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Thread: What amateur OC is this?




  1. #11
    kick's Avatar
    kick is offline Senior Member
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    Default Re: What amateur OC is this?

    Quote Originally Posted by Outer Marker View Post
    Okay, so I've got an E8400 E0 stable at 3.6GHz with 2x2GB 1066 GSkill RAM. All stock volatges too!

    The problem is, I want to do 3.8 and call it a day. I'm trying with 423 FSB and a 9 clock multiplier. Since I'm running 1066 RAM, I've got some potential things to consider with regard to the FSB:DRAM ratio. Here's what I know so far...

    Since I'm using 423 MHz, you would think I need to be on the 400 D Strap, but I can't boot at 2.0D or 2.66D. Perhaps I need to bring memory voltage down to work on this strap? Perhaps 1.8V when running the RAM at 846 as would be the case with 2.0D?

    Then I tried the tighter 333 Strap at 2.40B. Looking pretty good! Actually had to lower the MCH core voltage to 1.1V for stability, and can get 3 hours out of ORTHOS before fail. I'm at 1.2750V VCore. I guess I need to go higher?

    My question is why on earth does this run better with tighter timings on the 333 Strap when I can't even get a boot on the looser 400 Strap? Is this normal? From what I've read here, I need to be on that 400 strap to stand a chance of a stable OC at this FSB.
    Ive mentioned a couple of times that D multipliers dont work for me ,theres another E8400 poster on this page ,for now at least,that cant get them to work either.
    Im going on the "multipliers for your base stock frequency work ,above that ..who knows" principle.They do for me anyway. 333mhz, the B multipliers will give (for me at least) 500mhz fsb stable at either standard performance(loose timings) or Turbo performance (much tighter timings).
    Running 5-5-5-15 the turbo timings at 1000mhz seem to equate to the standard timings I get using 5-5-5-15 at 800mhz at 2.0v.
    For 490mhz (980) mem i need 2.08v set in bios .
    For 1000mhz I need much more proportionately,than all the way to 490 from 400..
    Around 490-500, i need cpu 1.39375 or 1.4 v.mch 1.36-1.4v.
    520 fsb wont run stable.maybe it would with big voltage increases and on standard memory timing.but 500 seems a nice number to hold on.
    My memory wont work much above 1015mhz on this board or possibly just on 45 chipsets.
    Im probably repeating a lot of my posts at this stage,but hey scan thru the forum here for your specific mbrd and cpu/mem setup.
    Or even scan thru the posts of Kick..should be some screenies back there somewhere.
    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

  2. #12
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    Default Re: What amateur OC is this?

    Thanks for re-posting your findings, kick, that's very helpful. I'm intrigued about trying out the "turbo" option now that I have a stable OC at 3.8GHz. Perhaps I could even go back to my old 3.6GHz OC and see what turbo does for me there. Posted below are my current settings for 3.8GHz. I am stable at this point but need to tighten the memory timings if I can. any suggestion there, or should I just give the turbo settings a try?

    Code:
     
