Introduction
The Hipro HP-D3057F3H is an OEM unit which HP used (interchangeably with the Bestec ATX-300-12Z) in their computers for a number of years – as early as the days of LGA775-based Pentium 4s, and right into the early days of LGA1156. I have previously reviewed one of these power supplies (in fact, it was the second power supply review published here). However, things have changed here at Hardware Insights since then. I have a new load tester, a new oscilloscope, the ability to monitor temperatures, and we go into much more detail than we did then. Since I have been able to acquire another unit which is in mint condition, I have decided to revise the review.
First Look
Considering that these power supplies are, in fact, 5V heavy, it surprises us that HP continued to use them in new PCs for as long as they did. With that said, however, 19A is still enough 12V capacity for a basic PC, as long as you don’t go trying to power anything more than an entry level graphics card. The unit has a grainy grey finish to it – which is about as ugly as they come. Being an OEM power supply, however, it’s not as much of a problem as it would be on a retail unit. After all, few who purchase the computers that these are installed in really care how they look at the back.
The cable configuration consists of a 24-pin-only ATX connector, a 4 pin ATX12V CPU power connector, two SATA connectors, five Molex connectors, and one FDD power connector. This is another area where this model shows its age. More modern power supplies have more SATA power connectors than this. Even though this is enough for a basic office computer with one HDD and one DVD drive, it would have been nice if HP would allow for upgrades. On the plus side, the main ATX and ATX12V connectors have 16AWG wires; the other wires (apart from the FDD connector) are 18AWG, the minimum recommended.
The intake grille is decent. It uses a honeycomb structure, which is quite open and allows for good airflow. I’m not a big fan of the exhaust grille, though (ba-dum tishhh). It is punched out and far more restrictive than it needs to be. Since this unit lacks PFC, there is a voltage selector switch on the back, which HP usually cover with a sticker. The green LED lights while the unit is in standby mode, and when the PC is turned on, it goes out briefly before lighting back up in response to the Power Good signal.
Loading ...