ATTENTION
1. DO NOT open the power supply case or attempt to repair the power supply. There
are no user-serviceable parts inside. This unit contains high voltage and presents a
risk of electrocution if opened.
2. DO NOT unplug the AC power line when the power supply is in use, this may cause
damage to the components.
3. DO NOT use the power supply near water, or environments with high temperature or
high humidity.
4. DO NOT insert any objects through the fan grills or ventilation openings of the
power supply.
5. DO NOT block the fan grills or ventilation openings.
6. DO NOT modify the cables or connectors included with the power supply.
7. Only use cables provided by the manufacturer. Other cables may not be compatible
and may cause damage to the power supply and your system.
8. The power supply is designed for indoor use only.
9. Any use of the power supply outside of its intended purpose, or failure to comply
with manufacturer’s instructions or safety instructions will void all warranties and
guarantees.
Features
◊ 80 Plus Gold Certied
Ensures up to 90% power eiciency at 50% load, lowering energy consumption,
heat, and noise.
◊ Full Modular Design
Cleaner cable management, reducing clutter and improving airow.
◊ Total Protection
Protection from electrical and thermal irregularities with OVP, UVP, OCP, OPP, SCP,
and OTP.
◊ Active PFC
Ensures high eiciency power usage.
◊ Ultra Quiet 120mm Fan
Provides silent cooling for everyday use.
Package Contents
◊ G.SKILL MB850G 850W Power Supply
◊ Power Cables
◊ AC Power Cord
◊ User Manual
Cables
Installation
Please read the instructions in its entirety before proceeding with installation.
1. Make sure the I/O switch of the new PSU is at the OFF “O” position. Mount the PSU
into the computer case or chassis.
2. Connect the main 20+4pin ATX connector to the motherboard. If the motherboard
has a 20-pin socket, please detach the 4-pin connector, and then connect the 20-pin
connector to the motherboard.
3. Connect the 4+4pin CPU connector to the motherboard. Most motherboards require
only one set of 4+4pin connector; please check the motherboard user manual to see
if the second set of 4+4pin connector is required.
4. Connect the 6+2pin PCIe connector to the graphic card(s), if required by the graphic
card(s). For 6-pin sockets, please detach the two extra pins before plugging in the
connector.
5. Connect the SATA connectors to the storage drives or optical drives. (e.g. HDD, SSD,
CD/DVD drives)
6. Connect the 4pin molex peripheral connectors to legacy storage or optical drives,
fans, or other peripherals.
7. Check all connectors are rmly and securely connected.
8. Connect the AC power cord to the power supply and the wall socket. Flip the I/O
switch of the PSU to the ON “I” position.
20+4pin
8pin CPU
4+4pin CPU
6+2pin PCIe (x3)
SATA (x3)
Molex/Floppy
Connectors
1x 20+4pin
1x 8pin CPU
1x 4+4pin CPU
6x 6+2pin PCIe
9x SATA
3x 4pin Molex
1x Floppy
Specication
Input/Output Ratings
AC Input 100-240Vac, 12A, 47-63Hz
DC Output
+5V +3.3V +12V -12V +5Vsb
20A 20A 70.5A 0.3A 2.5A
110W Max 846W 3.6W 12.5W
850W
Product Name G.SKILL MB850G 850W Power Supply
Model GPX850G
Part Number GP-GD850A-CWMB1
Dimensions L 140 x W 150 x H 86mm
Eiciency 80 PLUS Gold
Protection Features OVP, UVP, OCP, OPP, SCP, OTP
Fan 120mm, Sleeved
Warranty 5 Year Limited
