A Detailed Look
The CM Real Power Pro 1,250W power supply features a black chrome electroplate finish that is very attractive but can easily be scratched. The enclosure is 180mm (7.1”) deep and uses a single 135mm fan on the bottom for cooling. Note the absence of a master On-Off switch; not a necessity on a modern PSU but a nice to have feature. I suspect the switch was eliminated to help conserve space (to keep the enclosure size as small as possible) and reduce cost. The heavy duty power receptacle (16A 250V versus the more common 10A 250V) and LED indicator below it are the only two features on the backside panel. The indicator light is red in standby mode when power is applied but the PC/PSU are turned off and lights green when the PC is turned on and the power supply is operating normally.
The fan speed is automatically controlled by the internal component temperature (speeds up as the combined load and temperature increases). The Young Lin Tech high speed fan (DFS132512H) is rated for up to 2,400 rpm at 12V and incorporates dual ball bearings. This fan can move a lot of air (and potentially generate a lot of noise) but the fan speed control circuit limits the maximum speed to around 1,800 rpm’s (9V) to help minimize noise.
The open grill on the back and slot openings across the front allows air to exhaust out of the power supply for cooling all the internal components.
The Real Power Pro 1,250W power supply has a large assortment of cables and connectors, which are all hard-wired into the main chassis. The cables are covered with black, braided plastic mesh sleeving all the way to the end connectors and measure approximately 25” long.
• Main power connector (24-pin/20-pin)
• ATX 12V (4-pin)
• EPS 12V (8-pin)
• (6) PCI Express (6-pin)
• (3) PCI Express (8-pin)
• (7) Peripheral Optical/HDD (4-pin)
• (8) Peripheral Serial ATA (15-pin)
• (2) Peripheral FDD (with adapter)
It’s important for a high output PSU to have plenty of cables and connectors to distribute all that power to the components that need it. The Real Power Pro 1,250W can support up to three high-end video cards with either two 6-pin or one 6-pin and one 8-pin PCI-E connector per card. Notice that three of the six PCI-E cables are fitted with both a 6-pin and an 8-pin connector; take your pick.