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Thread: P35C-DS3R Memory Voltages?




  1. #61
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    Default Re: P35C-DS3R Memory Voltages?

    Quote Originally Posted by Lsdmeasap View Post
    Normal likely gives you 2.2V because that is what your ram's SPD is programmed for

    Normal should be 1.8 for 1.8 rated ram or any ram without a EPP programmed into it. And of course other settings left in Auto or default will affect this

    I advise 2.0-2.1 for your 2.2 rated ram
    Yeah, I read this just now GA-P35C-DS3R Memory & OCing problems!!! - TweakTown Forums And am starting to understand how it all works. I had no idea that the voltages was automatically raised when I use Performance: turbo or extreme...so I'll just wait until I get my RAM back I got email form Crucial today that the RAM has arrived ,so in a couple of days i should have the new.

  2. #62
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    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: P35C-DS3R Memory Voltages?

    Quote Originally Posted by Lsdmeasap View Post
    Your new ram should be 2.0V so it should be that in auto
    If I have everything default, like performance: standard and timing set to auto and such right?

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    Default Re: P35C-DS3R Memory Voltages?

    Ya, as the new Crucials are 2.0 with 800 and 1000 EPP Profiles, but it may default to 1.8 as well >>>


  5. #65
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    Default Re: P35C-DS3R Memory Voltages?

    @ Blakkat,

    I want to register that my GA-P35C-DS3R was only able to read EPP profiles voltage settings when adjusted to work with "Performance Enhance = [Extreme]" and "DDR2 Overvoltage Control = [Normal]"

    When I use [Standart] or [Turbo] settings on "Performance Enhance" the DDR2 voltages are automaticaly configured by MOBO to:

    >>> 2.384v using anything above 1000Mhz on the "System Memory Multiplier (SPD)"

    >>> 1.984v using anything below 1000Mhz.

    Nor of these two voltages (2.384v and 1.984v) could be found on any EPP or JEDEC's memory profiles that I'm using.

    JEDEC #1
    Frequency ........ [266 Mhz]
    CAS# Latency ... [4.0]
    RAS# to CAS# ... [4]
    RAS# Precharge . [4]
    tRAS ................ [12]
    tRC .................. [16]
    Command Rate ... [ ]
    Voltage ............. [1.8 V]

    JEDEC #2
    Frequency ........ [400 Mhz]
    CAS# Latency ... [5.0]
    RAS# to CAS# ... [5]
    RAS# Precharge . [5]
    tRAS ................ [18]
    tRC .................. [23]
    Command Rate ... [ ]
    Voltage ............. [1.8 V]

    EPP #1
    Frequency ........ [533 Mhz]
    CAS# Latency ... [5.0]
    RAS# to CAS# ... [5]
    RAS# Precharge . [4]
    tRAS ................ [12]
    tRC .................. [ ]
    Command Rate ... [2T]
    Voltage ............. [2.250 V]




    I'm still doing some tests but I guessed would be useful giving you my tests results.

    Regards.

    Marco.

    ________________________________________
    GA-P35C-DS3R rev2.0 F11 BIOS - Intel E8500 rev.C0 - 2 sets Mushkin XP28500 Enhanced 996535 (5-5-4-12; 1066mhz; 2,25v - 4x1Gb) - OCZ Gamestealth 650W - OCZ XTC Cooler - Zalman CNPS 7000cu - EVGA Nvidia 8800GTS 640mb - SoundBlaster X-Fi Platinum - 3 Seagate ST3500320AS 500 Gb - 2 Samsung SP2504C 250Gb - SATA Pionner DVD-RW 215-D

    Windows XP Pro x32 - Windows Vista Home Premium x32 & Windows Vista Home Premium x64</o:lock></v:shapetype>[/FONT]
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    Last edited by marco_ar; 11-19-2008 at 02:34 AM. Reason: Table of JEDEC and EPP profile

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    Default Re: P35C-DS3R Memory Voltages?

    Quote Originally Posted by marco_ar View Post
    @ Blakkat,

    I want to register that my GA-P35C-DS3R was only able to read EPP profiles voltage settings when adjusted to work with "Performance Enhance = [Extreme]" and "DDR2 Overvoltage Control = [Normal]"

    When I use [Standart] or [Turbo] settings on "Performance Enhance" the DDR2 voltages are automaticaly configured by MOBO to:

    >>> 2.384v using anything above 1000Mhz on the "System Memory Multiplier (SPD)"

    >>> 1.984v using anything below 1000Mhz.

    Nor of these two voltages (2.384v and 1.984v) could be found on any EPP or JEDEC's memory profiles that I'm using.

    JEDEC #1
    Frequency ........ [266 Mhz]
    CAS# Latency ... [4.0]
    RAS# to CAS# ... [4]
    RAS# Precharge . [4]
    tRAS ................ [12]
    tRC .................. [16]
    Command Rate ... [ ]
    Voltage ............. [1.8 V]

    JEDEC #2
    Frequency ........ [400 Mhz]
    CAS# Latency ... [5.0]
    RAS# to CAS# ... [5]
    RAS# Precharge . [5]
    tRAS ................ [18]
    tRC .................. [23]
    Command Rate ... [ ]
    Voltage ............. [1.8 V]

    EPP #1
    Frequency ........ [533 Mhz]
    CAS# Latency ... [5.0]
    RAS# to CAS# ... [5]
    RAS# Precharge . [4]
    tRAS ................ [12]
    tRC .................. [ ]
    Command Rate ... [2T]
    Voltage ............. [2.250 V]




    I'm still doing some tests but I guessed would be useful giving you my tests results.

    Regards.

    Marco.

    ________________________________________
    GA-P35C-DS3R rev2.0 F11 BIOS - Intel E8500 rev.C0 - 2 sets Mushkin XP28500 Enhanced 996535 (5-5-4-12; 1066mhz; 2,25v - 4x1Gb) - OCZ Gamestealth 650W - OCZ XTC Cooler - Zalman CNPS 7000cu - EVGA Nvidia 8800GTS 640mb - SoundBlaster X-Fi Platinum - 3 Seagate ST3500320AS 500 Gb - 2 Samsung SP2504C 250Gb - SATA Pionner DVD-RW 215-D

    Windows XP Pro x32 - Windows Vista Home Premium x32 & Windows Vista Home Premium x64[/font]
    [/font]
    Hmm, I'm having a hard time to understand what you mean? sorry

    This works for me.

    Performance Profile: Extreme
    Voltages +2V =2.0-2.19V
    (G)MCH +2V
    Crucial DDR2 BallistiX @1000MHz, can't go any higher then that at the moment but, LSD is trying to help me with that thue.
    Last edited by Blackkatt; 11-30-2008 at 02:44 AM.

  7. #67
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    Default Re: P35C-DS3R Memory Voltages?

    Hi Blackkat,

    I meant mine GA-P35C-DS3R raises DDR2 voltage to 2.384v only if I set sticks to run above 1000Mhz. Anything lower then 1000mhz the DDR2 voltage is setted to 1.984 by BIOS.

    So, not only "Performance Enhanced" changes voltages. Others settings will do it too. And, BIOS disregards "EPP's" and "JEDEC's" voltage / timing profiles

    Best regards.

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