4770k!

[Precadog]

Hey guys, just signed up!

 

I have never really found the need to overclock but have been playing around tonight and wanted to get some insight into my results, and what I'm doing right and wrong.

 

I have found a stable OC on my 4770k with 1.225v @ 4.3Ghz Using the small test with prime 95 with the highest temp being 80c on one of the cores (3).

 

I tried a few other combinations:

1.2v @ 4.3 - fail after 50% heat up on first test.

1.225 @ 4.5 - no boot.

1.275 @ 4.4 - stopped test when temps hit 84+ only 10% in the first heat up testing.

 

So with those quick tests, voltage/heat wise and clock speed I think 1.225v @ 4.3 no hotter then 80c, it isn't too bad? ( accepting criticism here because I really have no idea if it's solid or not )

 

Let me know what you think, as I've never really got too engaged into OC'ing when keeping up to date with the newer technologies, just want to try it out!

 

And if it makes any difference I have my RAM clocked at 2400Mhz.

 

Cheers!

-prec

[ir_cow]

I wrote a guide here a OCC How to Overclock an Intel 4770K Guide . It may help you with different combinations. Personally the best I could get was 4.5 @ 1.25v but ccoke was able to get 4.8hghz out of his sample chip.  The Haswell is all over the place but it seems 4.5ghz is about as far as most people get.

 

If your running at 2400mhz you need to set the SA, IO voltage higher than stock. I needed +.195 just to keep 4.2ghz stable.

 

Memory BIOS Options:

Memory speeds can be adjusted by DRAM frequency or X.M.P. (Extreme Memory Profiles). I suggest setting the X.M.P. first before playing with any other voltage or CPU multiplier. If you do not have X.M.P. profiles, you can manually set the DRAM frequency and DRAM voltage. The following advanced settings are voltage adjustments for the memory controller on the CPU. These adjustments are "System Agent Voltage", "I/O Analog Voltage", and "I/O Digital Voltage" that deal with high speed memory. Lower speeds like DDR3-1600 will not need or see the benefit from a raise in voltage, but for example speeds of DDR3-1866 and higher might stabilize a high overclock. While using DDR3-2400 memory I raised the System Agent to 1.18v to stabilize an OC of 4.5GHz. The results will vary and if you find your overclocks are failing when you raise the memory past 1600 then this will be helpful.

 

[rieds]

im stable at 4.6 @ 1.2v. 

Edited May 6, 2014 by rieds

[WarWeeny]

First, welcome to OCC!

 

80c is quite hot if you ask me (others can and will disagree with me here), I would settle with 70 to 73c max temp.

Even if you would lower the overclock to, let's say 4 Ghz, then your performance loss is quite minimal (in real world performance that is) and you can lower the v-core and temps for a safer and stable system.

 

Just my 2 cents though ;P

 

 

 

im stable at 4.6 @ 1.2v. 

 

You have an FX processor and not an i7 4770k....

[IVIYTH0S]

delidding time?

[rieds]

i have a 4770k i just havent changed my sig.

[ir_cow]

for 1.25v @ 80c is normal. those chips get hot quickly with voltage. Most Haswells are different, mine works at 4.2ghz @ 1.1v and just for 100mhz I start to need to bump everything up much higher. If your not going for the highest clocks, I would try to find a sweet spot heat vs performance gain.

[El_Capitan]

for 1.25v @ 80c is normal. those chips get hot quickly with voltage. Most Haswells are different, mine works at 4.2ghz @ 1.1v and just for 100mhz I start to need to bump everything up much higher. If your not going for the highest clocks, I would try to find a sweet spot heat vs performance gain.

 

Not unless you delid it.

[El_Capitan]

To the OP. I usually create a spreadsheet of my overclocks, voltages, and temps. I jump around a bit since I know it'll take a few jumps in voltages to get the next 100MHz overclock stable, in case you're wondering why some areas are blank.

 

What's important is to track the voltages you set in your BIOS, and also from CPU-Z (or directly from your motherboard), and your LLC setting. If you set a loose LLC setting, you might have set 1.225V's in your BIOS, but when you're at load in your OS with your stress test application, you might only be going up to 1.18V's due to your LLC level and whether you're setting your CPU Voltage in Offset or Manual mode.

 

Edited May 6, 2014 by El_Capitan

[ir_cow]

what chip is that captain?

[El_Capitan]

what chip is that captain?

 

That's my silver (not-quite-golden) delidded 3770K. It can get to 5.1GHz pretty easily at 1.464V's.

 

At 3.4GHz, it's stable at 0.85V's. I didn't try going lower, but it possibly could.

Edited May 6, 2014 by El_Capitan

[IVIYTH0S]

 

what chip is that captain?

 

That's my silver (not-quite-golden) delidded 3770K. It can get to 5.1GHz pretty easily at 1.464V's.

 

At 3.4GHz, it's stable at 0.85V's. I didn't try going lower, but it possibly could.

 

Gimme!