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Thread: OC Q9550 on EP45-UD3P GSkill ram @3.8




  1. #1
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    Default OC Q9550 on EP45-UD3P GSkill ram @3.8

    Hello LSDMEASAP and everyone. This is my first time overclocking and I am looking for advice on bios settings. I have q9550 C1 and it seems to be somewhat stable so far at 3.8 (450 x 8.5). It is running 7.5+hours now of Prime95 small (finally! ). I dont know how stable the ram is yet...will test later. Thank you much.


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: AUTO
    CPU Clock Ratio ...........................: 8X
    Fine CPU Clock Ratio.....................: +0.5
    CPU Frequency ............................: 3.82GHz (450x8.5)

    Clock Chip Control

    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 450
    PCI Express Frequency (Mhz) ........: 100
    C.I.A.2 ........................................: [Disabled]

    Advanced Clock Control
    CPU Clock Drive...........................: 900mV
    PCI Express Clock Drive...............: 900mV
    CPU Clock Skew (ps)....................: 50ps
    MCH Clock Skew (ps)...................: 0ps

    DRAM Performance Control
    Performance Enhance....................: [STANDARD]
    Extreme Memory Profile X.M.P. ......: [Disabled]
    (G)MCH Frequency Latch................: [400]
    System Memory Multiplier .............: [2.00D]
    Memory Frequency (Mhz) ..............: [900]
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 15

    Advanced Timing Control
    tRRD...........................................: 5
    WTR............................................: 6
    tWR.............................................: 6
    tRFC............................................: 65
    tRTP.............................................: 6
    Command Rate (CMD) ..................: 2

    Driving Strength Profiles
    Driving Strength ............................: 800 MHz
    Channel A
    Static tRead Value.........................: 11
    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
    Dimm2 Clock Skew Control...............:Auto

    Channel B
    Static tRead Value............................: 11
    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
    Dimm2 Clock Skew Control...............:Auto

    Motherboard Voltage Control
    Voltage Type.……...…... Manual

    CPU

    CPU Vcore….…….. 1.38125 (1.296 in EZTune HW Monitor)
    CPU Termination....... 1.360
    CPU PLL…………………... 1.500V
    CPU Referen.………….. .931 (.830 in EZT)

    MCH/ICH

    MCH Core…………….... 1.360
    MCH Reference….….. .941 (.840 in EZT)
    MCH/DRAM Ref.….... 1.04 (.900 in EZT)
    ICH I/O……………….... 1.570
    ICH Core…………...….. 1.200

    DRAM
    DRAM Voltage ……........ 2.08
    DRAM Termination ...... 1.04
    Channel A Reference.... 1.04
    Channel B Reference.... 1.04


    Advanced Settings

    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect.............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Disabled]
    C2/C2E State Support.....................: [Disabled]
    C4/C4E State Support.....................: [Disabled]
    CPU Thermal Monitor ......................: [Enabled]
    CPU EIST Function..........................: [Disabled]
    Virtualization..................................: [Disabled]

    Integrated Peripherals
    Legacy USB Storage Detect .............: [Enabled]
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  2. #2
    Chucko is offline Member
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Nice work so far! What are your CPU and MCH temps? Did you brute-force overvolt it to get to this point or are those the lowest stable voltages?

    Static Trd looks kinda high for 5-5-5-15, but since I'm a fellow n00b I'll let the real experts tell you how to get it lower.

  3. #3
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Hi Chucko! This is the first combination of settings I have found to be prime-stable but I would like to lower the temps some if possible. Core one hitting around 65 and core 2,3,4 around 60. I dont know about the NB temps. Hopefully it can be tweaked down some. Thanks.
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    25,940

    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    can you use less Vtt? For sure you can lower many of those memory timings now, that should for sure be stable ram as it is very loose timings

    If you are just trying to bring down temps you will need to lower voltages, I would start with Vtt a bit, then try on Vcore. MCH ref can come down as well, try .68%-.72%, wont affect temps much but you are using way more then you need

  5. #5
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Thanks for your time LSDMEASAP... I don't know how you manage to help so many people.
    You are much appreciated. After another day and a half trying to lower my cpu Vcore,
    I am back where I started with it (1.3875). Core one tops out about 65 degrees.

