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[SOLVED] Time on Computer running Fast

968 Views 13 Replies 3 Participants Last post by ~Candy~, May 1, 2004

vivienne

Discussion Starter · Apr 7, 2004

Hi

I have a brand new computer (bought a month ago). The clock is running fast. It has gained 7 minutes in four days!! This is according to time.nist.gov internet synchhronization. It did not just start. It has been running fast from the day I bought it.

Aida32 reports:

My motherboard is: Asus A7N8X Deluxe
CPU is: AMD Athlon XP-A, 1833 MHz (5.5 x 333) 2500+
Motherboard Chipset nVIDIA nForce2 SPP
System Memory 1024 MB (DDR SDRAM)

Would anyone know what is causing this problem or how to fix it??

Thanks!

Vivienne

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rmay635703

· #2 · Apr 7, 2004

Hmm, it sounds like someone installed too fast of a crystal for the RTC and FSB clock modulation.
(my pcchips m571 which only supported up to 83mhz fsb I modded with a different RTC crystal for the PLL to support 110mhz fsb but then the clock ran too fast but the system was blazing)

One question is your FSB slightly higher than it should be? You can check by using Aida32 or CPUCool. What I mean is if your FSB is set to say 166mhz in the bios does your chip actually run too fast?

This would indicate to me (if its real important to you) to contact Asus directly as it might be a mistake on their end or even a design flaw.

Cheers

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rmay635703

· #11 · Apr 7, 2004

Hmm, that sounds like a design flaw.

PS, the pll is not a simple user replacable part, I had to desolder mine out and attach some wires and other garbly gunk to make it work.

If the company that made the board didn't bother calibrating the timing off the RTC's into the bios or if they used cheap crystals that weren't all the same "speed" that could account for the varience.

Now my talk of crystals and PLLs is all just speak for the
little device that makes your motherboard oscillate back and forth
giving you the MHZ speed you see everywhere, (just like a pendulum clock the oscillator keeps time for your PC)
the crystal (or its digital counterpart) and PLL together produce a very specific frequency depending on how their setup. If the frequency is a little off, your timer will be off, though the system will run fine.

Like I said, if its a big deal (not having the right time) I would contact Asus. Problems like this have always existed but usually the problem was on a low end chinese system where they didn't bother to get the timing for the clock right or didn't bother getting good quality components.

As for your FSB clock from Aida, it looks right on the money, unfortunately we need to see the 1st and 2nd decimal points to detect the 7min variation in a day

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