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Thread: Q9550 and ep45t-extreme 500 FSB stable and beyond




  1. #1
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    Default Q9550 and ep45t-extreme 500 FSB stable and beyond

    Hi guys


    im trying to get my new mb more than windows stable at 500fsb, so far all but vcore and vram are at auto (newb here)
    nice 500fsb out of box btw on auto



    Both ram and cpu ran 2000Mhz, 4.45Ghz in evga board, so i know they are way under limits atm..

    Im noob at p45 OC'ing Plz Plz toss some guru wisdom my way.

    Atm i can superpi np, but prime95 fails badly

    Peace out
    Slowmo
    Gigabyte EP45T-EXTREME, Q9550@4.25GHz 500FSB, 2x2GB OCZ Platinum PC3-1600 (2000Mhz), ATI 4870 OC'ed, Enermax Galaxy 750W, 2x60GB OCZ Core2 SSD.
    Cooling : Ek Supreme Acetal, Laing D5, Thermochill PA120.2, XSPC Res

  2. #2
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    running at 8.5 x now yes?
    my own ram wont run above 1020 reliably.but im pretty close to the max I think on the Q8200 anyway.
    However if you are going to keep going on auto a little to see what you can get stable,1.46v on cpu.since its ddr3.dunno on settings.
    I havent seen many.well any really, quads running 530+ fsb on air on the board.
    Way under limits doesnt mean ,I think, that they are gonna go happy all the way to:
    Lemme see what would 4.45ghz be at 8x, 550fsb approx?
    Im sure some do,and maybe the ddr3 users have np but high voltages needed on cpu and mch seem to be a block.
    With water it seems to be voltages again..1.47.. 1.6 mch and all that :)
    Going to have to start adjusting Pll and vTT around now as well,maybe lsd or someone using ddr3 on it will have some settings/advice.
    Oh hey add your bios settings to the post,even if most of them are on auto.
    There are templates for that around in the posts.
    You of course wont need to push your fsb to max the cpu,I would:)
    Heres some o/c testing on the board,or at least giga 45 ud3 series.
    One has the cpu "under water" :)

    GIGABYTE GA-EP45-UD3P OC Reivew

    Gigabyte P45 UD3 review - AwardFabrik - Forum

    Actually check this out too..
    http://www.xtremesystems.org/forums/...205132&page=11

    yeh I had it on favorites.for the entertainment value.
    Last edited by kick; 03-14-2009 at 07:03 AM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    Do not use AUTO for voltages, especially Vtt (termination) and PLL

    Please give me a link to your ram and I can help ya

    Also give me what settings you are using now and i will advise back >>>

    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 ...............: Auto or Fast
    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...........................: <<< 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 ..............: 
    Memory Frequency (Mhz) ..............: 
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................
    tRCD .........................................
    tRP'...........................................
    tRAS..........................................
    
    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...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................
    tRTP...........................................
    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….……….........................:Auto if not overclocking, if you are overclocking please do find and set your own voltages
    
    CPU Termination…..... 1.200V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking
    
    CPU PLL…………………....1.500V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking
    
    CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly 
    
    CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly 
    
    MCH/ICH
    MCH Core…………….....1.100V...........: << 
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.500V............: <<< 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

  4. #4
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    hi Lsdmeasap my ram are these OCZ Technology | Products | Memory | OCZ DDR3 PC3-16000 Platinum Edition
    im running 8x multi atm for cpu stability..

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto 
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 4.00ghz
    
    
    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)....................: 0 
    MCH Clock Skew (ps)...................: 0
    
    
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............:3.33D
    Memory Frequency (Mhz) ..............: 1667 mhz
    DRAM Timing Selectable ................: [Auto]
    
    Standard Timing Control
    CAS Latency Time........................ AUTO
    tRCD ......................................... AUTO 
    tRP'........................................... AUTO 
    tRAS..........................................AUTO 
    
    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) ....................:AUTO
    
    Driving Strength Profiles
    Driving Strength ............................AUTO
    
    Channel A
    Static tRead Value.........................:AUTO
     tRD Phase0 Adjustment...................:Autol
    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 <<< 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….……….........................:1.450v
    
    CPU Termination…..... 1.20V*.......: 1.36 << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking
    
    CPU PLL…………………....1.500V*.......:1.6 << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking
    
    CPU Referen.…………....0.755V*.......: auto<<< .64% Of Vtt (Termination above) Auto Will set this correctly 
    
    CPU Reference2………,,0.800V*.......: auto <<< .67% Of Vtt (Termination above) Auto Will set this correctly 
    
    MCH/ICH
    MCH Core…………….....1.100V...........: auto 
    MCH Reference….…….0.800V...........; auto
    MCH/DRAM Ref.…......0.900V...........: auto
    ICH I/O……………….....1.500V............: auto
    ICH Core…………...……1.100V............: NA
    
