How to overclock a GPU and CPU

Dollas4Eva_SR

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Jun 3, 2015
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How would I overclock my GPU? Also, how would I overclock my CPU?

Do I need to go to the BIOS to do both? How do I get to the BIOS? Thanks guys.

In addition to your individual help, I would also like a video provided for me that clearly explains everything.

Processor to overclock: i7 4790K, what would you recommend to be the best overclocking solution so I DON'T BREAK my CPU and cause massive overheating problems. I'm not really sure if this CPU comes with a fan, but if it doesn't, the fan I chose was Cooler Master Hyper 212 EVO.

GPU to (if possible) overclock: EVGA GeForce GTX 970 4GB Superclocked ACX 2.0

THANK YOU!

 
Solution
For GPU overclocking, use a program such as MSI Afterburner to adjust clock speeds and such. It can be done within Windows.

CPU overclocking is a lot different. It has to be done in the BIOS. You can increase the clock multiplier.

You'll need a fair amount of research before attempting either of these because you can damage your hardware if you incorrectly adjust something. Do your research first.

Joshua Martin

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Sep 16, 2014
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For GPU overclocking, use a program such as MSI Afterburner to adjust clock speeds and such. It can be done within Windows.

CPU overclocking is a lot different. It has to be done in the BIOS. You can increase the clock multiplier.

You'll need a fair amount of research before attempting either of these because you can damage your hardware if you incorrectly adjust something. Do your research first.
 
Solution

Eximo

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I7-4790k is kind of already overclocked. 4.0-4.4Ghz. You might be able to get it a little further, 4.7-4.8Ghz is sort of common. Not really worth the effort to be honest.

Your motherboard my include overclocking profiles you can try out. How to get in the motherboard BIOS depends on the motherboard. DEL, F12, are quite common commands used immediately after the power is switched on. Newer enthusiast motherboards will have a BIOS button on the rear I/O panel or on the board itself (Computers can boot quite fast these days, these buttons were added so that it would be easier)

Here is a quick guide from a local Tom's submitter, doesn't really cover the i7-4790k though:

http://www.tomshardware.com/forum/id-1722630/intel-god-quick-dirty-guide-4ghz-haswell.html

My personal favorite:

http://www.overclock.net/t/1401976/the-gigabyte-z87-haswell-overclocking-oc-guide



GPU overclocking can be done via software. The program MSI Afterburner is quite good. To make it permanent you would indeed overwrite the GPUs BIOS. Not strictly necessary though.

Basically you increase the clock frequency by small amounts. When instability is reached you increase core voltage (power rating on GPUs) slightly. When you reach high temperatures or instability back off and use that as the highest point.

 
I can't imagine not overclocking....

1. GPU Overclocking is very simple. Recognize that some brands overclock better than others.... the EVGA 970 SC is somewhat limited in this respect for reasons you will understand if you pay attention to the details here:

http://www.bit-tech.net/hardware/graphics/2014/09/19/nvidia-geforce-gtx-970-review/3

The EVGA performs very similar to the Asus so you can use the settings here as a starting point

http://www.guru3d.com/articles_pages/asus_geforce_gtx_970_strix_review,26.html

With AfterBurner we applied:

Temp Target 80 Degrees C
GPU clock +150 MHz
Power limiter 120%
Mem clock +450 MHz
Volatge + 37 Mv
FAN RPM 50% (remains silent)

2. Using MSI Afterburner, make all the adjustments above, but don't touch memory for now. Run Unigine Valley Benchmark and record results (I do 4 times and average top 3) .... NOTE: Highest OC will not bring highest fps results.

3. If no stutters, artifacts or other problems, up by 10 Mhz and try again .... if problem evident drop by 10.

4. Once you have zeroed in on clock speed.... start on memory in same manner. Test stability with Furmark

As for the CPU, what MoBo you got ?