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Thread: RAM Timings




  1. #1
    Join Date
    Feb 2009
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    Default RAM Timings

    Hi,
    My FSB has been pushed up to 450MHz so my 800MHz DDR2 is now running at 900MHz.
    The PC is as stable as it was at normal clock speeds, the current RAM timings are 5-5-5-18.
    For increased performance would it be better trying to hit a higher CPU speed or tighten the timings up?
    I don't know how fast the RAM should really be pushed to?
    Gigabyte GA-EP45-UD3LR
    E6320 @ 3.15GHz
    Zotac 8800 Amp edition@700/2000
    Thermal take purepower 680W
    Arctic Cooling AC-FRZ-7P Freezer 7 Pro Rev2
    Corsair 4GB Kit (2x2GB) DDR2 800MHz

  2. #2
    Join Date
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    Default Re: RAM Timings

    -(I've been told that some memory can do 900MHz @1.95-2.2VDRAM, CL5-5-5-15-PL9, which could get tighter with the right voltages)-

    I would first tighten the timings up to find the tightest stable settings @ 800MHz. Then save that config to BIOS after P95:Blend and Small/FFT have both not failed 8 hours of testing, 24 hours if you want to be totally sure. After which, I would then increase my CPU FSB and again find the best memory timings for that freq.

    I'm sure someone around here has a method of using 'Super Pi' to help tighten memory timings, this would include the adjusting of voltages too!

    I'm still a newb at overclocking so I'm doing "lots" of test to get the feel and understanding of overclocking.

    "TweakTown has proven to have some very resourceful and knowledgeable people giving support, have patience and do lots of reading while waiting for others to help!"
    Last edited by Marker; 03-19-2010 at 03:35 AM.

  3. #3
    Join Date
    Feb 2009
    Posts
    27

    Default Re: RAM Timings

    Anyone know what best timings are?
    What would I uses the test the RAM in a o/c type of way?
    Gigabyte GA-EP45-UD3LR
    E6320 @ 3.15GHz
    Zotac 8800 Amp edition@700/2000
    Thermal take purepower 680W
    Arctic Cooling AC-FRZ-7P Freezer 7 Pro Rev2
    Corsair 4GB Kit (2x2GB) DDR2 800MHz

  4. #4
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: RAM Timings

    Post a screen-shot using cpu-z or Memset SPD panel to show the pre-programmed guaranteed settings for your memory.
    It will also help if you post a link to the full specifications for your model of Corsair memory (pdf file or manufacturer's web page).
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: RAM Timings

    Use Memtest86+ and HCI Memtest x3-4 in windows, you can get both here
    http://forums.tweaktown.com/f69/late...y-tools-30530/

    As for timings, those are likely the best that ram can do at 900Mhz and safer voltages. You may be able to use 555-12 or 555-15, depending on your MCH Voltage and the strap and tRD you are using

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