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Enough juice?

S

stimike

n00b
Joined
Sep 7, 2010
Messages
31
Running a Corsair TX750 I'm looking to power:

2 560 Ti 448 core MSI Twin Frozr III
1 Crucial m4 128 GB SSD
3 7200 RPM HDD
1 DVD-RW
i7 930 OCed to 4ghz
Noctua NH-D14 Cooler
18GB DDR3 1600 (Gskill Ripjaw)
5 case fans (3 of which are 120mm) (nothing fancy, just some coolermaster fans)
On a Gigabyte X58A-UD3R

That gonna be enough juice?
 
Its more than enough, however, I feel that since the CPU is at 4ghz, you might want alittle bit of headroom because you might be stressing the 750 out. It if itwas 750 gold, i dont mind, but if 750 is silver or bronze might not be very good to use.
 
cheenou77 said:
Its more than enough, however, I feel that since the CPU is at 4ghz, you might want alittle bit of headroom because you might be stressing the 750 out. It if itwas 750 gold, i dont mind, but if 750 is silver or bronze might not be very good to use.
Click to expand...

The efficiency has nothing to do with how well it powers your components, only how much it effects your energy bill. A 750w unit is more than enough for the OP's machine, and the TX750 is a very good supply.
 
cheenou77 said:
Its more than enough, however, I feel that since the CPU is at 4ghz, you might want alittle bit of headroom because you might be stressing the 750 out. It if itwas 750 gold, i dont mind, but if 750 is silver or bronze might not be very good to use.
Click to expand...

750 bronze, silver, or gold should ALL be able to output 750W.

The rating has to do with how efficient they are at converting from wall power to 12,5,3.3v, not the percentage of the power supply's rated power that the power supply will put out.

Say you have a sucky 750W that is only 70% efficient. When outputting 750W, it will suck 1071.428571428571W from the wall.

Move that up to 80%, and the draw from the wall drops to 937.5W

Go to 90% and the draw from the wall drops to 833.3W

That being said, you really never should run a computer supply at anywhere close to full load for any period of time.

Some companies do have power supplies that are rated at a "continuous" output. In that case, it should be fine to run them at their rated "continuous" output. Their max output will also be quite a bit higher then their rated "continuous" output.
 
Corsair and other quality manufacturers rate continuous output.
 
cyclone3d said:
750 bronze, silver, or gold should ALL be able to output 750W.

The rating has to do with how efficient they are at converting from wall power to 12,5,3.3v, not the percentage of the power supply's rated power that the power supply will put out.

Say you have a sucky 750W that is only 70% efficient. When outputting 750W, it will suck 1071.428571428571W from the wall.

Move that up to 80%, and the draw from the wall drops to 937.5W

Go to 90% and the draw from the wall drops to 833.3W

That being said, you really never should run a computer supply at anywhere close to full load for any period of time.

Some companies do have power supplies that are rated at a "continuous" output. In that case, it should be fine to run them at their rated "continuous" output. Their max output will also be quite a bit higher then their rated "continuous" output.
Click to expand...

Well said. :)
 
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