    Q. The System temp reported in EZTune HW Monitor... is that the northbridge chip?
    Q. When voltages are recommended. are they the BIOS settings or the run-time voltages reported in EZTune?
    Q. Is there a relationship between CPU core and MCH core or is it trial and error?
    Q. Does a system freeze point to any particular area, ie memory, cpu, mch settings? How about BSOD? System reboot?

    I know you are busy and these are noob questions but thank you for any advice.

    Here is where I am now...

    MB Intelligent Tweaker(M.I.T.)

    Robust Graphics Booster ......: AUTO
    CPU Clock Ratio ..............: 8X
    Fine CPU Clock Ratio..........: +0.5
    CPU Frequency ................: 3.82GHz (450x8.5)

    ******Clock Chip Control
    >>>Standard Clock Control
    CPU Host Clock Control........: [Enabled]
    CPU Host Frequency (Mhz) .....: 450
    PCI Express Frequency (Mhz) ..: [100]
    C.I.A.2 ......................: [Disabled]

    >>>Advanced Clock Control
    CPU Clock Drive...............: [800mV]
    PCI Express Clock Drive.......: [900mV]
    CPU Clock Skew (ps)...........: [50ps]
    MCH Clock Skew (ps)...........: [0ps]

    ******DRAM Performance Control
    Performance Enhance...........: [STANDARD]
    Extreme Memory Profile X.M.P. : [Disabled]
    (G)MCH Frequency Latch........: [400]
    System Memory Multiplier .....: [2.00D]
    Memory Frequency (Mhz) .......: 900
    DRAM Timing Selectable .......: [Manual]

    >>>Standard Timing Control
    CAS Latency Time..............: 5
    tRCD .........................: 5
    tRP'..........................: 5
    tRAS..........................: 15

    >>>Advanced Timing Control
    tRRD..........................: 4
    tWTR..........................: 4
    tWR...........................: 8
    tRFC..........................: 62
    tRTP..........................: 4
    Command Rate (CMD) ...........: 2T

    Driving Strength Profiles
    Driving Strength (CH A & B)...: 800 MHz

    Channel A
    Static tRead Value............: 10
    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
    Dimm2 Clock Skew Control.:Auto
    DDR Write Training............: [auto]

    Channel B
    Static tRead Value............: 10
    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
    Dimm2 Clock Skew Control.:Auto
    DDR Write Training............: [auto]

    ******Motherboard Voltage Control

    Voltage Type.........: Manual

    >>>CPU
    LLC..................: Disabled
    CPU Vcore............: 1.3875 (1.296/load in EZTune HW Monitor)
    CPU Termination......: 1.320
    CPU PLL..............: 1.500V
    CPU Ref..............: .906 (.830 in EZT) (68.6% Vtt = .906)

    >>>MCH/ICH
    MCH Core.............: 1.34
    MCH Ref..............: .916 (.840 in EZT) (69.4% Vtt = .916)
    MCH/DRAM Ref.........: 1.04 (.900 in EZT)
    ICH I/O..............: 1.570
    ICH Core.............: 1.200

    >>>DRAM
    DRAM Voltage ........: 2.08 (2.064/load in EZT)
    DRAM Termination ....: 1.04 (.900 in EZT)
    Channel A Ref........: 1.04 (.900 in EZT)
    Channel B Ref........: 1.04 (.900 in EZT)
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  6. #6
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Thanks for the kind words man! I do try my best to keep up with everything, some days though as you know can get me very behind

    65C is not too bad for a Load temp, do keep in mind you never run your system that hot anyway except under full load stress tests

    System temp is the board temp, close to the NB but no it is not the MCH Chip temps. There is no sensor for that only your finger on the NB heatsink when the system is under stress testing. If you cant keep your finger on it for more then 10 seconds then it is too hot

    Before I answer your voltage question I have to tell you this. Easytune ONLY reports the actual voltages you set in the BIOS, you will need to use everest to see other voltages at idle and load. You can use CPU-z to watch idle and load CPU Voltages though very easily

    When you see recommended voltages by me they are often optimal ranges, with higher being the upper limit of what is safe. Now when it comes to CPU Vcore, I usually recommend voltage ranges based on what may be needed as a actual shown in CPU-z. What you need to get stable may be a much higher voltage setting in the BIOS as depending on your board you may have a large vdrop and vdroop.

