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Thread: EP43-DS3L Overclocking Help w/ E8400




  1. #1
    Join Date
    Dec 2008
    Posts
    12

    Default EP43-DS3L Overclocking Help w/ E8400

    Uhh hi guys I'm having some trouble OC'ing my E8400... No matter what settings I change the computer won't POST the first time then it'll reboot and the settings will be normal not OC'd ones. I wanted to hit 3.6 but I only went to 3.16 at first and it still didn't work. Are there settings I'm missing or something (I'm sure there are =P). This is on an EP43-DS3L btw with 2x2GB OCZ Reaper HPC DDR2800 in dual channel (if that matters).
    Here are my current M.I.T. settings:

    Robust Graphics Booster->Auto
    CPU Clock Ratio->9X

    *****Clock Chip Control*****

    >>>Standard Clock Control
    CPU Host Clock Control->Enabled
    CPU Host Frequency (Mhz)->333
    [COLOR=blue ! important][COLOR=blue ! important][COLOR=blue ! important][/COLOR][/COLOR][/COLOR] PCI Express Frequency (Mhz)->100
    C.I.A.2->Disabled

    >>>Advanced Clock Control
    CPU Clock Drive->800mV
    PCI Express Clock Drive->800mV
    CPU Clock Skew->0ps
    MCH Clock Skew->0ps

    *****DRAM Performance Control*****
    Performance Enhance->Standard
    Extreme Memory Profile (X.M.P.)->Auto
    (G)MCH Frequency Latch->333 Mhz
    System Memory Multiplier (SPD)->2.40B

    DRAM Timing Selectable (SPD)->Manual

    >>>Standard Timing Control
    CAS Latency Time->5
    tRCD->5
    tRP->5
    tRAS->15

    >>>Advanced Timing Control
    tRRD->3 (Auto)
    tWTR->3 (Auto)
    tWR->6 (Auto)
    tRFC->54 (Auto)
    tRTP->3 (Auto)
    Command Rate (CMD)->0 (Auto)

    *****Mother Board Voltage Control*****
    >>>CPU
    CPU Vcore->1.22500V
    CPU Termination->Auto
    CPU PLL->Auto
    CPU Reference->Auto

    >>>MCH/ICH
    MCH Core->Auto
    ICH I/O->Auto

    >>>DRAM
    DRAM Voltage->1.800V

    Thanks!

  2. #2
    Join Date
    Sep 2008
    Posts
    990

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    The most basic thing that you need to know is that you increase the FSB to increase the CPU speed. RAM speed is linked to the FSB though by a factor that is adjustable so you will need adjust that factor as well. Additionally, you will need to increase voltages.

    Copied form the guide I'm working on ;)

    You probably overclocked your RAM which it may not be able to handle.

    So basically put system memory multiplier to 2.0D, increase the VCore by 0.05V over stock and try increasing the FSB

  3. #3
    Join Date
    Dec 2008
    Posts
    12

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    So how much should I increase the FSB by? And I kinda regret getting a P43 now as there aren't that many overclocking options. I'm pretty sure I didn't OC the RAM, what I had above is 333x2.4=800 but when I set the FSB to 350 (350x9=3.15) the RAM was at 700mhz or so the BIOS said...

  4. #4
    Join Date
    Sep 2008
    Posts
    990

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    Try setting FSB to 400 bur reduce CPU clock ratio to 8 though to get to 3.2GHz for starters. Also set the CPU Vcore to 1.275V diable loadline calibration and set CPU PLL and CPU termination to the stock value. Make sure the syytemmemory multiplier is at 2.0D.

    Then run Prime 95 and monitor the temperature with Core Temp or Real temp.

    Also, could you make some photogrpahs of the M.I.T. menu in your BIOS? I would like to check whether the P43 actually does have less OC options than the P45 models, because I think they should be the same.

  5. #5
    Join Date
    Dec 2008
    Posts
    12

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    Ok if I set the memory multiplier to 2.0D what should the (G)MCH Frequency Latch be? Should it match the CPU at 400mhz?

    As for the pics I'll try later but I don't have a camera I can use so it might just be webcam quality...