    Robust Graphics Booster ...............: [Auto]
    CPU Clock Ratio .......................: [   9]
    Fine CPU Clock Ratio...................:  +0.0
    CPU Frequency .........................: 3.81GHz
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control.................: [Enabled] 
    CPU Host Frequency (Mhz) ..............:  424Mhz
    PCI Express Frequency (Mhz) ...........:  100
    C.I.A.2 ...............................: [Disabled]
    Advanced Clock Control [Press Enter]
    CPU Clock Drive........................: 800mV
    PCI Express Clock Drive................: 900mV
    CPU Clock Skew (ps)....................:   0ps
    MCH Clock Skew (ps)....................:   0ps
    DRAM Performance Control
    Performance Enhance....................: [STANDARD]
    Extreme Memory Profile (X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch.................:  Auto
    System Memory Multiplier ..............:  2.40B 
    Memory Frequency (Mhz) ................:  1018
    DRAM Timing Selectable ................: [Manual]
    Standard Timing Control
    CAS Latency Time.......................: 5
    tRCD ..................................: 5
    tRP'...................................: 5
    tRAS...................................: 15
    Advanced Timing Control
    tRRD...................................: 5
    tWTR...................................: 5
    tWR....................................: 6
    tRFC...................................: 58
    tRTP...................................: 5
    Command Rate (CMD) ....................: 2
    Driving Strength Profiles
    Driving Strength ......................: 1066
    Channel A
    Static tRead Value.....................:     8
    tRD Phase0 Adjustment..................: [Auto]
    tRD Phase1 Adjustment..................: [Auto]
    tRD Phase2 Adjustment .................: [Auto]
    tRD Phase3 Adjustment..................: [Auto]
    Trd2rd(Different Rank).................: [Auto]
    Twr2wr(Different Rank).................: [Auto]
    Twr2rd(Different Rank).................: [Auto]
    Trd2wr(Same/Diff Rank).................: [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    DDR Write Training.....................: [Auto]
    Channel B
    Static tRead Value.....................:     8
    tRD Phase0 Adjustment..................: [Auto]
    tRD Phase1 Adjustment..................: [Auto]
    tRD Phase2 Adjustment .................: [Auto]
    tRD Phase3 Adjustment..................: [Auto]
    Trd2rd(Different Rank).................: [Auto]
    Twr2wr(Different Rank).................: [Auto]
    Twr2rd(Different Rank).................: [Auto]
    Trd2wr(Same/Diff Rank).................: [Auto]
    Dimm1 Clock Skew Control...............: [Auto]
    Dimm2 Clock Skew Control...............: [Auto]
    DDR Write Training.....................: [Auto]
    Motherboard Voltage Control
    Voltage Type...........................: [Manual]
    CPU---------------------Normal-----------Current
    Load Line Calibration..................: [Disabled]
    CPU Vcore...............1.25000V.......: 1.27500V
    CPU Termination.........1.200V.........: 1.200V
    CPU PLL.................1.500V.........: 1.500V
    CPU Reference...........0.760V.........: [Auto]  
    MCH/ICH
    MCH Core................1.100V.........: 1.200V
    MCH Reference...........0.760V.........: [Auto]
    MCH/DRAM Reference......0.900V.........: [Auto]
    ICH I/O.................1.500V.........: 1.500V
    ICH Core................1.100V.........: 1.100V
    DRAM
    DRAM Voltage............1.800V.........: 2.000V 
    DRAM Termination........0.900V.........: [Auto]
    Channel A Reference.....0.900V.........: [Auto]
    Channel B Reference.....0.900V.........: [Auto]
    Advanced Settings
    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]
    Integrated Peripherals
    Legacy USB Storage Detect .............: [Disabled]

  3. #13
    kick's Avatar
    kick is offline Senior Member
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    Default Re: What amateur OC is this?

    I assume the 3 lvels of performance u can set in bios are the same as the 3 performance lvls u can set in ET 6(if you start at standardin bios).
    I dont use ET6,
    I had problems with it before.
    When I select standard or turbo in the bios I dont go near the advanced timing control.
    From your setup it looks like youmake the memory run "turbo"when u adjust the advanced timings.
    For me its convenient.
    I think I had the memory running ok at 5-4-5-12 at 490 but it didnt seem to make much difference on measured bandwidth onsandra or cacheburst.

    From lsds sticky above on memory timing/bios settings ,I started using memset and changing timings in windows(but not saving them of course,just applying them.
    Anyway ill just mention one setting
    at 980mhz
    With 5-5-5-15 and standard performance set my memory shows tRFC at 64 .With turbo set in bios it goes to 52.
    I can apply tRFC of 48 in memset and it still works away happily.
    at 1000mhz
    5-5-5-15 tRFC at standard is 66 ,with turbo set it goes to 52 again and I can apply 48 using memset.

    Ive tested 100% memory with memtest and no errors on 490 standard and turbo and 500 standard and turbo.
    When I set tRFC to 48 i tested 15% of memory,cant remember was it on 490 or 500 fsb no errors.
    I have to put in nearly another .1 of voltage in bios to hold my memory stable at 1000mhz compared to 980 tho.

    The reason I mention tRFC is because in lsds guide above he suggests its the most important advanced timing.

    I cant measure any performance difference on bandwith/latency on my utilities between turbo at 490 or 500 .
    between standard and turbo i can tho.
    For me its about .7gb/s
    the performance difference between running at 800mhz memory 400fsb and 1000mhz 500 fsb in bandwitdh is more like 2.7gb/s.
    Thats what it shows on my machine anyway with Sandra and cacheburst.

    Even tho we have the same brand of memory,yours is better well sure rated higher,so any figures I might have on other timings might just mess yours up.
    I tried some 2x2 gb samsung 5300 memory.. it wasnt going anywhere
    It would oc to 360 mhz fsb ,I think that was about it ,course I had it in 4 stick config with the gskill 6400.
    Last edited by kick; 02-25-2009 at 01:03 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

  4. #14
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: What amateur OC is this?

    D strap will work at most any speed, you just have to set the correct MCH Voltage, Possibly MCH Ref voltage (Last) and tRD.

    Most users issues with the D strap/multi's are even if the do have the correct MCH Voltage, and sometimes this is less or more then one would expect, they have tRD to tight.

    Depending on Ram quality, overall ram and FSB Speed, all other ram timings and voltages most ram will only allow a tRD of 8-9 as a starting point.

    Most users who do not get it to work, or think they cannot are setting tRD 6-7 and this is the issue

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