G.SKILL MB650B - User Manual

MB650B
650W Power Supply
User Manual
Copyright © 2020 G.SKILL International Enterprise Co., Ltd.
All rights reserved. G.SKILL logo is a registered trademark in the United States and/or other countries.
All other trademarks are the property of their respective owners.
MB650B-20-1021-1
Troubleshooting
1. Please make sure the power supply is oriented correctly such that the cooling fan is
not blocked. If the case or chassis does not have air vents at the bottom, then orient
the power supply so that the fan intakes air from inside the case.
2. It is vital that the correct end of the power cables are connected to the correct port
or device. The connector ends are not interchangeable. The connectors are keyed to
assist you to connect it to the correct port. Do not force connectors into the ports.
3. Please make sure that the power supply provides more than suicient power for all
of your hardware components. Do not use the power supply beyond its maximum
power output.
4. If the system does not power on, please check the following:
• Check to see if the I/O switch on the rear of the power supply is ipped to the ON
position (marked by the “I” symbol)
• Check and make sure the AC power cord is securely connected to the PSU and
the wall socket. If the AC power cord is connected to an extension cord or power
strip, please try connecting it directly to the wall socket.
• Check and make sure both ends of all power cables are securely connected to
the PSU and each component.
• Try to completely discharge the power supply. To do so, unplug the AC power
cord from the power supply, and then press and hold the power button on the
case or motherboard for ten seconds or until all LED indicator lights on the
motherboard is o. Reconnect the AC power cord to the power supply and power
on the system again.
Technical Support & RMA
For technical support, please ll out the contact form at:
www.ipsgproducts.com/contact/contact.phtml.
For RMA requests, please contact the original place of purchase by email or phone.

Summary

Troubleshooting Power Supply Issues

Verify Power Supply Orientation and Airflow

Ensure the cooling fan is not blocked and orient the PSU for proper airflow, especially if the case lacks bottom vents.

Check Power Cable Connections

Ensure correct cable ends are connected to the PSU and devices, and do not force connectors.

Confirm Sufficient Power Output

Ensure the PSU provides adequate power for all components and is not used beyond its maximum output.

System Power-On Checks

Verify PSU I/O switch, AC power cord connections, and discharge the PSU if the system does not power on.

Technical Support and RMA Information

Important Safety Precautions

Handling and Usage Warnings

Do not open, repair, use near water, insert objects, or modify the power supply or its cables.

Warranty and Intended Use

Use only manufacturer-provided cables and for indoor use to avoid voiding warranties.

Key Features and Package Contents

Product Features Overview

Highlights 80 Plus Bronze efficiency, semi-modular design, power protections, active PFC, and quiet fan.

Included Package Items

Lists the power supply unit, power cables, AC power cord, and user manual.

Cable Identification and Specifications

Power Supply Cable Connectors

Diagram showing PSU connectors: 20+4pin, 8pin CPU, 4+4pin CPU, 6+2pin PCIe.

Included Cable Types

Details of included cables: 20+4pin ATX, 8pin CPU, 4+4pin CPU, 6+2pin PCIe, SATA, Molex, Floppy.

Technical Specifications Summary

Lists AC input, DC output ratings, product name, model, dimensions, efficiency, protections, fan, and warranty.

Installation Guide

PSU Mounting and Initial Setup

Ensure PSU I/O switch is OFF, mount PSU, and connect main ATX and CPU connectors.

Peripheral and Power Connections

Connect PCIe, SATA, and Molex connectors securely, then connect the AC power cord and turn PSU ON.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

This document describes the G.SKILL MB650B 650W Power Supply, a semi-modular power supply unit (PSU) designed for use in computer systems. Its primary function is to convert alternating current (AC) from a wall socket into direct current (DC) to power various computer components.

Function Description

The MB650B is a 650W power supply, indicating its maximum continuous power output. It features an 80 Plus Bronze certification, which means it achieves up to 85% power efficiency at 50% load. This efficiency helps to reduce energy consumption, minimize heat generation within the system, and lower operational noise. The unit incorporates Active Power Factor Correction (PFC) to ensure high efficiency in power usage.

