i7-3770 without K question.

shadekk

Junior Member
Jan 7, 2014
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Few days ago i got a good deal on i7-3770 chip that im using on my secondary rig. Board asus z77-m pro.

I put it on 4.1 ghz from bios, turbo options,speed step, c1 etc are off. I also disabled power fluctuation options in windows registry ( cpu is always on load and a tad hotter but without it i was getting buzzing from mb and i dont have time to rma it yet...)

Now here is my question.

i7-3770 tdp is 77w.
Mine chip goes to around 79W on prime and 81-82 on intel burn in.
Vcore is 1.110 max according to hwmonitor and in normal activites it stays ar around 1.080-1.088.

Im using hd4000 without dedicated gpu on this machine.

Wont going over 77w tdp damage my cpu? So far it ran 125 passes with very high memmory on intel burn in and 55 with max and it was OK. Same with 10h prime95. Games are not crashing either and max temp i saw was 75C on one core in intelburnin (nocuta nh-d14 with 1 fan instaled).


Im asking cuz this guy here: http://www.overclock.net/t/1357942/i7-3770-non-k-oc/10 has the same chip and higher oc then mine and his tdp stays on 71w in prime95 where mine goes to 79w. Only difference is that im using hd4000 and he is using his dedicated cards.
 

BSim500

Golden Member
Jun 5, 2013
1,480
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CPU's will be slightly different to each other due to slightly different default voltages. Some have high VID's, eg, up to 1.20v, others as low as 1.00v, and everything in between.
 

shadekk

Junior Member
Jan 7, 2014
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Yeah but wont going over 77w TDP mess up the chip ? And my Vid is in fact lower then his mine is 1.2 his is over 1.3.
 

Ventanni

Golden Member
Jul 25, 2011
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Won't hurt it in the slightest. As long as its properly cooled, it's fine.
 

Yuriman

Diamond Member
Jun 25, 2004
5,530
141
106
Wikipedia said:
The thermal design power (TDP), sometimes called thermal design point, refers to the maximum amount of heat generated by the CPU, which the cooling system in a computer is required to dissipate.

That 77w figure is letting you know how much heat it can dump into your case, at stock, under a worst-case scenario.

Disabling Speedstep is not necessary, but I generally recommend changing voltage mode to "offset" and disabling C3/C6/C package states.
 

Geforce man

Golden Member
Oct 12, 2004
1,737
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another thing to keep in mind is that the software you are using to moniter the "Wattage" will not always be 100% accurate. You are fine. Keep it under 85c and you're golden.
 

shadekk

Junior Member
Jan 7, 2014
4
0
0
Ok tnx for help. I will set it to offset latter on but i just bought it and didnt have time to find the sweet spot for stability. Fixed voltage was easier to test. This rig is used purely for graphic editing so it must be 100% stable as it will run 24h a day. I will probly add a few case fans latter on and a second noctua fan as soon as they send me a new one from rma as my first 120mm broke;/.