Intel Core i7 2600K L038A660 Retail + Gigabyte P67A-UD7

Discussion in 'Intel x86 CPUs and chipsets' started by eva2000, Feb 13, 2011.

  1. eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    First Sandy Bridge cpu run with Intel Core i7 2600K L038A660 with Gigabyte P67A-UD7. The Gigabyte P67A-UD7 was flashed from shipping bios F3 to F7f and immediately clocked it up on both cpu and memory end. 2x2GB A-Data 2000X - Elpida BBSE modules left on auto main and sub timings and set to 21.33 mem multi.

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    System:
    • Intel Core i7 2600K L038A660
    • Corsair H50-1 + 120x25mm Thermaltake 81cfm fan
    • Gigabyte P67A-UD7 F7f bios
    • 2x2GB A-Data 2000X Elpida BBSE
    • 256GB Crucial RealSSD C300 Intel SATA 6G port IDE mode
    • Sapphire HD5870 Cat 11.1
    • 1200W Silverstone OP1200
    • WinXP SP3 nlite fully updated

    Quick Super Pi 32M runs untweaked
    • 4.8Ghz 1.335v vcore LLC 1
    • 5.0Ghz 1.390v vcore LLC 1
    • 5.2Ghz 1.500v vcore LLC 2

    4.80Ghz 1.335v


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    5.0Ghz 1.390v


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    5.2Ghz 1.500v


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  2. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    Elpida Hyper Testing on Gigabyte P67A-UD7​


    The A-Data 2000X Elpida BBSE didn't like 7-8-7x at 2133Mhz as it's a low vdimm 1.58-1.60v type of modules so higher vdimm needed would error out. So swapping over to some Elpida Hyper testing. Tried one 2x2GB SuperTalent 2200C8 Elpida Hyper kit and while it did 32M pi at 2133mhz 8-8-8-24 at 1.66v vdimm but it only did it at 2T and didn't like 1T. So swapped that out for some Corsair Dominator GT 2000C7 7-8-7-24 Elpida Hyper testing which was much better once figured out a few things for the Gigabyte P67A-UD7.

    Did notice the subtimings default in SPD on Super Talent 2200C8 were tighter in some areas than Corsair Dominator GT 2000C7. For instance tFAW = 32 on Super Talent vs 40 on Corsair.

    While testing Corsair Dominator GT 2000C7, I think I have found a bclk hole somewhere. 100.2bclk which is what I have been testing with, is causing failed oc'd messages at 2133mhz 7-7-7-24, but changing to 100.1bclk or 100.6bclk or 100.7bclk and even up to 102.7bclk can memtest fine!

    First run at 2131Mhz 7-7-7-24 leaving subtimings on auto except tRFC 74 and manually setting 1T and in memtest86+ v4.20 quicky test was capable at 1.70v vdimm, but needed 1.74v vdimm for 32M Pi from 2131-2139Mhz. Did a quick bclk bumping via ET6 in windows to validate at 2202Mhz 7-7-7-24 at 1.74v.

    System:
    • Intel Core i7 2600K L038A660
    • Corsair H50-1 + 120x25mm Thermaltake 81cfm fan
    • Gigabyte P67A-UD7 F7f bios
    • 2x2GB Corsair Dominator GT 2000C7 - Elpida Hyper
    • 256GB Crucial RealSSD C300 Intel SATA 6G port IDE mode
    • Sapphire HD5870 Cat 11.1
    • 1200W Silverstone OP1200
    • WinXP SP3 nlite fully updated

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  3. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    5001Mhz at 1.380v
    2x2GB Corsair Dominator GT 2000C7
    @ DDR3-2134Mhz 7-7-7-24 at 1.74v


    Only tightened tRFC 88 and set 1T CMD rate manually for first run @5001Mhz. Strange as I mentioned before with 21.33Mhz memory multiplier at 7-7-7-24 timings with 34x cpu multi 100.2bclk had issues, but now at 50x multi 100.1bclk had issues but 100.2bclk runs fine :confused:

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  4. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    As explained here, after remounting Corsair H50-1 with proper mount and thermal paste contact, I managed to a bit more stability when it comes to all core benchmarking i.e. wprime 1024M at 5.2Ghz 1.490v bios (1.512v idle while ET6 reports 1.50v) windows was passable. But stil this Core i7 2600K L038A660 is hitting a ceiling at 5202Mhz on Gigabyte P67A-UD7 F8x bios.

    5215Mhz was max validation and benchmarks below at 5202Mhz 1.512v idle.

