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Intel 2500k Core i5 overclock just shy of 5Ghz on air :D

post #1 of 7
Thread Starter 
hey guys. I just wanted to share my current OC on my gaming rig. I just got my new mobo in and I LOVE it. I got the Gigabyte GA-Z77X-UD3H to replace my GA-Z68AP-D3 which treated me so well for the last couple of years. I have a Cooler Master Hyper 212 EVO with dual fans and Antec Formula 7 paste (yes I know I could have used better, its what I had laying around lol). Let me know what you think I can tweak to maybe push it over that 5.0 mark. Temps hover really close to 80 in prime95. I want to get them lower obviously, but am not overly familiar with the new layout of the bios.
http://valid.canardpc.com/2878349

2878349.png
post #2 of 7
have you benched the OC for stability. Obviously you did P95 but for how long. 24 hrs is recommended, but 12 hrs should be fine. Also, did you try IBT. A 10 min run should really stress that OC. Also, i would not (and many others would also) not recommend running that voltage through your proc. It is the absolute max but it will degrade the chip. Also, if you are gaming, then i do not see how that high a OC would benefit you in current games. i myself sit comfy @ 4.5Ghz.
post #3 of 7
No need to do IBT. It unnecessarily heats up the cpu to unreasonable levels and in my experience, does not test for stability all that well. Prime 95 for a couple hours should be enough.
Nice OC BTW
post #4 of 7
change the cooler to a better one, like Phanteks PH-TC14 or Noctua D14 to tone down the temps. also, agreed that 1.5v is too much. for me, 1.4v is the max for the 2500k but this is subjective.
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Intel i7 4770k Asrock Z87M OC Formula GTX Titan X Crucial Ballistix Tactical LP 4GB x4 
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Toshiba Q 256GB HGST 7k1000 1TB Be Quiet! Dark Rock Pro 3 Be Quiet! Silent Wings 2 
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Windows 7 Ultimate Dell U3014 HHKB Pro JP Seasonic X760 
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post #5 of 7
Sandy's TJMax is around 100 degrees so you are more than in enough of the comfort zone temp wise. However, I would be willing to bet that an Intel Burn Test on Very High will bring those temps much higher because Prime95 does really nothing as far as testing maximum temps go. ITB and Linpack LinX heat up the processor much quicker.

Regardless of this, or the possibility unstable overclock. What is more important is that you are running it at 1.5v. Which, in retrospect to the temperatures will over time degrade the chip. If you are running an extreme cooling setup, like Phase Change, Peltier, etc. Then 1.5v is fine for daily. Under water, with a decent setup or a even an AIO cooler with some really nice high static pressure fans then yeah 1.5v is fine for daily. I ran my 2500k @ 1.47v @ 4.9GHz for close to 4 months but then again in Prime 95 I was hitting 55C max and in IBT on Very High 70 max. Even during 5.2GHz bench runs @ 1.52v of 3DMark11 I wasn't going over 60 degrees. So, basically when it comes to degradation it's a combination of two factors both heat and voltages. If you can minimize either factor you can extend the lifetime of your chip. Otherwise, expect degradation rather quickly because at 80C and 1.5v you are not going to last much longer at those voltages and temperatures. You might get 6 months out of it, but then after then you will find yourself requiring a lot more volts to be able to do 4.9-5.0GHz daily.

Case in point, get better cooling or drop down to a more responsible overclock. Unless I was running an extreme cooling setup or a really nice loop I really wouldn't be running @ 1.5v daily. I mean, if you grabbed an H110 and replaced the fans with some higher static pressure fans in Push/Pull like Bgears b-blaster 140mm fans then you might be able to get a year or two @ 1.5v daily but even then who really knows. If you are running those volts you really want to be under 70 degrees in stress testing for daily use.
post #6 of 7
Thread Starter 
Thanks for the input guys. I am dropping the voltage bit by bit until it gives me errors. Temps are already below 75 and it ran for about 4 hours last night on prime. I'll be sure to get a burn program, but for now, Prime is what i've got. I'll look for one tonight. I do plan on going to a 240mm water setup and mount it on my top. This OC isnt for daily. I am just wanting to push it a bit to see what they can do. I'm looking to get an Ivy Bridge anyway,
post #7 of 7
I would definitely not run prime on that. It can't be too healthy on the chip.

Run some cpu benchmarks and monitor for whea errors. If none pop up during the tests, then it's relatively stable.
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