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What's F2-8500CL5D-4GBPQ DDR2 1066 safe voltage?

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  • What's F2-8500CL5D-4GBPQ DDR2 1066 safe voltage?

    I have Intel C2D E8400 DFI DK P45 T2RS PLUS and F2-8500CL5D-4GBPQ DDR2 1066,however RAM is not stable those years
    Memory Timing is important,without it bios crash,high voltage is important,GTL is important
    so I set
    CPU Clock Ratio...........................9 x
    CPU Clock.................................445 MHz

    Voltage Setting Page
    CPU VID Special Add.......................+250mV
    DRAM Voltage Control......................2.290V
    CPU GTL 0/2 REF Volt......................0.63X
    CPU GTL 1/3 REF Volt......................0.61X
    North Bridge GTL REF Volt …………….0.58X

    CAS Latency Time (tCL)....................5
    RAS# to CAS# Delay (tRCD)……………..6
    RAS# Precharge (tRP)………………….6
    Precharge Delay (tRAS)....................18
    All Precharge to Act………………….7
    REF to ACT Delay (tRFC)……………….77
    pass cs:go 8 rounds,pass restart 8 rounds,and system stable.
    But I hear 2.3v will fry memory,how can I get stable system and don't fry memory?
    Last edited by cuthead; 02-09-2015, 03:52 AM.

  • #2
    More voltage is fine as long as you use the voltage. Too much unused voltage is what causes damage.
    Are you an overclocker? Have screen shots of your OC results? Please post and share your OC experience!

    The new G.Skill Overclocking Section!

    http://www.gskill.us/forum/forumdisplay.php?f=43

    Comment


    • #3
      Originally posted by GSKILL TECH View Post
      More voltage is fine as long as you use the voltage. Too much unused voltage is what causes damage.
      I think motherboard use tight parameter to maximize RAM performance,so high voltage is needed.However voltage above 2.3v is not safe and also cause unstable.Neither high voltage nor low voltage cause unstable.

      Comment


      • #4
        I find out I cannot wake up from sleep with 445x9 in yosemite,so I use
        CPU Clock Ratio...........................9 x
        CPU Clock.................................425 MHz

        Voltage Setting Page
        CPU VID Special Add.......................+300mV
        DRAM Voltage Control......................2.100V
        CPU GTL 0/2 REF Volt......................0.63X
        CPU GTL 1/3 REF Volt......................0.61X
        North Bridge GTL REF Volt …………….0.58X

        CAS Latency Time (tCL)....................5
        RAS# to CAS# Delay (tRCD)……………..6
        RAS# Precharge (tRP)………………….6
        Precharge Delay (tRAS)....................18
        wake up from sleep works
        Last edited by cuthead; 02-10-2015, 09:00 AM.

        Comment


        • #5
          Originally posted by GSKILL TECH View Post
          More voltage is fine as long as you use the voltage. Too much unused voltage is what causes damage.
          I think you are not right,here is my result:
          250mv 2.290v 63 61 58 5 6 6 18 425x9 yosemite wake up from sleep fail
          250mv 2.314v 63 61 58 5 6 6 18 425x9 yosemite wake up from sleep fail
          300mv 2.338v 63 61 58 5 6 6 18 445x9 yosemite wake up from sleep fail
          300mv 2.100v 63 61 58 5 6 6 18 425x9 pass cs:go 8 rounds geek bench 3612
          300mv 2.338v 63 61 58 5 6 6 18 425x9 pass cs:go 8 rounds geek bench 3976
          300mv 2.338v 63 61 58 5 6 6 18 435x9 boot fail
          300mv 2.338v 63 61 58 5 6 6 18 440x9 yosemite wake up from sleep fail
          300mv 2.338v 63 61 58 5 6 6 18 430x9 pass cs:go 8 rounds geek bench 4028
          300mv 2.218v 63 61 58 5 6 6 18 430x9 geekbench 3955
          300mv 2.100v 63 61 58 5 6 6 18 430x9 geekbench 4032
          high voltage don't cause high performance
          Last edited by cuthead; 02-10-2015, 08:54 PM.

