores very high. A 10900K costs $500 and has a die area of only 206 mm^2. Meanwhile, a 3090, the closest consumer GPU to your $2000 number, has a whopping 628 mm^2 of die area. Die area costs tend to increase exponentially, as you have to essentially bet on a larger area of the wafer being perfect - you can reduce the cost with GPUs by oversizing and binning down, but the die is definitely a major portion of the cost. There's also the problem of memory bandwidth. CPU and GPU memory aren't exactly equivalent, but a channel of DDR4 has about 25.6 GB/s bandwidth. Compare that to the 3090's 936.2 GB/s bandwidth and you might see the issue: memory traces are hard to design on the best of days, and every socketed connection adds a significant amount of interference to the data. When you're trying to cram 2 top-of-the-line 8-channel server CPUs' worth of bandwidth into a single card, you need every advantage you can get.
  9. I don't have a ton of experience with mining pools, but as far as I know your description is kinda backwards. You don't have a share of a fixed pool; rather, the pool is the sum of all of its users' individual hashrates. Your individual hashrate doesn't change much, but as users join and leave the pool, its total hashrate changes.
  10. Those voltages are generally generated as needed at whatever point they're needed, rather than using a dedicated power supply, for space reasons.
  11. Laptops don't use any particular form factor; instead, each motherboard is custom-designed for each laptop model.
  12. If an RTX 3070 is only using 90W, your benchmark is definitely not using it to its full potential.
  13. The entire question depends on the exact memory you're looking at. This is not necessarily true. Performance of memory is entirely based on the timings & speed, and both Corsair and other manufacturers offer a wide range from very low-performing to very high-performing kits.
  14. It depends on the laptop. DDR3 and DDR3L are in theory intercompatible, but some laptops either only support one or the other, or will give you a warning if you install the wrong type.
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