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Thread: Core i7/X58 Overclocking Thread

  1. #501
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    I was thinking to go for 6 gb(3x2GB) Dominators @ 1600. Will it be a problem to run 6 GB of ram on 32 bit OS, as I know - it will only show 3 GB inside OS.

    I am going to load 2 OS:
    1. Win XP 32 bit (For work purpose - I need Sql 2000 32 bit and I cant spend $3k+ on SQL 2000 64bit Ver)
    2. Vista Business Edition 64bit and run VMWare inside it to have Xp 32 Bit as guest OS.



    Thanks.
    I7 - Batch - Overclocking Sheet

    Current Rig Specs :
    I7 920 @ (19x205) 3.89 Ghz @ 1.26 Idle & 1.248 Load - Batch 3841A431
    Gigabyte UD5 on F5e
    Corsair Dominator 3 x 2GB (1600 Mhz)
    Evga GTX 260 216 SP
    Coolermaster RP-850Watt
    WD 500GB SATAII 3.0GBPS
    Scythe Mugen 2(Server specs for Online Dating
    )

  2. #502
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    Alright, why is 1600 supposed to be a better OC'er than a 1333 with tighter timings? Could somebody explain to me how these two would OC differently?

  3. #503
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    I was reading Saaya's Nehalem 101 thread and it stated that if you have a Extreme Edition you can simply raise the multi and oc the CPU that way without fiddling the BClock, is there a decrease in performance from doing this?

    Also with DDR3-1600 ram, how does the 133 freq mutliply to DDR3 1600?

  4. #504
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    Quote Originally Posted by btdvox View Post
    Also with DDR3-1600 ram, how does the 133 freq mutliply to DDR3 1600?
    Its uses the x12 multiplier for the memory?

    i7| EX58-EXTREME | SSD M225 | Radbox | 5870CF + 9600GT

  5. #505
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    Quote Originally Posted by icecold316 View Post
    I was thinking to go for 6 gb(3x2GB) Dominators @ 1600. Will it be a problem to run 6 GB of ram on 32 bit OS, as I know - it will only show 3 GB inside OS.

    I am going to load 2 OS:
    1. Win XP 32 bit (For work purpose - I need Sql 2000 32 bit and I cant spend $3k+ on SQL 2000 64bit Ver)
    2. Vista Business Edition 64bit and run VMWare inside it to have Xp 32 Bit as guest OS.



    Thanks.
    Any reason SQL 2000 x86 won't run in 32-bit compatibility mode? All the 32-bit apps I've installed thus far run just fine.. They just install themselves in 'Program Files (x86)' and run in WOW64 seamlessly.

  6. #506
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    Well - put the CPU under the F1 pot just to get a feel for what the CPU can / cant do

    Cold boot bug at around -70 and cold bugs around -100

    CPU: Retail i7 965EE
    Board: Gigabyte EX58 Extreme
    Memory: OCZ PC12800 DDR3 Triple

    All my testing to date has been with the CPU between minus 50 - 60 degrees.

    Have been having a play to try an find my max clock (havent tried too many tweaks yet) and think I have found me limit without turning off hyperthreading etc :weirdo:


    Best WPrime 32 and PiFast runs at 4896

    Best WPrime 1024 run at 4860

    Best Super Pi 32M run at 4788



    Will try some 3D benching tomorrow and see how 3DM06 and Vantage go
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  7. #507
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    1.712 vcore... yeah your chip will last two weeks

    what cooling are you going to use for 24/7?


    Asus Z9PE-D8 WS with 64GB of registered ECC ram.|Dell 30" LCD 3008wfp:7970 video card

    LSI series raid controller
    SSDs: Crucial C300 256GB
    Standard drives: Seagate ST32000641AS & WD 1TB black
    OSes: Linux and Windows x64

  8. #508
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    ^^ what is the max safe 24/7 vcore for a 965?

  9. #509
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    Quote Originally Posted by safan80 View Post
    1.712 vcore... yeah your chip will last two weeks

    what cooling are you going to use for 24/7?
    Whoops -back to 1.62 in bios - not sure how I did that

    This will eventually go under my modded MachII - just perfect for these CPU's

  10. #510
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    Quote Originally Posted by dejanh View Post
    I have basically the same setup as you, just using Core i7 940 instead of 965. Same Dominator sticks. I was able to run them at 1800MHz 7-7-7-20 stable with 1.65V and 1.437V QPI/DRAM. However, I have also noticed that upping the core speed will affect your ability to run the ram so high. I am still investigating this issue...
    It's because of the integrated memory controller on the CPU now. I don't know how much the MC compares to the one AMD uses in terms of some MC's being weaker than others but if your CPU has a weak memory controller it can affect your overclocks. The more RAM you have installed and the higher the mem speeds you run the more stress you're putting on the MC. Increasing the CPU speed also increases the speed of the link between the CPU and MC so that's why high memory speeds become less stable the higher you overclock the core speed.

