NearWire :
ingtar33 :
it should be fine. that i5 shouldn't draw more then 160W no matter how overclocked, and the graphics card likely won't go much higher then 300W... so you should be good.
How would one overclock the processor and video card? The reason why I included "no OC" was mainly because I didn't know how to do it.
well, there are dozens of guides... but i can give you the quick and dirty. you likely will have to use this as a "starting point" and then read further to learn more. but here we go...
1) Overclocking a GPU: This is really easy, you'll use a program called MSI Afterburner and Kompresor (they come bundled together for free from the MSI webpage). there are two main settings to clock up, one is the gpu clock speed, the other is the vram clock speed. Both affect graphic performance. MSI Afterburner comes with little popup instructions and a bunch of info on line for how to use it. Basically you clock the gpu up, test it with kompressor, if it crashes your computer, or crashes the graphic driver it's obviously a poor overclock, and you dial it back. trial and error basically. Its almost imposible to damage something with MSI Afterburner, so play with it to your heat's content.
2) Overclocking the CPU: It is possible to damage something overclocking a cpu, it won't happen if you follow my instructions, but it can happen if you do something stupid, cause you'll be playing with stuff in the bios that can potentially damage your system if you play with them wrong. Understand this is a general guide, only meant to give you the basics of safely overclocking your cpu. if you want to learn how to press it to the limits safely, i suggest you read more detailed guides online
->download prime95
->download hwmonitor
->grab a notepad and write down everything you change
->you'll need an aftermarket cpu cooler, you'll notice my "overclocking" build has one included
->go into your bios (hit f1 when the computer is booting before you get to the windows logo... usually hitting f1 when the screen is still black will get you there)
->go to the advanced settings
->change the main setting from automatic to manual (most of the page under advanced in many bios out there will appeare grey'ed out until you change this to manual, then you will have access to almost everything)
->go to cpu multiplier, change the settings to manual, but leave them at their default
->change the power settings from automatic to manual, change vcore from automatic to manual
->turn off all POWERSAVINGS features. This is nessessary to help you test if your cpu is overclocked successfully and stable, as most powersaving features will unstabilize a system under a long stress test.
->now go back to your cpu multiplier. Bump it by +1. This will increase your clock speed by +100mhz, (clock speed is determaned by the cpu frequency * cpu multiplier) if you have the i5-4670k your base settings will be
cpu frequency: 100mhz (do not change this)
cpu multiplier: 34
so you'll increase the cpu multiplier by +1 = 35.
->now you'll save your settings and restart your pc, make sure it loads into windows without issue, restart the pc and load into the bios again; if it fails to start windows, or the computer fails to start up all together, skip down to "troubleshooting"
->now you'll bump the cpu multiplier another +1 = 36; save and boot into windows...
->keep bumping the cpu multiplier by +1 until the computer fails to load windows, loads windows but behaves clearly strangely, or fails to turn on at all.
Troubleshooting
->if your pc fails to turn on, and you cannot get into the bios, don't panic. this happens to everyone at some point in overclocking. many computers will fix this problem themselves, often all it takes is 3 failed boot attempts for the pc to reset its own bios to stock settings. If it fails to do this, you'll need to open your case and CLR_CMOS. your motherboard's instruction manual will tell you how to do this. This also has the effect of resetting your bios's settings to default settings. In which case you'll need to set your computer up to the last known good settings (this will mean your cpu multiplier will be -1 from the last attempt) in your bios, this will require you to change the power saving features back off, and turning things to manual. don't worry it's not as hard as it reads. it's pretty quick once you get used to it.
->if windows fails to load or behaves "wrong" (programs not loading or crashing, or the system seeming sluggish like it will crash at any moment) restart the computer and get into the bios, back the cpu multiplier down -1
-> now that we have a setting we know can run windows, you'll load into windows and start up HWMonitor. Then turn on Prime95, run a full prime burn with max heat and stress on the cpu and ram. Prime will crash, a cpu core will fail or your system will crash... don't worry we're expecting this, as we already know your system is at it's limits of stability. restart your computer, and go into your bios. Bump your vcore in a very small increment close to +0.01V (most bios will allow small bumps like this or even smaller; typically just hitting your arrow key on your keyboard will increase the vcore slightly, one bump of that key is all that's needed). Load back into windows and run prime95 again. Keep bumping your vcore in tiny increments and testing with prime95 until your system can run a good solid 8 hours on prime95 without overheating or crashing. Keep the vcore bumps small and be patient, playing with the vcore is the only part of this process that seriously runs the risk of damaging something, it might seem tedious, but this is really the only reliable way to keep this process safe for your computer hardware.
Congratulations you have a stable overclock!
Notes:
Max safe temps and voltages: Your max overclock is basically limited by the temps your cpu is running at. An Intel cpu shouldn't really run any hotter then 85C for a long period of time, though it is theoretically safe up to 95C... you'll have to use your own judgement for how hot is hot enough. My own belief is you don't overclock anything you can't afford to break... because you are running that risk no matter how careful you are. As a result i can be merciless on some of my eq, and at other times i really baby it. As for max voltage... generally most Haswell cpus overheat around 1.25V-1.3V on the vcore; some can take more voltage safely it depends on the chip, but i don't advise
ever putting more then 1.4V into a haswell cpu unless you have a thousand dollar cooling setup. That hyper evo cpu cooler won't let you go much beyond 1.25V though, so it's not really a concern. Use HWMonitor to keep a sharp eye on temps, and don't hesitate to pull the plug on prime95 if temps get too hot, it just means though your system might be stable, your cpu cooler isn't good enough to handle that overlcock and you'll have to back both the multiplier and vcore down a bit and try again.
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