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Thread: Stable E8400 OC - stock voltages




  1. #11
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    Default Re: Stable E8400 OC - stock voltages

    OK, the only change I would make to the above settings would be to run your memory DRAM volatge at 2.1V per the specs Like this:

    Code:
    DRAM
    DRAM Voltage............1.800V.........: 2.100V
    My memory says 2.0~2.1 so I got lucky by using the low end at 2.0V. From the link you sent me, it seems that your Corsair wants 2.1V so best set it to the specifications. That will give you the stability you seek.

  2. #12
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    Default Re: Stable E8400 OC - stock voltages

    ok, thanks, my memory is set on bios with that voltage.

    I'll try that bios settings, and hope everything goes fine with me.

    I'll be back with results.

    Thanks again

  3. #13
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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  4. #14
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    Default Re: Stable E8400 OC - stock voltages

    This is great. I'm just starting to look into OC'ing and you've given us a great starting point. Only problem is I'm not certain if you have the same HSF so your settings may not work for me!

    Thanks
    Gigabyte EP45-UD3R
    Intel Duo E8400
    Zalman CNPS9700 LED
    G.Skill 2GB DDR2 1066 x 2 CL 5 5-5-5-15 @ +2.0v
    XFX 8800GT AD
    320GB WD RAID1 (2 boot partitions)
    (3) WD SATA drives (data)
    SB X-Fi Extreme Gamer
    Thermaltake 600W
    Antec 900
    Vista Home 64b SP1
    HannsG 28" 1080p

  5. #15
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    Default Re: Stable E8400 OC - stock voltages

    I have the Arctic Cooler Pro 7. However, this should not matter one bit. My point was that the settings I gave should result in a stable overclock at stock voltages, so no additional heat should be generated. A stock Intel cooler will work fine, even if you had to bump a few settings up a bit.

    With the rig in your signature, you should be in fine shape!

  6. #16
    Join Date
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    Default Re: Stable E8400 OC - stock voltages

    I've been looking for some stable settings and fortunately you listed the same specs I have so I copied your settings and voila! Things seem to work perfectly for me! Most of the other threads I have read on various forums seem to be more focused more on squeezing every last drop of life out of their components while I was looking for something more along these lines. Noticeable performance increase + 0 change in heat = wonderful! I must say everyone has been extremely helpful to a beginner like me, both members and admins. Thanks!

  7. #17
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    Default Re: Stable E8400 OC - stock voltages

    Excellent! Happy to hear this was a success for you!
    Gigabyte EP45-UD3R (F7 BIOS)
    Intel Pentium E8400 E0
    Arctic Cooling Freezer 7 Pro
    G.Skill DDR2 1066 (2x2GB) 5-5-5-15 @ 2.0V~2.1V
    EVGA GeForce 9800 GT 512MB
    (3x) Seagate Barracuda 250GB SATA II Drives
    CORSAIR 650TX 650W PSU
    Cooler Master Centurion 5 Case
    XP Professional 32-bit SP3

    Stable E8400 OC - stock voltages
    Stable E8400 OC - 3.83

  8. #18

    Default Re: Stable E8400 OC - stock voltages

    You mind if I jump in on this?

    Running the same mb (GA EP45-UD3R) with the E8400. Have 4 Gig of OCZ Reaper that runs at 2.2v and is 1100Mhz.

    I'm trying to OC at 4Ghz.


    • CPU Host Freq = 450
    • SMM - 2.00B = 900 (tried 1066)
    • RAM Timings = 5/6/6/18 (OCZ specs)
    • CPU VCore = 1.3v (lower?)
    • MCH Core = 1.25V (tried 1.1, 1.3)
    • DRAM Volt = 2.2v (OCZ specs - also current setting)

    I've been testing with OCCT. But either the PC locks up, reboots after about 20 min or OCCT reports an error. Always an error on Core #1. Today, not long ago, I got the same error (not sure what all this means) and I'm still working in Windows. OCCT v3.1 through an error that I submitted to MS. Didn't happen with v3.0.

    No idea what to do with some of the other adjustments/timings. This board has way more than I've ever seen.

    Using the Xigmatek HDT-S1283 along with Tuniq TX-2 .

  9. #19
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Stable E8400 OC - stock voltages

    Well at 4Ghz you are going to need to set alot more settings then you mentioned. So if they are in Auto then that may be why you are having issues. Vcore 1.3? Ya, I would think maybe

    Please post me a link to your ram and then give me the full settings you are using now and I will advise back on where to start

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

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto or Fast
    CPU Clock Ratio ..........................: 
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: Mhz
    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 ..............: 
    Memory Frequency (Mhz) ..............: 
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................
    tRCD .........................................
    tRP'...........................................
    tRAS..........................................
    
    Set all Suggested below to highest Values first.  Then later you can lower, one at a time, testing as you go
    
    Advanced Timing Control
    tRRD...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................
    tRTP...........................................
    Command Rate (CMD) ....................:2
    
    Driving Strength Profiles
    Driving Strength ............................
    
    Channel A
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
     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.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
     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….……….........................:Auto if not overclocking, if you are overclocking please do find and set your own voltages
    
    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...........: << 
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.500V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave
    
    DRAM
    DRAM Voltage ……....1.800V............: 
    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

  10. #20

    Default Re: Stable E8400 OC - stock voltages

    Quote Originally Posted by Lsdmeasap View Post
    Please post me a link to your ram and then give me the full settings you are using now and I will advise back on where to start
    Here's the link for the RAM. I'm using the recommended settings:

    OCZ Technology | Products | End of Life | OCZ DDR2 PC2-9200 Reaper HPC 4GB Edition

    I'll get the info you wanted and post it here before long.

    By the way my mb is version 1.1 if that matters.

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