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Thread: GA-EP45-UD3P - Won't boot with 450FSB




  1. #281
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Also take into consideration that altering one skew may force you to have to alter another skew. It is indeed designed to alter the timing of the clock signal along the bus in relation to other signals.

    After a certain point, although all copper traces are lengthed accurately to a certain frequency limit, at higher clocks, signals might not get there at the right time. Altering skew is a great way of trying things you couldn't get stable before. Try using it in conjunction with clock drive settings.

    My method is similar. I then start with CPU Clock drive at 700 and I try all possible combinations of skew up to 350, ie 50-0, 50-50, 50-100.........50-350, 100-50, 100-100, 100-150 etc etc. I then start with CPU Clock drive at 800 and repeat, then 900 and lastly 1000. There's also PCIE clock drive to try, and combo's of PCIE drive and CPU drive. It can take a while to say the least.

    I record successful full boots to windows only at this point. After all combinations are tried, I go into windows with the combo's that let me and run 3 runs of IBT. Ones that Pass get Prime tested on Large FFT. If any fail either instantlt or at less than 2 hours, I will reduce MCH Ref from 0.760 to 0.740 and repeat, if fails again I try 0.720. This is repeated until all options have been tested. Taking the longest lasting from the Prime95 runs, I then try an increase in Vcore. Then if no improvement, a 3 tic increase in Vcore, if no improvement I take Vcore down 2-3 ticks and play with Vtt at all possible combinations. Followed lastly by a change of MCH Core.

    I've gotten some good results on things I'd never have gotten stable before, however theactual 100% stable findings have been less.
    Last edited by Psycho101; 06-20-2009 at 05:39 AM.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  2. #282
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Quote Originally Posted by Psycho101 View Post
    Also take into consideration that altering one skew may force you to have to alter another skew. It is indeed designed to alter the timing of the clock signal along the bus in relation to other signals.

    After a certain point, although all copper traces are lengthed accurately to a certain frequency limit, at higher clocks, signals might not get there at the right time. Altering skew is a great way of trying things you couldn't get stable before. Try using it in conjunction with clock drive settings.
    Thanks.I will keep that in mind. I have set both of mine to 1000. Does that seem to high for a Quad?
    Intel i7 920 D0 @ 4.2Ghz+HT 1.36V / Gigabyte EX58-UD4P / G-Skill 3x2 gig DDR 2133 PERFECT STORM / MSI 5870 1GIG / Corsair HX1000 Watt/ CM Stacker 830 /
    Cooled By: Swiftech Apogee GTZ /Swiftech MCR-320 /1/2" ID Feser Flexible PVC Tubing /Swiftech MICRO Rev2 Reservoir /Swiftech MCP655 variable/Thermalright HR-05-ifx

  3. #283
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    You need to try all combinations. Try 700 first, then 800, 900,1000 while changing your skews aster each clock drive bump.
    Last edited by Psycho101; 06-20-2009 at 07:26 AM.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  4. #284
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Quote Originally Posted by jonathankru View Post
    Thanks.I will keep that in mind. I have set both of mine to 1000. Does that seem to high for a Quad?

    Both of what?
    Antec P180 case
    Intel E8500 E0 Stepping
    Gigabyte GA-EP45-UD3P rev 1.1 BIOS F10j
    Thermalright Ultra eXtreme 120!! Do NOT try and save a few bucks with your cooler.
    Crucial Ballistic PC6400 cas 4 memory 2 x 2G
    2 x WD Black Edition 640G 32Megs cache 7200RPM
    XFX Geforce 260/216 Black Edition
    Corsair TX650W
    Running on 64 bit Win 7 (AHCI mode)

  5. #285
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    CPU and PCIe clock drive.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  6. #286
    Join Date
    May 2009
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    East Coast USA
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Quote Originally Posted by Psycho101 View Post
    Also take into consideration that altering one skew may force you to have to alter another skew. It is indeed designed to alter the timing of the clock signal along the bus in relation to other signals.

    After a certain point, although all copper traces are lengthed accurately to a certain frequency limit, at higher clocks, signals might not get there at the right time. Altering skew is a great way of trying things you couldn't get stable before. Try using it in conjunction with clock drive settings.

    My method is similar. I then start with CPU Clock drive at 700 and I try all possible combinations of skew up to 350, ie 50-0, 50-50, 50-100.........50-350, 100-50, 100-100, 100-150 etc etc. I then start with CPU Clock drive at 800 and repeat, then 900 and lastly 1000. There's also PCIE clock drive to try, and combo's of PCIE drive and CPU drive. It can take a while to say the least.

    I record successful full boots to windows only at this point. After all combinations are tried, I go into windows with the combo's that let me and run 3 runs of IBT. Ones that Pass get Prime tested on Large FFT. If any fail either instantlt or at less than 2 hours, I will reduce MCH Ref from 0.760 to 0.740 and repeat, if fails again I try 0.720. This is repeated until all options have been tested. Taking the longest lasting from the Prime95 runs, I then try an increase in Vcore. Then if no improvement, a 3 tic increase in Vcore, if no improvement I take Vcore down 2-3 ticks and play with Vtt at all possible combinations. Followed lastly by a change of MCH Core.

    I've gotten some good results on things I'd never have gotten stable before, however the actual 100% stable findings have been less.
    Dang Psycho101! I'm not sure I have the patience to add another two variables into the mix! My friend already taunts me for spending more time on working on overclocking than on actually "using" my computer. I counter with Ut3 is not just for stability testing!!

