Search:

Type: Posts; User: CM Phaedrus

Page 1 of 12 1 2 3 4

Search: Search took 0.00 seconds.

  1. Replies
    19
    Views
    7,041

    I've only seen one other PSU with a broken PCB,...

    I've only seen one other PSU with a broken PCB, that one on the secondary. That was a bit more serious since it broke the feedback line, so the +12V was putting out 19V.
  2. Actually there can be significant differences in...

    Actually there can be significant differences in amplifier quality, especially at high gain. A properly design amplifier can have significantly lower distortion and better linearity.

    The issue is...
  3. Replies
    9
    Views
    2,869

    I believe Delta gives greater margin in terms of...

    I believe Delta gives greater margin in terms of ripple current, and perhaps does better thermal management than most other brands. I also suspect they put more effort into their pi filter designs,...
  4. Most audio reviews are worthless anyway. Either...

    Most audio reviews are worthless anyway. Either the reviewer doesn't know what they're talking about, or you get an audiophile whose critique comes down to how "sparkly" the gear sounds to him.
    ...
  5. I'm not an expert on line conditioners, so I...

    I'm not an expert on line conditioners, so I can't comment on that one's quality.

    One suggestion, however, would be to place the line conditioner at the inverter, instead of the PC. Filter the...
  6. It's not uncommon for an extremely noisy input to...

    It's not uncommon for an extremely noisy input to cause vibration and noise, even if the inductor and transformer are totally fine. It's the same mechanism, basically, as coil whine. Depending on the...
  7. Using a line conditioner may be your best bet:...

    Using a line conditioner may be your best bet:
    http://www.amazon.com/b?node=10967061

    Calculate the total power draw of your system, including any monitors or other peripherals that may be plugged...
  8. Replies
    15
    Views
    5,016

    ATX 1.31 is obsolete. The standards you want are...

    ATX 1.31 is obsolete. The standards you want are ATX12V 2.3 and EPS12V 2.92. I don't believe either of them currently require +12V OCP.
  9. Replies
    15
    Views
    5,016

    Some single rail PSUs implement +12V OCP in the...

    Some single rail PSUs implement +12V OCP in the same fashion as multi-rail, just using a single shunt resistor (or several ganged in parallel) instead of having multiple separate ones. The V series,...
  10. He's too caught up in wanting to prove he's not...

    He's too caught up in wanting to prove he's not wrong, to sit back and realize that what he's arguing about doesn't actually pertain to the conversation. I've been there before too. We mainly just...
  11. I know that the OCP is done in the digital...

    I know that the OCP is done in the digital domain, though I'm unsure of the exact implementation as I haven't had a chance to poke around in an AX1500i myself. Unless someone would be kind enough to...
  12. The CWT PUC, and I believe one other >1kW design...

    The CWT PUC, and I believe one other >1kW design (Enermax maybe?), had two separate transformers with +12V outputs. I also recall a single unit from Seventeam with two transformer taps for the +12V...
  13. The rest of your post aside, where in the world...

    The rest of your post aside, where in the world did I imply that?

    I think the issue here is your reading comprehension and communication, rather than what I or Quest have actually said.
  14. "Watts held in reserve" doesn't make sense even...

    "Watts held in reserve" doesn't make sense even in a true multi-rail design such as CWT PUC. That's simply not how power supplies work.

    The multi-rail standard in EPS12V 2.x was also not...
  15. The goop is just glue, used to hold things down...

    The goop is just glue, used to hold things down and keep them from moving around. It can also keep coils and such from whining. I've heard some engineers affectionately call it "hot snot"

    I don't...
  16. Replies
    14
    Views
    4,117

    Since they claim 50lb weight and diss on switch...

    Since they claim 50lb weight and diss on switch mode PSUs, I'm guessing these are linear regulators? In which case the pricing actually isn't terrible for what you get, assuming that what you get is...
  17. Replies
    45
    Views
    10,732

    The fan is always run based on thermal sensing,...

    The fan is always run based on thermal sensing, and in 99% of units it is based on temperature alone. That temperature should be a thermistor(s) on your most thermally stressed component(s). The "on...
  18. Replies
    17
    Views
    4,701

    The Rigol DS1054Z can be had for $375 with the...

    The Rigol DS1054Z can be had for $375 with the EEVBlog discount from TEquipment, and can be hacked from 50MHz to 100MHz relatively easily. Nice little scope.

    But, measuring ripple isn't something...
  19. Replies
    17
    Views
    4,701

    We had one guy running a bunch of ASIC miners off...

    We had one guy running a bunch of ASIC miners off of a V series PSU, multiple units off each PCIe cable (via crappy adapters), etc. The listed TDP added up to like 120W, but the boards were...
  20. Replies
    17
    Views
    4,701

    Yes, which is why we deny the RMA claims of...

    Yes, which is why we deny the RMA claims of people who burn their 6-pin PCIe connectors powering some Wun Hung Lo ASIC miner with 140W TDP.

    The point is that the specification exists for a reason,...
  21. Replies
    17
    Views
    4,701

    Some 6-pins can handle 150W. Many cannot. I...

    Some 6-pins can handle 150W. Many cannot. I consider 100-125W to be a safe "max" limit, while 8-pins can usually handle up to 200W. The extra ground pins really do help a great deal.
  22. Replies
    19
    Views
    6,628

    Just a note, your secondary filter doesn't...

    Just a note, your secondary filter doesn't necessarily *have* to be a pi filter. The regulation coil and filter caps work as a low pass filter all on their own. Adding additional LC (inductor and...
  23. Replies
    4
    Views
    7,358

    I doubt this system breaks 100W power consumption...

    I doubt this system breaks 100W power consumption running full tilt. Most of the time you're going to be <50W. You could run this on a PicoPSU.
  24. Replies
    60
    Views
    13,052

    Not officially. But I've actually run into people...

    Not officially. But I've actually run into people who've used their 240V dryer outlet to power their mining rig, or who paid an electrician to run a 240V line. I could see someone like that importing...
  25. Replies
    43
    Views
    12,711

    Not everyone lives in an air conditioned house in...

    Not everyone lives in an air conditioned house in a mild climate. Latin America in particular has a large number of PC enthusiasts living in hot climates with spotty access to air con. When...
Results 1 to 25 of 283
Page 1 of 12 1 2 3 4