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What is the difference between memory frequency ratios?

Discussion in 'Hardware' started by AcidicRage, Feb 8, 2004.

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  1. AcidicRage

    AcidicRage Thread Starter

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    I just downloaded the program, CPU-Z, and it shows that I have a memory frequency of 141.6MHz and FSB:DDR ratio of 3:4. I was wondering if this is good or bad? I know the memory frequency may be high because I have overclocked the FSB in the BIOS.

    Also....
    CAS# Latency is 2.5 Clocks. RAS# to CAS# Delay is 3 Clocks. RAS# Precharge is 3 Clocks & Cycle Time (Tras) is 6 Clocks. Everything look good?

    Btw, I have two sticks of Mushkin 512 PC2100 DDR.
    I think its best to match the FSB and memory, so the ratio is same and is it the lower the better on all clocks? How do I change it? I believe that when I overclocked in the BIOS, there was an option that changed my overall multiplier (P4 = o/c to 2.12ghz = 100x20, mine is now 106x20) which I think changes the MEMORY and CPU Mhz...how do I make the ratios same?
     
  2. AcidicRage

    AcidicRage Thread Starter

    Joined:
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    Any suggestions? I have an Intel I845E chipset, btw.
     
  3. AcidicRage

    AcidicRage Thread Starter

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    Ok got it. I found where the options are in my BIOS, they were in the Advanced Chipset Features. I can set all the CAS# latency stuff from 2.5 to 2.0 and all the precharge. If I do change these, it gives me a warning on the side that changing the timings and settings can cause my computer not to reboot up, in that case I have to reset/clear the CMOS. How would I go about just in case?
     
  4. Rockn

    Rockn

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    Same way you did, just change the settings back
     
  5. AcidicRage

    AcidicRage Thread Starter

    Joined:
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    OK, I managed to change the CAS# Latency from 2.5 to 2.0. It didn't hang up on me or anything ... any other timing settings I should change like the RAS#, etc while I'm still in the BIOS? I hope this would help improve my performance a tiny bit.... :)
     
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