    DRAM
    DRAM Voltage ……....1.800V............: auto
    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] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB
    plz help me get off all the auto stuff
    Gigabyte EP45T-EXTREME, Q9550@4.25GHz 500FSB, 2x2GB OCZ Platinum PC3-1600 (2000Mhz), ATI 4870 OC'ed, Enermax Galaxy 750W, 2x60GB OCZ Core2 SSD.
    Cooling : Ek Supreme Acetal, Laing D5, Thermochill PA120.2, XSPC Res

  5. #5
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    this oc is stable for anything but prime95. been gaming for several hours, running several benchmarks aswell (everest,3dmark+ others)
    Gigabyte EP45T-EXTREME, Q9550@4.25GHz 500FSB, 2x2GB OCZ Platinum PC3-1600 (2000Mhz), ATI 4870 OC'ed, Enermax Galaxy 750W, 2x60GB OCZ Core2 SSD.
    Cooling : Ek Supreme Acetal, Laing D5, Thermochill PA120.2, XSPC Res

  6. #6

    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    CPU Vcore….……….........................:1.450v

    Intel® Core™2 Quad Processor Q9550 - SLAWQ
    says smething about VID voltager range.
    How long did you use your CPU ?

  7. #7

    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    Failing prime95 means your oc is NOT stable.

  8. #8
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    < Comers :The VID voltage range mentioned in the intel link isnt something telling you what are the maximum or minimum voltages to put into your Vcore setting.
    If you open a similar link to any quad core/dual core 45nm processor that voltage range says the same thing I believe.
    If we limited our Vcore setting to 1.36 ,we ,well some of us wouldnt be able to overclock much.

    From my understanding its more the voltage your individual cpu will need to operate at stock settings.
    I think they show that range so that mbrd manufacturers have to ensure their boards can provide voltages in that range or if you are buying a cpu that your mbrd can provide those voltages.

    It would seem that if your particular VID is low you should be able to o/c it a lot or if its high you could have received one from a batch that wasnt great.
    I dont think thats all there is too it tho.

    If you check into the data sheets for each 45nm 775 processor type the recommended Vcore max is around 1.45 for quads and 1.46 for duals,i think.
    On air cooling (people say) you shouldnt go over 1.45 on quads or 1.46 on duals ,actually some say 1.42v on quads and 1.45v on duals for long life,depends how good your cooling is.
    the temperatures are going to go up rapidly anyway.

    Also on this mbrd UD3 the voltage entered in bios isnt going to be what the cpu runs at,mine in bios is 1.39375.. voltage running is more like 1.37.And yes Ive been a and had the cpu Vcore in bios at 1.47v+ ,when it was already stable at a lwr v just to test how hot it would get under load.

    Slowmo also has water cooling ,this allows lower temperatures on the cpu at higher voltages,and if hes had the cpu at 4.45Ghz before I dont imagine he was holding back on the voltage.

    Maybe all that is covered in the o/c posts above or in other members sig links etc,oh well.
    Last edited by kick; 03-15-2009 at 03:19 PM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  9. #9

    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    I cannot find anything that says 1.45V for 45nm Quads is the max safe Vcc.
    My understanding is that 1.45V is the absolute maximum (including overshoot), so
    there is no performance gain over 1.45V.
    The CPU killers are 1. High voltage and 2. High Temperature in that order
    meaning that voltage kills chips faster then temps do.
    You may decrease the temps but the voltage remain, no?
    (There is of course vDrop but it varies depending on the CPU load)

    If Slowmo is aware of that - no problem. Maybe he just wants to see the limit
    or he is going to use it 24/7.

    Someone said it very well:
    QUOTE
    Going over the max vcore 24/7 will degrade the chip's lifespan at a much faster rate than keeping within the max vcore.

    No it will probably not 'fry' instantly but you may only get a few months of use if that, when running a chip over it's MAX recommended Vcore.

    Most people will raise their vcore over the limit to get a desired overclock for benching and then drop the vcore back down after the benchmark is over.

    Even doing this every once in awhile is going to degrade the chip but not as quickly or as much as trying to game/run 24/7 over the max vcore.

    Some super high overclocks can be achieved by pushing voltages way way up over max vcore provided that extreme cooling is used (phase, nitrogen, dry ice) but those chips rarely last longer than a few bench tests, then they're just dead.

    You'll also get to a point where no matter how much voltage you pump into a CPU, it just won't go any higher because the physical design is not ment / can't handle extreme voltages and overclocks.

    If you're gaming, just find the max overclock at the max recommended voltage - and make sure you're stable with Prime95 or OCCT. That way you'll get the most performance and lifespan from your chip.
    UNQUOTE

  10. #10
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Q9550 and ep45t-extreme 500 FSB stable and beyond

    Yeh well maybe its a DO NoT Exceed! recommended max.
    For sure Im not recommending everyone push voltages to the limit.
    Get your speed stable at lowest voltages possible n all that,
    But the "waterboys" seem to go a lot higher in search of the "max stable holy grail".
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

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