FSP Hydro PTM 750W (Page 2 of 4) | Reports

Page 2 - Physical Look - Outside

As a new product, the exterior design of the FSP Hydro PTM 750W does not surprise me at all. It looks like my favorite food, which is tofu. I really do not think there is any point to use different shapes other than a cuboid for power supply unit design. Therefore, the challenge of designing a good looking power supply unit is really about how to place things like the power plug, switch, grille, ventilation holes, output sockets, and even stickers. When it comes to measurements, this product is 15.0cm in length, 17.0cm in width, and 8.6cm in height. It is not a small power supply unit for sure. The size is what a 750W PSU should be like. For ATX form factor PSU, I normally do not care about the size, as long as it can be put in a mainstream ATX case.

The above photo shows three sides of the FSP Hydro PTM 750W; namely the bottom, back, and left sides. On the bottom, there is a grille above the cooling fan. The details of the cooling fan will be investigated later. The top side of the power supply unit is not shown in the photo, but that does not mean there is nothing worth showing. In fact, a sticker can be found on the top side to show the power output specifications.

Now, let us move on to the front of the power supply unit. In the photo, we can see the power input and switch. The power input plug is standard, therefore the user can just reuse a power cord from other equipment if necessary. The rest of the front side panel features a grille for cooling. Cool air can be pumped into the power supply unit from the grille at the bottom. After cooling down the internal components, hot air can then be discharged through the front grille. To install the power supply unit in a computer case, there are four screw holes at the front of the PSU.

The FSP Hydro PTM 750W is a fully modular power supply unit. The good thing is only the cables that need to be used will be connected and thus the computer case will have a cleaner internal look. However, the downside is users have to connect all the cables themselves. It is worth noting the ATX 24-pin connector needs to be used in almost all desktop computers. Overall, I think it is a good thing to have a fully modular power supply unit, since cable kits can be swapped.

The back of the power supply unit is the connection panel. The sockets are easy to use thanks to the labels on the panel; nonetheless it is not the standard two-row pattern. Sorry for the upside down photo. On the right hand side of the panel in the above photo, there are five peripheral power outputs. All the five sockets are grouped together. Besides the peripheral section, there are three sockets for PCI Express connectors grouped together. Two 8-pin CPU output sockets are presented for the ATX 4+4 connections. Last but not the least, the motherboard pins are located underneath the CPU output sockets. Thanks to the good design of the sockets, it is not possible to plug cables into the wrong connectors. For example, the user cannot plug the ATX 4+4 pin to the PCI Express output, even though they look similar in terms of pin layout.

The FSP Hydro PTM 750W features pretty good build quality. The surface of the power supply unit is pleasant to touch, but it is not likely to leave any fingerprints on it. The gaps between panel connections are small and even. Most importantly, there are no sharp edges around the product. The external build quality boosts my confidence, and hopefully this product will also have good internal build quality.

The voltage specification label for the FSP Hydro PTM 750W can be found on the top panel. There are two main virtual rails. Up to 20A can be delivered via the +3.3V rail for a total of 66W. The +5V rail can also deliver 20A, which is 100W. 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 62.5A (750W) to reduce operating overhead compared to multiple +12V rails. Overall, the combined power output for the whole Hydro PTM 750W is 750W. Again, your power distribution in your system must fall within the limits provided -- it must not exceed 66W on the +3.3V rail, 100W on the +5V rail and 120W combined for both, 750W on the +12V rail, and 750W combined between all the positive rails. Normally, users will not need to worry about those configurations, since most of the use cases have already been considered by the engineers of FSP. Generally speaking, the power distribution of this product is fairly reasonable for a 750W power supply unit.

The FSP Hydro PTM 750W is 80 Plus Platinum certified, which means it is certified to be at least 90%, 92%, 89% efficient at 20%, 50%, and 100% load, respectively. There is a higher certification at press time, which is 80 Plus Titanium, though I personally think the 80 Plus Platinum is good enough for most users.

Out of box, we have eleven modular cables, and one power cable coming with the FSP Hydro PTM 750W. The modular cables are generally easy to bend. The flat cables are flexible enough to allow easy cable management in a desktop computer. As for current handling, these wires are 18AWG, which are high enough in this context.

The following modular cables are included out of the box:

- 1x ATX 20+4 pin, 60.0cm
- 2x ATX/EPS 4+4 pin, 70.0cm
- 3x PCIe 6+2 pin, 2 connectors each, 50.0cm to first connector, 15.0cm spacing thereafter
- 2x SATA, 4 connectors each, 50.0cm to first connector, 15.0cm spacing thereafter
- 2x SATA/Molex, 2 SATA and 2 Molex each, 50.0cm to first connector, 15.0cm spacing thereafter
- 1x SATA/Molex/Floppy, 2 SATA, 1 Molex, 1 floppy, 50.0cm to first connector, 15.0cm spacing thereafter

These are measurements I have made. Most users should have no problems with installing FSP's Hydro PTM 750W, even if your case has a bottom power supply mount. 50cm is the general standard, and this PSU has exceeded it on all counts. In terms of color, all the cables are black.


Page Index
1. Introduction, Packaging, Specifications
2. Physical Look - Outside
3. Physical Look - Inside
4. Minor Tests and Conclusion