EVGA SuperNOVA 1600 P2 Power Supply Review

EVGA recently introduced its flagship power supply, the SuperNOVA 1600 P2. In addition to monstrous capacity, it also features 80 PLUS Platinum efficiency, promises top performance levels and offers silent operation in semi-passive mode.

EVGA is quite active in the power supply market; in a rather short period, the company managed to earn itself a good reputation. Surely, EVGA's close cooperation with Super Flower played a big role in this, providing the opportunity to release high-performing products at modest prices. EVGA already had an 80 PLUS Gold-rated offering with 1.6kW capacity. But it seems this wasn't enough, so the company released a Platinum-rated version, too. And according to our sources, EVGA won't stop at Platinum; once Super Flower has its high-power Titanium platform ready for production, it will join EVGA's portfolio (the 1600 T2 is already available).

Currently, the only other high-capacity Titanium-rated PSU is Corsair's AX1500i, and it will be interesting to see how Super Flower's implementation scores against that compelling product.

The 1600 P2, which we're reviewing today, promises 1600W of continuous power under high operating temperatures and up to 92 percent efficiency (with 115V input). On top of that, it employs a fully modular cabling design, which makes its installation much easier.

Internally, only Japanese capacitors are used, according to EVGA. Capacitor choice is crucial in a power supply, since it affects not only the unit's reliability, but also its performance over time. Today, Japanese caps are considered the best, with the Taiwanese versions following and Chinese models coming in last.

Most enthusiasts won't need such a powerful PSU, especially now that the glory days of cryptocurrency mining are over. However, this category carries lots of prestige, since only elite companies have products worthy enough to enter it. In addition, the most extreme users with enough cash to buy four high-end graphics cards (and overclock them) may need all of the 1600 P2's output. Under overclocked conditions, the energy consumption of components like GPUs and CPUs goes sky-high, stressing even the strongest of PSUs. This is why world-class overclockers prefer to use dedicated power for their video cards.

Again, the efficiency of the Platinum rating shouldn't be taken lightly, since it's extremely difficult for a PSU with such high capacity to meet the 80 PLUS requirements. As output increases, energy losses become more difficult to control. On top of that, the 115V input and 1600W ceiling put this model on the edge of a 15A breaker's tolerance. Even if we assume that the mains voltage with 15A current will remain stable, the maximum input to the PSU is 1725W (115V * 15A). This means that the PSU should have close to 93 percent efficiency at full load in order to avoid exceeding the breaker's 15A limit. This is close to impossible, of course, even for a Platinum-rated PSU, so we expect the current output to be a little higher under full load, at around 16A. EVGA thankfully thought of this and provides a thick power cord that should have no problem at such high amperage.

The protection features list looks poor for a high-end PSU like this one, but the only crucial deficiency is a lack of over-temperature protection (OTP). We strongly believe that such safeguards are essential for every PSU, especially a high-capacity one that utilizes a semi-passive mode. If anything goes wrong and the fan stops spinning, the only mechanism protecting the PSU (and possibly the rest of the platform) is OTP. Thus, it should be present in every power supply, regardless of price or capacity.

For cooling, a double-ball-bearing fan is used. It is of good quality and strong enough to move heat out of the PSU's internals. In contrast to the 1600 G2, this unit features a semi-passive mode. Once selected, it keeps the fan from spinning under light loads or low internal temperatures.

The 1600 P2 is huge, both in dimensions and weight, though this is to be expected since this unit is a real powerhouse. EVGA's warranty currently is the longest provided for a PSU product, spanning 10 years (you can find EVGA's terms here). At the time of writing, the price difference between the 1600 P2 and the 1600 G2 was $30, the 1600 P2 being more expensive since it features higher efficiency. This is a small amount given the high purchase prices and the fact that the 1600 P2 not only sports Platinum efficiency but also a semi-passive mode.

This thread is closed for comments
25 comments
    Your comment
  • damric
    Good review, but missing the hot box testing to see if this thing regulates and suppresses ripple at 50C as advertised.
  • Aris_Mp
    All tests were conducted at high ambient temperatures which during full load were above 47C. Only the Cross-Load tests were conducted at 28-30C.
  • SinxarKnights
    I appreciate the detailed review.
  • Giannis Karagiannis
    Very detailed review indeed. There isn't really anything that could be covered and it is not. I don't think that there are many PSU manufacturers out there that can test their products so extensively.
  • Dark Lord of Tech
    Too light for me I have the 2000w coming from Dabs when it comes to retail.
  • Aris_Mp
    I had the opportunity to test the 2 kW model (from Super Flower) and it is indeed superb. But it will provide 2 kW only with 230 VAC input since a normal socket can deliver only up to 15 A of current.
  • damric
    276663 said:
    Too light for me I have the 2000w coming from Dabs when it comes to retail.


