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Thread: Help me improve/optimize my EP45-UD3P and Q9550




  1. #131
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    Looks good, only thing I would try once you start testing to try and lower things again would be this.

    Try setting 2.1-2.15 Vdimm and then see if you can lower MCH Core, that should help and allow you to do so.

    And yes, save up for a new cooler :)

  2. #132
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    Hmm, that seems to help actually. I recall that I tried 1.42v MCH and it froze when loading Windows. But trying it now with 2.1v Mem, I got 4 hours 20 minutes in large FFT's in Prime. No errors, I just stopped it. I did try 1.4v MCH and it failed but even lowering .2v is progress :) I'm going to keep playing around.
    A site I've made from scratch:


    Computer Specs:
    AMD Phenom II x6 1090T @ 3.655GHz (215x17) (stock volts)
    Gigabyte 890FXA-UD5 (NB @ 2.58GHz, HT @ 2.15GHz) (stock volts)
    G.Skill RipJaws F3-12800CL9D-8GBRL @ 1.72GHz 9-9-9-24-1T 1.65v
    EVGA GTX 275, 2x250GB SATA RAID0, Corsair AX850
    TRUE w/Delta 120x38mm

  3. #133
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    With 8GB MCH of 1.26-1.34 should be plenty, but you may need a bit more of course it all depends on the hardware.

    Using 2.15 Vdimm can also help lower it too, normally more vdimm would be needed anyhow with 8GB of memory.

  4. #134
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    Well I'm actually getting mixed results now, I don't know if the 2.12v for the memory helped or not. When I get a lot of spare time, I'll run through probably 1.2-1.44v for MCH and see if like 1.38-1.42 is a bad spot or something. Maybe the MCH ref needs to be adjusted. I mean, I hate running it so high but it IS stable...
    A site I've made from scratch:


    Computer Specs:
    AMD Phenom II x6 1090T @ 3.655GHz (215x17) (stock volts)
    Gigabyte 890FXA-UD5 (NB @ 2.58GHz, HT @ 2.15GHz) (stock volts)
    G.Skill RipJaws F3-12800CL9D-8GBRL @ 1.72GHz 9-9-9-24-1T 1.65v
    EVGA GTX 275, 2x250GB SATA RAID0, Corsair AX850
    TRUE w/Delta 120x38mm

  5. #135
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  6. #136
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    0.800v for MCH, CPU ref is at stock.
    A site I've made from scratch:


    Computer Specs:
    AMD Phenom II x6 1090T @ 3.655GHz (215x17) (stock volts)
    Gigabyte 890FXA-UD5 (NB @ 2.58GHz, HT @ 2.15GHz) (stock volts)
    G.Skill RipJaws F3-12800CL9D-8GBRL @ 1.72GHz 9-9-9-24-1T 1.65v
    EVGA GTX 275, 2x250GB SATA RAID0, Corsair AX850
    TRUE w/Delta 120x38mm

  7. #137
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    That is fine, I have seen some with less memory at .82-.84, of course using less MCH core though.

    I think it will be fine though, just try to get the MCH Core down a bit if you can

  8. #138
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    This is wild. I found that if I dropped CPU Clock Drive from 900 to 800 allowed stability when dropping vcore as well. I'm now at 1.376v instead of 1.392v in CPU-Z. I've also tightened memory timings as far as they can go.

    Current template (9+ hours in Prime95 Large FFT):
    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................: .0
    CPU Frequency ...........................: 4.0GHz
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 500Mhz
    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)...................:50
    
    
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: Auto
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ..............: 1000
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................4
    tRAS..........................................12
    
    Advanced Timing Control
    tRRD...........................................1
    tWTR..........................................2
    tWR............................................2
    tRFC...........................................42
    tRTP...........................................1
    Command Rate (CMD) ............................1
    
    Driving Strength Profiles
    Driving Strength ............................OC-1200
    
    Channel A
    Static tRead Value.........................:9
     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.........................:9
     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
    
    Load Line Calibration.................: Enabled
    CPU Vcore….……….........................: 1.41250v (1.376v in CPU-Z depending on load)
    CPU Termination…..... 1.200V*.......: 1.36v
    CPU PLL…………………....1.500V*.......: 1.57v
    CPU Referen.…………....0.755V*.......: 0.76v BIOS @ 1.2vtt
    
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.44v
    MCH Reference….…….0.760V...........; 0.800v
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.500V............: 1.5v
    ICH Core…………...……1.100V............:1.1v
    
    DRAM
    DRAM Voltage ……....1.800V............: 2.08v
    DRAM Termination .…0.900V............: Auto
    Channel A Reference 0.900V............: Auto
    Channel B Reference 0.900V............: Auto
    
    Advanced Settings
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Disabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Disabled]
    CPU EIST Function.........................: [Disabled]
    Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Enabled] *Note* Must be enabled to flash from USB
    A site I've made from scratch:


    Computer Specs:
    AMD Phenom II x6 1090T @ 3.655GHz (215x17) (stock volts)
    Gigabyte 890FXA-UD5 (NB @ 2.58GHz, HT @ 2.15GHz) (stock volts)
    G.Skill RipJaws F3-12800CL9D-8GBRL @ 1.72GHz 9-9-9-24-1T 1.65v
    EVGA GTX 275, 2x250GB SATA RAID0, Corsair AX850
    TRUE w/Delta 120x38mm

  9. #139
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    Nice find!

    I'll have to keep that in mind and play with it a bit.

  10. #140
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    Default Re: Help me improve/optimize my EP45-UD3P and Q9550

    It's nice to be able to drop vcore without failing immediately. I don't know if I would call it 100% stable but going from 30 minutes and locking up to 9 hours without problem in Prime large FFT's is definitely an improvement.

    Unfortunately, I can't figure out a way to drop MCH volts, not even 1 notch. I've played with references and the skews but it either locks up loading Windows or locks up immediately upon starting Prime95 large FFT's. I read around and I guess it's not a bad voltage for 8GB of RAM at 1000MHz with super tight timings and a 4GHz quad. I did read that someone had to use 1.46v (1 notch above mine) in order to be stable at 500MHz FSB. I might go there and see if I can get 505 or 510MHz FSB :) What would be a woah-that's-so-bad-turn-off-your-computer voltage for the MCH core? Is 1.44v MCH bad for long-term use?
    A site I've made from scratch:


    Computer Specs:
    AMD Phenom II x6 1090T @ 3.655GHz (215x17) (stock volts)
    Gigabyte 890FXA-UD5 (NB @ 2.58GHz, HT @ 2.15GHz) (stock volts)
    G.Skill RipJaws F3-12800CL9D-8GBRL @ 1.72GHz 9-9-9-24-1T 1.65v
    EVGA GTX 275, 2x250GB SATA RAID0, Corsair AX850
    TRUE w/Delta 120x38mm

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