The_Slayer Posted February 23, 2011 Posted February 23, 2011 (edited) Hey guys, this issue has my really confused, hopefully somewhere here has an idea.. With forum wars going on, I was overclocking my processor as far as I could take it. I could easily hit 4.4ghz and even a bit higher at times, even had the voltage as high as 1.65v with no problems. Ran it like that for about 2 days doing everything I needed. After I was done, I went to my bios and loaded the default settings to clear out all the high settings I had. I set the clock speed back to 4.0ghz (which was my old overclock and 100% stable) Now, I suddenly cant even POST if I set the clock past 3.3ghz. I set the multi to 20, FSB to 200 (which was my previous overclock) and found it wouldnt even POST. Eventually, through trial and error, I found the max I could boot at was 20x 165 (3300mhz). After I loaded windows, I started up Prime95 and ran it for 15 minutes with no errors. I raised the FSB 1mhz at a time and ran prime again with no problems. When I set the FSB to 167mhz and started Prime, it quit with an error after just a few seconds. I raised it to 168mhz and suddenly Windows pops up with an error saying Catalist Control Center stopped responding. As soon as that window closed, I get a BSOD (different one every time) or my display just gets all pixelated and my computer restarts. I've tried this about 6 times now and everytime my computer will just restart right around 167 or 168mhz. It will not POST at all when I set it at 167 or higher. While I was overclocking for forum wars, I saved an overclocking profile that was around 3.35ghz and I KNOW will boot just fine as I used it many times. When I load that now, it wont POST. Does anyone have any ideas? I find it so weird how after a few days of overclocking it would work fine, but as soon as I give it a break it gives up. While I was overclocking, temperatures idled around 30 to 40c and maxed at 70 to 80c but for no more than 6 seconds or so. I waited a few minutes between tests to make sure everything was cooled off too. I am positive its not a software issue as it wont even POST at high settings. I have reset CMOS a few times, taken the processor out and inspected it and it seems fine. Cant figure out what could be causing this. Heat is not an issue either as I'm idling around 28c and with prime95 running, I max out at 55c. System: Intel Core i5 760 (stock 2.8ghz) Corsair H70 EVGA P55 Classified 200 8GB DDR 3 1600 5770 + 5750 (not overclocked right now) 850 watt PSU (only a few months old). Edited February 23, 2011 by The_Slayer Share this post Link to post Share on other sites More sharing options...
Fatedmeeting Posted February 23, 2011 Posted February 23, 2011 Try running memtest and small fft cpu tests to see which one is going unstable first. Hardware degrades over time with normal use, this process is only accelerated when you overclock. The kind of conditions you were putting the hardware under risk damaging them very fast. I'm not saying that such is the case here, but it's a possibility. Share this post Link to post Share on other sites More sharing options...
Fatedmeeting Posted February 23, 2011 Posted February 23, 2011 It might still be possible to stabilize your rig with the old clocks, just with higher voltages. Share this post Link to post Share on other sites More sharing options...
aaron6581230 Posted February 23, 2011 Posted February 23, 2011 1.65V?! I wouldn't be surprised if something became damaged in the process. Share this post Link to post Share on other sites More sharing options...
dr_bowtie Posted February 23, 2011 Posted February 23, 2011 try it in another board and look for burnt pins... Share this post Link to post Share on other sites More sharing options...
The_Slayer Posted February 23, 2011 Posted February 23, 2011 I only got the processor back in august so its not too old, I still have processors 6+ years old that are running fine. I've tried higher voltages and get the same results. Yeah, in hindsight I probably shouldn't have pushed it so far, but from looking around I saw plenty of other people with a similar setup hitting 1.65 and even 1.7v seemingly without issues. No burnt pins on the processor or anywhere around the socket on the motherboard. I'll try it in another board tomorrow if I can, problem is the only other socket 1156 system I have is with a low end board and an i3, so may not be able to overclock too much on it. What's puzzling me the most is this started after I was done overclocking, it was stable until I loaded default settings. Unless this is just a crazy coincidence. Share this post Link to post Share on other sites More sharing options...
Fatedmeeting Posted February 23, 2011 Posted February 23, 2011 Yes, with no or very small overclocks it could last decades.. The people pushing 1.7-2v on these get their hardware for free(sponsored), or just can afford it. Share this post Link to post Share on other sites More sharing options...
The_Slayer Posted February 23, 2011 Posted February 23, 2011 I also cant see a few hours of running it at 1.5 to 1.65v will kill it. I normally keep it around 1.3 or 1.4v I have it on auto right now and its at 1.27 according to CPUz. Share this post Link to post Share on other sites More sharing options...
Fatedmeeting Posted February 23, 2011 Posted February 23, 2011 (edited) Degrade would be more accurate. Electromigration. I can't accurately say that is the most likely case here, being that I'm limited to the information you are providing us. Edited February 23, 2011 by Fatedmeeting Share this post Link to post Share on other sites More sharing options...
The_Slayer Posted February 23, 2011 Posted February 23, 2011 If there is anything else you need to know, just ask. I tried to provide all relevant information I could. I will be testing it in another computer tomorrow though. Share this post Link to post Share on other sites More sharing options...
Fatedmeeting Posted February 23, 2011 Posted February 23, 2011 Let's wait for those test results. They should help determine what's limiting the overclock currently. Share this post Link to post Share on other sites More sharing options...
Waco Posted February 23, 2011 Posted February 23, 2011 I set the clock speed back to 4.0ghz (which was my old overclock and 100% stable) What voltage? Share this post Link to post Share on other sites More sharing options...
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