    -devoh
    Antec P180 case
    Intel E8500 E0 Stepping
    Gigabyte GA-EP45-UD3P rev 1.1 BIOS F10j
    Thermalright Ultra eXtreme 120!! Do NOT try and save a few bucks with your cooler.
    Crucial Ballistic PC6400 cas 4 memory 2 x 2G
    2 x WD Black Edition 640G 32Megs cache 7200RPM
    XFX Geforce 260/216 Black Edition
    Corsair TX650W
    Running on 64 bit Win 7 (AHCI mode)

  7. #287
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Devoh, your friend does kinda have a point. You have to ask yourself what you intend to use your computer for and what realistic goal you want for your overclocked computer. Take myself for example. For box 1, I had a clear goal of 4ghz stable, at the lowest voltages across the board. After achieving it, it allowed me to get more familiar with the mobo and the bios settings. With all the testing and primathon runs, it was taking away too much time away of actually using that computer for what I normally use it for. Once my goal was reached the box was put to work. For box 2, I had even less of a need for a higher cpu speed than 4ghz but since I had a lower vid cpu than my first, I set a higher goal mostly to satisfy my curiosity about the 2nd cpu. I also was curious to see if there were any real and usable benefits of a higher fsb and overall oc'ed speed for box 2. So away I went with the testing. However, with all the testing and primathon runs it was again taking way too much time away from actually using box 2. I originally had a more ambitious goal of 533x8.5 and 500x9, but then I realized that trying to achieve those goals required too much voltages, and would only introduce more problems with dealing with the added heat, and noise. Hence I stopped it at 500x8.5 as it provided a good balance. I then put box 2 to work and started enjoying the computer for what I had purchased it for. No regrets.

    Of course, there are those who must find out the limits of their gear and there is absolutely nothing wrong with that. However, there comes a point between reality and your oc aspirations; time spent testing your computer and time using your computer. Yes, you are playing some runs of UT3, while testing, but are you really enjoying your computer for what you bought this computer for? Be honest with yourself and then proceed accordingly.

    All the best.
    1) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @445x9@1.2625v bios, TRUE 120, Scythe UltraKaze 44cfm, 4x2gb GSkill 8500, Visiontek 3870, Corsair TX850, Antec 900, Win7-64 Home.
    2) Gigabyte EP45-UD3P (rev 1.1, bios F9) E8400 @500x8.5@1.2875v bios, TRUE 120, Schythe UltraKaze 44 cfm, 4x2gb Buffalo FireStyx 8500, XFX 5770, Corsair AX850, CM Scout, WinXP Pro/Win 7-64 Home.
    3) Gigabyte P55A-UD4P (rev 1.0, bios F5) i5 750 @190x20@1.30625v bios, CM Hyper 212+, 4x2gb G.Skill Ripjaw 1600, 7900GS, Corsair TX750, CM Scout, Win7 Pro-64.
    4) Asus P8Z68-V Pro (bios 0801), i5-2500K @44x100@1.248v cpuz, Megahalem rev.B, 4x4gb GSkill Sniper 1600, Corsair AX850, Antec 902, Corsair Performance 3 128GB, Win7-64 Home.


  8. #288

    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Does anyone know if the CPU Fan header could cope powering two Noctua NF-P12's using one of these?

    * CPU: Intel i7-3770K @ Stock * Cooling: Corsair H80i / Noctua NF-F12 x2 * MoBo: Gigabyte GA-Z77X-UD5H (Rev. 1.1 - BIOS F16 Mod16) * RAM: Crucial 1600MHz DDR3 32GB (4x8GB) *
    * GPU: Intel HD 4000 (768MB) * Mon 1: Dell U2410 (A07) * Mon 2: Panasonic TX-P55VT50B * Cam: Logitech C910 HD * BD: Pioneer BDR-208DBK * HD 1: Crucial SSD M4-CT256M4SSD2 256GB *
    * HD 2: Western Digital Caviar Green 3TB * IR: Apple Infrared Board 922-7195 * WiFi & BT: Apple Broadcom BCM94360CD (802.11 a/b/g/n/ac - Bluetooth 4.0 * PSU: Seasonic M12 - 600W *

  9. #289
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    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    Yes, easily. Two Noctuas draw minimal power. I would cover the exposed pin on the fitting farthest away in that photo, for safety reasons, or pull the pin out all together. Other than that, you'll definitely be OK.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  10. #290

    Default Re: GA-EP45-UD3P - Won't boot with 450FSB

    You see my thinking psycho101, that way if I wanted I could control their speed via the BIOS.

    I will stick some heatshrink tubing on the exposed pin if there is one (Have to collect one from Maplin tomorrow).

    Going to watch Transformers 2 in IMAX now...
    * CPU: Intel i7-3770K @ Stock * Cooling: Corsair H80i / Noctua NF-F12 x2 * MoBo: Gigabyte GA-Z77X-UD5H (Rev. 1.1 - BIOS F16 Mod16) * RAM: Crucial 1600MHz DDR3 32GB (4x8GB) *
    * GPU: Intel HD 4000 (768MB) * Mon 1: Dell U2410 (A07) * Mon 2: Panasonic TX-P55VT50B * Cam: Logitech C910 HD * BD: Pioneer BDR-208DBK * HD 1: Crucial SSD M4-CT256M4SSD2 256GB *
    * HD 2: Western Digital Caviar Green 3TB * IR: Apple Infrared Board 922-7195 * WiFi & BT: Apple Broadcom BCM94360CD (802.11 a/b/g/n/ac - Bluetooth 4.0 * PSU: Seasonic M12 - 600W *

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