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  1. #16
    Joined
    Aug 2003
    Posts
    8

    Re: a mild i7-860 OC that would last?

    With a zalman 9500A running at about 60% I got 160x22 (3.52) without touching the voltage, which according to CPU-Z the motherboard set to 1.264, though I did have to up my RAM to 1.64. Furthermore, I believe it's the ram that's holding me back with 8-8-8-22 settings since the FSB won't post any higher even at lower multiplier.

    My temps are sitting at 80 even after running prime95 for hours, and nothing else has brought it even close to those temps so far... and this is in a 25 degree room. Oh, and when I first tried the stock cooler, the damn thing broke 80 on stock and I almost had a heart attack when I saw it reaching 93 at 3.2ghz after 10 mins of prime95.

  2. #17
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Just bringing this issue up:

    I now have these broken startups that try to go straight to the Windows Recovery Environment rather than the OS sometimes. I had it on a Sandforce SSD so I thought it was that causing the problems. (Especially when I saw the Corsair thread on Sandforce BSODs) I swapped it for an X25-M and the same thing just happened...

    It happens when the computer is shut down after intensive CPU load like SETI @ Home and boots up later on. Which component of the overclock could be causing this failure? Voltages? Frequencies? I always boot up normally after the failed boot.

    I'm running a memtest overnight just to make sure it's not the memory. Anyone else know of what could cause the Windows boot not to go into Windows but enter the Windows Recovery Environment without any intervention? (AKA It shows the Windows logo then immediately jumps to the recovery environment without a list appearing saying "Launch Startup Repair" or "Start Windows Normally".)

    And before you ask, No, I did not lose focus and not notice the list. The list never appeared and just hops right into the Recovery Environment. If I let it keep going, it crashes and reboots.

    VTT has also been bumped back up to XMP defaults of 1.35v. Anything lower corrupted files and caused file transfer BSODs.
    Last edited by JackVancouverBC; 09-19-2010 at 05:20 AM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  3. #18
    Joined
    Aug 2000
    Location
    Vvardenfell
    Age
    58
    Posts
    10,891

    Re: a mild i7-860 OC that would last?

    Are you running drives in RAID? I've had similar, but I run my SETI on drive D:\, which is two drives in RAID 1. If the rig crashes for any reason (it's at 4.0GHz) then I sometimes get this. I think it just means that the hard drive has corrupted a file, but I did get one where it wouldn't chkdsk until I did rollback, and wouldn't rollback until I did chkdsk. Faintly annoying. But it was drive D:\ which was playing up. Even if you're not in RAID, I think it's a SETI file which is causing the issue (it caused the above problem - loads of fun in Safe Mode deleting units to fix it).


    M

  4. #19
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Not running in RAID, but I suspect Vcore or VTT is set wrong. I set the Vcore to 1.2v Vcore and 1.3v VTT and I haven't gotten the glitch yet.

    Edit: Ok, someone recommended not to use XMP profile as it screws up overclocks. Going to use the standard and gonna go down to 1.2v Vcore and VTT.

    Edit #2: Nope, still doing it. It's not the voltages maybe... And this time, it wasn't SETI to blame, it was LinX. Bumped the VTT back up to 1.3v just in case.

    Edit #3: It's still doing it even when the system is completely idle and shuts down normally... I believe I've encountered a 1 in 1 billion glitch since I can't find it on Google.

    Edit #4: According to this, it's registry corruption. But, I installed 7 on stock settings so how could I have registry corruption?!?

    Edit #5: I turned off the pagefile for a bit and it ran fine, normally able to boot and everything... But as soon as I turned it back on, the thing never even showed the "Starting Windows" screen and rebooted. What part of a overclock could possibly affect the pagefile so that it prevents Windows from booting???

    Edit #6: Wow, I had HDD problems and on stock, my HDD fixed itself somehow. Maybe my QPI frequency is too high. I should have a QPI of 2397mhz since that's what it is at stock... Also, it does the recovery environment regardless of pagefile... It is an overclock issue, I just can't isolate it...

