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Thread: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock




  1. #101
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    OK, missed communication, I was giving you credit for (mostly) knowing what you're doing as you started the thread at 3.60GHz, even if it wasn't fully stable.

    Any voltages that are too high can cause boot problems, instability, and excess heat. Most of the the time there is a range for most voltages that will be tolerated and possibly be reasonably stable. It's very time consuming to optimize all settings at each step as you are overclocking. It's up to you if you want optimize all voltages at each step so that each setting is at or near the lowest stable setting. I save multiple bios profiles along the way as I'm climbing the o/c ladder. In some cases I'll save an unstable profile that I think is close to being stable.

    Your cpu and cpu vcore temperatures look good at 3.16GHz during the Prime95 blend test and are similar to my 3.00GHz Prime95 Blend maximum temperatures. When you adjust for the fact that Core Temp and HWiNFO temperatures are ~ 15o(C) higher than RealTemp's values, everything is in order.

    Suggestion, posted screen-shots with temperature displays should include comments that describe the TjMax values used by each of the temperature monitoring programs. Otherwise people who find the screen-shots while doing image searches will not understand the apparent mismatched temperatures.

    Next:
    Run LinX (or IBT) using as much available free memory as possible, probably 1536MB or 1792MB.
    Running 3 or 5 loops is OK, and save a screen-shot of the completed test which will be your baseline benchmark score. Be sure to include the temperatures at the end of the test.
    Remember my best LinX score is 55+GFlops at 4.0GHz.
    As I recall my 3.0GHz LinX score was ~ 39 GFlops, and IBT usually gives a slightly lower score.
    Be sure to save the HWiNFO log for this test.

    The next step: a 9% overclock
    • cpu = 8.5 x 401MHz = 3.408Ghz
    • ram = 2.0 x 401MHz = 802MHz

    Cpu core voltage will probably require a modest increase, try 1.26875
    The remaining four voltages should be fine with their current +0.10 volt settings.

    There is an alternative to running several long Prime95 stress tests.
    The program is called HCI Memtest and it runs in windows.

    I run it with four simultaneous windows.
    If I have 1800MB of free memory I would allocate 400MB of memory to each test window and let them run until the overall coverage for each window was at least 300% - 500%, longer is better. If there are any reported errors, the test has failed and should be stopped, just like you would if one of the Prime95 worker threads got an error.

    I recently ran each of the three Prime95 tests, one at a time, with each test running for at least 8 hours.
    I'm now going to run HCI Memtest overnight.
    I've used HCI Memtest several times before and it completed with no errors on systems that had previously completed full Prime95 testing.
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  2. #102
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    One last question before I run HCI Memtest at 3.408GHz - should I try without changing the voltage and increase it by a single increment if it fails or just run it straight at 1.26875V?

    I will try to adjust all the thermal monitoring programs to Tjmax=85 and post the results.

    P.S. Sorry if I mislead you with my 3.6 overclock - still feel like an absolute newbie but I'm learning! :)
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

  3. #103
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    Cpu voltage at 3.408GHz
    My 1.26875 recommendation is 5 clicks up from your cpu's "normal" voltage.
    Your current 9% overclock might run with the normal cpu voltage and it might not.
    My preference is to go a bit higher than I think is necessary.
    Even if we had identical hardware, each system will require somewhat different settings.

    Adjusting TjMax in monitoring programs
    Core Temp is very easy to adjust TjMax, but it's window still displayed TjMax = 100, even though the core temps were adjusted.
    I didn't find a TjMax setting in HWiNFO, but I didn't look in the main system information panel.

    HCI Memtest
    I'm running 4 Memtest windows where each task is working with 1200MB out of 5400MB that was originally available.
    My cpu temp is 36o(C) and my average core temps are in the mid 40o(C) range.
    Based on the displayed memory coverage, it will take about one hour to cover 100% of the memory and letting it run for 10 - 12 hours should be an excellent test.

    Check out Minimum Guesses To Find A Number Between 1 and 1000 and understand how the binary search approach works in guessing a number between 1 and 1000 in 10 steps or less. Once you understand how and why this works you can then use a similar approach find the optimal cpu voltage setting.

