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Help me diagnose this shit

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Ivon:

--- Quote from: kitamesume on December 15, 2012, 04:54:45 AM ---
--- Quote from: Ivon on December 14, 2012, 07:19:31 PM ---
--- Quote from: kitamesume on December 14, 2012, 05:04:01 AM ---^no because most, if not all, of the PSU has a peak non-continuous rating of 1.5-2.0 times their continuous capacity, thats how the generic PSU gets their 500watts max rating.

--- End quote ---

So you're saying you shouldn't have a buffer above what is recommended by the video card?
-Do believe that recommendation factors in a 'typical system' (CPU, RAM, HDD, etc) in addition to what the card will need.

Probably not understanding what you mean. For some reason when I red "how the generic PSU gets their 500watts max rating" I think of the Wattage listed on the side in large print....which would mean the continuous rating is something like 250watts.

--- End quote ---
did i ever say that you shouldn't add a buffer? where did i say it?
now a day's PSU are true rated at it's continuous output, GPU manufacturer's suggested PSU capacity factors in generic PSU's retarded labeling, if you've noticed why they even recommend you to use a 400watt PSU on a HD7750 that doesnt even use more than 60watts then continue reading below.

if you think the recommended PSU capacity is just about right, think again.

like i said, most true PSUs have a non-continuous peak output of 1.5-2.0 times higher than their rated continuous output, which means a 500watt PSU can output 750-1,000watt for a few milliseconds.
      spike surges from cold boot doesn't last more than a hundred millisecond, the spike surges aren't caused by the components of a computer but by the inductors when they charge up, kill-a-watt just has a slow poll-rate to even mark how long the spike lasted, you'll need an oscilloscope to do that.
this would mean the PSU can handle the aggressive spike without tripping the OCP, although tight OCP settings could interpret that surge as a short circuit.
you can run a generic PSU at it's rated wattage for not much more than a second or two, after that it fries.

--- End quote ---

When I read "^no because most", I applied that to the entire message. Including the part about the buffer. :(

I didn't know they used Generic. I figured it was the SLI/Crossfire capability. So if the card supports 4-way then the 'Recommended PSU' was the total maximum that four cards would need plus a little extra for the system.

I've always stuck with "nothing under 1000-Watts" when making systems, and always with Corsair ...until they start making shitty products then I'll look at other PSU.

As for a kill-o-watt meter, I've never used one because I can watch my UPS's LCD for by the second power fluctuations. I remember it spiking to ~350-Watts when I'd turn on the old CRT monitor I had running on the second machine. Then dropping to something like 212-Watts.

Figured most people don't think about the 'kick'. Figured a Kill-o-watt meter would provide the same function as my UPS, but for a cheaper price.

Though, originally I was thinking it might be a case of 'Bad Caps' those are still turning up on Mobos :\

kitamesume:
so im already telling you, the recommended PSU capacity on the GPU manufacturer list is too farfetched to be relied on, you must do your own math. although it isn't bad to follow it, but you wouldn't be needing to add much of a buffer if you do so, as you may see, its 1.5-2.0 times over the average setup's max power consumption, thats already a 25-50% buffer.

Pentium100:

--- Quote from: kitamesume on December 17, 2012, 03:40:27 AM ---so im already telling you, the recommended PSU capacity on the GPU manufacturer list is too farfetched to be relied on, you must do your own math.
--- End quote ---

Well, it is written with the cheapest power supplies in mind - the ones that can only deliver half of rated power. Then the manufacturer can reduce the number of people calling support because their card does not work due to underpowered power supply.

You won't need a 500W Corsair PSU to run that card, but you might need a 500W Q-Tec PSU...

kitamesume:
exactly, so whats the point of quoting me for it?

Ivon:
Can we just say...crisis averted?  :P

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