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Technical information
Brand Corsair
Output wattage 1600
Form Factor ATX
Wattage 1600 watts
Power supply design Full Modular
Item dimensions L x W x H20 x 15 x 8.6 centimetres
Item weight 2.65 Kilograms
About this item
1600W of Ultimate Power: Delivers 1600W of continuous, ultra-stable, 80 PLUS Titanium efficiency power
Top Tier Components: 100% 105°C Japanese capacitors, top-specification internal components and digital design deliver over 94% efficiency.
The Only Consumer PSU with Gallium Nitride Transistors: Totem-pole PFC Gallium Nitride (GaN) transistors for superior efficiency in a smaller form-factor.
World Class Electrical Performance: Incredibly stable voltages and ultra-low ripple noise. Ability to toggle singlemultiple 12V rails
Software Monitoring: CORSAIR LINK software provides in-depth monitoring for PSU temperature, fan speed, voltages, current, AC/DC wattage and efficiency
Fan size : 140mm.Continuous output rated temperature C: 50°C
EPS12V Version : v2.92
iCUE Compatibility : Yes, Intel C6C7 sleep state compatible : Yes, Modern Standby Compatible : No
Costumers Product Reviews
Pros & Cons
I purchased this from elsewhere but unfortunately paid over to odds due to it not being available from Amazon at the time. I bought the Corsair AX1600i to replace an EVGA 1600 SuperNova T2 PSU. Although the EVGA SuperNova 1600 T2 is an excellent PSU it turns out it doesn't haven't granular fan control so it's completely silent until the internals reach 50 degrees Celsius and then the fan kicks in for a couple of minutes and is quite loud. On a water cooled system which is nearly silent most of the time this fan noise was unfortunately too distracting for me.
I had originally dismissed Corsair AX PSUs due to some negative customer reviews regarding coil whine and intermittent power issues but these did seem to be with the earlier models. I decided to go with the Corsair AX1600i which has incredibly positive reviews from many top websites and consistently comes out on top in terms of quality, efficiency, performance and features.
The Corsair AX1600i is based on the Flextronics digital platform but unlike most other PSUs out there also uses Gallium Nitride (GaN) MOSFETs to achieve incredible efficiency. This Flextronics platform is expensive but also delivers very stable power on all rails.
In the box is the PSU itself, a handy nylon holder bag for all of the modular cables, some nylon cable ties, 4 x screws, some red/white/blue stickers and, unusually, a C19 Power Cable (I'll talk about this a bit later). The retail packaging is decent quality and protects the PSU and the other bits very well.
This PSU is massive at 150 × 86 x 205 mm and you may struggle to fit it into some cases. Although the height and width are standard, the depth is considerably larger than most PSUs (but not as deep as the EVGA SuperNova 1600 T2). I had to really juggle things about to get it to fit inside a BeQuiet Dark Base Pro 900!
The PSU has an IEC C20 socket on it and is supplied with an IEC C19 lead. This is due this PSU being capable of drawing too much current from a regular C13 cables in certain countries (the UK is able to supply a max of 3000W from a mains outlet though). So this design consideration has been done for safety reasons but it does make it somewhat inconvenient because that bag of 100 kettle leads and extensions you have will not fit this PSU!
It's a fully modular PSU so you can simply connect the cables that you actually need. This beast can supply 8 x PCIe connections and is very capable for multi GPU systems. Most of the cables are encapsulated in a round nylon mesh, like other modular PSUs. The 24 pin motherboard cable is like a hose pipe and particularly difficult to route around the case. The the SATA / Molex cables are more like ribbon cables and I found these a bit more difficult to cable manage too. You can buy cable replacement kits for this PSU if you really don't like the ones supplied though.
You can connect this PSU to a USB 2.0 header on your motherboard and this allows you to monitor it with the Corsair Link software. This was probably the most impressive element of this PSU to me, being able to see in real-time how much power is being drawn from the wall, what efficiency the PSU is running at, how much current is being drawn on the individual rails (such as CPU and GPU). You can also see the temperature and voltages and even control the fan speed. As a techy I really love being able to see this kind of information when gaming, overclocking or system stress testing etc.
The PSU fan ramps up to 100% and can be heard for a few seconds when first turning on the PC which might be quite noticeable at night or quiet times. However, I've yet to make the fan come on when actually using my PC on this PSU which means it runs completely silent all of the time. The maximum I can draw from this PSU is 700W at the moment and even after a couple of hours the PSU temp stays in the low 40's and the fan speed at 0 rpm. For those who want piece of mind that their PSU is being cooled you are able to manually control the fan and having it running all the time, if you prefer, but it's not the quietest of fans!
Corsair provide a 10 year warranty on this PSU which is excellent. It certainly gives you some piece of mind with an expensive investment such as this PSU. From my experience PSUs so last for years so long as they are looked after and not over worked. I have used Corsair's RMA process before for a keyboard and although it took a few days it did get sorted fairly quickly with no problems.
I'm absolutely delighted with this PSU and highly recommend it. My next will definitely be a Corsair AXi.
Pros:
- Excellent efficiency (mid 90s all the time)
- Corsair Link software gives great insight into the PSUs performance
- Modular with plenty of connection cables
- 10 year warranty
- 1600W is enough power for pretty much any use case
- Silent in operation up to 50% load with granular fan control
Cons:
- Expensive.... but worth it
- IEC C20/C19 socket and cable so not compatible with regular C13 kettle leads
- Some of the modular cables are not easy to cable manage
- The fan ramps up when turning on the PSU for a few seconds and it's not the quietest of fans.
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