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Thread: GA-EP45-UD3P E8400 OC problems




  1. #11
    Join Date
    Jul 2009
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    Default Re: GA-EP45-UD3P E8400 OC problems

    I have returned with the overclocked specs online, i have not tested to see if they are stable.

    QUESTION. when i set the VTT to 1.200 and set the MCH reference to 0.650 and went back to the VTT and set it at 1.280 the MCH reference automatically went to 0.700. working as intended?

  2. #12

    Default Re: GA-EP45-UD3P E8400 OC problems

    yes, that is how it works, which is why the general guideline is to set VTT to 1.200 first before setting MCH reference. It makes it a bit easier.


    Core2Duo E8500 E0 @4.25GHz (500x8.5)
    | Windows 7 RC Build 7100 | Visiontek HD4850 OC 685/1100
    Gigabyte
    GA-EP45T-DS3R | 4Gb (2x2Gb) 1333MHz Patriot DDR3 | 1.14TB (640+500gb) WDC Green
    Antec Earthwatts 500w |
    Antec Nine Hundred
    Screenshots:
    [1][2][3][4][5][6]

  3. #13
    Join Date
    Jul 2009
    Posts
    25

    Default Re: GA-EP45-UD3P E8400 OC problems

    ok i'll be running prime95. i'll get back to you with any information that comes up. by the way youve been very helpful in helping me.i greatly appreciate it, if i want to do this on my own i have to ask questions lol.
    Antec 1200 case
    GA-EP45-UD3P Rev. 1.1 F6
    E8400 @ 445X9 4.00GHz 1.36250v core. vtt 1.280v.
    Patriot Extreme Performance 4GB 5-5-5-15 1066 2.1v
    BFG Tech 285 GTX OC (702/1584/1332)
    BFG Tech PSU LS 550W quad 12v rails
    Zalman CNPS9700-NT 2800rpm @ 35 dBA

  4. #14

    Default Re: GA-EP45-UD3P E8400 OC problems

    No problem. I sent you a PM. go check it.


    Core2Duo E8500 E0 @4.25GHz (500x8.5)
    | Windows 7 RC Build 7100 | Visiontek HD4850 OC 685/1100
    Gigabyte
    GA-EP45T-DS3R | 4Gb (2x2Gb) 1333MHz Patriot DDR3 | 1.14TB (640+500gb) WDC Green
    Antec Earthwatts 500w |
    Antec Nine Hundred
    Screenshots:
    [1][2][3][4][5][6]

  5. #15
    Join Date
    Sep 2010
    Location
    Winter Parl, FL.
    Posts
    5

    Default Re: GA-EP45-UD3P E8400 OC problems

    Not to revive an old thread, but I would like to know how and if the memory issue was resolved. I am about to buy a ga-ep45-ud3p and have 6 gigs of the same memory in a p965 Asus Board on Win 64 Pro

  6. #16
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-UD3P E8400 OC problems

    I'd go ahead and PM those members just in case, that way they know you are asking how things turned out.

  7. #17
    Join Date
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    Winter Parl, FL.
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    Default Re: GA-EP45-UD3P E8400 OC problems

    Quote Originally Posted by Lsdmeasap View Post
    I'd go ahead and PM those members just in case, that way they know you are asking how things turned out.
    How considerate. Thank you!

  8. #18
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-UD3P E8400 OC problems

    If they don't reply back to you in a few days let me know maybe I can help.

    If you think I can help, give me your full specs and current BIOS settings (Template in my signature), and explain your issue and I'll see if I can help you get it sorted out.

  9. #19
    Join Date
    Sep 2010
    Location
    Austin, TX
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    Default Re: GA-EP45-UD3P E8400 OC problems

    I've been having trouble achieving even a very minimal baseclock overclock that will boot, and I'm not sure what I'm doing wrong that would cause this behavior. Any advice or help would be much appreciated.

    My story goes like this. I boot and enter the bios setup. I lower the clock and memory multipliers and raise the FSB to 425MHz. I then exit setup. The system "hard boots" as it resets the multipliers and boots up normally. For this experiment, I'm booting MemTest-86+ 4.1. The memtest seems to run fine, although I've not done an extensive test at those frequencies.

