Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Results 1 to 9 of 9

Thread: [EP45-UD3R]A fairly unusual memory performance question




  1. #1
    Join Date
    Jun 2009
    Posts
    9

    Default [EP45-UD3R]A fairly unusual memory performance question

    Greetings.

    I have a GA-EP45-UD3R, q6600 @ 3.0GHz (333x9), and 8GB (4x2) of Crucial Ballistix DDR2-800 memory. Said memory is advertised at 4-4-4-12 @ 2.0v. They work very well, at least for the few minutes before the ridiculously close DIMM slots cause them to overheat. They run stable-ish at 5-5-5-15 @ 1.75v, but are rock solid at 1.8v - so long as it's a cool day, if you catch my drift.

    Anyway, after many failed attempts at reaching a happy medium between 1.75v and 1.8v, I finally said "screw it" and dropped my 2.40B multiplier to 2.00B, giving them an effective speed of 667. This allowed me to get a synchronous clock and allowed 4-4-4-12 timings at 1.75v, running stable and VERY cool. I would imagine I can go back up to 1.8v (or maybe even ~1.85v) and give it better performance via advanced timings.

    My current settings are:

    FSB: 333MHz
    CPU Multi: 9x
    Strap: 2.00B
    VCore: 1.4v (up yours, 1.325vid)
    MCH: 1.26v
    vDIMM: 1.75v
    Timings: 4-4-4-12

    All other relevant settings, including advanced timings, are on auto.

    So, are there likely to be any settings that will give my memory a little extra push without making the MCH cranky, as it usually does with 4 sticks?

    TIA :).
    GA-EP45-UD3R
    Q6600 G0 1.325VID @ 3.2GHz
    4x2GB Crucial Ballistix 800
    Corsair VX550W PSU

  2. #2
    Join Date
    May 2010
    Location
    -
    Posts
    110

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    In my case 350 FSB was running perfectly with Mch 0.95V, Dram 2.40B 1.65V 5-5-5 4x2GB, exactly the same with E2140, E6500 and E8400, no quad. 4-4-4 never worked even with 2.1V or it demands too much MCH voltage. I keep 0.7V difference between MCh and Dram what seems to work best in my case. Adding +0.1V to Dram adds 1W power, if the same is done with Mch is 2-3Watts, it overheats more, sitting next to the memory. Perhaps you could try 4-5-4 as it usually allows for overclock?

  3. #3
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    Maybe your problem is case cooling?
    What kind of CPU heatsink and case fans are you using, and what is the ambiant temperature?

  4. #4
    Join Date
    Jun 2009
    Posts
    9

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    My case is a Cooler Master RC 690 with a complete set of 120mm fans (4 in, 3 out), so I don't think that's the issue. If I knew how to jury rig a fan to blow air around the memory modules, that might work out... that is, if it could reach the areas where the heat spreaders are not well exposed to air...

    But this is not about air flow or heat output, I've gone past that point. It's about finding the best settings possible while my 800MHz memory is running at 667MHz.
    GA-EP45-UD3R
    Q6600 G0 1.325VID @ 3.2GHz
    4x2GB Crucial Ballistix 800
    Corsair VX550W PSU

  5. #5
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    Post a screeb capture of MemSet main and spd (click spd) windows and MaxxMEM² - PreView.
    Setting lowest tRD possible (7 or 6) is likely the only thing worth doing.

  6. #6
    kick's Avatar
    kick is offline Senior Member
    Join Date
    Feb 2009
    Location
    Europe,the wild wild west.
    Posts
    1,223

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    all ddr2 memory including "value ram " is supposed to run at 1.8v
    If you get a mbrd with no ram voltage adjustment,such as one I use on my backup pc it seems to apply 1.82v.
    If your ddr2 memory overheats at 1.8v you need a fan blowing on it,
    If you have any interest in overclocking you have to be able to apply something in excess of 1.8v to your memory,
    800mhz ddr2 at 1.8v is supposed to be the maximum performance for ddr2 , anything under that on voltage is underclocking.

    performance memory ,or sticks sold as suchmearly allways require 1.9v+ to reach their rated speed.
    most ddr2 1066mhz memory seem to need 2.1v.
    I dont follow the 1.75v logic for ddr2.
    obviously if its ddr3 memory its down to 1.6v,but your board doesnt support ddr3.
    On my gigabyte board,a dram voltage entered in bios seems to work out lower in practice ,but what getting your drift do you mean.
    There is no i got to run my mem at the lowest voltage possible thing or mch will overheat.
    I use a mch direct temp sensor and the memory voltage + heat doesnt affect the mch temp much,its mainly the applied mch voltage.

    The memory works at the speed /voltage applied or it doesnt,.
    Unless you have a direct memory temp sensor ,what makes u think the memory is overheating?
    Last edited by kick; 07-30-2010 at 07:51 AM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  7. #7
    Join Date
    Jun 2009
    Posts
    9

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    Quote Originally Posted by Chike View Post
    Post a screeb capture of MemSet main and spd (click spd) windows and MaxxMEM² - PreView.
    Here you go.
    GA-EP45-UD3R
    Q6600 G0 1.325VID @ 3.2GHz
    4x2GB Crucial Ballistix 800
    Corsair VX550W PSU

  8. #8
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Location
    Tacoma, WA. [USA]
    Posts
    7,811

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    With 8gb of memory, MCH Core might need to be slightly higher (1.28 - 1.30) and memory voltage might need 2.02 - 2.04 volts to run at or near 800MHz.

    The following settings:
    OPTIMIZED bios settings already loaded
    375 x 8 = 3.0 GHz
    375 x 2.00B = 750 MHz, tRD = 6 or 7, 4-4-4-12 primary memory timings
    Performance Enhance = Standard
    will provide better system and memory performance.

    You can improve memory cooling by reversing the top case fan so that it blows air down toward the memory modules.
    I have a fabric softener dryer sheet acting as a fan filter on top of the metal case, under the top plastic bezel.

    What is the revision number of your mobo? 1.0? 1.1?
    Which bios version are you using?
    Please post your bios settings using this P45 bios template.
    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
    .


  9. #9
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: [EP45-UD3R]A fairly unusual memory performance question

    with same FSB, same primary timings, tRD 7 (Performance Level in MemSet), tRFC 36, and CPU Ratio performance are a bit better.

    DRAM Voltage was 1.8v so such low tRFC and/or tRD may not be possible with your setup.
    Last edited by Chike; 07-31-2010 at 01:57 PM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •