Hello again, my name is Rodney Reynolds and welcome to another video review. Today I’m looking at the Sigma SP1000C 1000W Power Supply. What’s included are cable ties, modular leads, screws for mounting the power supply in the case, a power cord and a power supply. T his line of power supplies are currently available in many different wattages ranging form 650 to 1000. I will be reviewing the 1000W model which is more than enough for high end computer systems.
Now how is this wattage determined, well to understand that you need to know what rails are, rails are basically well regulated transformers which convert domestic current into voltages that your computer system can use and there are essentially two different rails. The 3.3/5V rail and the 12V rail in this particular case, the approximate maximum peak output of the 3.3/5V rail is 150W and the 12V is 840W which is essentially how the wattage of this power supply is determined. The 3.3/5V rail is responsible for the motherboard, memory, PCI cards, and so on while the 12V rail is responsible for the hard drives optical drives, fan, CPU video cards etc.
Also some might be interested to know the peak amps on each rail while the +3.3V and the +5 volt rails are both 26amps each. There are also four +12V rails and they are all 20amps each. With a combined power of 70amps, please note that a power supply with a single +12V rail is preferred in a multiple video card set-up. There are a couple of important things to remember when selecting a power supply.
The first is wattage, determine how much wattage you are going to require by the amount of hardware that you will be installing. Generally speaking a medium to high end gaming rig will require 500 to 700W power supply. For a hardcore systems like the power supply that’s around 800W, if however you are building an extreme gaming rig with a top of the line multiple video card set up with lots of other hardware, select the power supply that’s around 1000W or greater.
Second it should be at or above 80% efficient at typical load. Third it should meet the latest ATX and other current standards, environmental directives, over voltage, under voltage, and other protections. This power supply meets all current standards. Fourth, I’d recommend choosing a power supply that has APFC or active power factor correction is something that also assists the power supply in being more efficient and therefore stable under load. APFC basically reduces total harmonics, corrects input voltage and it allows for full input voltage range. Thankfully this power supply has APFC. Fifth, there are three main certifications 80+ NVDEA has a line and ATI crossfire, many of today’s high end power supplies meet one or more of these certifications.
At present this power supply doesn’t meet any of these certifications; certifications though can take a while, so this doesn’t mean it won’t be certified. It just means that at the time of this review it was not certified. Sixth, look for a power supply that uses Japanese capacitors, this ensures a much more reliable product than any power supply that uses low grade capacitors. This power supply uses Japanese capacitors, finally get a power supply that has enough leads for your setup, and also consider a power supply that has a modular design because it reduces the cable mess inside the case.
Let’s have a closer look at this power supply considering most high wattage power supplies are very long, this one is surprisingly short. So compact in fact, it will fit all cases including all mid towers, home theater PC, and small form factory cases. It has a gloss paint finish and the housing is steel, they include a 120mm blue LED fan and honeycomb ventilation. This ensures maximum cooling so the power supply will remain cool in almost any environment. Here is the power cord connection and the power switch.
The 24 pin and A pin are hardwired into the power supply and can’t be removed. The remaining though are modular leads, while this power supply doesn’t have all modular leads the required ones are already attached. Modular leads are fantastic because you only need to use the one’s necessary for your particular setup which reduces the cable mess inside the case and this also looks great but it increases the air flow as well.
Finally have a listen to the 120mm fan.
This power supply performs fairly well it’s incredibly short and uses a reasonably quiet 120mm blue LED fan. Now consider that this power supply doesn’t have a lot of AMPS on the +12V rail, so I wouldn’t recommend using this power supply in a top of the line video card multiple configuration because I don’t believe it can handle the load but overall it’s a great product until next time take care.
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