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Thread: PDP Memory with EPProfile on ex38-ds4




  1. #1
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    Default PDP Memory with EPProfile on ex38-ds4

    Is it possible to use EPP profile of memory on Gigabyte ex38-ds4 board? I always thought that its only possible on MB with nvidia chips, so didnt bother myself with this although I own this system for almost a year now. I decided to ask after reading overclocking and BIOS tweaking Guide thread here on tweaktown:

    Memory Performance Enhance__________ [Normal]
    This setting tells the BIOS to look at your memory for the existence of an EPP
    (Enhanced Performance Profile) stored in your memories SPD chip.
    I have confirmed this works, if the memory has EPPs, and improves performance. Leave set to Normal for now.
    I didnt found such option in my bios (F6b).
    I own these: PDC22G6400LLK
    Right now my memory runs with 5-5-5-16 (400MHz, 1.8V as reported by cpuz), but EPP allows it to run 4-4-4-12@400MHZ.
    Here's CPUz report:

  2. #2
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    Performance Enhance does not necessarily look at the EPP, it usually sets RAM timings according to presets from the BIOS itself.
    If you have the newest BIOS ther might be an X.M.P. option, which is the same as EPP. X.M.P. was originally designed just for DDR3 RAM, but the msot recent BIOSes have it for DDR2 as well and it is compatible with EPP now.


  3. #3
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    OK, thanks, i will check my bios right now (I had flashed F6b late at night and didnt look at it too much).

    Edit: no Mem Performance Enhance, no XMP option in f6b bios. I guess i could manually set memory timings and volt., but I really dont want to overclock.
    Last edited by ChaosTheory; 03-14-2009 at 10:56 PM.

  4. #4
    kick's Avatar
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    i dont know your mbrd,but enter the epp settings manually should be good.
    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

  5. #5
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    But should I change volts to 2.2 (as cpuz shows: 400MHz - 4-4-4-12 - @2.2v/EPP#1)? Right now it runs at 2.1v (5-5-5-16) - that what bios says, but according to cpuz the voltage at those timings should be 1.8 ... and IS 1.8 ..., so i am a little confused here... Which is right: my bios or cpuz?

  6. #6
    kick's Avatar
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    your particular memory has 5 profiles.
    3 of them are the standard ddr2 ones
    The 2 epp ones are for best memory performance at those speeds.
    cpuz "reads" that information from the memory.
    If your motherboard doesnt detect the enhanced performance profiles,your best bet is to enter the timings yourself and up the voltage to what the epp says for "maximum performance"
    4-4-4-12 at 2.2 400/800mhz is better than 5-5-5-16.but if you can set your memory to run at the 500/1000 mhz 2.3 epp that would be even better.
    If you dont want to overclock at all leave the memory at 400mhz but do use the epp settings for 400mhz,the memory is tested for it. The 500mhz isnt really "overclocking" either as long as theres no problem on the mbrd with the memory working at 1000mhz.

    The voltage you enter in the bios isnt allways what you get at the ram.. .See in my sig where I have 2.2 v entered in bios. What I get on the ram(measured with cpuz and speedfan is 2.16/2.17.
    Last edited by kick; 03-20-2009 at 10:10 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
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    OK, I changed my mem to 4-4-4-12@2.2v and it works fine but I want to be sure I did everything right: ive changed only above timings, but left "advanced timing control" in bios intact = set on auto - its ok, I guess?
    Also I am using "extreme" setting under "Performance Enhance" - I hope it wont touch my memory voltage or something?
    Thanks for your help
    BTW, I will leave that second EPP profile for now, but I guess it will be usufull when Ill decide to overclock my CPU to 3GHz at least (ive tried but temps went up to over 70C in a minute or so of stress testing -at 1.4 v- stock cooler...)

  8. #8
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    Yes, extreme does change ram voltage and sometimes MCH voltage.