    I just set the EVGA setting for QPI link rate to 4.27 and the MCH strap to 1600mhz. Was going fine... until I BSODed doing a Defrag on 1.35v VTT... I thought 1.35v would guarantee IO stability, but I guess it doesn't...

    To all of you that have put up with this, any recommendations for a 160x21 OC? Did I fry my processor since none of these issues came up when I OCed to 1.15v Vcore and 1.35v VTT before.
    Last edited by JackVancouverBC; 09-23-2010 at 08:51 PM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  5. #20
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Sorry about all the panic, ignore the previous post. it seems I set my memory with way too tight timings for the standard SPD profile. The rated 9-9-9-24 2T gives me IO errors outside of the XMP profile. I set it to auto on the standard profile and it set it to 11-11-11-29 1T.

    Tightening the timings would involve VTTs of 1.375 or higher... I don't think that's good for the processor so I'm staying at 11-11-11-29 1T.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  6. #21
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Apologies in advance for the triple post, but here's an update.

    Just booting up today after a Windows Update and a night of SETI crunching, my machine refused to post...

    I knew this must be memory related, so I tweaked the settings back to DDR3-1333 9-9-9-24. Interestingly, the automatic timings set it to 11-11-11-29 even on DDR3-1333, so I had to manually set the timings back to 9-9-9-24.

    To achieve this, I had to set the BCLK to 166x20 with a 2:8 DRAM ratio. Now my speed is a even milder 3.332Ghz.

    I was experimenting with different VTT voltages and found that any VTT over 1.2v is not stable. 1.225v VTT crashes Windows Explorer when starting a LinX, 1.25v VTT crashes the system by causing svchost to run corrupt, and 1.275v VTT causes Windows Explorer to not even run at startup, just crashing at startup.

    I also found that if I set my memory voltage to 1.5v (the absolute default for 1600mhz memory running at 1333) the memory Vdroops as soon as load is applied. I set the memory to 1.52v in BIOS to see if that fixes things. HWMonitor now shows it never drooping below 1.49v. (It drooped to 1.47v when loaded on 1.5v BIOS)

    Furthermore, the automatic memory settings between stock and OC are never the same on each reboot. Specifically the CHA and CHB latencies always change every reboot. one day it's 64, the next it's 66, next it's 67.

    Edit: Just KMODE_EXCEPTION_NOT_HANDLED BSODed at 1.52v DRAM. Bumping down to 1.51v DRAM.

    Edit #2: Just no POSTed again. Setting everything memory related back to automatic and returned to 160x21. It's setting the DRAM voltage to 1.68v now. What next?

    Edit #3: Seems the extra voltage and 100% automatic settings are helping it POST everytime for now. Will post if any more issues come up.
    Last edited by JackVancouverBC; 09-29-2010 at 07:41 PM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  7. #22
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Couple months no issues, until the Recovery Environment broken startups began again.

    Raising the VTT was no help (in fact, it hurt more than helped after multiple times the recovery environment startup appeared.), so I raised the DRAM from 1.68v to 1.7v.

    Now, a new problem: With extra voltage on the memory, I get more crashes in Just Cause 2 and nowhere else. Ideally, I'd stick to 1.68v DRAM and 1.2v VTT, but that's just not possible because of the recovery environment problem. I have to bump it up to 1.7v to not see the recovery environment.

    My system never ran properly on stock timings for my memory, so this high-voltage loosened 1600mhz settings is about as good as I can get.

    I also more recently raised the PCI-E frequency to 104 as an extra stability step.

    I hope these Just Cause 2 crashes aren't related to my OC, since every other game runs fine without crashing.

    Edit: After deleting a NCF file and forcing a more thorough verification of the game files, it seems to have solved the crashing, at least for now... Will post again if problems arise.
    Last edited by JackVancouverBC; 01-31-2011 at 04:59 AM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  8. #23
    Joined
    Jul 2004
    Location
    Toronto
    Posts
    2,873

    Re: a mild i7-860 OC that would last?

