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First time overclocking. i5 2500k voltage question

post #1 of 8
Thread Starter 
so i built my first intel based PC this weekend and i started messing with overclocking based on some stuff i read here on the forums and i ran into something i wasnt sure of. i got it to run stable at 4500mhz but it took 1.405 v on the core to do it (in bios) but when i was running the LinX test the voltage according cpuz and AXTU was just under 1.3v. from reading i understand 1.4 is the most you want to put in these things (roughly) so my question is, is that number based on what you have the voltage set to in bios or what it actually runs at on full load? i assume bios but id like to be sure.

im just messing around for benchmarks i suppose. i dont plan to keep the thing too much over 4000mhz for 24/7 use (since i have no use for more speed then that) . id like to get it a little higher if possible, for personal satisfaction of course. tongue.gif

heres a screen shot during the test. any advice is welcome. build is in my sig thingy

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post #2 of 8
I think 1.3v is a little high for only 4GHz, most of the average chips get around 4.4 with that much or higher.
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post #3 of 8
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im only 1.28 at 4ghz in bios (1.20 in cpuz) and im sure i could go lower havent tweaked it yet.
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post #4 of 8
IMO i think for 24/7 you should not go above 1.40 but that's just me. I know that some feel that 1.35 is max and others 1.45.
For referencing i get 4.5Ghz at 1.360 and 4.7ghz at 1.385 thumb.gif
post #5 of 8
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my 24/7 will be well under 1.4, mid 1.2's or lower. im not really a PC gamer so even at stock speed its overkill for me lol. i just like trying things
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post #6 of 8
I'm running 1.5 at 5ghz. To lazy to mess around and keep adjusting it so I just primed it like that. Some say it's to high, I say I still got .02v of breathing room.
post #7 of 8
I too was using 1.4v on 4.5ghz but recently I was able to get mine down to 1.330v. (1.296v in CPUZ)

Though I don't think it's highly stable but it depends on your chip and luck Warning: Spoiler! (Click to show)
33pdf8l.png

Edited by Kiros - 2/14/12 at 10:57pm
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post #8 of 8
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yep mine was running at 1.296 also according to cpuz, but i just found out it wasnt stable at that i ran it on prime95 and it kept BSOD after 2 hours of running had to bump the voltage to 1.415 to get it to run stable (8+ hours) and it actually only ran at 58-60c at that voltage. ill do a run with it at 4.6 or 4.7 as long as its under 1.5v/75c just for a benchmark then turn it back down.
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