Any advice on overclocking i5 6500 skylake?

[woody0111]

I've got a i5 6500 on a Asrock z170m pro4s which I'm interested in overclocking. I've never over locked before, only just built my first computer actually, and am struggling to find any decent guides.
One thing that has me confused is ,according to everything I've read, when overclocking non k CPUs it turns off the ability to measure the cpu temperature. How am I supposed to know that it's within a safe margin if I can't tell the temperature?
Any advise would be really appreciated.

 

[geofelt]

I am not experienced in non "K" overclocking.
Post how you do.

I find it hard to believe that the cpu would lose the ability to detect a dangerous temperature and shut itself down.

But, I think if you monitor Vcore, you will be ok.
It is the vcore that causes temperatures to rise.
It seems that a vcore of 1.40 is about the limit for safety on skylake.
You can monitor that with CPU-Z

Start at stock and gradually increase the BCLK and see how you do.
You probably should have a better cooler than the stock intel cooler.
Something like a tower type air cooler with a 120mm fan. Cryorig H7 or cm hyper212 for example.

 

[woody0111]

I found it weird about the cpu temp thing to but I've read it in a few places. I'll try and find a link. I think ti still shuts down but the temperature always shows as 100 in the bios or any programs.
Luckily I'm not using a stock cooler, I'm using a silver stone ar02 which is doing a pretty decent job. Ran prime95 for 5 hours and it never went over 40.

 

[IInuyasha74]

There isn't any logically reason it would lose the ability to monitor the heat, but there is an easy and safe way to find out. Overclocking the non-K CPUs is all about increasing the BCLK aka Base clock aka FSB etc.

Simply go into your BIOS, find the BCLK setting, increase it to 102 MHz. This increase shouldn't be enough to make anything unstable, but at the same time it has been overclocked. So if overclocking it will disable the chips ability to monitor its temp, it will do with a slight OC just like it would a high OC. Boot the computer, run Prime95, check your temps. If you are still getting a temp reading, you know that what you heard before was just rumors and you can safely keep pushing the CPU up so long as you don't give it too much voltage and the heat doesn't increase too much.

 

[woody0111]

Well I've managed to overclock it, only to around 3.8ghz at this point, and it does indeed disable cup temperature read outs. Very strange. Hers a snippet from overclock.guides to prove it
The non-K BIOS is skipping some parts of the power-management, so there are few things you have to keep in mind:

"The missing power-management will not allow to read out any core temperature. No matter which tool you use, it will always just read 100°C.
No C-States. CPUs will always run full speed and full voltage.
No Turbo-Mode.
No iGPU.
Intel AVX is screwed. Some benchmarks like Intel XTU use AVX and you will have about 4-5 times lower score. As far as I know no game is using AVX so it’s no problem to use this for gaming rigs. Not suitable for professional usage tho.
Avoid high memory clocks. Everything around 2600 MHz will be fine."

It's very strange and makes me a little uncomfortable lol.
Pretty easy though.

 

[IInuyasha74]

Yea the turbo boost and C-states are disabled because there are stability problems when Asrock left them enabled, so they were forced to keep them off when overclocking. Just was unaware the temperature monitor got messed up too. It is cool to get to OC those chips, but it does have some nasty side effects.

If you were topping out at 40C with stock voltage, you are probably safe to push the voltage up some more and can probably push past 4 GHz, just tread lightly. Don't want things getting too warm.

 

[woody0111]

Yeah, I was thinking I might cap it at 4ghz.
I don't do anything particularly strenuous anyway, just a bit of light gaming really. it's just a case of doing it to see if I could. I might even go back to standard settings and only overclock in the future if I feel the need.