We only want the best for our rig, and this 1000-watt power supply is the flagship model of LEPA’s MaxBron lineup.
The MaxBron B1000-MB is both powerefficient and reliable. Under peak loads, the PSU will deliver up to 88% efficiency, which meets the 80 PLUS Bronze certification standards. The MaxBron also supports Haswell’s C6/C7 sleep state—a key concern for us as we’re using Intel’s Core i7-4770K.
Another thing we like about the MaxBron B1000-MB is that it offers plenty of connectivity options. For instance, LEPA includes both a +12V 4+4-pin and 8-pin connector, so we had the freedom to select a motherboard with extra power for overclocking. The 23.6-inch CPU power cables also gave us plenty of room to reach CPU power headers at the top of our board.
For graphics card support, there are six +12V PCI-E 6+2-pin connectors. The extra PCI-E power connectors provide the freedom to upgrade to a multiple-GPU setup in the future. To power the other components of our build, the unit features 12 SATA and six Molex connectors.
The B1000-MB has a partially modular cabling system, so we only need to use the cables necessary for our current components.
The connectors that are hardwired to the unit are the 20+4-pin main power, the two +12V CPU connectors, and two +12V PCI-E 6+2-pin connectors. Both the hardwired and modular cables feature thick mesh sheathing that will help to prevent cuts and kinks.
That’s especially important for us, as we’ll be routing the cables through tight spaces in our case. In terms of rail distribution, there’s a single +12V rail that can handle a maximum load of 83A, which equates to 996 watts of power. The +5V and +3.3V rails support up to 24A for a combined power of 130 watts.
LEPA installs a 135mm hydraulic bearing fan to cool the power supply.
With the MaxBron B1000-MB, LEPA provides a silicon jelly skin, called the Anti3s Q-Brick, which goes around the corners and sides of the power supply. We elected to leave the Q-Brick out due to space constraints in our build, but it does provide a number of benefits; it can reduce shock during transportation and diminish static electricity from the power supply. The MaxBron B1000-MB certainly delivers enough power for our build, and we loved having the long CPU power cables to easily route the wires behind the motherboard tray. The partially modular design also made it easier to create a clean case interior. We expect years of reliable performance from this power supply.
Rated continuous output: 1000 watts; 12V rails: 1 (83A); Efficiency rating: Up to 88%;
Fan: 135mm; PCI-E: 6 (6+2-pin); Main: 20+4-pin; EPS 12V: 2 (1 4+4-pin and 1 8-pin);
SATA: 12; 4-pin Molex: 6; Floppy: 1; Warranty: 2 years