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Thread: Overclocking e8500 + UD3R




  1. #1
    Join Date
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    Talking Overclocking e8500 + UD3R

    Let's find the Maximum FSB.

    I have low the CPU Multiplier to 6
    I have low the RAM frequency.

    So the only wall-limit is FSB.

    Let me show my results so far.

    All Voltages stock
    8x353 -> OK
    8x373 -> OK
    8x393 -> OK
    7x413 -> OK
    7x433 -> OK
    6x353 -> FAILED

    So let's find why failed.
    ---> Multiplier Check: 6x333 [ok]
    ---> Freq Speed bug: 2Ghz tested [ok]
    ---> VTT Check: 1.220v [didn't boot]
    ---> 1.240 [ booted but restarted immediately]
    ---> 1.260 [ booted but restarted while loading Windows 7]
    ---> 1.280 [ booted but restarted while loading Windows 7]
    ---> 1.300 [ Failed with IBT]
    ---> Check GTL (was AUTO) with MCH Ref 0.84
    ---> Fix GTL back to NORMAL: Ok. Passed 10 loops with IBT at Maximum level.

    Let's go for 6x473 @ 1.216 | 1.3VTT
    1st attempt: Black Screen at Windows
    2st attempt: BSOD during IBT

    Should I :
    a) Raise the VTT ?
    b) Low the MCH Ref ?
    c) Raise MCH Core ?
    d) Raise CPU PLL ?
    Last edited by Dr.Paneas; 07-12-2009 at 07:03 AM.

  2. #2
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    Nah, it doesn't work that way.
    You have a new setup and you go straight 473FSB, and wonder if it's vcore or vmch or other, that won't do.
    Get your system stabilized at stock settings. (at least several hours of different stress tests).
    Read the 2 first post in the memory timings guide sticky at the top of the forum.
    Read posts about overclocking issues and settings solved them, to get the idea how things work.
    Define your goal, and start climbing with smaller increments as you go up. For each obstical find it's solution.

    Oh and put your setup detauls in your signature so ppl can know what it's all about, and when posting about an issue, fill your settings in the template you can find here and post them serounded with code tags (the # icon at the top of post editor.

    Good luck.

  3. #3
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    Default Re: Overclocking e8500 + UD3R

    My stock / default settings:

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 9 x
    Fine CPU Clock Ratio.....................:.+ 0.5
    CPU Frequency ...........................: 3.16Ghz ( 333 x 9.5)
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 333 Mhz
    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)....................: <<< 
    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 ..............: 3.2B
    Memory Frequency (Mhz) ..............: 1066   1066
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................  5
    tRCD ........................................   5
    tRP'...........................................  5
    tRAS..........................................  15
    
    Advanced Timing Control
    tRRD........................................... 3
    tWTR.......................................... 4
    tWR............................................ 6
    tRFC........................................... 48
    tRTP........................................... 4
    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….……….........................: 1.216
    
    CPU Termination…..... 1.200V*.......: 1.200
    
    CPU PLL…………………....1.500V*.......: 1.500
    
    CPU Referen.…………....0.786V*.......: Normal
    
    
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.100
    MCH Reference….…….0.786V...........; Normal
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.500V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave
    
    DRAM
    DRAM Voltage ……....1.800V............: 2.100
    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 ..............[Enabled]
    I am testing now 6x500 --> 1.216 Vcore (stock) | 1.3 VTT | 1.3 MCH Core
    I am testing with IBT...

    I think that 500FSB is good enough.
    I want a stable overclocking at 4Ghz (so maybe 8x500 or 8.5x470 ). I do not want to have a big multiplier cause cpu temp.

    Although my NB Temp is 54-52 C. Is that OK for every day usage ?
    Last edited by Dr.Paneas; 07-12-2009 at 08:51 AM.

  4. #4
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    Default Re: Overclocking e8500 + UD3R

    Ugh I don't know much about this over clocking stuff but if it were me trying to find my FSB wall I would set multiplier to 6X and raise the fsb untill it crashed. You can start with your stock voltage then raise the voltage as high as you like using the same method.

    Such as

    1.2500 + 6 @ 333 FSB = OK
    1.2500 + 6 @ 350 FSB = OK
    1.2500 + 6 @ 400 FSB = OK
    1.2500 + 6 @ 450 FSB = failed

    that would be it for that voltage

    1.2625 + 6 @ 333 FSB = OK
    1.2625 + 6 @ 350 FSB = OK
    1.2625 + 6 @ 400 FSB = OK
    1.2625 + 6 @ 450 FSB = Failed

    Clear as mud right.

  5. #5
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    Quote Originally Posted by Conners View Post
    Clear as mud right.
    Not necessarily so.

    For example, I had mine
    1.056v @ 266 x 9.5 stable
    1.056v @ 333 x 9.5 stable
    1.056v @ 400 x 8 no post

    What should i do? raise vcore? nope, raised tRD and tRFC and MCH Voltage (still testing if needed)
    There's no guarantee vcore is the cause, and you can't realy try it with "safe settings" because if there were such, GIGABYTES' safe defaults would acrually work and there wouldn't be so many posts about problems on the forum.

    My goal, as I think all overckloker's goal should be, is to atchive maximum performance (not necessaraky cpu clock or FSB) with the minimal required settings.

    What is performance is, everyone should define for themselves.

  6. #6
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    Default Re: Overclocking e8500 + UD3R

    Vcore has nothing to do with FSB. Vcore is about CPU Freq Speed.

    FSB has to do with VTT (known as FSB Termination or CPU Termination) and with MHC (Northbridge) Voltage.

    I think that I should try from the beginning raising only the MCH Core and then VTT.

  7. #7
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    Default Re: Overclocking e8500 + UD3R

    Which are the stressing Tools you use to test stability ?

    I use Linx with Problem Size: 20 000
    then I use IBT with Maximum Stress Level for 10 loops

    Should I try any other such as Prime95, Orthos or Memtest86 ?

  8. #8
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    Yeah either ORTHOS or Prime95, the generate less heat but I had ORTHOS failed where LinX pass without errors.
    MemSet is not a stress program realy, meant to detect defective memory although it does find sometimes problem that results from settings.

  9. #9
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    Default Re: Overclocking e8500 + UD3R

    Quote Originally Posted by Chike View Post
    Yeah either ORTHOS or Prime95, the generate less heat but I had ORTHOS failed where LinX pass without errors.
    MemSet is not a stress program realy, meant to detect defective memory although it does find sometimes problem that results from settings.
    I see
    So, should I try Small FFT or Blend ?
    I think that if Small FFT crash first, there is no reason to try the Blend test.
    How many hours should I try testing with Orthos ?

  10. #10
    Chike is offline Senior Member
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    Default Re: Overclocking e8500 + UD3R

    The difference between the blend and large is by the way they use the memory (not sure what the inplace means) while the small FFT attempts to not to acees memory at all. So it's a different pattern of stress.
    A couple of houes at least, overnight will be fine, and at the end it will be the software you use to verify you are stable.
    Read people saying all stresses pass without error but then a video game may crash.
    You can't be absolutely sure if you are stable,but you can be sure with a high probability.

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