          Comment


          • #6
            it's e8400 problem,got a q9650 420x9 pass orthos 10 hours

            Comment


            • #7
              Main BIOS Page
              Exist Setup Shutdown………………….Mode 2
              Shutdown after AC loss………………..Enabled
              AC Shutdown free……………………..Enabled
              O.C. Fail Retry Counter……………….1
              O.C. Fail CMOS Reload…………………Disabled
              CPU Clock Ratio………………………9 x
              CPU Clock……………………………417 MHz
              Boot Up Clock………………………..Auto
              CPU Clock Amplitude………………….. 800mV
              CPU Clock0 Skew……………………… 0ps
              CPU Clock0 Skew……………………… 0ps
              DRAM Speed…………………………..333/800
              PCIE Clock…………………………..100MHz

              CPU Spread Spectrum…………………..Disabled
              PCIE Spread Spectrum………………….Disabled

              Voltage Setting Page
              CPU VID Special Add…………………..+200mV
              DRAM Voltage Control………………….2.100V
              SB Core/CPU PLL Voltage……………….1.550V
              NB Core Voltage………………………1.1825v
              CPU VTT Voltage………………………1.24V
              VCore Droop Control…………………..Enabled
              Clockgen Voltage Control………………3.45V
              CPU GTL 0/2 REF Volt………………….0.67X
              CPU GTL 1/3 REF Volt………………….0.67X
              North Bridge GTL REF Volt …………….0.67X
              FSB Vref…………………………….Auto

              DRAM Timing Page
              Enhance Data Transmitting……………..Auto
              Enhance Addressing……………………Auto
              T2 Dispatch………………………….Auto
              Clock Setting Fine Delay………………Listed Below

              Flex Memory Mode……………………..Auto
              CAS Latency Time (tCL)………………..5
              RAS# to CAS# Delay (tRCD)……………..6
              RAS# Precharge (tRP)………………….6
              Precharge Delay (tRAS)………………..18
              All Precharge to Act………………….Auto
              REF to ACT Delay (tRFC)……………….Auto
              Performance Level…………………….Auto
              Read Delay Phase Adjust……………….Listed Below
              Write to PRE Delay (tWR)………………Auto
              Rank Write to Read (tWTR)……………..Auto
              ACT to ACT Delay (tRRD)……………….Auto
              Read to Write Delay (tRDWR)……………Auto
              Ranks Write to Write (tWRWR)…………..Auto
              Ranks Write to Read (tWRRD)……………Auto
              Read CAS# Precharge (tRTP)…………….Auto
              ALL PRE to Refresh……………………Auto

              Clock Setting Fine Delay Page
              DLL and RCOMP Settings ……………..By Menu
              Ch1 DRAM Default Skew…………………Model 0
              Ch2 DRAM Default Skew…………………Model 0
              RCOMP Setting………………………..Model 0

              Comment


              • #8
                I think DFI DK P45 T2RS PLUS auto overclock RAM by default,so default RAM Voltage is not for my RAM,I need set default RAM Voltage to 2.1v,and CPU overclock is fail,I don't know how to.

                Comment


                • #9
                  CPU +37.5mv RAM 2.147v AHCI enable 400x9 so far so good
                  get keyboard error
                  CPU +50mv RAM 2.170v AHCI enable 400x9
                  Last edited by cuthead; 04-20-2015, 09:55 PM.

                  Comment


                  • #10
                    +100mv 2.100v AHCI 400x9 stable day 1

                    Comment


                    • #11
                      +100mv 2.100v AHCI 400x9 stable day 8,Safari,Resident Evil HD remaster,Xcode,iTunes crashed.

                      Comment


                      • #12
                        +100mv 2.100v AHCI 400x9 stable day 11,Safari crashed
                        +150mv 2.100v AHCI 400x9
                        Play RESIDENT EVIL REVELATIONs 2 ending crashed whatever I tweaking.Use default without overclocking.I think I should buy DDR2 800,waste my money
                        Last edited by cuthead; 05-18-2015, 11:52 AM.

                        Comment


                        • #13
                          one week without safari crash,good.

                          Comment


                          • #14
                            without OC OS X app prohibit sign,turn off CPU CIE EIST,400x9 5 6 6 18 7 60 try to stable one week.UNSTABLE SAFARI CRASH
                            关节能 +250mv 2.1v normal normal 5 5 5 15 6 AUTO by boot to yosemite 10 AHCI 420x9 to stable for a week.Unstable yosemite crash
                            关节能 +250mv 2.1v normal normal 5 5 5 15 6 AUTO by boot to yosemite 10 AHCI 400x9 to stable for a week.
                            Last edited by cuthead; 05-31-2015, 09:23 PM.

                            Comment


                            • #15
                              DRAM ration @ 333:667,CH1/ CH2/ RCOMP Setting: 3/ 3/ 1,445x9 hope stable for a week.
                              CPU +200mv RAM 2.1v DRAM ration @ 333:667,CH1/ CH2/ RCOMP Setting: 3/ 3/ 1,450x9 hope stable for a week.boot to windows cannot find GPU,screen resolution error.
                              DRAM ration @ 333:667,CH1/ CH2/ RCOMP Setting: 5/ 5/ 1,445x9 hope stable for a week.Play PCSX2 faster.444x9 5 6 6 18 using crash.
                              Last edited by cuthead; 06-03-2015, 07:38 AM.

                              Comment

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