    If you would like some advice from me please list me your full settings you are using and I will advise back >>>

    This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

    Code:
    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [8] 
    Fine Clock Ratio ____________[0.5]
    CPU Host Clock Control_ [Enabled]
    CPU Host Frequency (MHz)__________ [450] 
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [2.00]
    DRAM Timing Selectable_______ SPD __ [Manual]
    
    Performance Enhance = [Standard]
    
    CAS Latency Time________________ ?
    Dram RAS# to CAS# Delay_________ ?
    Dram RAS# Precharge Delay_______?
    Precharge Delay (tRAS)__________ ?
    
    ACT to ACT Delay (tRRD)_________ ?
    Rank Write to READ Delay________ ?
    Write to Precharge Delay_________ ?
    Refresh to ACT Delay______________ ?
    Read to Precharge Delay__________ ?
    Static tRead Value_______________
    Static tRead Phase Adjust________ [Auto]
    
    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal]
    
    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.300V] 
    PCI-E OverVoltage Control_ [+0.1V] 
    FSB OverVoltage Control___ [+0.1V] 
    (G)MCH OverVoltage Control [+0.1V] 
    CPU Voltage Control_______ [1.25]
    
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect___________________[Disabled] *Note* Must be enabled to flash from USB

  9. #9
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    Here.
    Code:
    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [8] 
    Fine Clock Ratio ____________[0.5] - dont have this    
    CPU Host Clock Control_ [Disabled]
    CPU Host Frequency (MHz)__________ [333] 
    PCI Express Frequency (Mhz)_______ [Auto]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [Auto]
    DRAM Timing Selectable_______ SPD __ [Manual]
    
    Performance Enhance = [Extreme]
    
    CAS Latency Time________________4
    Dram RAS# to CAS# Delay_________4
    Dram RAS# Precharge Delay_______4
    Precharge Delay (tRAS)__________12
    
    ACT to ACT Delay (tRRD)_________ 3 [Auto]
    Rank Write to READ Delay________3 [Auto]
    Write to Precharge Delay_________6 [Auto]
    Refresh to ACT Delay______________ 42 [Auto]
    Read to Precharge Delay__________ 3 [Auto]
    Static tRead Value_______________5 [Auto]
    Static tRead Phase Adjust________ 0 [Auto]
    
    CPU/PCIEX Clock Driving Control [800mV]
    CPU Clock Skew Control [normal]
    GMCH Clock Skew Control [Normal]
    
    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.40V] 
    PCI-E OverVoltage Control_ [Normal] 
    FSB OverVoltage Control___ [Normal] 
    (G)MCH OverVoltage Control [Normal] 
    CPU Voltage Control_______ [Normal
    Loadline Calibration________[Auto]
    CPU GTLREF1 Volt Ratio________Normal
    CPU GTLREF1 Volt Ratio________Normal
    
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]-dont have
    x C4/C4E State Support..................: [Disabled]-dont have
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect___________________[enabled] *Note* Must be enabled to flash from USB
    The bios version is F6b, power supply - 500W tagan. If my above settings are ok, I would like to know what would be best settings to overclock that CPU (e6750) but with stock cooler (dont have money right now but im thinking about buying this one in future: Newegg.com - ARCTIC COOLING AC-Freezer XTREME 120mm CPU Cooler - CPU Fans & Heatsinks)
    Thanks.

  10. #10
    Lsdmeasap's Avatar
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    Default Re: PDP Memory with EPProfile on ex38-ds4

    That would be a good cooler, I am not sure how far you can get overclocking on stock cooler I have never used one myself

    I would advise you to set your ram voltage to only +0.2-0.3 (2.0-2.1V) as 2.2 is not needed and too much, and likely may be more then that unless you change Performance enhance to standard. You can look in the PC Health section of the BIOS and see what you are getting with the settings you have above right now, and you can also check with Everest Ultimate in the Motherboard/sensor tab

    Is that stable 100%? Can you post me a screenshot of this program with those settings >>
    Tweakers.fr

    Do you want advise on setting all your settings or not? Let me know, and also let me know of a CPU Speed you want to try with your stock cooler and I will advise back

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