    My problem (and my question) starts when I hit escape <escape> and reboot from within MemTest-86+. The system attempts a soft-boot. Virtually all (but not quite all) of the time, the soft-boot will fail, and the system attempts a hard boot. This also fails and the system restores default settings to the CMOS/BIOS.

    I've run Prime95 at up to a 500MHz base clock in Windows by booting at 400MHz and then increasing the using EZ-Tune. If I set the clock inside setup, the will boot at 425MHz when leaving setup. It just won't soft boot after leaving Windows or Memtest86+.

    In the settings I provide below, a setting of the form A / B is where A is the settings I normally use in my stable system, and B is what I'm trying and failing to get to boot properly. For example, 3.8GHz / 3.4GHz means that the system is perfectly stable at a 9.5X CPU multiplier and 400MHz clock, but won't reboot with a 8x425 = 3.4GHz clock.

    Code:
    CPU = Intel E8500 Wolfdale, E0 Rev, Stepping A
    Motherboard = Gigabyte EP45T-UD3P, rev 1.0
    BIOS Version = F6
    Ram = two sticks G.SKILL F3-12800CL7-2GBHZ (1600MHz, 7-7-7-18-2T@1.9V) 
    
    Code:
    
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................:  9x / 8x
    Fine CPU Clock Ratio.....................:. 0.5 / 0
    CPU Frequency ...........................: 3.8GHz / 3.2GHz
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 400 Mhz / 425MHz
    PCI Express Frequency (Mhz) .........:100
    
    C.I.A.2 .................................:[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................:  800
    PCI Express Clock Drive.................: 900
    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 ..............: 4.00D / 3.33D
    Memory Frequency (Mhz) ..............: 1600 MHz / 1416 MHz
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................ 7
    tRCD ......................................... 7
    tRP'........................................... 7
    tRAS.......................................... 18
    
    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........................................... auto
    tWTR.......................................... auto
    tWR............................................ auto
    tRFC........................................... auto
    tRTP........................................... auto
    Command Rate (CMD) ....................:2
    
    Driving Strength Profiles
    Driving Strength ............................ auto
    
    Channel A
    Static tRead Value.........................: Auto
     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  ps
    Dimm2 Clock Skew Control...............:Auto  ps
    
    Channel B
    Static tRead Value.........................: Auto
     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  ps
    Dimm2 Clock Skew Control...............:Auto  ps
    
    Motherboard Voltage Control
    
    CPU
    CPU Vcore….……….........................: 1.325V
    
    CPU Termination…..... 1.200V*.......: 1.200V (have tried higher)
    
    CPU PLL…………………....1.500V*.......: 1.500V (have tried 1.60 and 1.65V)
    
    CPU Referen.…………....0.755V*.......: 0.760
    
    CPU Reference2………,,0.800V*.......: n/a
    
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.200
    MCH Reference….…….0.760V...........; auto
    MCH/DRAM Ref.…......0.900V...........: 0.900
    ICH I/O……………….....1.500V............: auto
    ICH Core…………...……1.100V............: auto
    
    DRAM
    DRAM Voltage ……....1.800V............: 2.000V
    DRAM Termination .…0.900V............: 0.900V
    Channel A Reference 0.900V............: 0.900V
    Channel B Reference 0.900V............: 0.900V
    
    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.........................: Enabled / Disabled
    Virtualization Technology................: Enabled
    So, in quick summary... my system seems to work fine with a 400Mhz base clock, using the max CPU multiplier (9.5X) and the 2X memory multiplier for a 3.8GHz CPU and 1600MHz memory. It will boot, run stable, reboot, sleep, wakeup, etc. However, at a 425MHz base clock, the system will boot and run when initially exiting setup, but will not re-boot (and restores the CMOS to default settings after failing).

    Have I done something particularly stupid?

    Thanks</escape>

  10. #20
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: GA-EP45-UD3P E8400 OC problems

    Leave all reference voltage on auto.
    Try higher MCH Core 1.24-1.28v, and more VTT 1.22-1.26v.
    Set PLL 1.55-1.59v.
    Please read this post, and provide the information requested in steps 1, 2, and 4.

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