    Here's a pretty helpful overclocking guide for the Asus P6T Deluxe that has some helpful hints for those who are starting out on this board:

    http://www.bit-tech.net/hardware/200...-core-i7-920/3

  11. #511
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    Quote Originally Posted by rge View Post
    You are assuming auto will result in same settings with 19 vs 20 multi on an immature bios, you might be right, but my bios was changing auto settings as I made other changes. I would at least make sure your auto uncore is on 16x, ie 3200 mhz 16x200 when you go from 19 to 20 multi, ie make sure it does not change. I took all the important things off auto, especially after watching them change for worse when i boot up at different settings. My mem timings if left on auto on some multis will try and boot at 6,6,6 18, and when it fails it will kill my OC and then boot up at 6,6,6, 18, despite a rating of 1600 at 8,8,8 24. Bios definitely immature, I dont trust auto for much. But loadline definitely helps on mine.

    i checked qpi and memory, it stayed the same as it was with 19 multi...i know sometimes the auto features doesn't make good decision, but i was able to verify it was keeping the good multis (3600 qpi / 3200 nb)

    loadline calibration did not help, i think either it's not reachable for my cpu or it needs too much vcore...
    or maybe there is something with the imc now
    Core i7 2700k@4,8ghz HT off- 1.41v / Gainward GTX580 GooD 850/1700/2200 / 2X4Gb G.Skill Ares 1833C9 / Z77 Sabertooth / Crucial M4 64 Gb / WD 320Gb and 640GB / Corsair H80 / Corsair 620 HX

  12. #512
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    Quote Originally Posted by herderien View Post
    i checked qpi and memory, it stayed the same as it was with 19 multi...i know sometimes the auto features doesn't make good decision, but i was able to verify it was keeping the good multis (3600 qpi / 3200 nb)

    loadline calibration did not help, i think either it's not reachable for my cpu or it needs too much vcore...
    or maybe there is something with the imc now
    yeah, I got lucky with a pretty good cpu, makes up for my E8400, and my mediocre E8600. Mine starts eating vcore above 4.1, looks like yours does it a little earlier.

  13. #513
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    TO EVERYONE IN WHO HAS OVERCLOCKED ANY OF THE CORE I7 CHIPS, PLEASE POST YOUR RESULTS IN THE INTEL CORE I7 OVERCLOCKING DATABASE. This thread is located here.
    Ba da dum dum dum.

  14. #514
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    core I7 920es@ 4Ghz/1.30v :ouch:
    watter X58-extreme





  15. #515
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    Quote Originally Posted by rge View Post
    yeah, I got lucky with a pretty good cpu, makes up for my E8400, and my mediocre E8600. Mine starts eating vcore above 4.1, looks like yours does it a little earlier.
    it's weird though, i wonder if there's some other parameter i should play with to make those 4Ghz stable...
    Core i7 2700k@4,8ghz HT off- 1.41v / Gainward GTX580 GooD 850/1700/2200 / 2X4Gb G.Skill Ares 1833C9 / Z77 Sabertooth / Crucial M4 64 Gb / WD 320Gb and 640GB / Corsair H80 / Corsair 620 HX

  16. #516
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    Just for the record... nobody has yet been able to achieve 4ghz stable, right? So whats the highest any person has been able to get 24/7 stable? 3.8ghz? 3.9 maybe?

  17. #517
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    What are saying? Look two posts above.
    i7 3960X@5ghz, Asus Rampage IV Extreme, 8gb Gskill RipjawsZ PC19200C8, Corsair force GT 240go, 2XGTX Titan, MM Ascension, Seasonic X-serie Gold 1250W, Watercooling

    i7 3930K@5ghz, Asus Rampage IV Extreme, 8gb Gskill RipjawsZ PC17000C9, OCZ Vertex 3 120go, GTX670 DCU2 Top, MM Pinnacle, Corsair AX850, Watercooling

  18. #518
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    Quote Originally Posted by Hot'n'Chilly View Post
    Just for the record... nobody has yet been able to achieve 4ghz stable, right? So whats the highest any person has been able to get 24/7 stable? 3.8ghz? 3.9 maybe?
    Also 4ghz, 12 hrs prime
    http://www.xtremesystems.org/forums/...&postcount=386

  19. #519
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    Quote Originally Posted by Metroid View Post
    It took me just one attempt to do this, less than 2 minutes.