    If you are unaware of these things, Vdrop is what voltage you get at Idle shown in CPU-z Vs. what you set in the BIOS and Vdroop is what you get from that Idle Voltage Vs. what you get under full load shown in CPU-z. These are per Intel Design

    MCH Core and CPU core, yes are kinda related in the sense your FSB is controlled by the MCH and controls CPU Speeds. But mainly if your CPU is unstable it is due to CPU ralted voltages and not MCH unless you do have that set to low to begin with. So, yes in a way alot of trial and error with some thought put into it. More MCH is needed based on what strap/multi you are using, ow much ram you have, and FSB Speed. But mainly the ram factors mentioned there

    Q. Does a system freeze point to any particular area, ie memory, cpu, mch settings? How about BSOD? System reboot?
    Could be anything, even driver and programs or spyware/viruses. And of course yes all or any one of the above. If you are getting BSOD's knowing the error # (0x000000) or the name of the BSOD (Such as Bad_Pool_Header or IRQ_Not_Equal_To_Or_Less_Than) that helps alot. Those mentioned above are very often ram related

    As for your settings as of now I would make these changes myself testing for stability as you go >>>

    CPU Clock Skew (ps)...........: [50ps] << I would be coming off this at your low FSB, should only be needed at 533+ FSB and even then likely does more harm then good. I used to think this and the below helped but have since found otherwise

    MCH Clock Skew (ps)...........: [0ps]

    ******DRAM Performance Control
    Performance Enhance...........: [STANDARD]
    Extreme Memory Profile X.M.P. : [Disabled]
    (G)MCH Frequency Latch........: [400] Auto
    System Memory Multiplier .....: [2.00D]
    Memory Frequency (Mhz) .......: 900
    DRAM Timing Selectable .......: [Manual]

    >>>Standard Timing Control
    CAS Latency Time..............: 5
    tRCD .........................: 5
    tRP'..........................: 5
    tRAS..........................: 15 << Try 12

    >>>Advanced Timing Control
    tRRD..........................: 4 << 3 should work fine
    tWTR..........................: 4 << 3 may work
    tWR...........................: 8 << 5-7 should work fine
    tRFC..........................: 62 << 52-54 should work fine
    tRTP..........................: 4 << 3 should work fine
    Command Rate (CMD) ...........: 2T

    Driving Strength Profiles
    Driving Strength (CH A & B)...: 800 MHz << you may have better luck with 1066, I know I do even at 800Mhz

    Channel A
    Static tRead Value............: 10 << This can for sure come down to 8-9 depending on ram quality. 9 Should for sure work

    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
    Dimm2 Clock Skew Control.:Auto
    DDR Write Training............: [auto]

    Channel B
    Static tRead Value............: 10 << This can for sure come down to 8-9 depending on ram quality. 9 Should for sure work

    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
    Dimm2 Clock Skew Control.:Auto
    DDR Write Training............: [auto]

    ******Motherboard Voltage Control

    Voltage Type.........: Manual

    >>>CPU
    LLC..................: Disabled
    CPU Vcore............: 1.3875 (1.296/load in EZTune HW Monitor)
    CPU Termination......: 1.320 << You should be able to use less, but maybe not with quad. I would be trying to get at 1.22-1.28

    CPU PLL..............: 1.500V
    CPU Ref..............: .906 (.830 in EZT) (68.6% Vtt = .906)

    >>>MCH/ICH
    MCH Core.............: 1.34 << I would shoot for 1.22-1.24 as 1.34 is for sure not needed and can cause instability for sure