    You'd cry if you knew my voltages lol

    Spoiler!

  9. #24
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Quote Originally Posted by EH100501AC View Post
    You'd cry if you knew my voltages lol
    If it's on liquid, nothing to worry about, but if it's on air... watch out...

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  10. #25
    Joined
    Jul 2004
    Location
    Toronto
    Posts
    2,873

    Re: a mild i7-860 OC that would last?

    Like entry level liquid. Just a H50 with decent Noctua fans. The only thing I'm worried about is the IMC voltage which on my board has to be pretty high to maintain 4 GHz or more. Otherwise, I could lower it .1 V and go back to 3.6-3.8 GHz.

    Spoiler!

  11. #26
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Just an update: Multiple restarts later and the system's still stable... except for Just Cause 2 again...

    I think I'm suffering microstuttering. The object in the game is moving at a constant rate, but the image slows down while the in-game object is still moving at a constant speed. This is most noticeable when paragliding.

    Could it be related to my PCI-E being set to 104? AMDScooter, you experiencing microstutter at 104 PCI-E? (even if your card is AMD)

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  12. #27
    Joined
    Jul 2004
    Location
    Toronto
    Posts
    2,873

    Re: a mild i7-860 OC that would last?

    Have you considered changing your 3D / quality / in-game settings? It's probably not your overclock (on the cpu) that is the culprit. If it is o/c related, it can be your graphics card.

    If you've updated any drivers recently or installed a new patch on a game, it could be as simple as rolling back your drivers or wait until they fix the bugs.

    From my experience, I've had great success with the 3rd last BIOS that Asus released. Since changing it to their 2nd last one, my o/c was less stable. Their latest revision is a slight improvement however.

    Spoiler!

  13. #28
    Joined
    Jul 2004
    Location
    Toronto
    Posts
    2,873

    Re: a mild i7-860 OC that would last?

    FWIW, I use 103 PCI-E freq with no issues Dunno if that helps you but it's my sweet spot.

    Spoiler!

  14. #29
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    Yeah, I just went back to 100mhz PCI-E and it's still doing it. Might as well have it on 104.

    Weird thing is, is that it is somehow CPU usage related, as there is much less CPU usage on higher settings than on lower settings. And I get less stutter with HT on than with it off. I tried a higher clock speed, it along with Triple Buffering minimized the effect, but did not get rid of it.

    Edit: I'm happy to report that turning on the Nvidia Specific features in Just Cause 2 has fixed the stutter and maintains a framerate around 70fps. With the Nvidia specific features off, the microstutter returns.
    Last edited by JackVancouverBC; 02-03-2011 at 10:27 PM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

  15. #30
    Joined
    Nov 2009
    Location
    Vancouver, BC, Canada
    Posts
    343

    Re: a mild i7-860 OC that would last?

    STILL GETTING RECOVERY ENVIRONMENT FAILED BOOTS.

    I think my RAM is defective. I wasn't stable at stock speeds and I'm still not stable with 1.7v on the sticks.

    Oddly, Memtest passes each time, yet I still get failed recovery environment boots.

    Do I have defective RAM?

    Edit: I'm guessing 104 isn't my sweet PCI-E frequency. Trying 100 with 1.7v DRAM for the next while to see if it helps. If I get it again, prepare for a new post and a possible RMA.
    Last edited by JackVancouverBC; 02-10-2011 at 11:49 PM.

    ----
    PC #1:

    also see profile System Specs and Mods Rigs link
    ----
    PC #2: Lenovo X200t 7449-9EU
    Core 2 Duo SL9400 1.86Ghz
    Intel GS45 chipset - 4500MHD Graphics
    Corsair 2x2GB DDR3-1333 @ 1066 8-8-8-20
    Intel X25-V 40GB
    Wacom Penabled (only MS programs)
    Windows 7 Pro 64bit

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