0
A 4-pin fan header is a PWM (pulse-width modulation) fan header. As opposed to a traditional 3-pin, a 4-pin is more sophisticated in the way it controls fan speed. The 3-pin fans use DC (power) control. Unfortunately if you have a fan that has LED lighting with a 3-pin header the lights will dim with along with the decrease in fan speed, and vice versa. The fourth pin allows digital (PWM) control without having to power down or power up the entire fan itself.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
When installing a CPU in a zip socket how should a technician align pin to avoid damage?
Pin 1 on the CPU is aligned with Pin 1 on the ZIF socket.
What is a USB header?
A USB header is a group of pins, typically on a computer motherboard or expansion card, to which an internal USB cable can be attached to provide extra USB ports. Typically, one header is a group of two USB ports. The most common USB header layout is: 5v, D-, D+, Gnd, NC 5v, D-, D+, Gnd, Key Some may be in reverse order, or completely different, so caution is advised. Manufacturers generally design USB headers on to their motherboards if they have extra USB ports left over from the design of the rear I/O. Instead of terminating these extra USB ports, they can be left as USB headers to be used by some other means. Many computer cases feature "Front USB Ports". These front USB ports connect to the USB headers on the motherboard. This is the most common use for USB headers. Words of Cauton: - There are several varieties of header pin layouts ranging from 4 pin, to 10 pin, The most common ones are 5 pin for single USB header, to 9 pin for dual USB, where pin 9 and 10 are not used. Pin 9 and blank pin 10 are to ensure the plug is inserted correctly. Some 9 pin header plugs have different places where the blank pin is and also a different wiring order. You must have the right wiring order and plug for your device, and to your motherboard, or you may do some serious damage to your PC and/or USB devices. It is wise to always double check the pins and wiring via a PC Tech before buying and installing any internal after market USB device.
Show a diagram of a super computer?
These are 2 diagrams from the x58 super computer manual Diagram in - onboard headers and connectors section. Pin 1 - +5v Pin 2 - Empty gap Pin 3 - Spdif out Pin 4 - Ground Diagram in - pin header easy instalation guide. Pin 1 - +5v Pin 2 - Spdif Pin 3 - Empty slot Pin 4 - Ground These diagrams are confusing as it is not clear witch diagram is correct. Witch two connectors are required for it th work. I can only connect the spdif cable to two of these, with the cable ive got. Do i need a new cable to fit all three pins. or can i fit it to two of them to get it work. If i need to connect it to two of them can you tell me what i need to do next to get the sound working properly. Thanks War994. SYSTEM: Vista 64 bit ultra. CPU I7 920 CPU COOLER: THERMALRIGHT ULTRA 120 EXTREME + 120MM FAN. PSU: THERMALTAKE 1500W MOTHERBOARD: ASROCK X58 SUPERCOMPUTER MEMORY: CORSAIR DOMINATOR 6GB DDR3 1600MHZ SOLID STATE HARD DRIVE: OCZ CORE SERIES V2 60GB AS BOOT DRIVE. HARD DRIVE: 300GB WD VELOCIERAPTOR. GPU: NVIDIA 9800X2. CD/DVD/BLURAY DRIVE.
What processors are compatible with a lenovo b575?
The Lenovo b575 is a ball grid array CPU and cannot be upgraded to a higher one. Only a pin grid array CPU can be upgraded to a higher processor.
What is the significiance of the triangle on one corner of the CPU?
It has a white Triangle The previous answer is quite useless. The triangle marks where pin 1 is on the CPU. When installing a CPU into the socket, the installer lines up the triangles so the CPU fits correctly into the socket.
How many pins does the CPU fan header on a motherboard hve?
Legacy CPU fans used a 3-pin header. Anything in the past few generations and current use a 4-pin straight configuration now-- The majority of 3 pin fans work on most 4-pin plugs, but I don't know if the inverse is true.
What is the difference between a pwm transmission and a non pwm transmission?
4 pin header = ability to use PWM fan = automatically adjust fan speed based on whatever variable (typically temperature) 3 pin header = full speed by default non-PWN fan = can control by means of software or fan controller
What is the purpose of the 4-pin auxiliary connector on the motherboard?
provide more power for the CPU
When installing a CPU in a zip socket how should a technician align pin to avoid damage?
Pin 1 on the CPU is aligned with Pin 1 on the ZIF socket.
What will happen if there is no CPU fan in the motherboard?
The CPU will overheat (safety shutdown usually happens at around 69 degrees C), and you will be unable to use the computer for prolonged periods unless it is running with less than 50% CPU usage in a very cool environment. Side effects of constant CPU overheat can include the capacitors blowing on the motherboard if they are near the CPU heatsink.
What type of power connector does the heat sink or fan assembly usually have?
Typically a 2, or 3 pin 'fan' connector, or a 4-pin 'molex' connector. The 2-pin (positive/negative) and 3-pin (positive/negative/RPM) are most common, but older or cheaper fans, especially those not used on the CPU heatsink, may use a 4-pin 'Molex' connector. Other connectors may be used, including proprietary connectors, in the case of some motherboards, CPUs, and cases. This is common in videocards, which may need 2/3 pin, 4-pin molex, 4-pin PCI-E, 6-pin PCI-E, or 8-pin PCI-E connectors, or a combination thereof!
What pin on the plug to the AC outlet is the ground pin and what is its purpose?
The ground pin or earth pin is the uppermost pin on your plug. It's purpose is to provide a safety barrier between you and the supply in the event of an overload or in case of an accident.
What is Ashley Tisdale's blackberry pin?
Ashley has 2 blackberry's. One for her friends and family and one for her fan's! Her fan Blackberry pin is 2075DE52.
Can a fan with a four pin molex connector connect to a 3 pin connector on the motherboard safely?
Yes, but it loses its fan speed control.
Which are ways to connect a CPU to a socket?
Land grid array and Pin grid array
How are the vehicle doors removed from the end-panel frame?
first remove the hinge pin from the top of the door header
What power connector standard incorporated a separate 4-pin plug to supply power to the CPU?
I know it as a P4 power connector. it works for many CPU's.
