2500k boost oc to 4 ghz

[Roooker]

Hi,
i just got some free time today and decided to change my oc.
I don't want a heavy oc, just need some more power at the video rendering i do from time to time.
Previously i was running a 4Ghz oc with my cpu not reducing multi at idle. Manual voltage, xmp enabled and everything else auto.

I now want to switch my oc method to boost oc, so it idles at 1.6 and 4,2 at load.

The only thing i can not make happen, is my cpu voltage dropping if the cpu is idle at 1.6.

I have never done a boost oc so i am a total n00b there. Maybe i am missing something ..? I was also wondering why i am getting high idle temps (36-38°) at 1,6 with a H100i with 120 quite sp fans on MX4.

 

[alienware]

Hey mate. Sadly you can't disable Speedstep or Turbo or Enhanced Turbo for this.

That means you need to let it do the voltage (well I'm 99% sure !).

Turbo overclocking is only visible *if* Speedstep, Turbo *and* enhanced turbo are enabled.

 

[FTLN]

Theres a good thread here on overclocking with boost, gives me great temps all the way up to 4.5ghz http://forum-en.msi.com/index.php?topic=159647.0

 

[alienware]

Theres a good thread here on overclocking with boost, gives me great temps all the way up to 4.5ghz http://forum-en.msi.com/index.php?topic=159647.0

That's pretty much how you overclock a non K tbh. You have 4 cycles on the boost

 

[Roooker]

Hey mate. Sadly you can't disable Speedstep or Turbo or Enhanced Turbo for this.

That means you need to let it do the voltage (well I'm 99% sure !).

Turbo overclocking is only visible *if* Speedstep, Turbo *and* enhanced turbo are enabled.

Hk ok no lower voltages on idle. Got that.


Idle temp are not right. Didn't let it idle at all.
Vcore set to 1,2 in bios 1,176 in cpu-z. Runs stable so far (about 30 mins.)

And AlienALX i have absolutely no idea what are you trying to tell me ...

 

[alienware]

C state should lower the voltage?!?! I think that's what it's for mate.

Can you please do me a favour whilst you're poking around?

Can you disable Speedstep and Turbo and Enhanced Turbo (Speedstep should disable all) and see if you can get to that Core Ratio Limit thing under CPU features with it disabled?

Master&Puppet said you can't which would make sense but I'm just wondering if the 4 bin clock is actually disabled on my Xeon (it shouldn't be but I can't find out atm due to a dead board :lol: )

What I am trying to tell you is this -

The way you want to overclock your CPU is not using a fixed multiplier right? you're instead using the 1-core limit ratio, 2-core limit ratio thing yes?

That is the turbo overclock according to Master&Puppet and doesn't show up if you have anything pertaining to it disabled (like EIST Turbo or Advanced Turbo).

That's why I asked you to disable it and see if the core limit ratio menu thing was still showing.

 

[Roooker]

If i disable Intel Turbo Boost i Can Not change the 1-core limit ratio.

 

[alienware]

Yay thanks man I appreciate that.

 

[Roooker]

I am still getting high idle temps at 1.6 Ghz and just under 1V cpu voltage....

 

[alienware]

Hmm that's odd. It may be because things are going to Auto? I know boards like to over volt CPUs.

 

[Roooker]

Hmm that's odd. It may be because things are going to Auto? I know boards like to over volt CPUs.

I just changed it back to auto to be able to reduce the cpu voltage when it is idle.
If i set the volts manually can get the cpu stable at 1.168 volts @ 4Ghz, but then it is on 1,176 V idle.


Both methods give me around 37 ° idle temps and nearly 80 yes freaking 80 ° prime95 small fft.
When i set manual voltage i get 75 °

But i have reaplied the MX4 3 times and pluged the fans (SP quite edition) direct into 12V and done several things to get the temps further down.

New bios version, new H100i firmware.
I will RMA my H100i next week, because the LED is also broken. I cant get it to shine blue. Hopefully the new unit will give me some better results. Otherwise i will sell my cpu and get a second hand 3570k or 3770k instead.

 

[FTLN]

Here are some of my settings for your reference using boost method overclock to 4.5, 3770k, auto voltage and h100i on msi z77a-gd65 -

Cpu Idle

Cpu Load

Bios Settings

 

[Roooker]

Just applied your settings. Now getting 70° on 4.2 Ghz with auto voltage. Prime95 voltage is 1.352 V and idle around 0.952 V

 

[FTLN]

Unfortunately there is nothinh more you can do to lower voltage whilst using a boost overclock.. Bios basically gives what it wants to the cpu,, Have you tried any other bios ?

 

[Roooker]

Unfortunately there is nothinh more you can do to lower voltage whilst using a boost overclock.. Bios basically gives what it wants to the cpu,, Have you tried any other bios ?

No, but i am happy with the results so far. Load temps droped about 10° and idle temps went down 3-5°. I will RMA my H100i anyways, because the LED is not working properly and then test some more if i get the new unit.

 

[alienware]

IIRC my Xeon at stock clock does around 35 idle and 55 load on a H60.

Mind you it would. Firstly it has no onboard GPU and secondly it's a much higher quality chip.