3
650W / 750W / 850W 80+ Bronze
Power Supply User Manual
EN
Safety Information
Over-voltage protection (OVP)
Over-voltage protection for the 12V, 5V and 3.3V DC outputs is required to comply with the ATX specification. OVP shuts down
the PSU in the event that the DC outputs exceed a set level, determined by the PSU manufacturer. The minimum voltage levels
required for compliance are 13.4V for the +12V rail(s), 5.74V for the +5V rail and 3.76V for the 3.3V rail.
Short-circuit protection (SCP)
A short-circuit is defined as any output impedance of less than 0.1 ohms. Amongst other things, SCP ensures that the PSU shuts
down should the 3.3V, 5V and 12V rails short to any other rail, or to ground. It also ensures that no damage should occur to the
unit, or your PC’s components in the event of a short.
Under Voltage Protection (UVP)
Under-voltage protection for the 12V, 5V and 3.3V DC outputs. UVP shuts down the PSU in the event that the DC outputs exceed
a set level, determined by the PSU manufacturer.
Over Power Protection (OPP)
The over-power protection (OPP) kicks in when the power we pull from a PSU exceeds its maximum rated capacity. Usually, the
manufacturers give a little room for overpowering the PSU, so the OPP threshold is set to 50 to 100W (in some cases even more)
above the maximum rated wattage of the PSU. In 12V rail PSUs, where OCP is meaningless in most cases, OPP takes
over its role and shuts down the PSU in case the +12V rail is overloaded.
WARNING: This unit unit has no user-serviceable parts inside. Opening the casing presents a risk of electrocution and will
void the product’s warranty. NFORTEC will not be responsible for any result of improper use, including but not limited to, any
use of the product outside of its intended purpose or use inconsistent with the warranty terms available online. (Warranty
information is available at https://www.nfortec.com/garantias and this manual is avaliable at https://www.nfortec.com/
soporte
What’s in the box
Included with your NFORTEC SCUTUM X 650/ 750/ 850 power supply are the following ítems:
• SCUTUM X Power Supply (1)
• SCUTUM QR Manual (1)
• Power Cord Cable (1)
• Installation Screws (4)