    Where are you from that you need all that power? Cybertron?
  • damric
    1903369 said:
    All tests were conducted at high ambient temperatures which during full load were above 47C. Only the Cross-Load tests were conducted at 28-30C.


    47C ambients? Must have been sweating your language, please off, or you are language, please me.
  • Dark Lord of Tech
    I'm going to power my Skynet build with it.
  • damric
    276663 said:
    I'm going to power my Skynet build with it.


    One day you need to show us a picture of everything. I've seen little snapshots here and there, but I'd like to see it all in one thread.
  • Dark Lord of Tech
    I'm starting a white and black build , a Snow Beast , next week.
  • damric
    With the Krait motherboard? Or is there another white/black?
  • Dark Lord of Tech
    No way this one.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16813132414
  • damric
    Oh wow I haven't seen that yet.
  • Aris_Mp
    410076 said:
    1903369 said:
    All tests were conducted at high ambient temperatures which during full load were above 47C. Only the Cross-Load tests were conducted at 28-30C.
    47C ambients? Must have been sweating your language, please off, or you are language, pleaseing me.


    The PSU is inside a special-made box (hot-box) for the high temp tests.
  • Dark Lord of Tech
    Sweet board going to order it on monday.
  • damric
    1903369 said:
    410076 said:
    1903369 said:
    All tests were conducted at high ambient temperatures which during full load were above 47C. Only the Cross-Load tests were conducted at 28-30C.
    47C ambients? Must have been sweating your language, pleaseoff, or you are language, pleaseing me.
    The PSU is inside a special-made box (hot-box) for the high temp tests.


    Wouldn't your FLIR show that the box is hot?
  • Aris_Mp
    no point since the box is insulated so from the outside the temperature will be lower. Also if i open the lid to take a snapshot with FLIR the temperature will drop immediately by 5 C at least (ambient) messing with the test.

    I already know what happens inside the box thanks to two temperature probes I have installed in it, so no need to use my FLIR on it. However on next review I will try it.
  • damric
    1903369 said:
    no point since the box is insulated so from the outside the temperature will be lower. Also if i open the lid to take a snapshot with FLIR the temperature will drop immediately by 5 C at least (ambient) messing with the test. I already know what happens inside the box thanks to two temperature probes I have installed in it, so no need to use my FLIR on it. However on next review I will try it.


    Fair enough. It will be excellent when Tom's Hardware adopts a consistent review standard. Yours was one of the best PSU reviews yet. There's other nitpicks I have but they are nothing major like chart/graph formats could be easier to read.

    In your opinion everything held up in close to 50C conditions then?
  • loki1944
    Nice, if I ever go 3-4 way SLI I'll upgrade to this from my 1300W G2.
  • ykki
    Quote:
    I'm going to power my Skynet build with it.

    Dont forget the OFF switch. Arnold is a busy man.
  • Aris_Mp
    "In your opinion everything help up in close to 50C conditions then?"

    around 45C is much more realistic. 50C are too much for modern chassis. However when needed I crank up the heat inside my hot box to see how the PSU performs. Like in this case that I deliberately exceeded my usual 45C and went to almost 48.
  • g00ey
    The "Power Specifications" table on the second page is wrong. The third line must be "Maximum Watts" and not "Maximum Volts". Moreover, the Wattage calculation for the 3.3V rail is missing (should be 3.3*24 given that the maximum amperage for the 3.3V rail is 24A, this must be verified). The value 120 (W or VA) must be for the 5V rail since 5V*24A=120 VA/W...

    Also note that I'm making a distinction between Watts (W) and Volt-Amperes (VA) although they have the same dimension. The reason is this:

    http://electronicdesign.com/energy/what-s-difference-between-watts-and-volt-amperes

    I hope you do the same.
  • Aris_Mp
    275838 said:
    The "Power Specifications" table on the second page is wrong. The third line must be "Maximum Watts" and not "Maximum Volts". Moreover, the Wattage calculation for the 3.3V rail is missing (should be 3.3*24 given that the maximum amperage for the 3.3V rail is 24A, this must be verified). The value 120 (W or VA) must be for the 5V rail since 5V*24A=120 VA/W... Also note that I'm making a distinction between Watts (W) and Volt-Amperes (VA) although they have the same dimension. The reason is this: http://electronicdesign.com/energy/what-s-difference-between-watts-and-volt-amperes I hope you do the same.


    The max power is the combined max power that both rails can deliver. Hence while each rail can go up to 24 A both of them can deliver only up to 120 W (combined). This means that either the 5V rail can go up to 120 W alone (so zero W for the 3.3V one) or the 3.3V rail can go up to 24 A and the 5V at 8.16 A.

    In DC we use Watts. VA is for AC. In DC Watts = VA

    As for the max voltage yeap this will be fixed.