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Temps at Max Load, i5-750

Last response: in Overclocking
March 5, 2010 9:10:24 AM

First of all, I haven't overclocked my cpu before so this is pretty new to me.. That in mind..

I am working on overclocking my i5-750. I am running Real Temp GT with the sensor test (Prime 5, Blend) which does a 100% load/heat up on the CPU. I ran this test at normal unmodified which it maxes at 70C under 100%. My idle temp is under 30C most of the time so my question is how hot is too hot when I am overclocking the settings?

A quick tour of my case, I have 2 120mm fans (intake and exhaust), 3 80mm fans, 2 on the left side, one on the right side (HDD). I do have a post-stock heatsink/fan although it is nothing to write home about

When I clocked my CPU to 3.6ghz my 100% temp goes to 78, when clocked at 3.4ghz it is about 75. Question are these acceptable or should I be worried that even the stock temp is around 70? I did do some research and I found a post on this forum which had:

60-65 great
70-75 good
80 decent

How accurate are these? I am not looking at modifying much as far as case/fan go right now but trying to get information if I am on the right path or not.

More about : temps max load 750

March 5, 2010 3:59:45 PM

Ran the same test on my i5-750. I don't have nearly the fans in the case you do but I do have coolermaster n520 heatsink cause it happened to be what was available in the 1156 socket when I bought my combo deal at Frys. The temps on mine running 175x21 or 3675ghz are about the same as yours listed in you screenshot. Given the heatsink I don't think your temps are that much out of line. Pretty much try and stay under 78 C. After that lifetime of cpu goes down. Don't think my temps have ever gotten over 55 outside of prime benches etc.
March 5, 2010 6:22:32 PM

Good to know, I don't think I'll ever be hitting 100% load consistently but I will try to keep it where it is. I let it run unmodified during the night to help break it in some and the temps went down to around 20C idle which I guess is pretty good. I think I'll keep mine around 160x20 or so, I have no desire to burn up the cpu but only to get a bit more speed out of the stock.

After testing this is where this configuration winds up, I will likely redo the thermal compound on it when I get my last set of ram to put in.

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March 5, 2010 10:18:06 PM

This should answer 99% of your questions if you read every single word closely.
March 5, 2010 10:33:10 PM

andy5174 said:

This should answer 99% of your questions if you read every single word closely.

I took a look and it does answer where the max temp should be, 72.7C problem is my stock i5 when run under the Prime5 Sensor test goes up to 72C at 100% load.... So I guess there is no hope for overclocking it if even without touching it as it is that @ that under 100% load... Funny thing is though when I had it up to 3.6ghz the difference was only 5-6 degrees higher than the stock cooled system... Odd because of the caseflow I have I wouldn't think this would be an issue but apparently it is :pfff: 
March 16, 2010 12:44:19 AM

Best answer selected by taishar77.
March 16, 2010 12:33:46 PM

Hmm, my i5 @ stock settings at 100% load, with even the stock heatsink never went above 62C, idles at 20C.

You should really get a better heat sink, or reapply your TC...