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Processor running at 802MhZ!! Strange problems. Please Advise or be aware. Core i7 4770k + 2133RAM -

post #1 of 5
Thread Starter 
Hello Guys

I'm currently in the process of building my own PC and for the time being, I only got the parts that I needed to make it start and run on Windows. For the sake of being detailed here are my parts(all of them brand new).

Corsair Carbide Air 540 - Case
Corsair 750W - 80+GOLD *Fully modular PSU
Asus Maximus VI Gene
Intel Core I7 4770k - 3.5Ghz
16GB Kingston HyperX Beast 2133Mhz
Samsung 840 EVO 120GB SSD



After I put them all together and started it for the first time, I got into the BIOS and saw that the Ram was set to 1333, so I changed it to 2133. Installed Windows 8. Installed AIsuite III. The software was showing that the CPU was jumping from 800Mhz to 4200mhz and back from time to time. I checked both Computer/Properties and Bios/Main tab to see what speed the processor was running at and both of them were showing 802Mhz.
When I went back into the Bios I saw that the "Target CPU Speed" was set to 4200Mhz. Bearing in mind that I'm still using the Intel stock cooler, I thought it would've been almost impossible to get 4.2. I changed it back to 3.5 and now the ram was reset to 1333 again. At least now it runns at 3.5 and it seems to be quite stable. Please note that I left all the options in bios on AUTO because I haven't worked with PCs or used bios for about 5 years and I got a bit outdated and didn't want to start changing things without watching some bios tutorials first.

My current (researched)guess would be that the Bios upgraded the system to be able to cope with the 2133mhz Ram and that's why I found the processor targeting 4.2. Because it could not handle it, for protective reasons, it started running at 800mhz.


Can someone with more experience confirm/deny my suspicions and suggest a way of making the ram work at 2133 with the stock settings. (please note that I have already tried 1600mhz and it still does not support it - same 800mhz processor issue). If you advise on inputting CPU Freq and Voltage manually please suggest some figures I could try because too many tutorials suggest a lot of different values.


In case it helps, the AIsuite III (asus ROG) software shows that at the moment, my CPU is running at 3500mhz on 0.9xxx Volts



Any info would be much appreciated since I am really going purely on guesses and deductions I made from tutorials and forums.



Thanks
Edited by Fishr - 4/7/14 at 6:20am
post #2 of 5
Thread Starter 
Just for reference, later on I will be installing the H220 from Swiftech to cool my CPU.
post #3 of 5
I haven't played with that particular mother board but it sounds almost like one of the Asus auto over clock settings may have been activated. Does this motherboard have switches on it to enable Eco mode (tpu if I recall from my last Asus motherboard) and one for the auto over clock? That may be something to investigate.

I would open the bios and load optimized defaults. Then change your ram speed and reboot and see what happens.

You most like don't want to over clock on the stock cooler especially with the Asus profiles as they tend to run the CPU voltage higher than needed and produce quite a but of heat.

Sent from my Nexus 5 using Tapatalk
post #4 of 5
Thread Starter 
I haven't defaulted the Bios settings since the problem occurred from the very first installation which I assumed would've been already set on default. I will try that but I have a strange feeling it will still auto-OC everything as it sees fit.

And yes, I know you shouldn't OC with stock cooler. It was done AUTO. Probably if I had the h220 installed from the get-go, I wouldn't even have noticed any problems since it would've ran perfectly on 4.2. For the time being I was wondering if I could at least use my rams at 2133. Or to get some ideas on whether or not my assumption was right
post #5 of 5
Sorry for posting again, but I can't seem to be able to edit my post with Tapatalk on my phone.

I looked up the manual for your motherboard and it looks like it does not have switches on the board for Eco/over clock.

I would still try what I mentioned above. Hopefully it works out for you.

Sent from my Nexus 5 using Tapatalk
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Overclock.net › Forums › General Hardware › General Processor Discussions › Processor running at 802MhZ!! Strange problems. Please Advise or be aware. Core i7 4770k + 2133RAM -