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Author Topic: Alternative PSU for BFL Single  (Read 977 times)
Pyr3x (OP)
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October 27, 2013, 05:26:14 AM
 #1

I recently swapped the PSU on my BFL Single 60 GH/s unit. Before I swapped it it would hash at around 57 GH/s, after I replaced it with a 1000w Corsair PSU (all I had) it began running a tad over 60.

Now that is not an issue however, I started to wonder since I replaced it with a 1000w PSU does that dictate the actual power draw out of the wall or is that simply what I assumed it was "the max power output"?

Any feedback would be appreciated.

Thank You 

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MWNinja
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October 27, 2013, 05:32:48 AM
 #2

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles. It's wall power draw depends totally on what is hooked up to it.
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October 27, 2013, 06:44:02 AM
 #3

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles. It's wall power draw depends totally on what is hooked up to it.

Exactly  Wink 

Also,that PSU is not going give a decent effiency until its drawing about 80% of max,which would be 800 watts.Until then the effiency is going be poor  Sad

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Pyr3x (OP)
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October 27, 2013, 07:04:22 AM
 #4

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles. It's wall power draw depends totally on what is hooked up to it.

Exactly  Wink 

Also,that PSU is not going give a decent efficiency until its drawing about 80% of max,which would be 800 watts.Until then the efficiency is going be poor  Sad

Would you be so kind as to elaborate further? I am assuming you are referring to overall cost of operation?

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October 29, 2013, 05:11:09 PM
 #5

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles. It's wall power draw depends totally on what is hooked up to it.

Exactly  Wink 

Also,that PSU is not going give a decent efficiency until its drawing about 80% of max,which would be 800 watts.Until then the efficiency is going be poor  Sad

Would you be so kind as to elaborate further? I am assuming you are referring to overall cost of operation?

He's talking about PSU AC to DC conversion efficiency. Most power supplies are most efficient at 50% power load.  (not 80%)

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October 29, 2013, 06:32:11 PM
 #6

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles. It's wall power draw depends totally on what is hooked up to it.

Exactly  Wink 

Also,that PSU is not going give a decent effiency until its drawing about 80% of max,which would be 800 watts.Until then the effiency is going be poor  Sad

It's going to be at most 2% less efficient.  Hardly a deal breaker.
rograz
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October 29, 2013, 11:37:28 PM
 #7

It's not going to draw 1000 watts at the wall unless you load it up with 3 singles.

4 singles here on a FSP 1000w 80+ gold, 965W at the wall.
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October 30, 2013, 01:32:27 AM
 #8

Get a platinum power supply, you would save more energy in the long run....
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October 30, 2013, 01:38:57 AM
 #9

These power supplies also have really poor power factor correction, which is why they run hot. Fortunately we pay for watts and not volt-amps, but still it's pathetic.

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