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zpladson17

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Posts posted by zpladson17

    780ti only @ 50% power w/CPU overclock

    in General overclocking

    Posted

    I've now OC'd my 4690k to 4.4ghz, I also boosted my GPU up a bit, but max power I can get out of my 780ti is about 55-56%. I believe this is caused by a CPU bottleneck...

     

    At 4.4ghz, should a 4690k really be bottlenecking a 780ti to half its potential? Could it be something else going on?

     

    Thanks

     

    FYI: this was noticed while playing a game

     

     

    System Specs:

     

    Processor: Intel i5-4690k

    Cooler: Cooler Master Hyper 212 Evo

    Motherboard: Gigabyte Z97X-Gaming 7

    BIOS: American Megatrends

    Graphics: nVidia 780Ti 3gb

    RAM: 8GB

    OS: Win 8.1 Pro

    Power Supply: 750w

    Can't clock CPU past 4.2ghz??

    in Intel CPU Overclocking

    Posted

    Try setting proccesor voltage to override mode and @1.3V, cache voltage to override and @1.25V. The processor input voltage (VCCIN) needs to be 0.6V or more over the processor voltage. My i5 4670k is very average and can only do 4.5GHz at 1.375V (the volts is a bit high for daily).

     

    Are these BIOS settings? I'm not seeing override mode in XTU

    Can't clock CPU past 4.2ghz??

    in Intel CPU Overclocking

    Posted

    Welcome! Have you tried raising the core frequency only? With 1.2 V Vcore it's for sure possible to push the core frequency further, but cache frequency is another topic.

     

    Thanks! I have not tried raising the core frequency only, that'll be my next test here. Since I can run 4.2ghz core & cache at default core voltage, should I just try raising to 4.3ghz core and leave the voltage at default? I know it's trial & error but I'd rather have less errors haha.

     

    Also I've heard people talk about disabling boost mode as it can be harmful. True/false? I would imagine if it's set higher than your rig can handle that will be problematic.. however it's currently set @ default.

    Can't clock CPU past 4.2ghz??

    in Intel CPU Overclocking

    Posted

    Hey everybody, noob overclocker here, however I'm no stranger to computers. I built my rig a year ago and am deciding it's time to give it some more juice.

     

    i5-4690k w/Z97x Gaming 7 mobo using XTU:

    I understand that to raise the core/cache clock past a certain point, you need to up the core voltage. My CPU is stable at 4.2ghz with default/stock voltage settings, so I figured it's alright to leave it there. Temps are excellent under full CPU load with all cores enabled at around 49-52°C. I've tried pushing it to 4.3ghz with the core voltage at +1.2v and it crashes. I have not messed around with any BIOS settings as I've read many mixed posts on what people think is best to do in there. I'd like to think I have a decent rig as I invested quite a bit into it, and I know this CPU can push past 4.2 so I don't know where I'm going wrong. Any help appreciated!

     

    System Specs:

     

    Processor: Intel i5-4690k

    Cooler: Cooler Master Hyper 212 Evo

    Motherboard: Gigabyte Z97X-Gaming 7

    BIOS: American Megatrends

    Graphics: nVidia 780Ti 3gb

    RAM: 8GB

    OS: Win 8.1 Pro

    Power Supply: 750w

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