    MCH Ref..............: .916 (.840 in EZT) (69.4% Vtt = .916)
    MCH/DRAM Ref.........: 1.04 (.900 in EZT)
    ICH I/O..............: 1.570
    ICH Core.............: 1.200

    >>>DRAM
    DRAM Voltage ........: 2.08 (2.064/load in EZT)
    DRAM Termination ....: 1.04 (.900 in EZT)<< I would get all these back on Auto (.5%) in the BIOS (You will have to set dram voltage back to 1.8V then lower these back to .9)

    Channel A Ref........: 1.04 (.900 in EZT)<< I would get all these back on Auto (.5%) in the BIOS (You will have to set dram voltage back to 1.8V then lower these back to .9)

    Channel B Ref........: 1.04 (.900 in EZT) << I would get all these back on Auto (.5%) in the BIOS (You will have to set dram voltage back to 1.8V then lower these back to .9)

  7. #7
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    Jan 2009
    Posts
    21

    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Excellent post. This is the same exact setup I have,

    Same motherboard, memory and CPU Fan.

    My temps with Everex is tad different however. 51, 45, 48, 49

    I used a Xigmatic cpu mounting bracket instead of the plastic pushpins.

    Here's my setup.

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:..5
    CPU Frequency ...........................: 3.82 x 450 x 8.5


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 450 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)....................:0
    MCH Clock Skew (ps)...................: 50


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [400]
    System Memory Multiplier ..............: 2.00D
    Memory Frequency (Mhz) ..............: 900
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................12


    Advanced Timing Control
    tRRD...........................................3
    tWTR.......................................... 3
    tWR............................................5
    tRFC...........................................52
    tRTP...........................................3
    Command Rate (CMD) ....................:2

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

    Channel A
    Static tRead Value.........................:9 (<=8 won't post)
    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.........................:9 (<=8 won't post)
    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
    Voltage Type.………... Manual
    CPU
    CPU Vcore….……….........................:1.275
    CPU Termination…..... 1.200V*.......: 1.200
    CPU PLL…………………....1.500V*.......: 1.500v

    CPU Referen.…………....0.755V*.......: Auto

    CPU Reference2………,,0.800V*.......:Auto

    MCH/ICH
    MCH Core…………….....1.100V...........: Auto
    MCH Reference….…….0.800V...........; Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.550V............: Auto
    ICH Core…………...……1.100V............: Auto

    DRAM
    DRAM Voltage ……....1.800V............: 2.100v
    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............: [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]

    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled]

    Q9550 E0
    GA-EP45-UD3P bios F6
    2x2GB G.Skill 1066 http://www.newegg.com/Product/Produc...82E16820231166
    Last edited by Signal9; 01-13-2009 at 09:18 AM. Reason: Add Details

  8. #8
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    LSDMEASP Thank you very much for that lengthy reply. You are right on with the memory settings. Appreciate the hard work.


    Thanks for posting that Signal9... I was wondering what your settings were. I am trying to tighten my memory settings now... getting close to what you have. I know I won't be able to lower my CPU Vcore though. Maybe that is the difference between the C1 step and the E0 step.... E0 less voltage?
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

  9. #9
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Next questions, once you stabilize your cpu oc speed and get your memory tight, whats next time?

    Buy faster DDR2 memory?

    Bump OC on Cpu to 4 ghz?

    With the current specs of both our riggs, is the most we can expect?

  10. #10
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    Default Re: OC Q9550 on EP45-UD3P GSkill ram @3.8

    Lol I would like to go for 4..... I am pushing 1.31 v CPU Vcore so I have some to play with but it is the heat that is concerning me most. After I reseat the HSF with better thermal paste and double-check my thermal paste application method I will probably try for 4ghz. I need to find a faster way to check stability :)
    Q9550 C1 step
    GA-EP45-UD3P bios F7a
    2x2GB G.Skill 1066
    http://www.newegg.com/Product/Produc...82E16820231166
    OCZ Vendetta II HSF
    MSI R4830 video
    HAF-932 case
    XP Home SP3

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