    4.188Ghz with just 1.34 V, below the 1.35 V limit, very much stable.

    Who did say overclocking this would be hard?



    CPU-Z Validation
    What cooling did you use for this?

  20. #520
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    I have a memory question.

    I have 2 sets of these Gskill memory 7-7-7-18 1.9V
    http://www.newegg.com/Product/Produc...82E16820231167

    Will I be able to run these triple channel at 1600 MHz on a Gigabyte X58 -Extreme board?

    I don't mind loosening up the timing, but I am curious, will I need to get new RAM?

    If they won't do 1600 MHz due to Vdimm, what do you think their max will be?

    I should be getting my CPU and MB tomorrow, so if I need to get a new memory kit, I'd like to order it tonight and get it shipped next day.

    Thanks in advance.

  21. #521
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    20x200 is easy in windows...but hard to get stable..at least for me ^^
    Core i7 2700k@4,8ghz HT off- 1.41v / Gainward GTX580 GooD 850/1700/2200 / 2X4Gb G.Skill Ares 1833C9 / Z77 Sabertooth / Crucial M4 64 Gb / WD 320Gb and 640GB / Corsair H80 / Corsair 620 HX

  22. #522
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    Quote Originally Posted by paill View Post
    core I7 920es@ 4Ghz/1.30v :ouch:
    watter X58-extreme




    Nothing prsonal but I wouldn't call this Prime stable in my book OCCT is not prime95...

    Quote Originally Posted by pinto View Post
    What are saying? Look two posts above.
    Again hard to call that stable without more info.. That's a really limited post Prime95 for 12hours maybe... pinto I see in your sig 4.65 is that prime stable? pics or I call shenanigans...

    Quote Originally Posted by rge View Post
    That's a sweet OC but not a 920 that being the main difference although you make me think I should get the 940...

    Also I wonder if the amount of memory which for you is 3gb has anything to do with the ability to OC the processor??
    Last edited by Guacamole; 12-01-2008 at 08:18 AM.
    Current:
    Asus P6T-Deluxe
    Core i-7 920 (do) at 4.2Ghz
    6 GB Kingston 2000
    Fatality Titanium X-fi
    Antec Quattro Pro 1000W
    Diamond 5970
    Asus 5870 (reference)
    MM Duality-EK-Thermochill

  23. #523
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    Quote Originally Posted by Guacamole View Post
    Nothing prsonal but I wouldn't call this Prime stable in my book OCCT is not prime95...



    Again hard to call that stable without more info.. That's a really limited post Prime95 for 12hours maybe... pinto I see in your sig 4.65 is that prime stable? pics or I call shenanigans...
    oh god, here comes the prime 95 police
    2600k @ 5ghz / z68 Pro / 8gb Ripjaws X / GTX 580 SLi
    2x Inferno raid 0 / WD 1TB Black / Thermaltake 1200w
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  24. #524
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    Quote Originally Posted by sonofander View Post
    oh god, here comes the prime 95 police
    sonofander:
    "I have a good understanding of prime all I need to do is prime for an hour and I'm stable.. See, I use the defferent tests to make sure I'm stable in certain areas and I move on with my life.. I'm running prime for half an hour I'm calling this stable.."

    Really? I quote you from our phone call this morning...
    Current:
    Asus P6T-Deluxe
    Core i-7 920 (do) at 4.2Ghz
    6 GB Kingston 2000
    Fatality Titanium X-fi
    Antec Quattro Pro 1000W
    Diamond 5970
    Asus 5870 (reference)
    MM Duality-EK-Thermochill

  25. #525
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    Quote Originally Posted by Guacamole View Post
    sonofander:
    "I have a good understanding of prime all I need to do is prime for an hour and I'm stable.. See, I use the defferent tests to make sure I'm stable in certain areas and I move on with my life.. I'm running prime for half an hour I'm calling this stable.."

    Really? I quote you from our phone call this morning...

    Go to Mwave and get your 5th x58 board to prime on till you break it and have to rma AGAIN...

    I'm gonna go back to having fun with mine

    Call me when your ready to stop being the P95 police and wanna play some L4D
    2600k @ 5ghz / z68 Pro / 8gb Ripjaws X / GTX 580 SLi
    2x Inferno raid 0 / WD 1TB Black / Thermaltake 1200w
    Dell 3008 WFP / Dual Loop WC MM UFO

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