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PC losing time

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7 replies

by smokin_grandma2000

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If I leave my PC on for any length of time, the clock starts slowing down. I lose anywhere up to 30 minutes in a 12 hour period. This makes it very difficult to navigate unless I reboot immediately. Help????????

7 replies

by dmiles

This could be caused by the CMOS battery going bad,to which you can replace by opening the case,look for a nickel plated nickel size object near the CPU on motherboard,be careful when removing to no damage the lever that holds the battery in place,replace with another battery of same voltage.
You can get the battery at retail computer store or radio shack.

by techkid

More than likely it's a bad Real Time Clock on the mobo. If the battery were going bad you'd lose all your CMOS settings. But try the battery first cuz if it's the RTC you need a new mobo

by thechas

I have seen reports of a bug in some Dell computers that causes the clock to run slow when the PC is on.

This may also happen with some AMD processor based motherboards with the BIOS set to auto-detect the CPU speed.

With some combinations of AMD processors, and motherboards, the CPU clock speed is set wrong. Sometimes to only 1/2 of rated speed.
However, the BIOS thinks that the speed is set correctly, and numerous errors can occour.

To check this, you need to enter the BIOS setup program at boot.
The FSB * the Multiplier must equal the CPU speed.
Depending on the motherboard, the FSB will be either 100MHZ, or 200MHz.
For a 1GHz CPU, the multiplier needs to be either 10x or 5x respectively.

Chas

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