About 10 months ago I paid somebody to build me a computer. Was going to build it myself but with all the parts I wanted it turned out cheaper to get him to build it than if I had of purchased all of the parts myself.
One of the components I wasn't too sure with and just went with what was suggested was the PSU. Ended up with a generic, no name, literally no brand name, 760W power supply. To which you probably could of already guessed but the power supply didn't want to supply power anymore.
I'm getting it replaced by warranty but I'm pretty sure it's going to be another very low quality PSU. So I've been spending the last two days researching into different PSU's.
During this 2 days of reading, I've come across a question I can't seem to answer for myself. Being, "Do I really need a 760W power supply unit?" ...
Using eXtreme PSU Calculator I came up with a recommendation that my system needs to use 597 Watts. By using the following inputs:
1 CPU, i7-3770
4 sticks of DDR3 RAM
1 NVIDIA GeForce GTX 550Ti
3 High RPM SATA HDD (2 internal 1 external)
1 DVD RW Drive
PCI NIC
8 USB Devices (Never used more than 5 at once but counting for max possible)
3 Cold Cathodes (actually 1 but with a ridiculous amount of LED's)
4 120mm LED Fans (I live in Rural Australia)
Capacitor Aging 30% (as it'll spend long stretches powered on and intend keeping it for a few years.)
With these parameters put into the calculator it says 597 Watts at 90% system load or 657 Watts at 100% system load. Though I highly doubt all my hardware will be drawing 100% of what they can all at the same time.
My questions now being.
1) Is this calculator correct in that being what my system needs?
2) Do I need or will I greatly benefit from a 760W PSU?
3) If either above answer is NO, then how low Watt a PSU should I be able to safely use?
4) -- more food for thought than an important to answer question -- Was the no name, cheap, 760W PSU that the builder sold me really much over-rated and really closer to 600W? Did he not want to put in the next lowest he had, 600W, because it was almost guaranteed to blow due to also being over-rated?
Any answers, suggestions or advice would be greatly appreciated.
Asher
One of the components I wasn't too sure with and just went with what was suggested was the PSU. Ended up with a generic, no name, literally no brand name, 760W power supply. To which you probably could of already guessed but the power supply didn't want to supply power anymore.
I'm getting it replaced by warranty but I'm pretty sure it's going to be another very low quality PSU. So I've been spending the last two days researching into different PSU's.
During this 2 days of reading, I've come across a question I can't seem to answer for myself. Being, "Do I really need a 760W power supply unit?" ...
Using eXtreme PSU Calculator I came up with a recommendation that my system needs to use 597 Watts. By using the following inputs:
1 CPU, i7-3770
4 sticks of DDR3 RAM
1 NVIDIA GeForce GTX 550Ti
3 High RPM SATA HDD (2 internal 1 external)
1 DVD RW Drive
PCI NIC
8 USB Devices (Never used more than 5 at once but counting for max possible)
3 Cold Cathodes (actually 1 but with a ridiculous amount of LED's)
4 120mm LED Fans (I live in Rural Australia)
Capacitor Aging 30% (as it'll spend long stretches powered on and intend keeping it for a few years.)
With these parameters put into the calculator it says 597 Watts at 90% system load or 657 Watts at 100% system load. Though I highly doubt all my hardware will be drawing 100% of what they can all at the same time.
My questions now being.
1) Is this calculator correct in that being what my system needs?
2) Do I need or will I greatly benefit from a 760W PSU?
3) If either above answer is NO, then how low Watt a PSU should I be able to safely use?
4) -- more food for thought than an important to answer question -- Was the no name, cheap, 760W PSU that the builder sold me really much over-rated and really closer to 600W? Did he not want to put in the next lowest he had, 600W, because it was almost guaranteed to blow due to also being over-rated?
Any answers, suggestions or advice would be greatly appreciated.
Asher
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