    Each click up or down is 1/160th of a volt or 0.00625v or 625 one hundred thousandths of a volt..
    For example, to go from 1.25000 to 1.30000 is a change of 0,05 volts or 8 clicks of memory increases.
    I'll let you determine how many clicks it is for memory voltage increases if your cpu eventually needs up to 1.3750 or 1.40000 volts.

    I'm not suggesting that you use the middle of this very large voltage range at any time when you try to determine the voltage, but the splitting the difference approach when using a much smaller voltage range will let you find a better voltage setting much quicker than going up or down one click at a time.

    _ Have I thoroughly confused you yet?
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  4. #104
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    I think I understand!

    I guess I'm just worried about the heat production of the extra voltage. I'll give it a go without any increase and if it fails I will try at 1.26875V as you you suggest. I know that it's not completely necessary to want to find your lowest viable voltage (and memory timings) until you've reached your maximum stable overclock, I'm just unsure about when to reduce the vcore if you think it is the cause of the instability (vcore [and therefore temperature] being too high rather than vcore being too low).

    I'm sure you'll be able to shed some light on this for me!
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

  5. #105
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    This is the main reason to keep logs while stress testing, as we will have a record of temperatures, voltages, cpu utilization that might help pinpoint what might have caused the problem. Windows Event Viewer might also have some useful information when we know the time and date when a problem occurs.

    If another BSOD occurs, we can use WhoCrashed or Blue Screen Viewer to quickly and easily get the major information from saved mini-dumps in your system.

    Both programs are freeware.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
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    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
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  6. #106
    lukevega is offline Member
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    Hopefully this is the last post before testing!

    Available vs free memory - I'm not sure how much to set for each of the 4 tests :s

    Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock-free-memory-jpg

    Also, to change Tjmax in HWiNFO, right-click on a core temp and the bottom option is 'Adjust Tj,max' :)

    and finally - I can't remember if you said anything about the direction my top case fan should be aimed at - It's currently blowing away from the Cooler - at idle it doesn't seem to affect the core temps so may not need it at all (will do some more testing later) but just wondering if you think I should flip it to aim at the cooler?

    Sorry to keep pestering you!
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

  7. #107
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    Available = 2846MB divided by 4 = 711MB minus 71 (10%) = 640MB for each of the four HCI Memtest tasks.
    In HWiNFO, Physical Memory Available, 6th item down from the top of the list will work too.

    Does your top case fan have a filter?
    If not, blowing air down on the cpu heat sink will depost dust and dirt on the cooler.
    I don't recall if you have a side case fan, if not your case has a negative pressure setup which isn't ideal.
    It's also important to have air flow currents through your case that aren't fighting each other.
    Tomorrow is another day for dealing with the top cooling fan.

    Thanks for the HWiNFO TjMax adjustment info, that was too easy, that's why I missed it.

    My HCI Memtest Stress Test Update:

    • elapsed time: 3:15 (hours/minutes)
    • coverage: 305%
    • errors: none
    • max cpu core temps: 48o - 51o(C)
    • average cpu core temps: mid 40os(C)
    • cpu temp: 36o(C)
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  8. #108
    lukevega is offline Member
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    All looking ok so far...

    I can't remember when I started the test but how long should I keep going for?

    Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock-memtest-jpg
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

  9. #109
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    Kept it running :)

    Just stopped it now. Here is a screenshot:

    Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock-memtest-finish-jpg
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

  10. #110
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    Default Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

    It seems the log is too large to send but I'm thinking that since it ran without any errors it might not be needed right now anyways?

    I didn't have to change the vcore :)

    Is next test 3.6 - what is the best FSB and multiplier setting for this again? I might just go ahead and keep the vcore at 1.23750V and see what happens!
    GA-EP45-UD3P 1.0, Intel Xeon X5470, 4x2GB Kingston HyperX DDR2 1066, NVidia Geforce 8800GTS 512, Kingston V300 240GB, Noctua NH-U12P with 2x Noctua NF-P12 Push-Pull, Corsair HX520W, Antec P182, Windows 7 64-bit

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