    5215Mhz 1.512v idle
    4GB Corsair Dominator GT 2000C7
    @2139Mhz 7-7-7-24 1.74v​


    [​IMG]


    5202Mhz 1.512v idle
    4GB Corsair Dominator GT 2000C7
    @2134Mhz 7-7-7-24 1.74v​


    Super Pi 32M
    [​IMG]

    Aida64
    [​IMG]

    MaxMem
    [​IMG]

    Hexus Pifast
    [​IMG]

    WPrime v1.55 32M & 1024M
    [​IMG]

    System:
    • Intel Core i7 2600K L038A660
    • Corsair H50-1 + 120x25mm Thermaltake 81cfm fan
    • Gigabyte P67A-UD7 F8x bios
    • 2x2GB Corsair Dominator GT 2000C7 - Elpida Hyper
    • 256GB Crucial RealSSD C300 Intel SATA 6G port IDE mode
    • Sapphire HD5870 Cat 11.1
    • 1200W Silverstone OP1200
    • WinXP SP3 nlite fully updated
     
  5. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    Some load temp testing just to see where Corsair H50-1 cooling is at for Core i7 2600K L038A660. I did quick 3 pass Linx run and took screenshots at exact same time in the benchmark run.


    Corsair H50-1 + Thermaltake 120x25mm 81cfm fan push
    vs
    Corsair H50-1 + Thermaltake 120x25mm 81cfm fan push + Spire 120x25mm 75cfm fan pull​


    Only resulted in 0.5C to 1.5C difference which evened out to around 0.5C the longer the test ran.


    Corsair H50-1 + Thermaltake 120x25mm 81cfm fan push

    Linx

    [​IMG]

    Corsair H50-1 + Thermaltake 120x25mm 81cfm fan push + Spire 120x25mm 75cfm fan pull

    Linx

    [​IMG]

    then ran 2hr Prime95 which stresses cpu more than Linx for Sandy Bridge cpus.

    4.8Ghz 1.38v

    [​IMG]

    4.6Ghz 1.296v

    [​IMG]
     
    Last edited: Feb 16, 2011
  6. Punster

    Punster Member

    Joined:
    Jun 18, 2005
    Messages:
    902
    Nice testing :)

    Bought myself a 1155 setup today, hope it does some alright numbers, my 1366 i7 was maxed out at 3.6GHz stable...

    • Zalman CNPS9900MAX CPU Cooler with Red LED
    • Intel Core i7 2600K
    • Gigabyte GA-P67A-UD7 Motherboard
    • Corsair Vengeance CMZ8GX3M2A1600C8 8GB (2x4GB) DDR3
     
  7. Alba

    Alba Member

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    Nice works as always mate.

    Just a note on the LinX GFlops, I would have expected to see higher than the 60.5 that you got @ 4.8GHz considering my 950 @ 4.45GHz does 59.5, plus isn't SB suppose to be better clock for clock than Bloomfield?


    Click to view full size!
     
  8. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    congrats what batch is that 2600K ?

    Not sure mate, linx latest version has avx instructions support for windows 7 or windows 7 sp1, while winxp doesn't have support for sandy bridge's new instructions. So winxp i'm using will have lower GFLOPs due to me not using windows 7 and not using avx supported linx version
     
  9. 3Tone

    3Tone (Banned or Deleted)

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    Interesting point George... Any reason for going with WinXP over Win7?
     
  10. Alba

    Alba Member

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    It's faster for SuperPI, Wprime etc.
     
  11. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    Yup winxp faster for my fav benchmark super pi 32m :D

    Will try win7 later though - for now messing around with memory figuring stuff out.

    [​IMG]

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  12. Punster

    Punster Member

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    Not sure yet, gotta wait for PCCG to deliver it all to me... :(
     
  13. snappy1

    snappy1 Member

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    Great to see someone posting some real memory benchies again here Eva:thumbup:

    Dissapointing results with the supertalent 2200 c8, I have 6 GB A Data 2200 c8 , same hypers, I was really looking forward to giving them a hard time on sandy..

    Amazing results from your Dominators, are they your original 2000 7-8-7 sticks?

    And I am guessing 6.24.234 is your new pb? just crazy under a H cooler.
     
    Last edited: Feb 16, 2011
  14. OP
    OP
    eva2000

    eva2000 DDR1/DDR2/DDR3 Addict

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    Well let us know what ya get :)
    Yeah only tried 2x2GB Super Talent 2200c8, haven't tried the other 4x 2200C8 yet. These are rma'd Dominator GT 2000C7 CMG ones 7-8-7-21 - got 2 sets of 3x2GB, only tried 2 pairings of 2x2GB GT, 2nd pairing can do less volts than first but top out slightly below first pairing you see above.

    Yeah 6min 24 so far PB for 32M on sandy bridge. Can't get much more as cpu is capped at 5200mhz right now. Really need a 5500+ mhz 2600k for sub 6min 32m fun!
     
  15. Punster

    Punster Member

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    Ended up getting the L051B142 batch.

    Flashed bios to 7h, hope it clocks ok!
     

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