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Overclock z77a-g45 intel i7-3770k

4K views 5 replies 2 participants last post by  Theobeo 
#1 ·
Hello friends!

I managed to copy my OC genie 2 settings and overclocked the following:

CPU ghz from 4.2 to 4.5
CPU voltage from 1.142 to around 1.192 (I chose 1.215)
Cpu i/0 from 1.050000 to 1.070000
DDR3 ram to 1600 MHZ
DDr3 ram memory extreme NEABLED
ram voltage 1.666 voltage

This seems to be stable and my core temperature is 60 degrees.

I wanted to attempt a further increase to 4.7 ghz on my cpu, changing the following:

CPU ghz from 4.5 ro 4.7
CPU voltage from 1.125 to 1.240
Cpu i/0 voltage from 1.07000 to 1.09000

This seems to cause my computer to freeze or get blue screens, but I managed to go back to 4.5 ghz.

Please confirm my actions as valid through this screenshot:

http://gyazo.com/0202d343dd39cbd87b4b6f26352102ef

four questions:

1. Is there any way I can get 4.7 ghz to work doing the approach I made?
2. Do you think 60 celcius in core temperature is fine to go from 4.5 to 4.7 with? (without stress test)
3. Should I make a stress test with 4.5 ghz BEFORE making further adjustsments, and at what temperature should I think that my core is at risk?
4. My CPU-Z shows me that my memory is at 800 MHz. on DRAM frequency. Is that correct when I copied the settings from standard automatic overlock OC GENIE 1600 mhz DDR3 ram frequncy with around 1.650 volt? Now I use 1.666 volt at 1600 MHZ ddr3 ram

Ram screenshot: http://gyazo.com/9858087e9c9f9199c7dd33a524b88c82

Though I only have 212 hyperevo and I can idle in bios /windows with 60 degrees celcius on my CPU, I believe I can run stable even at 24/hour stress tests which I will attempt now, though I am not sure how or what is best.

These are my temperature stats, note that the temperatures seems stable mostly between 68 and 72 degrees celcius, only topping above 75 for brief moments.

Using realtemp and prime95 stresstest, My cores went up to about 90-95 degress celcius for several minutes before getting BSOD.

This is my first overclock attempt, please bare with me since I am a noob but I think I understand the procedure now.

I read that it´s also possible to control a fan speed using speedfan. I use hyperevo 212, but apparently speedfan recognizes 3 fans at 0 rpm. How do I fix this problem?

If I wish to inch it up to 4.6 or 4.7, do you think it´s safe to process with 95 celcius max stresstest? Do I need more voltages?

I sincerely thank you.

Regards
 
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#2 ·
You're going to need more CPU voltage it seems for 4.7 GHz. Try around 1.27 to 1.34 CPU voltage. Start from 1.27v and work up until you find the CPU voltage that is stable at 4.7 GHz.

If I was you, I'd stay under 85°C during stress testing.

I wouldn't rely on speedfan for fan speed reading. These readings could even be from fan headers on the motherboard that don't even have fans plugged in. I would ignore this unless you literally see a fan plugged into your motherboard that is not spinning.
 
#4 ·
I would never go above 80°C for 24/7 use to be safe. Always stay under 85°C when stress testing to ensure that your CPU will not burn out or degrade quickly due to high temperatures above that.
 
#5 ·
idling at 60°C is horrible.

Edit: My bad double posted.

Honestly, whenever I get a high end i7 cpu, I would never get the hyper evo 212, I would at least gotten a better CPU cooler such as an AIO e.g Cooler Master Glacier 240L / Thermaltake Water 3.0 Extreme / Corsair H100i / H110. Heatsink coolers such as the Thermaltake Frio, or some other heatsink cooler that is alot better in temperatures, just my opinion.
 
#6 ·
I think I would prefer heatsink. Do you have any further recommendations?

I litterally made a test in my most played game forcing me down to 5 fps. The temperatures only topped to 77 celcius, and this is a brief moment quickly going down to 60 degress.

Is this not safe for i7 ivy processors?

Also it appears when I played a presumably less cpu-stressing-game, CSGO, that my cpu spikes to 90 degress and I crashed, CSGO crashed, i suppose the throttling may have caused that.

When I go back to the OC settings I have been using for a year, my idling temps are 55-57, only 3-5 celcius less than with 4.5 ghz. Would there be any reasons that I crash becauses of high temp spiking when I play CSGO?

With 4.2 ghz my temps still go to 88-90 in csgo
 
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