Monday, November 5, 2012

Understanding Real Time Clock RTC on Motherboard

RTC is also called Real time clock.Its a silver color or steel color Crystal.
Mostly cylindrical or oval shape on desktop motherboard.

RTC is required to generate frequency for the chip.If the particular chip is able to generate its own frequency then RTC is not required for that chip.

Function of RTC is similar on both Laptop and Desktop motherboard.

Also the RTC requirement is similar on desktop and Laptop motherboards.

Testing RTC is not at all difficult.
Just you need to have proper frequency testing meter.
The unit for RTC measurement is Hertz known as Hz on meter.

  • While testing RTC using frequency tester,do not connect COM ( black Probe) any where.Only red problem has to be connected RTC in and out pin.

  • Reading of frequency received on RTC  in or out most be + or -  10 of the actual frequency of RTC.

  • RTC voltage supply is 3 volts.

See below the RTC image ,basic RTC requirements for the Chips on motherboard and working of RTC

Real time clock

See below More RTC details with its description:-----
RTC frequency amplification

These details will help.


For more motherboard related troubleshooting solutions,refer the help links provided below:-----

Troubleshoot Dead Motherboard

Troubleshooting NO Display Problem on Motherboard

Troubleshooting CPU Overheating Problem on Motherboard

Desktop Motherboard Cpu Fan Connector

No SMPS Power Good on Super I/O Chip

MCH OR ICH Heating on Motherboard

Desktop Automatically Turns ON

Motherboard Immediately Restarts

MotherBoard Will Not Start With 4-Pin ATX power connected

PC Motherboard System Hangs Or Very Slow

Colors Missing On Display

USB Port not working on Motherboard

Motherboard USB Connector Pin details

PS2 Port Not Working On Motherboard

Motherboard HDD not getting Detected

Fix For BIOS Corrupt


Faulty RAM slot on Motherboard

Audio Fault on Motherboard

Ethernet LAN problem on Motherboard

Understanding Components Used On Your Motherboard

Motherboard will not Turn ON due to faulty ICH RTC

Understanding Power Trench DUAL Mosfet

Understanding SOp-8 Package Regulator

Understanding SOP-8 Package OPAM

Understanding CPU Processor Datasheet

Motherboard Starts and Immediately Shutdown

What is Chipset in Motherboard