The power supply is equipped with a variety of connectors to interface with different computer components. These include:

• One 20+4pin ATX connector for the motherboard.
• One 8pin CPU connector and one 4+4pin CPU connector for the CPU.
• Two 6+2pin PCIe connectors for graphics cards.
• Five SATA connectors for storage drives (HDDs, SSDs) and optical drives (CD/DVD drives).
• Two 4pin Molex peripheral connectors for legacy storage, optical drives, fans, or other peripherals.
• One Floppy connector.

The semi-modular design allows users to connect only the necessary cables, which helps in managing cable clutter within the computer case and improving airflow.

Usage Features

The MB650B is designed for indoor use only. Installation involves mounting the PSU into the computer case or chassis and connecting the appropriate cables to the motherboard, CPU, graphics card(s), and other peripherals. Before installation, users must ensure the PSU's I/O switch is in the OFF "O" position. After all connections are made firmly and securely, the AC power cord is connected to the power supply and a wall socket, and the I/O switch is flipped to the ON "I" position to power on the system.

The power supply includes several protection features to safeguard against electrical and thermal irregularities. These include:

• Over Voltage Protection (OVP): Protects components from excessive voltage.
• Over Power Protection (OPP): Prevents damage if the total power draw exceeds the PSU's maximum output.
• Short Circuit Protection (SCP): Safeguards against damage from short circuits.
• Over Temperature Protection (OTP): Shuts down the PSU if it overheats.

A 120mm sleeved fan is integrated into the unit to provide silent cooling during everyday use, contributing to a quieter computing environment.

Maintenance Features

The G.SKILL MB650B is designed to be a sealed unit with no user-serviceable parts inside. Users are explicitly warned not to open the power supply case or attempt to repair it, as it contains high voltage and poses a risk of electrocution. Opening the unit will also void all warranties and guarantees.

For troubleshooting purposes, the manual provides several checks if the system fails to power on:

1. Power Supply Orientation: Ensure the power supply is oriented correctly so its cooling fan is not blocked. If the case lacks bottom vents, orient the PSU to intake air from inside the case.
2. Cable Connections: Verify that the correct ends of the power cables are connected to the correct ports or devices. Connectors are keyed to prevent incorrect insertion, and force should not be used. All power cables must be securely connected to both the PSU and each component.
3. Power Output: Confirm that the power supply provides sufficient power for all hardware components and is not used beyond its maximum power output.
4. I/O Switch: Check if the I/O switch on the rear of the power supply is flipped to the ON position (marked by the "I" symbol).
5. AC Power Cord: Ensure the AC power cord is securely connected to both the PSU and the wall socket. If an extension cord or power strip is used, try connecting the cord directly to the wall socket.
6. System Discharge: If the system still doesn't power on, users can try completely discharging the power supply. This involves unplugging the AC power cord from the PSU, then pressing and holding the computer case or motherboard power button for ten seconds (or until all LED indicator lights on the motherboard are off). After discharging, reconnect the AC power cord and attempt to power on the system again.

The manual also emphasizes several preventative measures:

• Do not unplug the AC power line while the power supply is in use, as this can damage components.
• Avoid using the power supply near water or in high-temperature/high-humidity environments.
• Do not insert objects through the fan grills or ventilation openings.
• Do not block the fan grills or ventilation openings.
• Do not modify the cables or connectors provided with the power supply. Only use manufacturer-provided cables, as incompatible cables can cause damage.

For technical support, users are directed to fill out a contact form on the G.SKILL website. For RMA requests, users should contact the original place of purchase via email or phone.

G.SKILL MB650B Specifications

General

Model	MB650B
Type	ATX 12V v2.4
Maximum Power	650W
Efficiency	80 Plus Bronze
Over Voltage Protection	Yes
MTBF	100, 000 Hours
SATA Connectors	6
Modular	No
Output	+3.3V@20A, +5V@20A, +12V@54A, -12V@0.3A, +5VSB@2.5A
Fans	120mm Fan
Input Voltage	100-240V
ATX Connector	1
PCIe Connectors	2
Input Current	10A
Protections	OVP, UVP, OPP, SCP