iskout Posted January 3, 2011 Posted January 3, 2011 (edited) I OC'd my E8400 to 3.83 GHz last night, ran Prime95 for 16 hours, ran NovaBench today (Scored a 609. Meh), and played Oblivion for 1/2 an hour. (Skyrim coming out got me wanting to play it again). So, it survived all of that with no hiccups at all. Why did it crash today while I was browsing the forums today: Voltages: Northbridge: 1.45 FSB: 1.4 Vcore: 1.345 FSB: was at 1915, now it's at 1900 Multiplier: x8 Edited January 3, 2011 by iskout Share this post Link to post Share on other sites More sharing options...
IVIYTH0S Posted January 3, 2011 Posted January 3, 2011 memory speed?? Share this post Link to post Share on other sites More sharing options...
iskout Posted January 4, 2011 Posted January 4, 2011 800 MHz, but it's slightly underclocked (like 792) when I had my FSB pushed up. Timed 4-4-4-15. I tried doing 4-4-4-18, but to no avail. Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 5, 2011 Posted January 5, 2011 Isk - did it crash to a blue screen error, lock up, shut down or your browser just stop responding? After having passed all the stress you through at it earlier it seems unlikely that your overclock is unstable. Share this post Link to post Share on other sites More sharing options...
iskout Posted January 5, 2011 Posted January 5, 2011 it just shut down randomly and restarted. (Like a hard reboot, didn't send windows to shut down) After that, I was having a hard time keeping from shutting down after more than 10 minutes of use. I'm back at my 3.6 right now, running fine. Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 6, 2011 Posted January 6, 2011 Did you happen to notice the cpu temp at the time the machine shut down? If it wasn't a shutdown due to over heating it could just be that you need a tad bit more cpu vcore................ Share this post Link to post Share on other sites More sharing options...
iskout Posted January 6, 2011 Posted January 6, 2011 I wasn't looking at the temp, but I know it wasn't the temp. My WC system hasn't let it go above 57 on Prime95, and usually it runs at about 51-52 on it. How high would you suggest? I'm kinda wary about going above ~1.36-1.37 ish on this, since I'll be running it 24/7 Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 6, 2011 Posted January 6, 2011 Since you're on water cooling I'd try 1.38v for a bit and see how that goes. I had an early production run E8400 that ran at 1.40v for months overclocked at 3.80Ghz. I finally tore that rig down and sold the board, memory and processor. To this day both are still in service with the new owner. Share this post Link to post Share on other sites More sharing options...
iskout Posted January 6, 2011 Posted January 6, 2011 I think I'll try 1.36 first. it's a bit of a jump, but since it was running okay on 1.345 for almost 24 hours, i'll bump it up .015 Share this post Link to post Share on other sites More sharing options...
battery Posted January 6, 2011 Posted January 6, 2011 (edited) i have almost the same setup as you, except i have an asus maximus formula x38 and ocz reaper ddr2-1000 and an e7500. i'm running 1.35v which has kept me stable at 3.8ghz without any issue for over a year now. i believe ~1.4v for 24/7 operation is safe and 1.5v for some intense benching. just curious, what are your temps? Edited January 6, 2011 by battery Share this post Link to post Share on other sites More sharing options...
iskout Posted January 6, 2011 Posted January 6, 2011 I posted them above, but at 3.83, after a 16 hour stress test, they didn't go above 57C, and that was only random spikes. More often than not, it was at 51-52C I intend to add 2 more fans onto my radiator for a push/pull setup, since I'm only using a pull setup on my 120.2 rad right now. Share this post Link to post Share on other sites More sharing options...
battery Posted January 6, 2011 Posted January 6, 2011 (edited) sorry, not really sure how i missed that. ok so i'm doing a little research and testing my own rig. running p95 for about 30 minutes now and my proc hasn't gone over 50C. now the problem with this is that my water pump isn't working and i have 3 more waterblocks in my loop than you do. i'm thinking your temps should be much lower. Edited January 6, 2011 by battery Share this post Link to post Share on other sites More sharing options...
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