  6. #6
    Join Date
    Sep 2008
    Posts
    990

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    You can leave it at auto. As far as I can tell the only thing this does is only make the system memory multipliers for A(266), B(333), C(200) and D(400) available ins said option.

    Pics would be great, and quality doesn't matter as long the settings are identifiable.

  7. #7
    Join Date
    Dec 2008
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    12

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    Ok well I'm having problems. Set the clock ratio to 8x, vcore to 1.275, memory multiplier to 2.0D, FSB to 400. Exit BIOS, get the double boot thing other people have where it won't POST the first time then reboots and restores some settings. Go in the BIOS, get the error
    "The system has experienced boot failures because of overclocking or changes of voltages. Last settings in this page may not coincide with current H/W states."

    Now in windows CPU-Z shows the 8x clock ratio stuck but not the FSB so now I'm at 2.66 (333x8).

    Also had a question about RAM timings, CPU-Z gives me a table under SPD:


    What timings should I run at? I'm a bit confused about JEDEC and EPP...

  8. #8
    Join Date
    Sep 2008
    Posts
    990

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    The BIOS reverts the FSB to the stock value if it fails to boot with the OC setting, but it leaves the multiplicator user defined, so that's perfectly normal behaviour.

    JEDEC are the standardized timings for crappy budget modules. EPP means Enhanced Performance Profile (intel calls it Xtreme Memory Profile) and includes the timings that the RAM is specified for by the manufaturer, so those are the timings you want to run it at.

    Fill out this template with your settings including my recommendation please:
    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto or Fast
    CPU Clock Ratio ..........................: x
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: x.xx
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 500Mhz or 417Mhz *See Ram Multi Note*
    PCI Express Frequency (Mhz) .........:Set to 100
    
    C.I.A.2 .................................:[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 800
    PCI Express Clock Drive.................: <<< 900
    CPU Clock Skew (ps)....................: <<< 
    MCH Clock Skew (ps)...................: <<< 
    
    
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.00B/2.00D or 2.40 (*2.00 for 500 FSB - 2.40 for 417 FSB)
    
    Memory Frequency (Mhz) ..............: 1000Mhz
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 15
    
    
    Advanced Timing Control
    tRRD........................................... 3
    tWTR.......................................... 3-4
    tWR............................................ 5-6
    tRFC........................................... 50-54
    tRTP........................................... 3
    Command Rate (CMD) ....................:2
    
    Driving Strength Profiles
    Driving Strength ............................ 1066
    
    Channel A
    Static tRead Value.........................:7/8-9 (Depending on other voltages and strap being used)
    
     tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
    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  ps
    Dimm2 Clock Skew Control...............:Auto  ps
    
    Channel B
    Static tRead Value.........................:7/8-9 (Depending on other voltages and strap being used)
    
     tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
    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  ps
    Dimm2 Clock Skew Control...............:Auto  ps
    
    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….……….........................: x.xx
    CPU Termination…..... 1.200V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking
    
    CPU PLL…………………....1.500V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking
    
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly 
    
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly 
    
    MCH/ICH
    MCH Core…………….....1.100V...........: << 1.2-1.26 (amount needed will depend on Strap used and tRD used)
    
    MCH Reference….…….0.800V...........; <<< May need adjusted, depends on your board and CPU being used, and all other voltages.  See my signature for how to adjust.
    
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< 1.5-1.55
    ICH Core…………...……1.100V............: <<< 1.14-1.2
    
    DRAM
    DRAM Voltage ……....1.800V............: 2.0V (2.05V May be needed)
    DRAM Termination .…0.900V............: <<< Leave
    Channel A Reference 0.900V............: <<< Leave
    Channel B Reference 0.900V............: <<< Leave
    
    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] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB

  9. #9
    Join Date
    Dec 2008
    Posts
    12

    Default Re: EP43-DS3L Overclocking Help w/ E8400











    Error Message:

  10. #10
    Join Date
    Dec 2008
    Posts
    12

    Default Re: EP43-DS3L Overclocking Help w/ E8400

    Also about RAM voltage, in the BIOS 2.1 flashes pink and 2.2 upwards is just red (I'm assuming this is warning against setting voltage that high). What should I do then? According to the EPP column of CPU-Z, I should set timings to 4-4-4-15 at 2.2V and put the command thingy to 2?

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