Post Your Overclock!


  1. Layback Bear
    Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       New #1221

    I always use Arctic Silver not because I know it's better than what came with the hardware but because I don't know how good what came with the hardware is. A little to much will cost you 2 or 3 deg c, I have done it. With Arctic Silver their is a brake in period, I have tested it. I have never used anything other than A/S #5 Poly; if it's not broke don't fix it. I do replace it about every 2 years; it's time for a super cleaning inside the case anyway. I have read many reviews on testing other compounds but it's hard for me to give up something that works. This sounds like a commercial for Arctic Silver but it's not use what ever you want to.
      My Computer

  3. essenbe
    Posts : 26,869
    Windows 11 Pro
       New #1222

    Layback Bear, I agree and usually never use anything but AS 5. But, I read several articles about how good Noctua's paste was, so thought I would give it a try. But, I did use AS5 on the cooler I had previously and had the same difference in core temps. Core 0 was still 8-10° cooler than the other cores. I'm just wondering if it is not just the way the chip is made. 2 pastes, 2 coolers and the same temp issue. I guess it is down to the CPU or the application method.
      My Computer

  4. GeneO
    Posts : 1,653
    Windows 10 Pro. EFI boot partition, full EFI boot
       New #1223

    Well I guess I should post this, as this is going to be history sometime next week. It is a Asus P7P55D-E Pro with i5-760 and 8GB of g.skill ripjaws 1600MHz 7-8-7-24 at 20x200 MHz. I am replacing this with a Asus P8Z68-V Pro (Gen3) + i5 2500k and 8GB Ripjaws X CAS 8 memory (yeah, I know, no imagination - but I wanted a PCIe 3.0 and Ivybridge path and it fit the bill). Bye bye P55. Hope to get a comfortable 4.5 on the new rig.

    I am impressed with the Gflops I have seen from the i5 2500k, more than double what I can get, but am a little puzzled. Some of the circa 4.5 GHz i5 2500 overcclock IBT results I see posted here are 12o Gflops, while others are around 60. I find the 60s more believable as it is in line with other CPUs at the same frequency. What gives?
    Attached Thumbnails Attached Thumbnails Post Your Overclock!-20x200-400ghz.jpg  
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  6. profdlp
    Posts : 3,187
    Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
       New #1224

    GeneO said:
    ...I am replacing this with a Asus P8Z68-V Pro (Gen3)...
    That's the board I bought a month ago and so far it has been awesome. Easy and clean on the Windows installation, plus enough goodies to play with in the BIOS to keep you busy for a long, long time. I got the i7 2600k to go with it, but I think you'll put up some terrific numbers with the CPU you have selected - it seems to be an OCers favorite.
      My Computer

  7. Britton30
    Posts : 24,479
    Windows 7 Ultimate X64 SP1
       New #1225

    Gene, can you change your tRFC to, say 34-38?
      My Computer

  8. GeneO
    Posts : 1,653
    Windows 10 Pro. EFI boot partition, full EFI boot
       New #1226

    Britton30 said:
    Gene, can you change your tRFC to, say 34-38?
    Last time I tried messing with the memory timings, my system and system disk got corrupted. Was really interesting looking when windows booted up, programs opening by themselves and all kinds of junk. LOL. Of course I had an image backup before I started. And it was the tRFC I changed I believe.
      My Computer

  10. GeneO
    Posts : 1,653
    Windows 10 Pro. EFI boot partition, full EFI boot
       New #1227

    OK, so how does Smartyeyeball get about double what I see others post (in GFlops > 120). Is it memory speed - hardly seems like that would double it.
      My Computer

  11. GeneO
    Posts : 1,653
    Windows 10 Pro. EFI boot partition, full EFI boot
       New #1228

    profdlp said:
    GeneO said:
    ...I am replacing this with a Asus P8Z68-V Pro (Gen3)...
    That's the board I bought a month ago and so far it has been awesome. Easy and clean on the Windows installation, plus enough goodies to play with in the BIOS to keep you busy for a long, long time. I got the i7 2600k to go with it, but I think you'll put up some terrific numbers with the CPU you have selected - it seems to be an OCers favorite.
    That's good to hear! Got the CPU, should get the board Monday, don't know when the RAM will arrive.
      My Computer

  12. GeneO
    Posts : 1,653
    Windows 10 Pro. EFI boot partition, full EFI boot
       New #1229

    GeneO said:
    OK, so how does Smartyeyeball get about double what I see others post (in GFlops > 120). Is it memory speed - hardly seems like that would double it.

    Ah I think I answered my own question. From an overclocking forum:

    The 115-120 GFlops on an overclocked i5 2500k are achievable only with IBT including AVX (advanced vector extensions), see Intel® AVX - Intel® Software Network. IBT (in fact, Linpack) with AVX produces way more heat (about 10 deg) than prime95 with small FFT
    IBT - Overclockers UK Forums

    So it is the version of IBT - with (2.51 or greater?) or without the extensions that makes the difference for Sandybridge.
      My Computer

  13. A Guy
    Posts : 53,363
    Windows 10 Home x64
       New #1230

    essenbe said:
    I'm going to try Arctic Silver next time. I'm thinking about a new board and CPU, so we'll see.
    Kip likes the MX-2 by Arctic Cooling. A Guy
      My Computer

 

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