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Help with GA-EP45_UD3R with 4x2GB F2-8000CL5D-4GBPQ

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  • Help with GA-EP45_UD3R with 4x2GB F2-8000CL5D-4GBPQ

    I finally got all four sticks running together, i had to set the MCH/northbridge to 1.34, which is kind of high. I have the memory set to 5-5-5-15 2T with the rest of the settings at auto. I had to run the memory multiplier at 2.5a which is suggested for 266/1066FSB to get the memory to 1000. The FSB is set to 400 and cpu multiplier is set to 9.5, running the cpu at 3.8 GHZ (E8500 cpu). The dram is set to 2.1.

    If I set the memory multiplier to 2.66d which is meant for the 400/1600 fsb(options of 2.00d, 2.66d and 3.33d) it will overclock the memory to 1066, which fails prime95 and of course gskill does not confirm that this memory will work over its rated speed, wish I would have picked up the 8500 series. This memory seems extremely picky, i've only got it stable at the previous paragraph settings with memory at 1000.

    What I am asking is, should I set the multipliers according to the correct multiplier based on the FSB (2.00d, 2.66d or 3.33d) which would mean either overclocking with an unstable build or underclocking the memory, loosing the memory potential. I am also asking if there are any additional settings beyond the basic 5-5-5-15 2t that is suggested?

    Here are the options I have in the bios:

    *_DRAM Performance Control_*
    *Performance Enhance...................: [STANDARD]*
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.5a
    Memory Frequency (Mhz) ..............: 1000
    DRAM Timing Selectable ................: [Manual]

    *Standard Timing Control*
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................15

    *_Advanced Timing Control_*
    tRRD........................................... auto
    tWTR.......................................... auto
    tWR............................................ auto
    tRFC........................................... auto
    tRTP........................................... auto
    Command Rate (CMD) ....................:2

    _*Driving Strength Profiles*_
    Driving Strength ............................

    *Channel A*
    Static tRead Value.........................: Auto
    tRD Phase0 Adjustment...................:Auto
    tRD Phase1 Adjustment...................:Auto
    tRD Phase2 Adjustment .................:Auto
    tRD Phase3 Adjustment..................:Auto
    Trd2rd(Different Rank)....................:Auto
    Twr2wr(Different Rank)...................:Auto
    Twr2rd(Different Rank)...................:Auto
    Trd2wr(Same/Diff Rank)..................:Auto
    Dimm1 Clock Skew Control...............:Auto ps
    Dimm2 Clock Skew Control...............:Auto ps

    *Channel B*
    Static tRead Value.........................: Auto
    tRD Phase0 Adjustment...................:Auto
    tRD Phase1 Adjustment...................:Auto
    tRD Phase2 Adjustment .................:Auto
    tRD Phase3 Adjustment..................:Auto
    Trd2rd(Different Rank)....................:Auto
    Twr2wr(Different Rank)...................:Auto
    Twr2rd(Different Rank)...................:Auto
    Trd2wr(Same/Diff Rank)..................:Auto
    Dimm1 Clock Skew Control...............:Auto ps
    Dimm2 Clock Skew Control...............:Auto ps


    Help would be apreciated.
    Last edited by tonyjanderson1; 01-13-2009, 10:49 AM.

  • #2
    it is not necessary to set it the same as the FSB
    different options only mean different ratio
    it would not affect performance
    thanks


    G.S

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