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Thread: Ga-ep45-ud3p + Mushkin RAM question




  1. #1
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    Default Ga-ep45-ud3p + Mushkin RAM question

    Hello everybody!

    I have a newbie question ('cause I'm a newbie).

    I'm building my first from-scratch PC for my hubby. He will be using it mainly for video editing and suchlike. Stability first, so no overclocking allowed.

    I tried to read through the stickies and my eyes went all funny and unfocussed...that stuff's way over my head. Especially the one about memory timings explained. I couldn't follow any of it.


    But, in one of the stickies, this ram is recommended
    mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996580 - Retail it's 4-4-4-12 timings at 2.0-2.1v

    Why that one over
    mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996587 - Retail with 5-4-4-12 timings at 1.8v

    I'd originally chosen the slower one at the lower voltage because of the 1.8v specification on the motherboard. Also, I'll be using four sticks, to get to 8GB of RAM.

    I'll be getting the GA-EP45-UD3P motherboard.

    Keeping in mind my newbie-ness, and the fact that I won't be attempting to overclock anything on the machine, which RAM should I get? Is the 4-4-4-12 that much better than the 5-4-4-12? Since I'll be running 8GB, will it matter that much? Will having more RAM mean I should be using lower voltages (assuming that results in less heat?)?

    I haven't listed my full (planned) specs because right now I'm more concerned about making sure my RAM will work.

    I appreciate any and all education - assuming I can understand it!
    Thank you!
    Linda

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Ga-ep45-ud3p + Mushkin RAM question

    Those black sticks are a MUCH better quality is why you likely saw them suggested. Both would work fine for your board though. They will both start at 1.8V and if you do want the better ones you can just adjust the voltage in the BIOS to 2.0 (2.1 is not usually needed and since you are not overclocking likely wont be for you)

    To use 8GB of ram you will need to put in one set and make some adjustments in the BIOS for sure.

    I would suggest you get the black ones for their quality and the price is now so cheap! I paid 125 for one set and 89 for another! Now they are almost as cheap as the Blue models due to the new eVCI models they have out.

    No, and you may need to use 2.0-2.1 since you plan to use 8 sticks. You will need to change several things in the BIOS to get 8GB stable. Those would be these ones Mainly >>>

    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<<
    PCI Express Clock Drive.................: <<<
    CPU Clock Skew (ps)....................: <<<
    MCH Clock Skew (ps)...................: <<< 50-250


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.40B <<< If you are using a 1333 FSB CPU
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................4 << 5 if you get the blue ones
    tRCD .........................................4
    tRP'...........................................4
    tRAS..........................................12

    Advanced Timing Control
    tRRD...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................58-80 << High value is needed here for 8GB, you will have to find what works best. Set high first and then lower testing with Memtest86+ as you go >>>
    Memtest86+ - Advanced Memory Diagnostic Tool

    tRTP...........................................
    Command Rate (CMD) ....................:2

    Driving Strength Profiles
    Driving Strength ............................800-1066 (1066 will be best normally)

    Channel A
    Static tRead Value.........................:7-10
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    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.........................:7-10
    tRD Phase0 Adjustment...................:<<< Leave for all below as well
    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


    MCH/ICH
    MCH Core…………….....1.100V...........: << 1.24-1.35 << Will be needed for 8GB
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave

    DRAM
    DRAM Voltage ……....1.800V............: 2.0-2.1
    DRAM Termination .…0.900V............: <<< Leave
    Channel A Reference 0.900V............: <<< Leave
    Channel B Reference 0.900V............: <<< Leave

    Once you get built and tell me your CPU I can better advise you for more settings as well. All the blank settings I can also help you with later if you want/need. Auto may work for all timings but may not with 8GB and for sure wont perform the best. Voltages though will need to be manually set

  3. #3
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    Default Re: Ga-ep45-ud3p + Mushkin RAM question

    Thank you so much!
    I hope to have all my parts in about 3-4 weeks, so I'll certainly be back here for help then.

    Wow, that's a lot of information...lots to study and learn about, thanks again!

    Linda :)

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Ga-ep45-ud3p + Mushkin RAM question

    Anytime!

    Ya, If you need help with anything We are here to help for sure! So if you get stuck, dont worry we will help you!

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