Page 2 - Physical Look - Outside
The Cooler Master V750 750W power supply, as part of their V series, has a lot in common with the Cooler Master V1000 1000W I reviewed back in July 2013 in terms of external appearance. The difference is the smaller wattage 2016 model we have today has a depth of only 14.0cm rather than 17.0cm. This makes the V750 one of the shortest power supplies we have reviewed here in APH Networks, and looking at its sheer size -- or lack thereof -- is an asset to behold, despite not having a higher level certification. For example, power supplies like the Strider Platinum ST75F-PT is also fully modular and of the exact same size, but the ST75F-PT is Platinum certified rather than Gold like the V750. That said, most modular power supplies are longer than non-modular units by a centimeter or two, as the extra length is needed to accommodate its connector board at the back. We will take a look inside the PSU on the next page. For most ATX or eATX chassis, length should not be much of a problem, if at all. However, if you have a mATX or mITX case that takes standard power supplies, the shorter length will definitely serve as an advantage, especially considering the fact the V750 is fully modular.
From our view above, you can see the 750W has nearly the same enclosure design and finish as the V1000 as aforementioned, and the bottom fan grille is almost identical in appearance as well. Its textured dark grey spray finish creates a sleek yet subtle appearance, along with the "V750" imprints on the side indicating its family and model. To make sure you will see the branding sticker the right side up at all times, the orientation of it is different on both sides, so whatever side facing the user after installation will always be correct. Residing behind the honeycomb mesh array fan grille -- designed for minimal air resistance while providing adequate protection -- is the primary and only cooling fan installed. The 120mm Silencio FP fan generates airflow by drawing air from the bottom of the power supply over its internal components to keep the temperatures in check. Exhaust heat is allowed to leave at the back of the power supply through the large secondary mesh opening. Meanwhile, four screws secure the power supply case together; where one screw has a warranty seal over it, so you cannot open the Cooler Master V750 without voiding the five year warranty.
Starting from the back part of the power supply, we have the same familiar honeycomb mesh design like most PSUs with bottom mounted fans; and the standard on/off switch located above the male connector for power input on the western edge. The low resistance honeycomb mesh design is implemented to maximize airflow and minimize air resistance. This is done as heat needs to leave the power supply as easily and efficiently as possible, because the Cooler Master V750 750W incorporates only one 120mm fan at the bottom, with no auxiliary fans. It is also implemented in a reasonably efficient manner, as these components take up minimal amounts of room at the back. As with most new power supplies, the Cooler Master V750 has an automatic full range (100V-240V) AC line voltage selection, so the user does not have to worry about manually selecting input voltage.
Like many power supplies we have covered here at APH Networks, such as the Cooler Master V1000, the Cooler Master V750 is a fully modular power supply. This means all cables are completely detachable from the main unit. While it is somewhat questionable with regards to why this is necessary, since cables such as the ATX 24-pin and ATX 4-pin/EPS 8-pin have practically an 100% chance of being connected at all times, it may prove to be beneficial to an extent when building your computer initially. The downside to this is very negligibly higher electrical contact loss at the connectors compared to permanently fixed cables. In the end, this comes down to personal preference, and I still personally prefer fully modular units.
The rear cable connection panel is done nicely. Similar connectors are grouped together; and are laid out in a very logical manner. To ensure you know what is going on, all of them are labeled for minimal ambiguity. However, the 24-pin motherboard connector is split into two different blocks (With a total of 28 pins, too), which is kind of weird. Where have we seen this before? Yep, none other than the Seasonic Platinum 1000W and Cooler Master V1000 1000W. However, we know this is not a Seasonic build. With that in mind, from the top to bottom and left to right, we have four PCI Express/CPU outputs for four 6+2 and two ATX 4+4 pin connectors, ten of the 28 ATX motherboard pins, four peripheral outputs for eight SATA/six Molex/one floppy, and the rest of the ATX 24-pin connector block. Incompatible outputs will not physically fit into each other, so I think Cooler Master has done a great job in this regard. This generous array of available connectors should be more than sufficient for casual users and power enthusiasts alike.
The external build quality of Cooler Master's V750 750W power supply is excellent as always -- a good indication the company is serious about the product they are selling. We will take it apart in just a moment. Fit is done well with minimal panel gaps, and all edges are nicely finished off. The level of refinement with regards to the external build quality is comparable with all the other high quality PSUs I have used in the past. As aforementioned, we will crack open the power supply to see what components are inside in the following section.
The voltage specification label on the right panel of the Cooler Master V750 750W. There are two main virtual rails. Up to 25A can be delivered via the +3.3V rail for a total of 82.5W; while the 22A on the +5V rail brings the output to 110W in this area. The total combined output for the +3.3V and +5V rail is 120W. In other words, your power allocation combination must fall within the limits of the listed specifications. Meanwhile, a single powerful +12V rail delivers up to 62A (744W) to reduce operating overhead compared to multiple +12V rails. Overall, the combined power output for the whole V750 is... well, 750W haha. Again, your power distribution in your system must fall within the limits provided -- it must not exceed 82.5W on the +3.3V rail, 110W on the +5V rail and 120W combined for both, 744W on the +12V rail, and 750W combined between the +12V and +3.3/+5V rails. It does sound a bit confusing to understand how this works at first, but generally speaking, this configuration allows fairly flexible power demands and should be sufficient to accommodate most users. The overall distribution is quite reasonable for a 750W power supply.
The Cooler Master V750 750W is 80 Plus Gold certified, which means that it is certified to be at least 87%, 90%, 87% efficient at 20%, 50%, and 100% load, respectively. Higher certifications available at press time include 80 Plus Platinum and 80 Plus Titanium.
A total of nine modular cables are included out of the box. All modular cables are flat and easy to bend, making them extremely easy to work with. Surprisingly, all wires are 18 AWG, including high current PCI Express and ATX/EPS connectors. Usually, manufacturers will fatten them up to 16 AWG, but Cooler Master opted out on that.
The following modular cables are included out of the box:
- 1x ATX 20+4 pin, 55.0cm
- 2x ATX/EPS 4+4 pin, 60.0cm
- 1x PCIe 6+2 pin, 2 connectors, 60.0cm to first connector, 12.0cm spacing thereafter
- 1x PCIe 6+2 pin, 2 connectors, 50.0cm to first connector, 12.0cm spacing thereafter
- 2x SATA, 4 connectors each, 45.0cm to first connector, 12.0cm spacing thereafter
- 1x Molex, 3 connectors, 45.0cm to first connector, 12.0cm spacing thereafter
- 1x Molex and Floppy, 4 connectors, 45.0cm to first connector, 12.0cm spacing thereafter, 1 Floppy at the end of dongle
These are just specified measurements from the manufacturer. Most users should have no problems with Cooler Master's V750 750W, even if your case has a bottom power supply mount. 50cm is the general standard, and this power supply met or exceeded this recommendation for all critical components. The SATA and Molex cables are kind of short though, making the V750 more suitable in an mITX system rather than an eATX system. The 12cm spacing between connectors is kind of tight as well; 15cm would have been more preferable.
Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Minor Tests and Conclusion
