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Thread: GA-EP45-DS3P, OC not possible, boot loop




  1. #1
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    Default GA-EP45-DS3P, OC not possible, boot loop

    Hi all,

    first of all, bear with my english, i am not a native talker.

    I got a problem with my GA-Ep45 DS3P. With a Bios newer than F6 it is impossile for me to OC. The PC will continously reboot ("boot loop"), even if i raise the FSB by only one MHZ- (From 333MHZ to 334 MZ -> Boot loop.)

    This only happens with the new Bios versions F7 and F8. I literally tried everything. I read a lot on this forum, i lowered the Dram timing, i adjusted tRFC to 64, nothing helps. As i said: It only taked 1 MHZ to make this board non bootable.

    OC works fine with F7 and F8 though, ut i need the newer Bios, since i will change my CPU and it will not be recognized with F6

    My system configuration:

    GA-EP45 DS3P
    E8500
    2 x 2 GB (Corsair TWIN2X4096-6400C5DHX)
    Gigabyte Geforce 280
    Enermy Infiniti 650 Watt

    please help

  2. #2
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    Wow, no one?

  3. #3

    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    i had the same thing man, the store i've bought it from said it's a faulty mobo, will get a new one in couple of days,
    exactly i couldnt get further then 333, and going up to 3.33 with E7300 was a nightmare, and i used a high voltage for that :S while i should get it on stock.
    didnt know it's a bios problem :S.
    try getting everything back to default after updating bios, and i MEAN everything, not just the main mit section, all settings u can open with ENTER in MIT press in them F7.
    or wait for LSD, he will solve it for sure :D

  4. #4
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    Hm well of course is set everything to default, i did countless CMOS resets, everything one can imagine of, right after installing the new Bios. Still no success. It's definatly a RAM issue, i think.

    Lowering Ram timings to rediculous low values didn't help either :( (I set tRFC to 64 for example already.)

  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    Did you flash properly when you flashed to the newer BIOS? You MUST load and apply/save/reboot back to the BIOS after you flash

    What CPU are you getting, it may work with F7 or F8 is why I ask. And you only mention one timing, what others are you setting and what voltage did you set? 4GB needs a bit more tweaked then just one timing.

    Please post what you have set and I will advise to see if I can get you going >>>>

    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 ...............: 
    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...........................: <<< 
    PCI Express Clock Drive.................: <<< 
    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..........................................
    
    Advanced Timing Control
    tRRD...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................
    tRTP...........................................
    Command Rate (CMD) ....................:2
    
    Driving Strength Profiles
    Driving Strength ............................
    
    Channel A
    Static tRead Value.........................:7-10
     tRD Phase0 Adjustment...................:<<< 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.........................:7-10
     tRD Phase0 Adjustment...................:<<< 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….……….........................:
    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: <<< Leave
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above)
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)
    
    MCH/ICH
    MCH Core…………….....1.100V...........: << 
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< 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

  6. #6
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    Quote Originally Posted by Lsdmeasap View Post
    Did you flash properly when you flashed to the newer BIOS? You MUST load and apply/save/reboot back to the BIOS after you flash
    Yes, i would say, i did everything the way it should be done. Before flashing i loaded "optimal settings" in the old bios (F6). I told Qflash to reset DMI settings and right after the flashing to F7 or F8 i entered the new Bios and again loaded "optimal settings".
    Then i applied first the new voltages, leaving everything else on standard or auto.
    And after that i loosened timings and only set the FSb from 33 to 334 ----> Boot loop.

    At standard settings there is no problem to boot with the new Bios veresions F7/F8. Only when overclocking the boot loop happens.

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9
    Fine CPU Clock Ratio.....................:.5
    CPU Frequency ...........................: 3.17 GHZ
     
     
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 334 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)....................: <<< Auto
    MCH Clock Skew (ps)...................: <<< Auto
     
     
    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) ..............: 333
    DRAM Timing Selectable ................: [Manual]
     
    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 18
     
    Advanced Timing Control
    tRRD........................................... 3 
    tWTR.......................................... 3
    tWR............................................ 6
    tRFC........................................... 54
    tRTP........................................... 3
    Command Rate (CMD) ....................:2
     
    Driving Strength Profiles
    Driving Strength ............................ Auto
     
    Channel A
    Static tRead Value.........................:10
     tRD Phase0 Adjustment...................:<<< 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.........................: 10
     tRD Phase0 Adjustment...................:<<< 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….……….........................: 1.3500
    CPU Termination…..... 1.200V*.......: Normal
    CPU PLL…………………....1.500V*.......: Normal
    CPU Referen.…………....0.755V*.......: Normal
    CPU Reference2………,,0.800V*.......:Normal
     
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.26oV
    MCH Reference….…….0.800V...........; Normal
    MCH/DRAM Ref.…......0.900V...........: Normal
    ICH I/O……………….....1.550V............: Normal
    ICH Core…………...……1.100V............: Normal
     
    DRAM
    DRAM Voltage ……....1.800V............: 1.960V
    DRAM Termination .…0.900V............: Normal
    Channel A Reference 0.900V............: Normal
    Channel B Reference 0.900V............: Normal
     
    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
    [/quote]


    edit: the timings /settings above work fine with F6 and F5 and are prime stable. (12 hour testing) and i have no problems to OC my CPU up to 4.2 GHZ... But they don't work with F7 and F8.

    For RAM specifications, please review my first post.
    Last edited by Diotissima; 10-21-2008 at 11:50 PM.

  7. #7
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    See if this helps you to OC, and hey did you try a larger FSB jump then 1Mhz? Like right to 400?

    All of this for sure can be lowered later, but high often helps with getting started

    G)MCH Frequency Latch...............: [333] << This is what Auto is giving you, I can tell by the B in the multi below. You may also want to try 400 as you overclock it will make the NB timings looser

    System Memory Multiplier ..............: 2.40
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]


    Advanced Timing Control
    tRRD........................................... 5
    tWTR.......................................... 12
    tWR............................................ 14
    tRFC........................................... 68
    tRTP........................................... 5
    Command Rate (CMD) ....................:2

    Driving Strength Profiles
    Driving Strength ............................ 1066

    Channel A & B
    Static tRead Value.........................:10

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.3

    DRAM
    DRAM Voltage ……....1.800V............: 2.1

    ALL BIOS's are different, so you may or may not need to start over for timings between BIOS revisions. Best to always start high when you run into issues

  8. #8
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    I will test your suggestions in the late evening hours here and thanks for your kind help. i will report back with those new settings. (I tried FSB at 400, at 334, at 350 etc. no difference there.)

  9. #9
    Lsdmeasap's Avatar
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  10. #10
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    Default Re: GA-EP45-DS3P, OC not possible, boot loop

    I am testing it now, i came back too later yesterday night. ;)

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